Lamp base plate riveting mechanism

Abstract

The present application proposes a lamp substrate riveting mechanism, comprising a downward pressing driving member, a pressing head assembly and a clamping jaw assembly; the pressing head assembly is driven by the downward pressing driving member to press the lamp substrate downward or upward away from the lamp substrate along the axis of the pressing head assembly; the clamping jaw assembly comprises a plurality of clamping jaws and a clamping jaw driving device, the plurality of clamping jaws are arranged on the pressing head assembly around the axis of the pressing head assembly, and before the pressing head assembly presses the lamp substrate, the plurality of clamping jaws are driven by the clamping jaw driving device to clamp the lamp substrate inward and release the lamp substrate outward. On the one hand, the present application avoids the use of a visual camera positioning system to assist in positioning, thereby reducing manufacturing costs; on the other hand, the plurality of clamping jaws of the present application are arranged on the pressing head assembly, and the processes of adjusting the position of the lamp substrate and riveting the lamp substrate can be realized at the same workstation, thereby improving the assembly efficiency of the lamp substrate.

Description

Technical Field

[0001] The invention relates to the field of bulb lamp assembly equipment, and in particular to a lamp baseboard riveting mechanism. Background Art

[0002] The bulb lamp is one of the LED lamps, which generally includes a heat sink, a light-transmitting lampshade and a lamp base. The lamp base is arranged in the port of the heat sink for the installation of the light source and the arrangement of the circuit. The light-transmitting lampshade is arranged in the port of the heat sink, and the light emitted by the light source is emitted through the light-transmitting cover to achieve the purpose of lighting. During the assembly process of the bulb lamp, it is generally necessary to first rivet the lamp base into the port of the heat sink.

[0003] In the existing bulb lamp assembly technology, the lamp substrate needs to be placed on the heat sink first, and then the lamp substrate is riveted to the heat sink using a pressing mechanism. However, after the lamp substrate is placed on the heat sink, it is easy to have a slight position deviation, which leads to poor riveting effect of the lamp substrate in the subsequent riveting process. If the position deviation is large, the lamp substrate may even be crushed during riveting.

[0004] In order to solve the above defects, some manufacturers currently use a visual positioning camera system to assist in positioning the lamp substrate when placing the lamp substrate on the heat sink, so that the lamp substrate can be placed more accurately on the preset position of the heat sink. Although this can solve the problem of position deviation after the lamp substrate is placed on the heat sink to a certain extent, its manufacturing cost and maintenance cost are high. In addition, some manufacturers use an adjustment mechanism to move the lamp substrate, so as to correct the position of the lamp substrate so that the subsequent pressing mechanism can rivet the lamp substrate. Compared with the aforementioned solution using a visual positioning camera system to assist in positioning, this solution has a significantly lower manufacturing cost, but the adjustment mechanism is set separately from the pressing mechanism. It is necessary to first use the adjustment mechanism to adjust the lamp substrate, and then transport the lamp substrate to the bottom of the pressing mechanism, and the pressing mechanism will rivet the lamp substrate. In this way, in the process of transporting the lamp substrate from the adjustment mechanism to the pressing mechanism, more transportation time is generated, which is not conducive to improving the assembly efficiency of the lamp substrate.

[0005] Therefore, it is necessary to provide a technical solution for assembling a lamp substrate with high assembly efficiency and low manufacturing cost. Summary of the invention

[0006] The present invention provides a lamp substrate riveting mechanism, which has high assembly efficiency and low manufacturing cost.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A lamp substrate riveting mechanism comprises a pressing drive, a pressing head assembly and a clamping jaw assembly; the pressing head assembly is driven by the pressing drive to press the lamp substrate downward along the axis of the pressing head assembly or upward away from the lamp substrate; the clamping jaw assembly comprises a plurality of clamping jaws and a clamping jaw driving device, the plurality of clamping jaws are arranged on the pressing head assembly around the axis of the pressing head assembly, and before the pressing head assembly presses the lamp substrate, the plurality of clamping jaws are driven by the clamping jaw driving device to clamp the lamp substrate inward and release the lamp substrate outward.

[0009] In one embodiment, the pressure head assembly includes a pressure head structure, a clamping jaw support and an elastic member. The pressure head structure is arranged at the driving end of the downward pressing driving member to press the lamp substrate downward; the clamping jaw support is movably arranged on the pressure head structure up and down; the elastic member is arranged between the clamping jaw support and the pressure head structure, and after the clamping jaw support moves upward, the elastic force of the elastic member forces the clamping jaw support to move downward to restore to its original position; the multiple clamps are arranged on the clamping jaw support, and when not in working state, the lower ends of the multiple clamps are located below the substrate pressure head.

[0010] In one embodiment, the pressure head structure includes a substrate pressure head, the bottom end surface of the substrate pressure head is provided with a groove which is concave in the up and down directions, and the circumferential side wall of the groove is provided with a plurality of limiting notches whose lower ends pass downward through the lower end surface of the groove; the clamping jaw bracket includes a bracket body for mounting the plurality of clamping jaws; the bracket body is movably arranged in the groove, the plurality of clamping jaws are matched with the plurality of limiting notches one by one, and the plurality of clamping jaws are driven to move up and down along the plurality of limiting notches by the bracket body; when not in working state, the lower ends of the plurality of clamping jaws extend outward from the lower ends of the plurality of limiting notches to below the substrate pressure head.

[0011] In one embodiment, the bracket body includes a guide column protruding upward from the top surface of the bracket body; the substrate pressing head is provided with a guide hole located above the groove and connected to the groove, and the guide column can be inserted into the guide hole movably along its own axial direction; the elastic member is a linear spring sleeved on the guide column, and the two ends of the linear spring respectively abut the top side wall of the groove and the top surface of the bracket body.

[0012] In one embodiment, each of the multiple limiting notches includes a first portion, a second portion, and a third portion arranged in sequence from top to bottom; the bracket body includes a base and a plurality of mounting seats arranged on the periphery of the base along the axis of the base, and the plurality of mounting seats are assembled one by one and can be moved up and down in the second portion of the multiple limiting notches; the transverse cross-sectional area of ​​each of the mounting seats is larger than the area of ​​the lower port of the first portion and the area of ​​the upper port of the third portion.

[0013] In one embodiment, a plurality of mounting grooves are provided on the periphery of the base, and the plurality of mounting seats are correspondingly and detachably provided in the plurality of mounting grooves one by one.

[0014] In one embodiment, the middle portion of the jaw is hinged to the jaw bracket, and the outer side of the jaw includes an arc-shaped extension portion that gradually protrudes radially outward from the upper portion of the jaw to the middle portion of the jaw along the jaw bracket; the jaw driving device includes a ring mounted on the pressure head structure and a telescopic driving member for driving the ring to move up and down along the axis of the pressure head structure; a plurality of actuating members that abut against each of the arc-shaped extension portions are provided on the inner side of the ring, and the jaw is forced to rotate reciprocatingly by the process in which the actuating members are driven by the ring to slide up and down along the surface of the arc-shaped extension portion.

[0015] In one embodiment, the pressure head structure includes a base pressure head and a connecting seat, the base pressure head includes a vertically extending connecting column and a snap-on cap radially extending from the top of the connecting column; the bottom surface of the connecting seat is provided with an installation cavity which is concave in the up and down directions and has a contracted lower port; the circumferential side wall of the installation cavity is provided with an assembly notch for the connecting column and the snap-on cap to radially enter the installation cavity along the installation cavity, and after the snap-on cap enters the installation cavity, the bottom surface of the snap-on cap abuts against the bottom side wall on the inner side of the installation cavity.

[0016] In one embodiment, the pressure head structure further includes a pressure sensor, and the connecting seat is connected to the movable end of the pressing driving member through the pressure sensor, so that the thrust of the pressing driving member when pressing downward is detected by the pressure sensor.

[0017] In one embodiment, the clamp driving device further includes a first connecting member and a second connecting member; the telescopic driving member is connected to the pressure sensor via the first connecting member, and is connected to the connecting frame via the second connecting member.

[0018] The beneficial effects of the present invention are:

[0019] The present application drives the pressure head assembly to move downward by pressing the driving member, and squeezes the lamp substrate by the pressure head assembly, wherein before the pressure head assembly squeezes the lamp substrate, a plurality of clamps are first used to clamp the lamp substrate and then release the lamp substrate. If there is a deviation in the position of the lamp substrate, the plurality of clamps can push the lamp substrate in the process of clamping the lamp substrate, thereby correcting the position of the lamp substrate, making it easier for the subsequent pressure head assembly to squeeze the lamp substrate and rivet the lamp substrate onto the heat sink more accurately. Compared with the prior art, the present application avoids the use of a visual camera positioning system to assist in positioning, thereby reducing manufacturing costs. On the other hand, the plurality of clamps of the present application are arranged on the pressure head assembly, thereby improving the overall structural compactness of the lamp substrate riveting mechanism, and the processes of adjusting the position of the lamp substrate and riveting the lamp substrate can be realized at the same workstation, thereby avoiding the time required to transport the lamp substrate between the process of adjusting the position of the lamp substrate and the process of riveting the lamp substrate, thereby improving the assembly efficiency of the lamp substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but should not constitute a limitation of the present invention.

[0021] Figure 1 It is a structural schematic diagram of a lamp substrate riveting mechanism according to an embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a lamp substrate riveting mechanism according to an embodiment of the present invention;

[0023] Figure 3 A schematic structural diagram of a connecting socket according to an embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of a substrate pressing head according to an embodiment of the present invention;

[0025] Figure 5 It is a schematic diagram of the combined structure of the substrate pressing head, the clamping claw support and the actuating member according to an embodiment of the present invention;

[0026] Figure 6 It is a schematic structural diagram of a clamping claw support according to an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the structure of the actuating member according to an embodiment of the present invention.

[0028] Notes on the attached drawings:

[0029] 10. Press down the driving part;

[0030] 20. Press head assembly; 21. Pressure sensor; 22. Press head of substrate; 221. Connecting column; 222. Snap-on cap; 223. Limiting notch; 224. Groove; 225. Guide hole; 2231. Second part; 2232. Third part; 2233. First part; 23. Connecting seat; 231. Assembly notch; 24. Clamping jaw bracket; 241. Clamping jaw body; 2411. Mounting groove; 242. Guide column; 243. Mounting seat; 2431. Strip groove;

[0031] 31. Clamping jaw driving device; 311. Telescopic driving member; 312. Ring; 313. First connecting member; 314. Second connecting member; 315. Actuating member; 3151. Column portion; 3152. Hemispherical portion; 32. Clamping jaw; 321. Arc-shaped extension portion;

[0032] 40. Heat sink. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0034] This embodiment discloses a lamp base riveting mechanism, which is used to rivet the lamp base of the bulb lamp onto the heat sink 40 of the bulb lamp (please refer to Figure 2 ), preferably, the riveting process of this embodiment can be: squeezing the lamp substrate into the port of the heat sink 40 so that the lamp substrate and the inner cavity of the port of the heat sink 40 have an interference fit, thereby confining the lamp substrate in the inner cavity of the port of the heat sink 40, wherein the lamp substrate is preferably an aluminum substrate, which has good heat dissipation performance and is convenient for heat dissipation. In addition, the aluminum substrate has good electrical conductivity, which is convenient for arranging the working circuit thereon.

[0035] See also Figure 1 - Figure 2 In this embodiment, the lamp substrate riveting mechanism includes a pressing driving member 10, a pressing head assembly 20 and a clamping jaw assembly; the pressing head assembly 20 is driven by the pressing driving member 10 to press the lamp substrate downward along the axis of the pressing head assembly 20 or upward away from the lamp substrate; the clamping jaw assembly includes a plurality of clamping jaws 32 and a clamping jaw driving device 31, and the plurality of clamping jaws 32 are arranged on the pressing head assembly 20 around the axis of the pressing head assembly 20. Before the pressing head assembly 20 presses the lamp substrate, the clamping jaw driving device 31 drives the plurality of clamping jaws 32 to clamp the lamp substrate inward and release the lamp substrate outward.

[0036] In a feasible application scenario of the present embodiment, the heat sink 40 is fixed directly below the pressure head assembly 20 by a fixture (not shown in the figure). The fixture can be a cylinder clamp, an electric cylinder clamp or other fixture that can limit the heat sink 40. The axis of the pressure head assembly 20 coincides with the axis of the heat sink 40. The multiple jaws 32 of the present embodiment are arranged around the axis of the pressure head assembly 20. When working, the present embodiment drives the pressure head assembly 20 to move downward to a predetermined position and stay at the predetermined position by pressing the driving member 10, and then uses the jaw driving device 31 to drive the multiple jaws 32 to clamp the lamp substrate inward and then release the lamp substrate. Since the multiple jaws 32 are arranged around the axis of the pressure head assembly 20, if there is a deviation in the position of the lamp substrate, that is, the central axis of the lamp substrate does not coincide with the axis of the pressure head assembly 20, in this case, the multiple jaws 32 clamp the lamp. During the process of assembling the substrate, the lamp substrate can be pushed to correct the position of the lamp substrate so that the central axis of the lamp substrate coincides with the axis of the pressing head assembly 20, and then the central axis of the lamp substrate coincides with the axis of the heat sink 40. At this time, the pressing driving member 10 continues to move downward so as to rivet the lamp substrate onto the port of the heat sink 40. Through the aforementioned scheme, after the lamp substrate is riveted onto the port of the heat sink 40, the central axis of the lamp substrate and the axis of the heat sink 40 have a high degree of coincidence, and the deviation can be controlled within 0.1mm, and the position accuracy of the lamp substrate assembly is high.

[0037] Compared with the prior art, the present embodiment avoids using a visual camera positioning system to assist positioning, thereby reducing manufacturing costs. On the other hand, the plurality of clamps 32 of the present embodiment are provided on the pressure head assembly 20, thereby improving the overall structural compactness of the lamp substrate riveting mechanism, and the processes of adjusting the position of the lamp substrate and riveting the lamp substrate can be realized at the same station, thereby avoiding the time required for transporting the lamp substrate between the process of adjusting the position of the lamp substrate and the process of riveting the lamp substrate, thereby improving the lamp substrate assembly efficiency. In addition, the structure of the present embodiment is relatively compact, occupies less space, and is easy to manufacture, thereby reducing the manufacturing cost to a certain extent.

[0038] In this embodiment, the pressing head assembly 20 includes a pressing head structure, a clamping claw support 24 and an elastic member. The pressing head structure is arranged at the driving end of the pressing driving member 10 to press the lamp substrate downward; the clamping claw support 24 is arranged on the pressing head structure so as to be movable up and down; the elastic member is arranged between the clamping claw support 24 and the pressing head structure. After the clamping claw support 24 moves upward, the clamping claw support 24 is forced to move downward to restore the original position by the elastic force of the elastic member; a plurality of clamping claws 32 are arranged on the clamping claw support 24. When not in operation, the lower ends of the plurality of clamping claws 32 are located below the substrate pressing head 22. By adopting the above scheme, the plurality of clamping claws 32 can contact the lamp substrate before the pressing head structure. Therefore, when the plurality of clamping claws 32 clamp the lamp substrate, the lamp substrate and the pressing head structure are spaced apart, so as to avoid the pressing head structure hindering the movement of the lamp substrate and affecting the process of adjusting the position of the lamp substrate. In addition, after the multiple jaws 32 clamp and release the lamp substrate, the pressure head structure continues to move downward and squeeze the lamp substrate under the drive of the downward driving member 10. During this process, the multiple jaws 32 contact the lamp substrate before the pressure head structure, and the multiple jaws 32 are squeezed by the lamp substrate, so that the multiple jaws 32 and the jaw bracket 24 move upward relative to the pressure head structure until the pressure head structure abuts the top surface of the lamp substrate. The aforementioned scheme can avoid the multiple jaws 32 from interfering with the downward movement of the pressure head structure. In addition, the multiple jaws 32 can adaptively avoid according to the downward movement of the pressure head structure, thereby making the process of adjusting the lamp substrate and the process of riveting the lamp substrate more smoothly connected, making it convenient for the pressure head structure to rivet the lamp substrate.

[0039] Furthermore, when the clamp bracket 24 moves upward relative to the pressure head structure, the elastic part is squeezed and elastically deformed. In the process of the pressure head structure riveting the lamp substrate and moving upward, the elastic force of the elastic part can force the clamp bracket 24 to move downward and return to its original position, and then the clamp bracket 24 drives each clamp 32 to move downward and return to its original position. This embodiment can realize the automatic return of each clamp 32 to its original position through the aforementioned scheme.

[0040] In this embodiment, the pressure head structure includes a pressure sensor 21, a substrate pressure head 22 and a connecting seat 23. The pressure sensor 21 is arranged at the movable end of the downward driving member, and preferably, the downward driving member can be a servo electric cylinder. The top side of the connecting seat 23 is connected to the bottom side of the pressure sensor 21.

[0041] Please combine Figure 2 and Figure 3 The bottom surface of the connection seat 23 is provided with an installation cavity which is concave in the up-down direction and has a contracted lower port, and the circumferential side wall of the installation cavity is provided with an assembly notch 231. Figure 2 and Figure 4The substrate pressing head 22 includes a vertically extending connecting column 221 and a snap-on cap 222 radially extending from the top of the connecting column 221. Specifically, the connecting column 221 is arranged on the top surface of the substrate pressing head 22. During assembly, the connecting column 221 and the snap-on cap 222 enter the mounting cavity from the assembly notch 231 along the radial direction of the mounting cavity, which can simplify the assembly process of the substrate pressing head 22 and reduce the difficulty of assembling the substrate pressing head 22. After the snap-on cap 222 enters the mounting cavity, the bottom surface of the snap-on cap 222 abuts against the bottom side wall of the inner side of the mounting cavity. The bottom side wall of the inner side of the mounting cavity and the top side wall of the mounting cavity define the position of the snap-on cap 222 in the up-down direction, thereby defining the position of the substrate pressing head 22 in the up-down direction.

[0042] During operation, the lamp substrate can be squeezed by the lower end of the substrate pressing head 22, and the pressure sensor 21 is used to measure the thrust when the pressing driving member 10 is pressed downward. The thrust is the same as the resistance encountered by the substrate pressing head 22 when squeezing the lamp substrate. If the lamp substrate is not properly assembled, the pressure data measured by the pressure sensor 21 will be too small or too large. In this way, it is also possible to judge whether the lamp substrate is properly assembled based on the size of the resistance.

[0043] Please combine Figure 5 In this embodiment, the bottom end surface of the substrate pressing head 22 is provided with a groove 224 which is concave in the up-down direction, and the circumferential side wall of the groove 224 is provided with a plurality of limiting notches 223 which are downwardly penetrating the lower end surface of the groove 224. Figure 6 The clamping jaw bracket 24 includes a bracket body 241 for mounting a plurality of clamping jaws 32; the bracket body 241 is arranged in the groove 224 so as to be movable up and down, and the plurality of clamping jaws 32 are matched with the plurality of limiting notches 223 one by one, and the plurality of clamping jaws 32 are driven to move up and down along the plurality of limiting notches 223 by the bracket body 241. In the non-working state, the lower ends of the plurality of clamping jaws 32 extend from the lower ends of the plurality of limiting notches 223 to the bottom of the substrate pressing head 22. The bracket body 241 of this embodiment is located in the groove 224, and each clamping jaw 32 is located in each limiting notch 223 one by one. By this scheme, the structure of the lamp substrate riveting mechanism of this embodiment can be made more compact, smaller in size, and occupy less installation space. Further, each of the plurality of limiting notches 223 includes a first portion 2233, a second portion 2231, and a third portion 2232 arranged in sequence from top to bottom.

[0044] Please combine Figure 6In this embodiment, the bracket body 241 includes a guide column 242 protruding upward from the top surface of the bracket body 241. The substrate pressing head 22 is provided with a guide hole 225 located above the groove 224 and connected to the groove 224. The guide column 242 can be inserted into the guide hole 225 movably along its own axial direction. The guide hole 225 guides the guide column 242, so that the movement process of the bracket body 241 is smoother. The elastic member is a linear spring sleeved on the guide column 242, and the two ends of the linear spring respectively abut against the top side wall of the groove 224 and the top surface of the bracket body 241, so that when the bracket body 241 moves upward, the linear spring is compressed. In other embodiments, the elastic member can be a rubber block or a silicone block or other components with good elasticity arranged between the bracket body 241 and the top side wall of the groove 224.

[0045] The support body 241 also includes a base and a plurality of mounting seats 243 arranged on the periphery of the base along the axis of the base. A guide column 242 is arranged on the base. The plurality of mounting seats 243 are assembled one by one and can be moved up and down on the second part 2231 of the plurality of limiting notches 223. The transverse cross-sectional area of ​​each mounting seat 243 is larger than the area of ​​the lower port of the first part 2233 and the area of ​​the upper port of the third part 2232, so that the mounting seat 243 can be limited in the up and down directions. Since the mounting seat 243 is limited, the base connected to the mounting seat 243 is also limited. By this scheme, the support body 241 is limited in the up and down directions, thereby realizing the limitation of each clamping jaw 32 in the up and down directions. In addition, the above scheme also has the advantages of compact structure and small volume.

[0046] Furthermore, a plurality of mounting grooves 2411 are provided on the periphery of the base, and a plurality of mounting seats 243 are detachably provided in the plurality of mounting grooves 2411 in correspondence with each other. Specifically, the mounting seat 243 includes an abutting portion provided with a first pin hole, and a step portion is provided in the mounting groove 2411, and the step portion is provided with a second pin hole. When assembling the bracket body 241, the base is first moved into the groove 224, and then each mounting seat 243 is assembled to the mounting groove 2411 from the respective corresponding second portion 2231, so that the abutting portion of the mounting seat 243 abuts against the top surface of the corresponding step portion, and then a positioning pin is inserted into the first pin hole and the second pin hole, so as to limit the mounting seat 243 in the mounting groove 2411. By means of the above scheme, the difficulty of assembling the bracket body 241 can be reduced.

[0047] In this embodiment, the middle of the clamping jaw 32 is hinged to the clamping jaw bracket 24. Specifically, the mounting seat 243 is provided with a vertically arranged strip groove 2431, and the strip groove 2431 is provided with holes on two inner walls. The middle of the clamping jaw 32 includes a rotating shaft, and the middle of the clamping jaw 32 is located in the strip groove 2431. The two ends of the rotating shaft of the clamping jaw 32 can rotate to match the two holes of the strip groove 2431. The upper part of the clamping jaw 32 is located at the first part 2233 of the limiting notch 223, and the lower part of the clamping jaw 32 is located at the third part 2232 of the limiting notch 223. The outer side of the clamping jaw 32 includes an arc-shaped extension portion 321 which gradually protrudes radially outward from the upper part of the clamping jaw 32 to the middle part of the clamping jaw 32 along the clamping jaw support 24; the clamping jaw driving device 31 includes a ring 312 which is sleeved on the pressure head structure and a telescopic driving member 311 which is used to drive the ring 312 to move up and down along the axis of the pressure head structure; the inner side of the ring 312 is provided with a plurality of actuating members 315 which abut against each arc-shaped extension portion 321 one by one, and each actuating member 315 corresponds to each clamping jaw 32 one by one. The process in which the ring 312 drives the actuating member 315 to slide up and down along the surface of the arc-shaped extension portion 321 forces the clamping jaw 32 to rotate reciprocatingly. Specifically, when each actuating member 315 moves downward, each actuating member 315 squeezes the lower end of each arc-shaped extension 321, thereby forcing each clamping jaw 32 to rotate around its own rotation axis, thereby forcing the lower part of each clamping jaw 32 to turn inward and the upper part of each clamping jaw 32 to turn outward. At this time, the inner side of the lower part of each clamping jaw 32 abuts against the edge of the lamp substrate, thereby clamping the lamp substrate. When each actuating member 315 moves upward, each actuating member 315 squeezes the upper end of each arc-shaped extension 321, thereby causing each clamping jaw 32 to rotate around its own rotation axis, causing the lower part of each clamping jaw 32 to turn outward and the upper part of each clamping jaw 32 to turn inward, thereby causing each clamping jaw 32 to release the lamp substrate. With the aforementioned structure, the present embodiment can have the advantage of compact structure. Of course, in other embodiments, the arc-shaped extension 321 of the clamping jaw 32 can also be other shapes, as long as the aforementioned effect can be achieved.

[0048] Further, please combine Figure 2 , Figure 5 and Figure 7 The actuator 315 includes a column portion 3151 and a hemispherical portion 3152. The column portion 3151 is embedded in the inner side of the collar 312, and the hemispherical portion 3152 is arranged at one end of the column portion 3151 away from the inner side of the collar 312. The actuator 315 abuts against the arc-shaped extension portion 321 of the clamping jaw 32 through the surface of the hemispherical portion 3152, so that the sliding connection process between the actuator 315 and the arc-shaped extension portion 321 of the clamping jaw 32 can be smoother.

[0049] In the present embodiment, the clamping jaw driving device 31 further includes a first connecting member 313 and a second connecting member 314. The telescopic driving member 311 is connected to the pressure sensor 21 through the first connecting member 313, and is connected to the connecting frame through the second connecting member 314. Specifically, the telescopic driving member 311 can be a linearly telescopic driving member such as a telescopic cylinder or an electric cylinder. The first connecting member 313 is an L-shaped plate. The transverse portion of the L-shaped plate is connected to the top surface of the pressure sensor 21, and the inner side of the vertical portion of the L-shaped plate is fixedly connected to the telescopic driving member 311. The second connecting member 314 is a connecting rod, and the two ends of the connecting rod are respectively fixedly connected to the fixed end of the telescopic driving member 311 and the outer side of the connecting seat 23. By means of the above scheme, the clamping jaw driving device 31 can be integrated into the pressure head assembly 20, thereby improving the structural compactness of the lamp substrate riveting mechanism of the present embodiment.

[0050] As long as it does not violate the creative ideas of the present invention, any combination of the various embodiments of the present invention shall be regarded as the contents disclosed by the present invention; within the technical concept of the present invention, any combination of various simple modifications of the technical scheme and different embodiments that does not violate the creative ideas of the present invention shall be within the protection scope of the present invention.

Claims

1. A lamp base plate riveting mechanism, used for riveting the lamp base plate to the heat sink, characterized in that: include: Press down the driving member; A pressing head assembly, wherein the pressing head assembly is driven by the pressing driving member to press the lamp substrate downwardly or upwardly away from the lamp substrate along the axis of the pressing head assembly; as well as A clamping jaw assembly, the clamping jaw assembly comprising a plurality of clamping jaws and a clamping jaw driving device, the plurality of clamping jaws being arranged on the pressing head assembly around the axis of the pressing head assembly, and the clamping jaw driving device driving the plurality of clamping jaws to clamp the lighting fixture substrate inwards before the pressing head assembly presses the lighting fixture substrate; After the clamp driving device drives the plurality of clamps to release the lamp substrate outward, the pressing head assembly presses the lamp substrate; The pressure head assembly includes a pressure head structure, a clamping jaw support and an elastic member, the clamping jaw support is movably arranged on the pressure head structure up and down, the elastic member is arranged between the clamping jaw support and the pressure head structure, and the multiple clamping jaws are arranged on the clamping jaw support; when in a non-working state, the lower ends of the multiple clamping jaws are located below the pressure head structure; when the pressure head structure moves down to squeeze the lamp substrate, the clamping jaw support and the multiple clamping jaws move upward relative to the pressure head structure; after the clamping jaw support moves upward, the elastic force of the elastic member forces the clamping jaw support to move downward to return to its original position.

2. The lamp substrate riveting mechanism according to claim 1, characterized in that: The pressing head structure is arranged at the driving end of the pressing driving member, and is used for pressing the lamp substrate downward.

3. The lamp substrate riveting mechanism according to claim 1, characterized in that: The pressure head structure includes a substrate pressure head, the bottom end surface of the substrate pressure head is provided with a groove which is concave in the up and down directions, and the circumferential side wall of the groove is provided with a plurality of limiting notches whose lower ends pass downward through the lower end surface of the groove; the clamping jaw bracket includes a bracket body for mounting the plurality of clamping jaws; the bracket body is movably arranged in the groove, the plurality of clamping jaws are matched with the plurality of limiting notches one by one, and the plurality of clamping jaws are driven to move up and down along the plurality of limiting notches by the bracket body; when not in working state, the lower ends of the plurality of clamping jaws extend outward from the lower ends of the plurality of limiting notches to below the substrate pressure head.

4. The lamp base plate riveting mechanism according to claim 3, characterized in that: The bracket body includes a guide column protruding upward from the top surface of the bracket body; the substrate pressing head is provided with a guide hole located above the groove and connected to the groove, and the guide column can be inserted into the guide hole movably along its own axial direction; the elastic member is a linear spring sleeved on the guide column, and the two ends of the linear spring respectively abut the top side wall of the groove and the top surface of the bracket body.

5. The lamp substrate riveting mechanism according to claim 3, characterized in that: Each of the multiple limiting notches includes a first portion, a second portion, and a third portion arranged in sequence from top to bottom; the bracket body includes a base and a plurality of mounting seats arranged on the periphery of the base along the axis of the base, and the plurality of mounting seats are assembled one by one and can be moved up and down in the second portion of the multiple limiting notches; the transverse cross-sectional area of ​​each of the mounting seats is larger than the area of ​​the lower port of the first portion and the area of ​​the upper port of the third portion.

6. The lamp substrate riveting mechanism according to claim 5, characterized in that: A plurality of mounting grooves are arranged at the periphery of the base, and the plurality of mounting seats are correspondingly and detachably arranged in the plurality of mounting grooves one by one.

7. The lamp substrate riveting mechanism according to claim 1, characterized in that: The middle part of the jaw is hinged to the jaw bracket, and the outer side of the jaw includes an arc-shaped extension portion that gradually protrudes radially outward from the upper part of the jaw to the middle part of the jaw along the jaw bracket; the jaw driving device includes a ring mounted on the pressure head structure and a telescopic driving member for driving the ring to move up and down along the axis of the pressure head structure; a plurality of actuating members that abut against each of the arc-shaped extension portions are provided on the inner side of the ring, and the jaw is forced to rotate reciprocatingly by the process in which the actuating members are driven by the ring to slide up and down along the surface of the arc-shaped extension portion.

8. The lamp base plate riveting mechanism according to claim 7, characterized in that: The pressure head structure includes a substrate pressure head and a connecting seat, the substrate pressure head includes a connecting column extending vertically and a snap-on cap extending radially from the top of the connecting column; the bottom surface of the connecting seat is provided with an installation cavity which is concave in the up and down directions and has a contracted lower port; the circumferential side wall of the installation cavity is provided with an assembly notch for the connecting column and the snap-on cap to radially enter the installation cavity along the installation cavity, and after the snap-on cap enters the installation cavity, the bottom surface of the snap-on cap abuts against the bottom side wall on the inner side of the installation cavity.

9. The lamp base plate riveting mechanism according to claim 8, characterized in that: The pressure head structure also includes a pressure sensor, and the connecting seat is connected to the movable end of the downward pressing driving member through the pressure sensor, and the thrust of the downward pressing driving member when pressing downward is detected by the pressure sensor.

10. The lamp base plate riveting mechanism according to claim 9, characterized in that: The clamp driving device also includes a first connecting member and a second connecting member; the telescopic driving member is connected to the pressure sensor through the first connecting member, and is connected to the connecting frame through the second connecting member.

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