A lighting fixture stamping die

Abstract

The present application relates to the technical field of stamping die, and particularly discloses a lighting lamp stamping die, which comprises a rack, a mounting plate is slidably connected to the rack through a power element, and a stamping part for stamping operation is arranged on the mounting plate; a clamping element for fixing a workpiece is arranged on the rack, and a pressing mechanism is arranged between the mounting plate and the clamping element, so that the clamping element can clamp the workpiece during the downward sliding stroke of the mounting plate driven by the power element. When the power element drives the mounting plate to downward stamp, the clamping element is synchronously driven to complete automatic clamping of the workpiece, thereby solving the problems of the existing lamp stamping die clamping mechanism, such as fixed type, inability to adaptively adjust with the stamping deformation of the workpiece, workpiece loosening, large stamping size error and the like, realizing precise linkage of the clamping action and the stamping stroke, ensuring stable fixation of the workpiece in the whole stamping process, and effectively improving the stamping forming precision of the lamp workpiece such as a lampshade.

Description

Technical Field

[0001] This invention relates to the field of stamping die technology, specifically to a stamping die for lighting fixtures. Background Technology

[0002] As a key appearance and functional component of lighting products, the manufacturing quality of lampshades directly determines the aesthetics, structural stability, and safety of the lighting fixtures. They are widely used in various scenarios such as home lighting, industrial lighting, and outdoor lighting, and the market demand is huge. With the rapid development of the lighting industry and the upgrading of consumption, the market has put forward higher requirements for the appearance precision, dimensional consistency, molding efficiency, and production cost of lampshades.

[0003] Currently, mass production of lampshades mainly relies on stamping forming process. This process has become the core processing method in the lampshade manufacturing field due to its advantages such as high production efficiency, low processing cost, stable forming quality, and suitability for large-scale mass production. As the core equipment of the stamping process, the rationality of the structural design, forming accuracy, and stability of use of the stamping die directly affect the quality and production efficiency of the lampshade products, and is a key factor in determining the level of lampshade manufacturing.

[0004] Among them, single-operation molds require multiple sets of molds to complete each stamping process. During the production process, the sheet metal needs to be frequently positioned, transferred and clamped, which not only increases the equipment occupancy and labor costs, but also easily leads to cumulative errors due to multiple positioning, resulting in defects such as insufficient dimensional accuracy of lampshade products, excessive edge burrs, scratches or wrinkles on the surface, which seriously affects the consistency of product quality. In the prior art, for example, Chinese Patent No. CN119748728A, entitled "A Stamping Equipment for Lamp Core Shells of Lighting Fixtures," discloses a stamping equipment for lamp core shells of lighting fixtures, comprising: a fixed base plate, with multiple mounting plates fixedly connected to the top of the fixed base plate, stamping dies mounted on the inner sides of the multiple mounting plates, a fixed bracket fixedly connected to the top of the fixed base plate, a stamping device fixedly connected to the upper end of the fixed bracket, a stamping rod fixedly connected to the output end of the stamping device, and a stamping plate connected to the end of the stamping rod; and an adjusting structure, including a stamping base plate slidably connected inside a sliding block, with a fixed rod fixedly connected to the bottom end of the stamping base plate. Another example is Patent No. CN121467565B, entitled "A Stamping Device for the Production of Lighting Fixtures," which discloses a stamping device for the production of lighting fixtures, belonging to the field of stamping equipment technology. It mainly addresses the problem of low efficiency in existing single-station production and proposes the following technical solution, including a stamping equipment, which includes an equipment frame and a power unit mounted on the equipment frame. The output end of the power unit is equipped with a loading plate.

[0005] Existing technologies, including the aforementioned patents, can meet the needs of lamp manufacturing to a certain extent. However, it is known that workpieces typically need to be fixed during the stamping process to provide stability and improve stamping quality. However, workpieces can deform during stamping, and existing workpiece fixing mechanisms are fixed structures. Therefore, when a workpiece deforms under stamping pressure, the fixing structure does not change position with the workpiece, leading to workpiece loosening and affecting stamping quality. Summary of the Invention

[0006] The purpose of this invention is to provide a stamping die for lighting fixtures to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a stamping die for lighting fixtures, comprising a frame, wherein a mounting plate is slidably connected to the frame via a power component, and a stamping part for stamping operations is provided on the mounting plate; a clamping component for fixing workpieces is provided on the frame, and a pressure applying mechanism is provided between the mounting plate and the clamping component, wherein during the stroke in which the power component drives the mounting plate to slide downwards, the pressure applying mechanism drives the clamping component to perform clamping operations on the workpiece.

[0008] Furthermore, the clamping member includes two clamping plates slidably connected to the frame, and a bidirectional lead screw is rotatably connected to the frame. Each clamping plate is threadedly connected to the bidirectional lead screw via a connecting frame.

[0009] Furthermore, the pressure applying mechanism includes a connecting block fixedly connected to the bearing plate, and a pressure applying rod fixedly connected to the bottom of the connecting block; a straight rack is slidably connected to the frame, and a force receiving block is fixedly connected to the rack, with the pressure applying rod abutting against the force receiving block; an intermittent gear is installed on the bidirectional lead screw, and the straight rack meshes with the intermittent gear.

[0010] Furthermore, a lifting part is vertically slidably connected to the frame, and the lifting part is connected to a bidirectional lead screw drive via a transmission unit.

[0011] Furthermore, the lifting part includes fixing multiple lifting rods, which are connected by a lifting frame.

[0012] Furthermore, the transmission unit includes a long rack fixedly connected to the lifting frame, and a connecting rod rotatably connected in the middle of the bidirectional lead screw. A spur gear is installed on the connecting rod, and the spur gear intermittently meshes with the long rack. The connecting rod and the bidirectional lead screw are connected by a unidirectional transmission component.

[0013] Furthermore, the unidirectional transmission component includes a wedge-shaped rod slidably connected to the connecting rod, a pressure spring is provided between the wedge-shaped rod and the connecting rod, and a wedge-shaped groove is provided inside the bidirectional lead screw, the elastic force of the pressure spring drives the wedge-shaped rod to be inserted into the wedge-shaped groove.

[0014] Furthermore, the power component includes a servo cylinder, which is mounted on the frame and its output end is connected to the support plate.

[0015] Furthermore, multiple return springs are provided between the lifting frame and the machine frame.

[0016] Furthermore, multiple limiting components are provided between the frame and the support plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The lighting fixture stamping die, by setting a clamping component and a pressure mechanism on the frame, enables the clamping component to automatically clamp the workpiece simultaneously when the power component drives the mounting plate to move downward for stamping. This solves the problems of the existing lighting fixture stamping die's fixed clamping mechanism, which cannot adaptively adjust with the workpiece's stamping deformation, resulting in workpiece loosening, large stamping dimensional errors, excessive edge burrs, and surface defects. It achieves precise linkage between the clamping action and the stamping stroke, ensuring that the workpiece is stably fixed throughout the stamping process. This effectively improves the stamping forming accuracy, dimensional consistency, and surface quality of lamp covers and other lighting fixture workpieces, and meets the needs of efficient and stable batch stamping production of lighting fixtures. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 A front view provided for an embodiment of the present invention; Figure 3 This is a schematic diagram of the rack concealed state structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the rack in a concealed state, provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the linkage mechanism between the clamping member and the lifting part provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of another perspective of the linkage mechanism between the clamping member and the lifting part provided in an embodiment of the present invention; Figure 7This is a schematic diagram of the transmission unit structure provided in an embodiment of the present invention; Figure 8 This is a partial structural diagram of the pressure applying mechanism provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the lifting part structure provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of a unidirectional transmission component provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Bearing plate; 3. Servo cylinder; 4. Mounting plate; 5. Limiting component; 6. Clamping component; 61. Clamping plate; 62. Connecting frame; 63. Two-way lead screw; 7. Lifting part; 71. Lifting frame; 72. Lifting rod; 73. Return spring; 8. Pressing mechanism; 81. Connecting block; 82. Pressing rod; 83. Force-bearing block; 84. Spur rack; 85. Spur gear; 86. Connecting rod; 9. Transmission unit; 91. Long rack; 92. Intermittent gear; 10. One-way transmission component; 101. Wedge rod; 102. Pressing spring; 103. Wedge groove. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-10 The present invention provides a technical solution: a stamping die for lighting fixtures, including a frame 1, a mounting plate 4 slidably connected to the frame 1 via a power component, the mounting plate 4 being provided with a stamping part for stamping operations; a clamping member 6 for fixing workpieces is provided on the frame 1, and a pressure applying mechanism 8 is provided between the mounting plate 4 and the clamping member 6, wherein when the power component drives the mounting plate 4 to slide downwards, the pressure applying mechanism 8 drives the clamping member 6 to perform clamping operations on the workpiece.

[0023] Specifically, in this lighting fixture stamping die, a servo cylinder 3 drives a mounting plate 4 to slide on a frame 1. The stamping section completes the stamping of the lampshade. A clamping component 6 is installed on the frame 1 to fix the workpiece. A pressure applying mechanism 8 connects the mounting plate 4 and the clamping component 6. When the mounting plate 4 moves downwards for stamping, the pressure applying mechanism 8 drives the clamping component 6 to automatically clamp the workpiece. The effect of this method is that clamping and stamping are synchronized, preventing the workpiece from loosening and improving stamping accuracy.

[0024] In the embodiments provided by this invention, the clamping member 6 includes two clamping plates 61 slidably connected to the frame 1, and a bidirectional lead screw 63 is rotatably connected to the frame 1. Each clamping plate 61 is threadedly connected to the bidirectional lead screw 63 via a connecting frame 62. The two clamping plates 61 are slidably mounted on the frame 1, and the bidirectional lead screw 63 is rotatably mounted. The clamping plates 61 are threadedly connected to the bidirectional lead screw 63 via the connecting frame 62. The rotation of the bidirectional lead screw 63 drives the two clamping plates 61 to move synchronously towards or away from each other. The effect of this method is that the clamping is symmetrical and uniform, the workpiece is subjected to stable force, and it is not easily deformed.

[0025] In the embodiments provided by this invention, the pressure applying mechanism 8 includes a connecting block 81 fixedly connected to the bearing plate 2, and a pressure applying rod 82 fixedly connected to the bottom of the connecting block 81; a rack 84 is slidably connected to the frame 1, and a force-bearing block 83 is fixedly connected to the rack, with the pressure applying rod 82 abutting against the force-bearing block 83; an intermittent gear 92 is mounted on the bidirectional lead screw 63, and the rack 84 meshes with the intermittent gear 92. The connecting block 81 and the pressure applying rod 82 are fixed to the bearing plate 2, the force-bearing block 83 is fixedly connected to and slidably installed with the rack 84, and the intermittent gear 92 is mounted on the bidirectional lead screw 63 and meshes with the rack 84; when the bearing plate 2 moves downward, the pressure applying rod 82 presses the force-bearing block 83 and the rack 84, driving the intermittent gear 92 and the bidirectional lead screw 63 to rotate, thereby achieving clamping. The advantage of this method is that it is purely mechanical linkage, requires no electrical control, has a fast response, and high reliability.

[0026] In the embodiment provided by this invention, a lifting part 7 is vertically slidably connected to the frame 1, and the lifting part 7 is connected to the bidirectional lead screw 63 via a transmission unit 9. The lifting part 7 is vertically slidably mounted on the frame 1 and is linked to the bidirectional lead screw 63 via the transmission unit 9; the rotation of the bidirectional lead screw 63 drives the lifting part 7 to rise and fall via the transmission unit 9. The advantage of this method is that the workpiece is automatically ejected after stamping, eliminating the need for manual removal and improving efficiency.

[0027] In the embodiments provided by the present invention, the lifting part 7 includes a plurality of fixed lifting rods 72, which are connected by a lifting frame 71. The plurality of lifting rods 72 are fixed on the lifting frame 71; the lifting frame 71 rises, causing the lifting rods 72 to push out the lampshade workpiece. The effect of this method is that the ejection is smooth and avoids damage to the surface of the workpiece.

[0028] In the embodiments provided by this invention, the transmission unit 9 includes a long rack 91 fixedly connected to the lifting frame 71, and a connecting rod 86 rotatably connected to the middle of the bidirectional lead screw 63. A spur gear 85 is mounted on the connecting rod 86, and the spur gear 85 intermittently meshes with the long rack 91. The connecting rod 86 and the bidirectional lead screw 63 are connected by a one-way transmission member 10. The long rack 91 is fixed on the lifting frame 71, the connecting rod 86 is rotatably mounted in the middle of the bidirectional lead screw 63, the spur gear 85 is mounted on the connecting rod 86 and intermittently meshes with the long rack 91, and the one-way transmission member 10 connects the bidirectional lead screw 63 and the connecting rod 86. When the bidirectional lead screw 63 rotates in one direction, it drives the connecting rod 86 and the spur gear 85 through the one-way transmission member 10, driving the long rack 91 and the lifting frame 71 to rise. The effect of this method is to achieve sequential actions of clamping and ejection without interference.

[0029] In the embodiments provided by this invention, the unidirectional transmission component 10 includes a wedge-shaped rod 101 slidably connected to the connecting rod 86. A pressure spring 102 is provided between the wedge-shaped rod 101 and the connecting rod 86. A wedge-shaped groove 103 is formed inside the bidirectional lead screw 63. The elastic force of the pressure spring 102 drives the wedge-shaped rod 101 to insert into the wedge-shaped groove 103. The wedge-shaped rod 101 is slidably mounted on the connecting rod 86, and the pressure spring 102 pushes the wedge-shaped rod 101 into the wedge-shaped groove 103 of the bidirectional lead screw 63. When the bidirectional lead screw 63 rotates in the forward direction, the wedge-shaped engagement drives the connecting rod 86 to rotate; when it rotates in the reverse direction, it disengages. The advantage of this method is that it achieves unidirectional power transmission, has a simple structure, and provides reliable transmission.

[0030] In the embodiments provided by this invention, the power component includes a servo cylinder 3, which is mounted on the frame 1, and its output end is connected to the support plate 2. The servo cylinder 3 is fixed to the frame 1, and its output end is connected to the support plate 2; the servo cylinder 3 extends and retracts to drive the support plate 2 and the mounting plate 4 to rise and fall. The advantage of this method is that it provides a large driving force, controllable stroke, and stable stamping.

[0031] In the embodiments provided by this invention, a plurality of return springs 73 are provided between the lifting frame 71 and the frame 1. The return springs 73 connect the lifting frame 71 and the frame 1; the return springs 73 drive the lifting frame 71 to move downward and reset. The effect of this method is that it automatically returns to its original position after being ejected, ready for the next stamping.

[0032] In the embodiments provided by this invention, a plurality of limiting members 5 are provided between the frame 1 and the support plate 2. The limiting members 5 are installed between the frame 1 and the support plate 2 to limit the sliding direction and stroke of the support plate 2. The effect of this method is to avoid stamping deviation and improve the stability and service life of the mold.

[0033] Working principle: Servo cylinder 3 acts as the power component to drive the vertical lifting and lowering of the support plate 2 and mounting plate 4, thereby driving the stamping section to complete the stamping and forming of the lighting fixture workpiece. In the initial stage of the downward stamping of the mounting plate 4, the connecting block 81 fixed on the support plate 2 and the pressure rod 82 simultaneously press down on the force block 83, pushing the rack 84 to slide along the frame 1. The rack 84 meshes with the intermittent gear 92 on the double-sided lead screw 63, causing the double-sided lead screw 63 to rotate. This causes the two clamping plates 61 to move synchronously towards each other under the threaded engagement of the connecting frame 62 and the double-sided lead screw 63, automatically completing the clamping and fixing of the workpiece. The clamping force is applied synchronously with the stamping stroke, ensuring that the workpiece is stably clamped during the stamping deformation process, avoiding loosening that could lead to dimensional errors and surface defects. After stamping is completed, servo cylinder 3 drives the support plate 2 and mounting plate 4 to move upward and reset. Under the reset action, the double-sided lead screw 63 rotates in the opposite direction, driving the clamping plates to rotate upward and reset. Plate 61 releases the workpiece, and at the same time, the bidirectional lead screw 63 drives the connecting rod 86 to rotate through the unidirectional transmission component 10. The wedge rod 101 is engaged in the wedge groove 103 of the bidirectional lead screw 63 under the action of the pressure spring 102, realizing unidirectional power transmission. The spur gear 85 on the connecting rod 86 meshes with the long rack 91 on the lifting frame 71, driving the lifting frame 71 and the lifting rod 72 to move upward, smoothly ejecting the stamped lamp workpiece for easy removal. After ejection, the reset spring 73 pulls the lifting frame 71 downward to reset, preparing for the next stamping. The limiting component 5 between the frame 1 and the bearing plate 2 restricts the stamping stroke and movement direction to ensure stamping accuracy. The whole system achieves integrated operation of automatic clamping, automatic stamping, and automatic ejection through pure mechanical linkage of stamping stroke, clamping, and ejection actions, without the need for independent electrical control and manual operation, making it suitable for efficient batch stamping production of lamp workpieces.

[0034] It should be noted that all electrical equipment involved in this application can be powered by a storage battery or an external power source, and this application is equipped with a control system for controlling the operation of the entire equipment.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping die for lighting fixtures, comprising a frame (1), wherein a mounting plate (4) is slidably connected to the frame (1) via a power component, and a stamping part for stamping operations is provided on the mounting plate (4), characterized in that: The frame (1) is provided with a clamping member (6) for fixing the workpiece, and a pressure applying mechanism (8) is provided between the mounting plate (4) and the clamping member (6). During the downward sliding stroke of the power component driving the mounting plate (4), the clamping component (6) is driven by the pressure mechanism (8) to perform clamping operations on the workpiece.

2. The lighting fixture stamping die according to claim 1, characterized in that: The clamping member (6) includes two clamping plates (61) slidably connected to the frame (1), and a bidirectional lead screw (63) is rotatably connected to the frame (1). Each clamping plate (61) is threadedly connected to the bidirectional lead screw (63) through a connecting frame (62).

3. The stamping die for lighting fixtures according to claim 2, characterized in that: The pressure application mechanism (8) includes a connecting block (81) fixedly connected to the bearing plate (2), and a pressure rod (82) is fixedly connected to the bottom of the connecting block (81). A rack (84) is slidably connected to the frame (1), and a force-bearing block (83) is fixedly connected to the rack. The pressure rod (82) abuts against the force-bearing block (83). An intermittent gear (92) is installed on the bidirectional lead screw (63), and the rack (84) meshes with the intermittent gear (92).

4. A stamping die for lighting fixtures according to claim 3, characterized in that: The frame (1) is vertically slidably connected to a lifting part (7), which is connected to a bidirectional lead screw (63) via a transmission unit (9).

5. A stamping die for lighting fixtures according to claim 4, characterized in that: The lifting part (7) includes a plurality of fixed lifting rods (72), which are connected by a lifting frame (71).

6. A stamping die for lighting fixtures according to claim 5, characterized in that: The transmission unit (9) includes a long rack (91) fixedly connected to the lifting frame (71), and a connecting rod (86) rotatably connected in the middle of the double-acting screw (63). A spur gear (85) is installed on the connecting rod (86), and the spur gear (85) meshes intermittently with the long rack (91). The connecting rod (86) and the bidirectional lead screw (63) are connected by a one-way transmission component (10).

7. A stamping die for lighting fixtures according to claim 6, characterized in that: The unidirectional transmission component (10) includes a wedge rod (101) slidably connected to the connecting rod (86). A pressure spring (102) is provided between the wedge rod (101) and the connecting rod (86). A wedge groove (103) is provided inside the bidirectional lead screw (63). The elastic force of the pressure spring (102) drives the wedge rod (101) to be inserted into the wedge groove (103).

8. A stamping die for lighting fixtures according to claim 1, characterized in that: The power component includes a servo cylinder (3), which is mounted on the frame (1) and the output end of the servo cylinder (3) is connected to the support plate (2).

9. A stamping die for lighting fixtures according to claim 5, characterized in that: Multiple return springs (73) are provided between the lifting frame (71) and the frame (1).

10. A stamping die for lighting fixtures according to claim 1, characterized in that: Multiple limiting components (5) are provided between the frame (1) and the bearing plate (2).

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