Mounting bracket, in-mold forming device, and press forming method for mounting bracket

Abstract

The application provides a mounting bracket, an in-mold forming device and a stamping forming method of the mounting bracket. The mounting bracket is formed by stamping a plate and comprises a base plate and first and second side plates arranged on both sides of the base plate. A mounting part for mounting a lamp is formed on the base plate by stamping. A first connecting arm is formed on the first side plate by stamping, and a first stamping part is formed at the end of the first connecting arm close to the second side plate. A second connecting arm is formed on the second side plate by stamping, and a second stamping part is formed at the end of the second connecting arm close to the first side plate. One of the first and second stamping parts is a protrusion, and the other is a groove matched with the protrusion. The first connecting arm and the second connecting arm extend towards each other and are fixedly matched through the protrusion and the groove. Compared with the prior art, the mounting bracket of the application is matched through the protrusion and the groove, so that the first connecting arm and the second connecting arm are fixedly connected, thereby increasing the connecting strength of the mounting bracket.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and in particular to a mounting bracket, an in-mold forming device, and a stamping method for the mounting bracket. Background Technology

[0002] As people's living standards continue to improve, fan lights that integrate fan and lighting functions are gradually becoming a new favorite in the market. These fan lights are usually secured with mounting brackets, and the installation process is roughly as follows: first, fix the mounting bracket to the mounting base, and then tightly connect the fan light's hanging structure to the mounting bracket.

[0003] In current production practices, the manufacturing of mounting brackets mainly relies on traditional stamping production processes. After completing continuous stamping production, this process often requires manual labor and the use of jigs for welding operations to complete the fixed connection between the connecting arms of the mounting bracket.

[0004] This production method has several problems, such as high production costs, cumbersome processes, and low efficiency. First, manual welding not only incurs additional labor costs, but also consumes relatively high amounts of materials such as fixtures and welding materials, undoubtedly increasing overall production costs. Second, manual welding can lead to inconsistent weld spatter sizes, affecting the product's appearance. Furthermore, stress concentration and deformation issues that may occur during welding make it difficult to guarantee the product's precision and stability. Summary of the Invention

[0005] The purpose of this invention is to solve the welding problem of mounting brackets and to provide a mounting bracket that can fix the connecting arm without welding.

[0006] To achieve the above objectives, the present invention provides a mounting bracket formed by stamping a sheet metal, comprising:

[0007] A substrate is stamped to form a mounting portion for mounting a lamp. A first side plate and a second side plate are respectively provided on both sides of the substrate. A first connecting arm is stamped on the first side plate, and a first stamped portion is stamped on the end of the first connecting arm near the second side plate. A second connecting arm is stamped on the second side plate, and a second stamped portion is stamped on the end of the second connecting arm near the first side plate.

[0008] One of the first stamping part and the second stamping part is a protrusion, and the other is a groove that is spliced ​​with the protrusion. The first connecting arm and the second connecting arm extend towards each other and are fixedly spliced ​​together by the protrusion and the groove.

[0009] Optionally, the extension direction of the protrusion and the recess direction of the groove are the same as the length extension direction of the first connecting arm / second connecting arm, and the protrusion and the groove are matched or interference-fitted on the same horizontal plane.

[0010] Optionally, the protrusion is a bump, and the shape of the groove matches the bump, and / or,

[0011] The protrusions are several tooth-shaped protrusions, and the grooves are several tooth-shaped grooves that match the tooth-shaped protrusions. The tooth-shaped protrusions and the tooth-shaped grooves are respectively connected and engaged one-to-one.

[0012] Optionally, a stamping groove is provided at the joint between the first stamping part and the second stamping part, the stamping groove at least partially covering the first stamping part and at least partially covering the second stamping part.

[0013] Optionally, the first stamping portion and the second stamping portion include a lower surface facing the substrate and an upper surface opposite to the lower surface, and stamping grooves are provided on both the upper surface and / or the lower surface.

[0014] The purpose of this invention is to solve the above-mentioned problems and provide an in-mold forming device that can improve production efficiency.

[0015] To achieve the above objectives, the present invention also provides an in-mold forming apparatus for integrally stamping sheet metal into the aforementioned mounting bracket. The in-mold forming apparatus includes: a stamping assembly, a forming assembly, and a riveting assembly.

[0016] The stamping assembly is configured to stamp a sheet metal into a planar support, the planar support including a first connecting arm and a second connecting arm that are not connected, the stamping assembly stamps a first stamped part on the first connecting arm and stamps a second stamped part on the second connecting arm;

[0017] The forming component is configured to bend the planar support into a Z-shaped support, and to stack the first stamping part and the second stamping part.

[0018] The press-fit assembly is configured to press-fit the first stamping part and the second stamping part together on the same horizontal plane.

[0019] Optionally, the riveting assembly includes a riveting member and a base, wherein the riveting member and / or the base are provided with a pressing protrusion at the joint of the first stamping part and the second stamping part, and the pressing protrusion is configured to form a stamping groove at the joint.

[0020] Optionally, the first connecting arm / second connecting arm has a length direction and a width direction, and the riveting assembly has limiting members at the corresponding splicing points on both sides in the length direction. The limiting members are configured to limit the width of the first connecting arm and the second connecting arm in the width direction.

[0021] The purpose of this invention is to solve the above-mentioned problems and provide a stamping method for mounting brackets that can save production costs.

[0022] To achieve the above objectives, the present invention also provides a stamping forming method for a mounting bracket, wherein the above-mentioned in-mold forming device is used to stamp a sheet metal to form the mounting bracket, and the stamping forming method for the mounting bracket includes the following steps:

[0023] The material strip is set on the feeding assembly, and the material strip includes several sets of plates;

[0024] The feeding assembly transports the sheet metal to the stamping assembly, which then stamps the sheet metal into a flat support. A first stamped part is formed on the first connecting arm of the flat support, and a second stamped part is formed on the second connecting arm of the flat support.

[0025] The feeding assembly transports the sheet metal to the forming assembly, which then bends the flat support into a Z-shaped support and sets the first and second stamping parts in a stacked manner.

[0026] The feeding assembly transports the sheet metal to the riveting assembly, which then rivets the first and second stamping parts together on the same horizontal plane.

[0027] Optionally, the riveting assembly has a pressing protrusion at the joint between the first stamping part and the second stamping part, and the pressing protrusion forms a stamping groove at the joint between the first stamping part and the second stamping part.

[0028] Compared with the prior art, the technical solutions of the embodiments of the present invention have the following beneficial effects:

[0029] The mounting bracket of this invention is fixedly spliced ​​together by a first stamping part and a second stamping part, thereby fixing the first connecting arm and the second connecting arm together and increasing the connection strength of the mounting bracket. The splicing design of the protrusion and groove makes the first connecting arm and the second connecting arm flat at the connection point, without any protruding parts, improving the overall aesthetics of the product. In addition, the fixed splicing of the protrusion and groove eliminates the need for welding, simplifying the process and reducing production costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the mounting bracket conforming to a preferred embodiment of the present invention;

[0031] Figure 2 yes Figure 1 A diagram from another angle;

[0032] Figure 3 yes Figure 2 A partial view of the area within the middle circle;

[0033] Figure 4 This is a schematic diagram of the structure of the in-mold forming apparatus according to a preferred embodiment of the present invention;

[0034] Figure 5 yes Figure 4 Exploded view of the in-mold forming device;

[0035] Figure 6 This is a schematic diagram of the structure of the riveting assembly conforming to a preferred embodiment of the present invention before riveting;

[0036] Figure 7 yes Figure 6 A structural diagram from another angle;

[0037] Figure 8 This is a schematic diagram of the riveting assembly conforming to a preferred embodiment of the present invention during the riveting process;

[0038] Figure 9 yes Figure 8 A schematic diagram of the structure of the press-fit component;

[0039] Figure 10 yes Figure 8 A schematic diagram of the middle slider;

[0040] Figure 11 yes Figure 5 Schematic diagram of the structure of the feed strip;

[0041] Figure 12 yes Figure 11 Partial color illustration of the feed strip;

[0042] Figure 13 yes Figure 12 A partial view of the area within the middle circle;

[0043] Figure 14 yes Figure 13 A structural diagram from another angle;

[0044] Figure 15 yes Figure 12 Schematic diagram of the planar support at point A;

[0045] Figure 16 yes Figure 12 Schematic diagram of the bracket installed at point B;

[0046] Figure 17 yes Figure 12 A schematic diagram of the bracket installed at point C.

[0047] The components in the attached diagram are labeled as follows:

[0048] Substrate 1, mounting part 11, through hole 111, abutting part 112, notch 113, first side plate 2, second side plate 3, fixing part 4, mounting hole 41, first connecting arm 42, first stamping part 421, splicing edge 4211, second connecting arm 43, second stamping part 431, stamping groove 5, mounting bracket 100.

[0049] Upper mold base 201, lower mold base 202, feeding assembly 203, stamping assembly 204, forming assembly 205, riveting assembly 206, riveting part 2061, pressing protrusion 2611, base 2062, limiting part 2063, slider assembly 2064, sliding seat 2641, slider 2642, feed port 207, discharge port 208, cutting assembly 209, in-mold forming device 200;

[0050] Material strip 300, flat support 301, zigzag support 302, sheet material 303. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0053] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Please see Figures 1 to 17 As shown, an embodiment of the present invention provides a mounting bracket 100 for mounting a lighting fixture (not shown). In this embodiment, the lighting fixture is a fan light; in other embodiments, it could be any other suspended lighting product. The mounting bracket 100 includes a base plate 1, a first side plate 2, and a second side plate 3. The first side plate 2 and the second side plate 3 are respectively disposed on opposite sides of the base plate 1 and extend from the base plate 1 in a direction away from the base plate 1. Both the first side plate 2 and the second side plate 3 are provided with fixing portions 4, and the fixing portions 4 are provided with mounting holes 41. A mounting component (not shown) passes through the mounting holes 41 and connects to a mounting surface (not shown) to fix the mounting bracket 100 to the mounting surface. The mounting component is a screw, bolt, or other similar part. The base plate 1 is provided with a mounting portion 11 for mounting a sling structure (not shown) for mounting the lighting fixture, thereby fixing the lighting fixture to the mounting bracket 100. The mounting portion 11 includes a through hole 111 formed on the base plate 1, an abutment 112, and a notch 113 connected to the abutment 112. The abutment 112 is strip-shaped and surrounds the through hole 111. The hoisting structure enters through the notch 113 and abuts or snaps against the abutment 112 to achieve a detachable connection between the hoisting structure and the installation part 11, making the installation and disassembly of the lamp simple and quick.

[0055] In some embodiments, the fixing portion 4 located on one side of the first side plate 2 includes a first connecting arm 42, and the fixing portion 4 located on one side of the second side plate 3 includes a second connecting arm 43. The first connecting arm 42 is disposed on the first side plate 2, and the second connecting arm 43 is disposed on the second side plate 3. The first connecting arm 42 and the second connecting arm 43 are correspondingly disposed and extend towards each other. The end of the first connecting arm 42 near the second side plate 3 is provided with a first stamping portion 421, and the end of the second connecting arm 43 near the first side plate 2 is provided with a second stamping portion 431. The first connecting arm 42 and the second connecting arm 43 are fixedly spliced ​​by the first stamping portion 421 and the second stamping portion 431. Furthermore, the first stamping portion 421 and the second stamping portion 431 are located on the same horizontal plane. The first stamping portion 421 and the second stamping portion 431 include a lower surface facing the substrate 1 and an upper surface opposite to the lower surface.

[0056] Please see Figures 1 to 3 As shown, in this embodiment, the fixing part 4 has two first connecting arms 42 and two connecting arms 43 at its two ends, respectively. The first connecting arms 42 and the second connecting arms 43 are correspondingly arranged and extend towards each other. Both the first connecting arms 42 and the second connecting arms 43 have a length direction and a width direction. The length direction is the direction in which the first connecting arm 42 or the second connecting arm 43 extends, and the width direction is the direction in which the first connecting arm 42 or the second connecting arm 43 extends. A first stamped part 421 is stamped at the end of the first connecting arm 42 near the second side plate 3, and a second stamped part 431 is stamped at the end of the second connecting arm 43 near the first side plate 2. By splicing the first stamped part 421 and the second stamped part 431 on the same horizontal plane, the first connecting arm 42 and the second connecting arm 43 are fixedly connected, thereby increasing the connection strength of the mounting bracket 100.

[0057] In this embodiment, the first stamping portion 421 is a protrusion that extends from the first connecting arm 42 toward the second connecting arm 43, and the extension direction of the protrusion is the same as the length direction. The second stamping portion 431 is a groove that matches the protrusion, and the shape of the groove matches the shape of the protrusion. The groove extends from the second connecting arm 43 toward the direction away from the first connecting arm 42 in the length direction.

[0058] In other embodiments, the first stamping portion 421 may also be a groove, and the second stamping portion 431 may be a corresponding protrusion.

[0059] In this embodiment, the first stamping part 421 is a protrusion, and the second stamping part 431 is a groove. The protrusion and the groove are of equal size and are matched and connected. After the protrusion and the groove are spliced ​​together, they can fit together to form a tight contact surface, thereby effectively resisting external forces, reducing the risk of loosening due to vibration or impact, and thus enhancing the overall strength of the connection. Furthermore, the protrusion includes two splicing edges 4211 arranged opposite to each other, and the two splicing edges 4211 are in a gradually expanding trumpet shape to increase the contact area and increase friction.

[0060] In other embodiments, the size of the protrusion is larger than the size of the groove, and the protrusion and groove are interference-fitted. By riveting on the first stamping part 421 and the second stamping part 431, the protrusion and groove can be engaged more tightly.

[0061] In some embodiments, the first stamping portion 421 is a toothed protrusion, and the second stamping portion 431 is a toothed groove that matches the toothed protrusion. Alternatively, the first stamping portion 421 is a toothed groove, and the second stamping portion 431 is a toothed protrusion that matches the toothed groove.

[0062] In other embodiments, the first stamping part 421 comprises multiple toothed protrusions, and the second stamping part 431 comprises multiple toothed grooves. The toothed protrusions and toothed grooves are connected in a one-to-one meshing manner to ensure the tightness and stability of the connection. Preferably, the multiple toothed protrusions are arranged alternately or continuously on the first stamping part 421, and the protrusion lengths of the toothed protrusions are different, which can disperse the stress at the connection point, so that the stress is not on a straight line, reducing damage caused by local stress concentration. This arrangement can increase the contact area between the toothed protrusions and toothed grooves, increase the tightness of the splicing, and thus increase the overall structural strength.

[0063] In some embodiments, a stamping groove 5 is provided at the joint of the first stamping portion 421 and the second stamping portion 431, and the stamping groove 5 is disposed on the upper surface. The stamping groove 5 at least partially covers the first stamping portion 421 and at least partially covers the second stamping portion 431. After the first stamping portion 421 and the second stamping portion 431 are engaged, the stamping groove 5 forms a local interlocking effect at the joint of the first stamping portion 421 and the second stamping portion 431 to increase the connection strength between the protrusion and the groove. Furthermore, the stamping groove 5 will generate local deformation on the first stamping portion 421 and the second stamping portion 431, causing stress concentration in this area, which to a certain extent increases the yield strength of the material, making the joint more secure. In addition, the stamping groove 5 will be in close contact with the side of the protrusion, increasing the friction between the two.

[0064] In some embodiments, the stamping groove 5 is disposed on the lower surface and located at the junction of the first stamping part 421 and the second stamping part 431.

[0065] In this embodiment, stamping grooves 5 are provided on both the upper and lower surfaces to increase the contact area after the first stamping part 421 and the second stamping part 431 are spliced ​​together, ensuring that a solid connection node is formed at the splice and significantly improving the splicing strength.

[0066] Figure 4 This is a schematic diagram illustrating an example of a stamping apparatus for manufacturing the mounting bracket 100 by stamping. The in-die forming apparatus 200 is used to integrally stamp the sheet metal 303 on the strip 300 into the mounting bracket 100. Figure 4 The in-mold forming apparatus 200 shown includes an upper mold base 201 and a lower mold base 202, with the lower mold base 202 located directly below the upper mold base 201.

[0067] Please see Figures 4 to 5 As shown, a strip 300, a feeding assembly 203, a stamping assembly 204, a forming assembly 205, a riveting assembly 206, and a cutting assembly 209 are provided between the upper die holder 201 and the lower die holder 202. An inlet 207 and an outlet 208 corresponding to the strip 300 are respectively provided at both ends of the upper die holder 201 and the lower die holder 202. The strip 300 enters the feeding assembly 203 through the inlet 207 and exits through the outlet 208. The lower die holder 202 is fixed, while the upper die holder 201 can reciprocate vertically relative to the lower die holder 202, allowing the upper die holder 201 and the lower die holder 202 to stamp the strip 300.

[0068] In other embodiments, the upper die holder 201 and the lower die holder 202 can also be arranged left and right, so that one of the upper die holder 201 and the lower die holder 202 is fixed and the other reciprocates relative to it to press the strip 300.

[0069] The strip 300 includes several sets of sheet metal 303. The stamping assembly 204 performs punching, cutting, and stamping processes on the sheet metal 303 on the strip 300 to form through holes 111 and abutment parts 112, and stamps each set of sheet metal 303 into a flat support 301. The punching process is applied to the center of the sheet metal 303. The cutting and stamping processes are applied to the periphery of the center of the sheet metal 303, stamping to form a mounting part 11, a first side plate 2, a second side plate 3, and a fixing part 4 on the substrate 1. The cutting process forms a non-connected first connecting arm 42 and a second connecting arm 43 on the flat support 301; the cutting process is applied to the connection between the center of the sheet metal 303 and the first connecting arm 42 and the second connecting arm 43 to form a first stamped part 421 on the first connecting arm 42; and a second stamped part 431 on the second connecting arm 43.

[0070] The forming component 205 performs forming and punching processes on the sheet metal 303, bending the flat support 301 into a U-shaped support 302, wherein the first stamping part 421 and the second stamping part 431 are stacked. The punching process removes the edge connecting arm of the through hole 111 as a locking position to form a notch 113 on the U-shaped support 302.

[0071] Please see Figures 6 to 8 As shown, the riveting assembly 206 performs riveting and press-fitting processes on the first connecting arm 42 and the second connecting arm 43. The riveting process involves pressing the first stamping part 421 and the second stamping part 431 together on the same horizontal plane. The riveting assembly 206 includes two riveting elements 2061 and two bases 2062. Both riveting elements 2061 are disposed in the upper die base 201, and the two bases 2062 are disposed in the lower die base 202. The riveting element 2061 is a punch. The first connecting arm 42 and the second connecting arm 43 are placed on the base 2062. One of the riveting elements 2061 passes through the notch 113 and presses against the first connecting arm 42 and the second connecting arm 43 to make them join on the same horizontal plane.

[0072] In this embodiment, the riveting assembly 206 further includes a slider assembly 2064. The slider assembly 2064 includes a sliding seat 2641 and a slider 2642. The sliding seat 2641 is disposed in the lower mold base 202, and two bases 2062 are respectively disposed on both sides of the sliding seat 2641. The slider 2642 is slidably disposed on the sliding seat 2641 and is located on the side away from the notch 113. Another riveting component 2061 presses down on the slider 2642, driving the slider 2642 to move down to abut against the first connecting arm 42 and the second connecting arm 43 on the side away from the notch 113. The slider 2642 presses against the first connecting arm 42 and the second connecting arm 43, so that they are spliced ​​on the same horizontal plane, such as... Figure 1 and Figure 13 As shown.

[0073] The first stamping part 421 and the second stamping part 431 are either transition fits or interference fits. Preferably, the first stamping part 421 and the second stamping part 431 are interference fits, and the first stamping part 421 and the second stamping part 431 are more tightly engaged by the pressing of the riveting part 2061. That is, when the punch rivets, the protrusion is forcibly pressed into the groove, forming a tight mechanical interlock; ensuring that the riveting point is not easy to loosen when subjected to external force, thereby improving the stability and reliability of the connection.

[0074] Please see Figures 8 to 10As shown, in the riveting process, in some embodiments, the bottom of the riveting member 2061 is provided with a pressing protrusion 2611 corresponding to the splice of the first stamping part 421 and the second stamping part 431. The riveting member 2061 is pressed down to the splice of the first stamping part 421 and the second stamping part 431, and the riveting member 2061 continues to be pressed down until the pressing protrusion 2611 forms a stamping groove 5 at the splice.

[0075] In other embodiments, the bottom of the slider 2642 is provided with a pressing protrusion 2611 corresponding to the splice of the first stamping part 421 and the second stamping part 431. The pressing member 2061 is pressed down to the splice of the first stamping part 421 and the second stamping part 431, and the pressing member 2061 continues to be pressed down until the pressing protrusion 2611 forms a stamping groove 5 at the splice.

[0076] In other embodiments, the base 2062 has a pressing protrusion 2611 at the joint of the first stamping part 421 and the second stamping part 431. The pressing member 2061 presses down on the slider 2642, driving the slider 2642 to move down to abut against the joint of the first stamping part 421 and the second stamping part 431. The pressing member 2061 continues to press down until the pressing protrusion 2611 on the slider 2642 forms a stamping groove 5 at the joint.

[0077] Please see Figure 9 and Figure 10 As shown, in this embodiment, the rivet 2061, the slider 2642 and the two bases 2062 are provided with two pressing protrusions 2611 at the position where the first stamping part 421 and the second stamping part 431 are spliced.

[0078] On the side near the notch 113, the rivet 2061 presses down to abut against the joint of the first stamping part 421 and the second stamping part 431 on the same side. The rivet 2061 continues to press down, causing the two abutting protrusions 2611 on the rivet 2061 to form two stamping grooves 5 at the joint on the upper surface, and the two abutting protrusions 2611 on the base 2062 to form two stamping grooves 5 at the joint on the lower surface. Each stamping groove 5 is located on the joint edge 4211, making the first stamping part 421 and the second stamping part 431 fit more tightly at the joint, thereby increasing the strength of the connection.

[0079] On the other side away from the notch 113, the slider 2642 is pressed down by the rivet 2061, driving the slider 2642 to move down to abut against the joint of the first stamping part 421 and the second stamping part 431. The rivet 2061 continues to press down until the two abutting protrusions 2611 on the upper surface of the slider 2642 form two stamping grooves 5, and the two abutting protrusions 2611 on the base 2062 form two stamping grooves 5 at the joint of the lower surface. Each stamping groove 5 is located on the joint edge 4211. Preferably, the length of the stamping groove 5 is the same as the length of the joint edge 4211 or the length of the stamping groove 5 is slightly greater than the length of the joint edge 4211, so that the stamping groove 5 can cover the joint edge 4211.

[0080] The first stamping part 421 and the second stamping part 431 are spliced ​​and riveted by the riveting assembly 206, and a stamping groove 5 is formed at the splicing point, so that the first stamping part 421 and the second stamping part 431 can be firmly spliced ​​without welding. Compared with traditional manual welding, the riveting assembly 206 can complete the fixed connection of the first connecting arm 42 and the second connecting arm 43 during on-line assembly production, which greatly improves production efficiency and reduces production costs, eliminating the need for manual welding.

[0081] Please see Figure 8 , Figure 12 , Figure 13 and Figure 14 As shown, further, when the pressing member 2061 presses down on the first connecting arm 42 and the second connecting arm 43, the pressing protrusion 2611 presses out a stamping groove 5 at the joint of the first stamping part 421 and the second stamping part 431, which will cause the joint to bulge. To improve this phenomenon, the pressing assembly 206 is provided with limiting members 2063 on both sides of the length direction corresponding to the joint position of the first stamping part 421 and the second stamping part 431. The limiting members 2063 are provided on both sides of the base 2062. By pressing the first connecting arm 42 and the second connecting arm 43 on both sides of the width direction, the limiting members 2063 prevent the joint of the first connecting arm 42 and the second connecting arm 43 from deforming under the action of external force, so that the limiting members 2063 limit the width of the first connecting arm 42 and the second connecting arm 43 in the width direction.

[0082] The cutting assembly 209 is disposed in the upper mold base 201 and located above the discharge port 208. The feeding assembly 203 feeds the sheet 303 on the material belt 300 to the cutting assembly 209, and the cutting assembly 209 cuts off the connection between the mounting bracket 100 and the material belt 300, causing the mounting bracket 100 to fall into the discharge port 208.

[0083] Please see Figures 4 to 17As shown, the manufacturing method of the mounting bracket 100 is described below. The mounting bracket 100 is manufactured by a continuous stamping process, and the mounting bracket 100 is manufactured through the following steps:

[0084] First step: Set the material strip 300 onto the feeding assembly 203.

[0085] The second process is as follows: the feeding assembly 203 transports the sheet metal 303 on the material belt 300 to the stamping assembly 204, and the stamping assembly 204 stamps the sheet metal 303 into a flat bracket 301, and stamps a first stamping part 421 on the first connecting arm 42 of the flat bracket 301, and stamps a second stamping part 431 on the second connecting arm 43 of the flat bracket 301.

[0086] The third process: the feeding component 203 transports the sheet metal 303 to the forming component 205, and the forming component 205 bends the flat support 301 into a Z-shaped support 302, and sets the first stamping part 421 and the second stamping part 431 into a stacked state.

[0087] Fourth step: The feeding assembly 203 transports the sheet metal 303 to the riveting assembly 206, and the riveting assembly 206 rivets the first stamping part 421 and the second stamping part 431 to the same horizontal plane; and the pressing protrusion 2611 on the riveting assembly 206 forms a stamping groove 5 at the joint of the first stamping part 421 and the second stamping part 431.

[0088] Fifth step: The feeding component 203 transports the sheet 303 on the material belt 300 to the cutting component 209, and the cutting component 209 cuts the connection between the mounting bracket 100 and the material belt 300, so that the mounting bracket 100 is unloaded.

[0089] Preferably, in this embodiment, a rest step can be added to any of the above processes to allow sufficient space and time for adjustment between the various working components (such as the feeding assembly 203, the stamping assembly 204, the forming assembly 205, the riveting assembly 206, and the cutting assembly 209, etc.), thereby avoiding damage or failure caused by mutual interference between the working components.

[0090] The manufacturing process of mounting bracket 100 is as follows:

[0091] First, the strip 300 is fed into the feeding assembly 203 from the feed inlet 207, and then conveyed by the feeding assembly 203 to the next processing station. Next, the stamping assembly 204 punches, shapes, and cuts the sheet metal 303 on the strip 300 to form a planar support 301 with a first connecting arm 42 and a second connecting arm 43. Punching is performed on the first connecting arm 42 and the second connecting arm 43 to form a first stamped portion 421 and a second stamped portion 431, as shown below. Figure 15As shown. Next, the feeding assembly 203 conveys the sheet metal 303 to the third process, where the forming assembly 205 bends the flat support 301 into a Z-shaped support 302, and the first stamping part 421 and the second stamping part 431 are stacked, as shown. Figure 16 As shown. In the fourth process, the first stamping part 421 and the second stamping part 431 are riveted together by the riveting assembly 206, so that they are spliced ​​on the same horizontal plane. Then, the feeding assembly 203 conveys the sheet metal 303 to the next station, and rivets the first stamping part 421 and the second stamping part 431. A stamping groove 5 is formed at the splice of the first stamping part 421 and the second stamping part 431 by the pressing protrusion 2611, as shown. Figure 17 As shown. Riveting process: The first connecting arm 42 and the second connecting arm 43 are placed on the base 2062. One of the pressing parts 2061 passes through the notch 113 and presses against the first connecting arm 42 and the second connecting arm 43 on the side near the notch 113, so that they are spliced ​​on the same horizontal plane. The other pressing part 2061 presses down the slider 2642, driving the slider 2642 to move down to abut against the first connecting arm 42 and the second connecting arm 43 on the side away from the notch 113. The slider 2642 presses against the first connecting arm 42 and the second connecting arm 43, so that they are spliced ​​on the same horizontal plane. Pressing process: On the side near the notch 113, the pressing part 2061 presses down to abut against the splicing point of the first stamping part 421 and the second stamping part 431 on the same side. The pressing member 2061 continues to press down, causing the two pressing protrusions 2611 on the pressing member 2061 to form two stamped grooves 5 at the joint on the upper surface. At the same time, the two pressing protrusions 2611 on the base 2062 form two stamped grooves 5 at the joint on the lower surface. On the other side away from the notch 113, another pressing member 2061 presses down the slider 2642, driving the slider 2642 to move down to abut against the joint of the first stamping part 421 and the second stamping part 431. The pressing member 2061 continues to press down until the two pressing protrusions 2611 on the slider 2642 form two stamped grooves 5 at the joint on the upper surface, and at the same time, the two pressing protrusions 2611 on the base 2062 form two stamped grooves 5 at the joint on the lower surface.

[0092] In summary, the mounting bracket 100 of the present invention is fixedly spliced ​​by the first stamping part 421 and the second stamping part 431, thereby fixing the first connecting arm 42 and the second connecting arm 43 together and increasing the connection strength of the mounting bracket 100. The splicing design of the protrusion and groove makes the first connecting arm 42 and the second connecting arm 43 flat at the connection point, without any protruding parts, improving the overall aesthetics of the product. In addition, by fixing and splicing with protrusions and grooves, the first connecting arm 42 and the second connecting arm 43 can be fixedly connected without welding, simplifying the process and reducing production costs.

[0093] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A mounting bracket, formed by stamping from a sheet metal (303), characterized in that, include: A substrate (1) is stamped to form a mounting portion (11) for mounting a lamp. The substrate (1) has a first side plate (2) and a second side plate (3) on its two sides. A first connecting arm (42) is stamped on the first side plate (2), and a first stamped portion (421) is stamped at the end of the first connecting arm (42) near the second side plate (3). A second connecting arm (43) is stamped on the second side plate (3), and a second stamped portion (431) is stamped at the end of the second connecting arm (43) near the first side plate (2). One of the first stamping part (421) and the second stamping part (431) is a protrusion, and the other is a groove that is spliced ​​with the protrusion. The first connecting arm (42) and the second connecting arm (43) extend towards each other and are fixedly spliced ​​through the protrusion and the groove.

2. The mounting bracket according to claim 1, characterized in that, The extension direction of the protrusion and the recess direction of the groove are the same as the length extension direction of the first connecting arm (42) / second connecting arm (43). The protrusion and the groove are matched or interference-fitted on the same horizontal plane.

3. The mounting bracket according to claim 2, characterized in that, The protrusion is a bump, and the shape of the groove matches the protrusion, and / or, The protrusion is a plurality of toothed protrusions, and the groove is a plurality of toothed grooves that match the plurality of toothed protrusions. The plurality of toothed protrusions and the plurality of toothed grooves are respectively engaged and connected in a one-to-one correspondence.

4. The mounting bracket according to any one of claims 1 to 3, characterized in that, A stamping groove (5) is provided at the joint of the first stamping part (421) and the second stamping part (431). The stamping groove (5) at least partially covers the first stamping part (421) and at least partially covers the second stamping part (431).

5. The mounting bracket according to claim 4, characterized in that, The first stamping part (421) and the second stamping part (431) include a lower surface facing the substrate (1) and an upper surface opposite to the lower surface, and the stamping groove (5) is provided on both the upper surface and / or the lower surface.

6. An in-mold forming apparatus for integrally stamping sheet metal (303) into a mounting bracket (100) as described in any one of claims 1 to 5, characterized in that, The in-mold forming device (200) includes: a stamping assembly (204), a forming assembly (205), and a riveting assembly (206); The stamping assembly (204) is configured to stamp the sheet metal (303) into a planar support (301), the planar support (301) including a first connecting arm (42) and a second connecting arm (43) that are not connected. The stamping assembly (204) stamps a first stamped part (421) on the first connecting arm (42) and stamps a second stamped part (431) on the second connecting arm (43). The forming component (205) is configured to bend the planar support (301) into a zigzag support (302), and the first stamping part (421) and the second stamping part (431) are stacked. The riveting assembly (206) is configured to rivet the first stamping part (421) and the second stamping part (431) together on the same horizontal plane.

7. The in-mold forming apparatus according to claim 6, characterized in that, The riveting assembly (206) includes a riveting member (2061) and a base (2062). The riveting member (2061) and / or the base (2062) are provided with a pressing protrusion (2611) at the splice of the first stamping part (421) and the second stamping part (431). The pressing protrusion (2611) is configured to form a stamping groove (5) at the splice.

8. The in-mold forming apparatus according to claim 7, characterized in that, The first connecting arm (42) and the second connecting arm (43) have a length direction and a width direction. The riveting assembly (206) has limiting members (2063) on both sides of the splice in the length direction. The limiting members (2063) are configured to limit the width of the first connecting arm (42) and the second connecting arm (43) in the width direction.

9. A stamping forming method for a mounting bracket, characterized in that, The mounting bracket (100) as described in any one of claims 1 to 5 is formed by stamping a sheet metal (303) using an in-mold forming apparatus (200) as described in any one of claims 6 to 8. The stamping forming method of the mounting bracket (100) includes the following steps: A strip (300) is placed on a feeding assembly (203), the strip (300) comprising a plurality of sets of plates (303); The feeding assembly (203) transports the sheet metal (303) to the stamping assembly (204), and the stamping assembly (204) stamps the sheet metal (303) into a flat support (301), and stamps a first stamped part (421) on the first connecting arm (42) of the flat support (301), and stamps a second stamped part (431) on the second connecting arm (43) of the flat support (301); The feeding assembly (203) transports the sheet metal (303) to the forming assembly (205), and the forming assembly (205) bends the flat support (301) into a Z-shaped support (302), and sets the first stamping part (421) and the second stamping part (431) in a stacked manner; The feeding assembly (203) transports the sheet metal (303) to the riveting assembly (206), and the riveting assembly (206) rivets the first stamping part (421) and the second stamping part (431) together on the same horizontal plane.

10. The stamping forming method of the mounting bracket according to claim 9, characterized in that, The riveting assembly (206) has a pressing protrusion (2611) at the joint of the first stamping part (421) and the second stamping part (431), and the pressing protrusion (2611) forms a stamping groove (5) at the joint of the first stamping part (421) and the second stamping part (431).

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