Tooling jig for automated riveting apparatus and automated riveting apparatus

Abstract

The utility model discloses a tooling jig and automatic riveting equipment for automatic riveting equipment relates to machining equipment technical field, wherein, tooling jig includes connecting base and tooling body. Connecting base is fixedly connected with riveting equipment carousel, and tooling body is detachably connected with connecting base, and the size of tooling body is less than connecting base, makes the edge of both formation step structure. The bending edge of heat dissipation aluminum piece can be placed on the step structure to limit horizontal displacement. Tooling body is equipped with aluminum piece positioning portion and pin positioning portion, and aluminum piece positioning portion cooperates with heat dissipation aluminum piece and realizes pre -fixing, and pin positioning portion realizes pre -positioning through the foot of the constraint pin. When riveting, external force acts on aluminum piece positioning portion and compresses and fixes heat dissipation aluminum piece and pin. The technical scheme provided by the utility model has the advantages of improving the positioning accuracy of heat dissipation aluminum piece and pin, realizing tooling quick replacement and improving riveting assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, and in particular to a tooling fixture for automated riveting equipment and automated riveting equipment. Background Technology

[0002] Traditional riveting equipment typically employs an integrated, fixed structure for its tooling and turntable. This rigid connection method has significant drawbacks: Firstly, when processing different types of heat-dissipating aluminum parts (such as heat sinks of various shapes) or pins of different specifications, the inability to quickly change the tooling means that a single machine can only meet the production needs of a single product model. During product changeovers, operators must disassemble the entire tooling structure, requiring recalibration of the positioning reference and incurring substantial downtime, severely impacting production efficiency. Secondly, existing tooling often uses an elastic positioning mechanism of "compression spring + top block," which has inherent flaws: it provides weak constraint force, making it prone to relative displacement between the heat-dissipating aluminum parts and pins during high-speed operation or riveting impacts; it also lacks multi-dimensional limiting design, failing to effectively restrict horizontal sliding displacement or prevent vertical tilting and deflection, ultimately leading to loss of relative positional accuracy between the heat-dissipating aluminum parts and pins after riveting, resulting in poor product assembly consistency and a high scrap rate. Furthermore, the integrated structure of traditional tooling necessitates complete replacement after localized wear, resulting in high maintenance costs. Utility Model Content

[0003] The main purpose of this utility model is to propose a tooling fixture and automated riveting equipment for automated riveting equipment, which has the advantages of improving the positioning accuracy of heat dissipation aluminum parts and pins, realizing quick tooling changes, and improving riveting assembly efficiency.

[0004] To achieve the above objectives, this utility model proposes a tooling fixture for automated riveting equipment, used for positioning and mounting heat-dissipating aluminum parts and pins. The tooling fixture includes:

[0005] A connecting base is used to securely connect to the turntable of the riveting equipment; and

[0006] The tooling body is detachably connected to the connecting base, and the size of the tooling body is smaller than the size of the connecting base so as to form a stepped structure on at least one edge of both; the heat dissipation aluminum part has a bent edge, which is placed on the stepped structure to limit its horizontal displacement;

[0007] The tooling body is provided with an aluminum part positioning part and a pin positioning part; the aluminum part positioning part is used to cooperate with the heat dissipation aluminum part for pre-fixing; the pin includes a head and a foot, the head cooperates with the aluminum part positioning part for pre-fixing, and the foot is installed on the pin positioning part to achieve pre-positioning; during riveting, the heat dissipation aluminum part and the pin are pressed and fixed by the external force acting on the aluminum part positioning protrusion.

[0008] The technical solution of this utility model restricts the horizontal displacement of the heat dissipation aluminum parts by adopting a stepped structure formed by the detachable tooling body and the connecting base. With the coordinated pre-positioning of the aluminum parts positioning part and the pin positioning part, external force is applied during riveting to eliminate assembly gaps. This has the advantages of improving positioning accuracy, shortening changeover time and reducing scrap rate.

[0009] In one embodiment, the aluminum part positioning portion is a protruding protrusion structure, and the pin positioning portion is a groove structure.

[0010] In one embodiment, the aluminum part positioning part and the pin positioning part are each provided on both sides of the tooling body in the width direction.

[0011] In one embodiment, the aluminum part positioning part is a column protrusion, the pin positioning part is a groove formed by a protrusion on the surface of the tooling body, and the height of the aluminum part positioning part is less than the height of the pin positioning part.

[0012] In one embodiment, the groove of the pin positioning part is a V-shaped groove or a U-shaped groove.

[0013] In one embodiment, the tooling body is located in the middle of the connecting base, and both sides of the tooling body in the width direction form a stepped structure with the connecting base.

[0014] In one embodiment, the tooling body is made of Cr12MoV material.

[0015] In one embodiment, the tooling body is provided with a positioning pin hole for quick-release connection with the connecting base.

[0016] In one embodiment, the height of the tooling body is greater than that of the connecting base.

[0017] This utility model also proposes an automated riveting device, including a turntable and the tooling fixture described above. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an embodiment of the automated riveting equipment provided by this utility model;

[0020] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0022] Figure 4 for Figure 1 A magnified view of a section at point C.

[0023] Explanation of icon numbers:

[0024] 100. Automated riveting equipment; 110. Turntable; 120. Tooling fixture; 121. Connecting base; 122. Tooling body; 122a. Aluminum part positioning part; 122b. Pin positioning part; 123. Stepped structure; 200. Heat dissipation aluminum part; 300. Pin; 310. Head; 320. Foot.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] In existing technologies, traditional riveting equipment uses an integrated fixed structure for the tooling and turntable, which cannot accommodate different models of heat-dissipating aluminum parts and pins, resulting in the equipment only being able to produce a single product. When it is necessary to switch product models, the entire tooling structure must be disassembled, which is time-consuming and inefficient. In addition, traditional tooling uses an elastic positioning method, which has insufficient constraint on the workpiece. During the riveting process, vibration or external force can easily cause the relative position of the aluminum parts and pins to shift, resulting in a decrease in riveting accuracy.

[0030] To address the aforementioned issues, researchers discovered that the rigid connection between the tooling and the turntable was a key factor limiting model compatibility, leading to the proposal of a split-structure design. By disassembling the tooling into a fixed base and a replaceable main body, rapid switching between different tooling models is achieved. Regarding positioning stability, it was observed that the bent edge characteristics of the heat dissipation aluminum component could be constrained by a mechanical limiting structure; therefore, a stepped structure was designed as a horizontal positioning reference. Simultaneously, the collaborative positioning requirements of the aluminum component and pin 300 prompted researchers to integrate an independent positioning unit onto the tooling main body, forming a multi-dimensional constraint mechanism.

[0031] Therefore, this application proposes a tooling fixture and an automated riveting device for automated riveting equipment.

[0032] Reference Figures 1 to 4The tooling fixture 120 proposed in this application includes a connecting base 121 and a tooling body 122. The connecting base 121 is fixedly connected to the riveting equipment turntable 110, and the tooling body 122 is detachably connected to the connecting base 121. The size of the tooling body 122 is smaller than that of the connecting base 121, so that the edges of the two form a stepped structure 123. The bent edge of the heat dissipation aluminum component 200 can be placed on the stepped structure 123 to limit horizontal displacement. The tooling body 122 is provided with an aluminum component positioning part 122a and a pin positioning part 122b. The aluminum component positioning part 122a cooperates with the heat dissipation aluminum component 200 to achieve pre-fixation, and the pin positioning part 122b achieves pre-positioning by constraining the foot 320 of the pin. During riveting, external force is applied to the aluminum component positioning part 122a to press and fix the heat dissipation aluminum component 200 and the pin 300.

[0033] The connecting base 121 is a base component rigidly connected to the turntable 110, which can be achieved by bolt fastening, providing a stable mounting platform for the tooling body 122. The tooling body 122 is a separate module that carries the positioning function, which can be quickly assembled and disassembled with the connecting base 121 through positioning pin holes, facilitating the replacement of different specifications of the body according to the product model. The stepped structure 123 is the drop area formed by the edges of the tooling body 122 and the connecting base 121, which can be achieved by reducing the width or length of the tooling body 122, used to support the bent edge of the heat dissipation aluminum component 200 to limit its horizontal movement freedom. The aluminum component positioning part 122a is a positioning structure protruding from the surface of the tooling body 122, which can be implemented as a cylindrical boss, achieving axial positioning by cooperating with the raised part of the heat dissipation aluminum component 200. The pin positioning part 122b is a constraint structure set on the edge of the tooling body 122, which can be implemented in the form of a groove, used to accommodate the pin's foot 320 and limit its radial displacement.

[0034] Specifically, the tooling body 122 is detachably mounted on the connecting base 121, forming a modular structure that can be quickly replaced. When the heat dissipation aluminum component 200 is installed, its bent edge is embedded in the stepped structure 123, using mechanical limiting to eliminate the risk of horizontal displacement. The protruding structure of the aluminum component positioning part 122a is inserted into the raised part of the heat dissipation aluminum component 200 to achieve axial pre-positioning. The head 310 of the pin cooperates with the raised structure of the heat dissipation aluminum component 200 through the clearance opening, and the foot 320 is embedded in the groove of the pin positioning part 122b, forming a double-point constraint. During the riveting process, the external pressing mechanism applies vertical pressure to the aluminum component positioning part 122a, causing plastic deformation of the contact surface between the heat dissipation aluminum component 200 and the pin 300, while the stepped structure 123 provides a reverse support force, forming a rigid clamping state.

[0035] Compared to existing technologies, traditional tooling uses an integral structure, leading to difficulties in model changeover. This solution, however, utilizes a split design to enable rapid replacement of the tooling body 122, adapting to different product models. Existing technologies rely on elastic elements for positioning, which can easily result in gap misalignment. This solution achieves gapless workpiece fixation through the rigid fit between the stepped structure 123 and the positioning part. Traditional solutions lack a common positioning reference, leading to accumulated assembly deviations. This solution uses the aluminum positioning part 122a as a common axis to simultaneously constrain the relative positions of the heat dissipation aluminum part 200 and the pin 300.

[0036] Through the above technical solutions, this application achieves modular and rapid tooling changeover, shortening product changeover time. The heat dissipation aluminum component 200 eliminates the risk of horizontal displacement through mechanical positioning via its bent edge and stepped structure 123. The pin 300 effectively suppresses rotational offset during riveting through dual-point positioning of its head 310 and foot 320. The aluminum component positioning part 122a serves as a common reference axis, ensuring the coaxiality of the heat dissipation aluminum component 200 and the pin 300 during assembly, significantly improving riveting accuracy.

[0037] Reference Figures 2 to 4 This application further proposes that the aluminum part positioning part 122a is a raised structure and the pin positioning part 122b is a groove structure.

[0038] The protruding structure refers to a rigid protrusion extending upward from the surface of the tooling body 122. It can be implemented in a columnar or block shape, with its sidewalls contacting the edge of the heat sink aluminum component 200 to form a physical engagement, eliminating horizontal displacement gaps through rigid restraint. The groove structure refers to a groove recessed into the surface of the tooling body 122, which can be implemented in a V-shaped or U-shaped cross-section. Its inner wall contacts the surface of the pin's foot 320 to form a wrapping constraint, preventing pin 300 from shifting by limiting the vertical tilt angle of the foot 320.

[0039] Specifically, the raised structure fits tightly against the bent edge of the heat sink aluminum component 200 through its sidewall, forming a rigid barrier in the horizontal direction to prevent displacement of the aluminum component due to external forces or vibrations. The grooved structure provides contact support to the sides or bottom of the pin 320 through its inner wall, limiting the tilt angle in the vertical direction, while the depth of the groove limits the horizontal movement range of the pin 320. The combination of the raised and grooved structures provides rigid constraints on the aluminum component and the pin 300 in both the horizontal and vertical directions, achieving stable positioning without relying on elastic elements.

[0040] Compared to existing technologies, traditional tooling uses elastic blocks and compression springs to apply flexible pressure to the workpiece, which is prone to positioning failure due to spring fatigue or vibration, and cannot limit vertical tilting. This solution, however, eliminates the risks of gaps and wobbling caused by elastic elements through rigid limiting of the protruding structure and enveloping constraint of the groove structure, while achieving multi-dimensional precise positioning.

[0041] Through the above technical solution, this application solves the problem of weak constraint ability of traditional elastic positioning method, so that the aluminum part and pin 300 maintain stable alignment during riveting, reduce the riveting position deviation caused by workpiece offset, and improve riveting accuracy and product qualification rate.

[0042] This application further proposes that an aluminum part positioning part 122a and a pin positioning part 122b are provided on each of the two sides of the tooling body 122 in the width direction.

[0043] The aluminum positioning part 122a is a rigid positioning structure that mates with the heat dissipation aluminum part 200. Specifically, it can be implemented using a raised pillar, with the top plane of the raised pillar contacting the bent edge of the heat dissipation aluminum part 200 to form a vertical limiting position. The pin positioning part 122b is a guide structure that constrains the position of the pin 320. Specifically, it can be implemented using a V-groove formed by machining the surface of the bump, with the inclined sidewall of the V-groove contacting the pin 320 to form a three-point positioning.

[0044] Specifically, aluminum part positioning parts 122a and pin positioning parts 122b are symmetrically arranged on both sides of the tooling body 122 in the width direction, forming a mirror-symmetrical positioning system. When the heat dissipation aluminum part 200 is placed on the stepped structure 123, its two bent edges contact the column protrusions on both sides, forming a bidirectional constraint in the horizontal direction. The pin head 310 is embedded in the column protrusion gap of the aluminum part positioning part 122a, and the foot 320 falls into the V-shaped grooves on both sides at the same time, achieving self-centering through the guiding effect of the grooves on both sides. When riveting pressure is applied, the positioning parts on both sides jointly bear the external force, forming a symmetrically distributed support reaction force to prevent the workpiece from deflecting under pressure.

[0045] Through the above technical solution, this application enables the workpiece to achieve a precise pre-positioned state during the assembly stage, shortening the alignment adjustment time before riveting. It also improves the overall rigidity of the tooling, ensuring that the riveting force is evenly transmitted to the workpiece contact surface, and avoiding positioning failure caused by localized stress concentration.

[0046] This application further proposes that the aluminum part positioning part 122a is a column protrusion, the pin positioning part 122b is a groove formed by the protrusion on the surface of the tooling body 122, and the height of the aluminum part positioning part 122a is less than the height of the pin positioning part 122b.

[0047] The column protrusion refers to a cylindrical or square rigid protrusion on the surface of the tooling body 122 for positioning the heat dissipation aluminum component 200. Specifically, it can be implemented using a columnar structure matching the inner contour of the heat dissipation aluminum component 200, with its top end face forming surface contact with the bent edge of the heat dissipation aluminum component 200. The groove formed by the protrusion refers to a recessed area formed by the protrusion on the surface of the tooling body 122, specifically implemented using a V-shaped or U-shaped cross-section structure. The sidewall of the groove forms multi-directional contact constraints with the pin head 310 and the foot 320. The height of the aluminum component positioning part 122a being less than the height of the pin positioning part 122b means there is a difference in the vertical distance between the top of the column protrusion and the bottom surface of the groove. This can be achieved through a stepped structure design, creating a staggered layout between the aluminum component positioning part 122a and the pin positioning part 122b.

[0048] Specifically, the protruding column is embedded inside the bent edge of the heat dissipation aluminum component 200, and its horizontal displacement is limited by the mechanical interference between the sidewall of the protrusion and the inner wall of the aluminum component. The groove formed by the protrusion wraps the head 310 of the pin within the groove, and the sidewall of the groove forms a circumferential constraint on the head 310 of the pin, while the bottom of the groove supports the pin foot 320. The low height of the aluminum component positioning part 122a ensures that after stacking, the pin positioning part 122b bears pressure, causing the head 310 of the pin to fit against the aluminum component. The staged crimping process avoids misalignment between the aluminum component and the pin 300 during riveting, ensuring that the crimping force transmission path meets the assembly sequence requirements.

[0049] Compared to existing technologies, traditional tooling using elastic top blocks to position aluminum parts relies solely on spring force for single-point contact constraint, which cannot effectively resist horizontal displacement caused by riveting impact. This solution enhances horizontal constraint by using a rigid column protrusion to form surface contact with the aluminum part. When traditional pin 300 positioning uses planar support, pin 300 is prone to tilting due to vibration; this solution eliminates the risk of tilting by using the groove sidewall to form a three-dimensional enclosure around the pin head 310. In traditional tooling, simultaneous pressing of the aluminum part and pin 300 can easily cause interference; this solution eliminates assembly interference by using a height difference structure to achieve staged pressing.

[0050] Through the above technical solution, this application solves the problem of relative position deviation between aluminum parts and pins 300 caused by insufficient positioning constraints during the riveting process. Multi-dimensional positioning is achieved through the three-dimensional cooperation of rigid columns and grooves. At the same time, the height difference design is used to optimize the pressing sequence to ensure that the positional accuracy of the workpiece after riveting meets the process requirements.

[0051] This application further proposes that the groove of the pin positioning part 122b is a V-shaped groove or a U-shaped groove.

[0052] Among them, the V-groove refers to a groove structure with symmetrical inclined surfaces on both sides, which can be formed by the intersection of inclined surfaces with an included angle of 60 degrees to 120 degrees. The inclined surfaces on both sides contact the pin 300 to form a self-centering effect. The U-groove refers to a groove structure with a rounded bottom surface, which can be formed by a rounded surface with a radius matching the diameter of the pin 300. The rounded surface contacts the pin 300 to increase the contact area.

[0053] Specifically, the symmetrical bevels of the V-groove create a bidirectional limiting effect in the horizontal direction. When the pin head 310 is placed inside the groove, the bevels on both sides guide the pin 300 to automatically center, limiting its horizontal displacement. The arc surface of the U-groove forms continuous contact with the pin head 310, dispersing the pressure during the riveting process and preventing local stress concentration that could cause the pin 300 to tilt. Both groove structures use geometric shapes to constrain the position of the pin 300, maintaining a stable relative position between the pin 300 and the heat sink aluminum component 200 during the riveting process.

[0054] Compared to existing technologies, traditional tooling uses a planar positioning structure, which restricts pin 300 through only a single point of contact, making it prone to sliding and displacement due to vibration or external forces. The V-groove compensates for machining errors through the self-centering effect of the inclined surface, accommodating pins 300 of different sizes; the U-groove increases the contact area to improve vertical stability and prevent pin 300 from tilting. Both groove types solve the problem of weak constraint capability in traditional planar positioning.

[0055] Through the above technical solution, this application achieves precise limitation on the horizontal displacement of the pin head 310, ensuring that the relative position of the pin 300 and the heat sink aluminum part 200 remains stable during the riveting process, and avoiding product defects due to positioning deviation. At the same time, the self-adaptive characteristics of the V-groove are compatible with pins 300 of different sizes, and the continuous contact surface of the U-groove reduces local wear and extends the service life of the tooling.

[0056] This application further proposes that the tooling body 122 is located in the middle of the connecting base 121, and that the two sides of the tooling body in the width direction form a stepped structure 123 with the connecting base 121.

[0057] The tooling body 122 being located in the middle of the connecting base 121 means that the centerline of the tooling body 122 coincides with the centerline of the connecting base 121. This can be achieved through a symmetrical layout design, ensuring that the contact area between the tooling body 122 and the connecting base 121 on both sides is equal, thus forming a uniform support structure. The step structure 123 forming on both sides of the width direction means that symmetrical stepped gaps are formed between the two sides of the tooling body 122 and the connecting base 121. This can be achieved by designing the width of the tooling body 122 to be smaller than the width of the connecting base 121. The step structure 123 on both sides can simultaneously limit the bending edges of the heat dissipation aluminum component 200.

[0058] Specifically, when the tooling body 122 is centrally positioned on the connecting base 121, its two side edges form symmetrical stepped structures 123 with the connecting base 121. The bent edges of the heat dissipation aluminum component 200 are placed on the two side steps, and the rigid contact surfaces of the two side steps restrict the horizontal displacement of the aluminum component. Due to the symmetrical distribution of the stepped structures 123, the double-sided constraint forces on the heat dissipation aluminum component 200 during riveting are balanced, avoiding deflection or tilting caused by unilateral limiting. At the same time, the tooling body 122 is fixedly connected to the middle of the connecting base 121, making the overall structure uniformly stressed and further reducing the risk of workpiece displacement caused by vibration or external forces.

[0059] Compared with existing technologies, traditional tooling fixtures 120 only have a stepped structure 123 on one side, resulting in a lack of effective restraint on the other side of the heat dissipation aluminum component 200, which is prone to horizontal displacement or rotation during riveting. In contrast, this solution uses a double-sided symmetrical stepped structure 123 to simultaneously constrain the bent edges of the heat dissipation aluminum component 200 to a rigid contact surface, eliminating the imbalance problem of single-sided restraint. At the same time, it replaces elastic positioning with rigid restraint, significantly improving positioning stability.

[0060] Through the above technical solution, the double-sided stepped structure 123 of this application can effectively limit the horizontal displacement of the heat dissipation aluminum part 200, avoid the misalignment between the pin 300 and the aluminum part caused by the workpiece offset during the riveting process, thereby improving the riveting accuracy and product qualification rate.

[0061] This application further proposes that the tooling body 122 is made of Cr12MoV.

[0062] Cr12MoV refers to a cold work die steel, specifically produced through a heat treatment process of forging followed by quenching and low-temperature tempering. Its microstructure consists of a martensitic matrix and uniformly distributed carbides. The material's high hardness resists frictional wear between the workpiece and tooling during riveting, and the presence of the carbide phase prevents crack propagation, thus enhancing impact resistance.

[0063] Specifically, the tooling body 122 continuously withstands the pressing force from the heat dissipation aluminum part 200 and the pin 300, as well as equipment vibration loads, during the riveting process. Cr12MoV has a yield strength exceeding 1960 MPa and will not undergo plastic deformation under repeated compression, ensuring the relative positional accuracy between the aluminum part positioning portion 122a and the pin positioning portion 122b. The material's heat treatment stability ensures that the surface hardness of the tooling body 122 remains within the HRC 58-62 range during continuous production, preventing hardness decrease due to temperature rise. Compared to ordinary tool steel, Cr12MoV has approximately 15% higher fracture toughness, enabling it to withstand accidental lateral impacts that may occur during pin 300 installation.

[0064] Compared to existing technologies, traditional tooling made of 45# steel or Q235 steel has a hardness of only HRC20-30. After 500 consecutive pressing cycles, visible wear marks appear on the positioning part, causing the pre-positioning deviation of pin 300 to exceed 0.1mm. In contrast, the tooling body 122 made of Cr12MoV material can maintain more than 5000 working cycles under the same working conditions, with the dimensional change of the positioning part controlled within 0.02mm.

[0065] Through the above technical solution, this application effectively solves the problem of early failure of the tooling body 122 due to insufficient material strength, and avoids batch defects caused by tooling deformation. The high wear resistance of the material extends the tooling replacement cycle and reduces equipment downtime for maintenance. The improved impact resistance also reduces the risk of tooling breakage caused by impacts during pin 300 installation, ensuring continuous and stable riveting process.

[0066] This application further proposes that the tooling body 122 is provided with a positioning pin hole for quick connection with the connecting base 121.

[0067] The locating pin hole refers to a through hole or blind hole provided on the tooling body 122. Specifically, it can be a cylindrical hole or a tapered hole, and its axial direction is consistent with the docking direction of the tooling body 122 and the connecting base 121. It is used to form an insertion fit with the locating pin on the connecting base 121. The quick-release connection refers to the fixing or separation of the tooling body 122 and the connecting base 121 by inserting and removing the locating pin and the pin hole. Specifically, it can be achieved by clearance fit or transition fit. In the inserted state, the contact surface between the inner wall of the pin hole and the side of the locating pin forms a rigid constraint.

[0068] Specifically, after aligning the fixture body 122 with the locating pin on the connecting base 121 through the locating pin hole, it is pressed vertically downwards until the locating pin is fully inserted into the pin hole. At this time, the horizontal displacement of the fixture body 122 and the connecting base 121 is limited by the contact surface between the inner wall of the pin hole and the locating pin. During disassembly, the fixture body 122 is lifted vertically to disengage the locating pin from the pin hole, thus completing the separation. This connection method replaces traditional bolt fastening with rigid contact, avoiding thread engagement operations, and the insertion and removal actions can be completed with only linear motion. The docking accuracy between the fixture body 122 and the connecting base 121 is controlled by the machining tolerance of the locating pin and the pin hole, ensuring repeatability and enabling rapid assembly and disassembly.

[0069] Compared to existing technologies, traditional tooling and turntable 110 are fixed by welding or bolts, requiring the disassembly of numerous fasteners and recalibration of the positioning reference during replacement. This solution, however, utilizes the insertion and engagement of positioning pin holes and pins, allowing tooling replacement to be completed with a single insertion and removal action, eliminating the need for auxiliary tools and significantly reducing operation time. Furthermore, traditional elastic positioning structures are prone to positioning reference shifts due to spring deformation, while this solution maintains the relative positional stability of the tooling body 122 and the connecting base 121 through a rigid insertion structure.

[0070] Through the above technical solution, this application solves the problem of low efficiency caused by the need for complete disassembly when changing traditional tooling, realizes the rapid separation and precise reset of tooling body 122 and connecting base 121, and the time of a single disassembly and assembly operation can be controlled within a few seconds. At the same time, it avoids the attenuation of positioning accuracy caused by repeated disassembly and assembly, and ensures the consistency of the relative position of tooling and turntable 110 during riveting.

[0071] This application further proposes that the height of the tooling body 122 is greater than that of the connecting base 121.

[0072] The height of the fixture body 122 being greater than that of the connecting base 121 means that there is a height difference between the fixture body 122 and the connecting base 121 in the vertical direction. This can be achieved by increasing the thickness of the base of the fixture body 122 or lowering the mounting surface of the connecting base 121. This height difference directly forms the vertical support surface of the stepped structure 123, which is used to support the bent edge of the heat dissipation aluminum component 200 and restrict its vertical displacement. The stepped edge formed by the height difference between the connecting base 121 and the fixture body 122 provides lateral constraint to the heat dissipation aluminum component 200 through rigid contact, replacing the flexible support of the spring in the traditional elastic positioning method.

[0073] Specifically, after the tooling body 122 and the connecting base 121 are detachably connected, the upper surface of the tooling body 122 forms a raised platform relative to the upper surface of the connecting base 121. When the bent edge of the heat dissipation aluminum component 200 is placed on the horizontal surface of the stepped structure 123, its vertical fall is blocked by the horizontal surface of the step, while the sidewall of the bent edge contacts the vertical surface of the step, forming a rigid limit on horizontal displacement. During the riveting process, external force is directly applied to the aluminum component positioning part 122a, pressing the heat dissipation aluminum component 200 and the pin 300 against the surface of the tooling body 122. At this time, the vertical surface of the stepped structure 123 continuously provides lateral support, preventing the workpiece from shifting due to the riveting impact force.

[0074] In some specific embodiments, the tooling body 122 and the connecting base 121 can be quickly assembled and disassembled through the engagement of locating pin holes, for example, by using a tapered pin or a spring pin for locking. The mounting surface of the connecting base 121 can be designed as a recessed groove, so that the top of the tooling body 122 is still higher than the surface of the connecting base 121 after it is inserted.

[0075] Compared to existing technologies, traditional tooling and turntable 110 use an integrated fixed structure, requiring complete disassembly to change to different tooling models. This solution, however, utilizes a detachable design between the tooling body 122 and the connecting base 121, allowing adaptation to different products by simply replacing the tooling body 122, significantly reducing changeover time. Furthermore, traditional elastic positioning relies on the compression force of springs for constraint, which is prone to positioning failure due to vibration. This solution, however, directly restricts the vertical and horizontal displacement of the workpiece through a rigid stepped structure 123, significantly improving stability.

[0076] Through the above technical solution, this application solves the problem of low replacement efficiency caused by the fixed connection between the tooling and the turntable 110. At the same time, the rigid step structure 123 formed by the height difference realizes multi-dimensional positioning of the heat dissipation aluminum part 200, avoids workpiece displacement during riveting, and thus improves the product qualification rate.

[0077] This application further proposes an automated riveting device 100, including a turntable 110 and a tooling fixture 120. The tooling fixture 120 includes a connecting base 121 and a tooling body 122. The connecting base 121 is fixedly connected to the turntable 110 of the riveting device. The tooling body 122 is detachably connected to the connecting base 121. The size of the tooling body 122 is smaller than the size of the connecting base 121, so as to form a stepped structure 123 on at least one edge of both. The heat dissipation aluminum component 200 has a bent edge, which is placed on a table. The step structure 123 restricts its horizontal displacement; the tooling body 122 is provided with an aluminum part positioning part 122a and a pin positioning part 122b; the aluminum part positioning part 122a is used to cooperate with the heat dissipation aluminum part 200 for pre-fixation; the pin 300 includes a head 310 and a foot 320, the head 310 cooperates with the aluminum part positioning part 122a for pre-fixation, and the foot 320 is installed on the pin positioning part 122b to achieve pre-positioning; during riveting, the heat dissipation aluminum part 200 and the pin 300 are pressed and fixed by the external force acting on the aluminum part positioning protrusion.

[0078] The connecting base 121 refers to the base structure rigidly connected to the turntable 110, which can be implemented using a metal plate with bolt holes, providing a stable mounting foundation for the tooling body 122. The tooling body 122 is the movable module that carries the positioning function, which can be quickly assembled and disassembled with the connecting base 121 through positioning pin holes. Its size is smaller than the connecting base 121 to form an edge step. The step structure 123 refers to the vertical drop formed between the connecting base 121 and the edge of the tooling body 122, which can be formed by machining into continuous or intermittent limiting surfaces to constrain the horizontal displacement of the bent edge of the heat dissipation aluminum component 200. The aluminum component positioning part 122a refers to a rigid protrusion matching the shape of the heat dissipation aluminum component 200, which can be implemented using a column structure to pre-fix the aluminum component in the vertical direction. The pin positioning part 122b refers to a groove constraining the position of the pin foot 320, which can be a V-shaped or U-shaped groove structure to restrict the freedom of the pin 300 in the horizontal and vertical directions.

[0079] Specifically, the tooling body 122 is detachably mounted on the connecting base 121. When switching product models, only the tooling body 122 needs to be replaced without disassembling the turntable 110. The stepped structure 123 directly prevents the lateral movement of the heat dissipation aluminum component 200 through physical limiting, avoiding the offset risk of traditional elastic positioning. The aluminum component positioning part 122a and the contact surface of the heat dissipation aluminum component 200 form a rigid support in the vertical direction. At the same time, the groove structure of the pin positioning part 122b provides three-point positioning for the foot 320 of the pin 300, ensuring the relative positional accuracy of the two before riveting. During the riveting process, external pressure is directly applied to the aluminum component positioning part 122a, causing the heat dissipation aluminum component 200 and the pin 300 to be pressed together under rigid constraints, eliminating positioning errors caused by assembly gaps.

[0080] Compared to existing technologies, traditional riveting equipment uses a fixed, integrated fixture and turntable 110, making it impossible to quickly change between different fixture models. This solution, however, achieves modular fixture replacement through a separate connecting base 121 and fixture body 122. Traditional fixtures rely on elastic elements to constrain the workpiece, making them susceptible to vibration or external force interference. This solution utilizes the rigid limiting of the stepped structure 123 and the geometric fit of the positioning part to form multi-dimensional mechanical constraints. Existing technologies lack effective limitations on the horizontal displacement of the heat-dissipating aluminum component 200. This solution directly eliminates the possibility of lateral displacement by utilizing the contact surface between the bent edge and the stepped structure 123.

[0081] Through the above technical solution, this application solves the problem of low tooling change efficiency in traditional equipment. The detachable structure enables rapid tooling switching, adapting to the production needs of multiple product models. Simultaneously, the synergistic effect of the stepped structure 123 and the positioning part enhances the stability of workpiece positioning, avoiding positional deviations caused by workpiece offset during riveting, thereby improving product qualification rate. The rigid limiting solution, replacing elastic positioning, effectively eliminates the risk of positioning failure caused by vibration or external forces, ensuring consistent riveting accuracy.

[0082] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A tooling fixture for automated riveting equipment, used for positioning and mounting heat-dissipating aluminum parts and pins, characterized in that, The tooling fixture includes: A connecting base is used to securely connect to the turntable of the riveting equipment; and The tooling body is detachably connected to the connecting base, and the size of the tooling body is smaller than the size of the connecting base so as to form a stepped structure on at least one edge of both; the heat dissipation aluminum part has a bent edge, which is placed on the stepped structure to limit its horizontal displacement; The tooling body is provided with an aluminum part positioning part and a pin positioning part; the aluminum part positioning part is used to cooperate with the heat dissipation aluminum part for pre-fixing; the pin includes a head and a foot, the head cooperates with the aluminum part positioning part for pre-fixing, and the foot is installed on the pin positioning part to achieve pre-positioning; during riveting, the heat dissipation aluminum part and the pin are pressed and fixed by the external force acting on the aluminum part positioning protrusion.

2. The tooling fixture for automated riveting equipment as described in claim 1, wherein the aluminum part positioning part is a protruding structure and the pin positioning part is a groove structure.

3. The tooling fixture for automated riveting equipment as described in claim 2, characterized in that, The aluminum part positioning part and the pin positioning part are each provided on both sides of the tooling body in the width direction.

4. The tooling fixture for automated riveting equipment as described in claim 3, characterized in that, The aluminum part positioning part is a column protrusion, and the pin positioning part is a groove formed by a protrusion on the surface of the tooling body, and the height of the aluminum part positioning part is less than the height of the pin positioning part.

5. The tooling fixture for automated riveting equipment as described in claim 4, wherein the groove of the pin positioning part is a V-shaped groove or a U-shaped groove.

6. The tooling fixture for automated riveting equipment as described in claim 1, characterized in that, The tooling body is located in the middle of the connecting base, and both sides of the tooling body in the width direction form a stepped structure with the connecting base.

7. The tooling fixture for automated riveting equipment as described in claim 1, characterized in that, The tooling body is made of Cr12MoV material.

8. The tooling fixture for automated riveting equipment as described in claim 1, characterized in that, The tooling body is provided with a positioning pin hole for quick-release connection with the connecting base.

9. The tooling fixture for automated riveting equipment as described in claim 1, characterized in that, The height of the tooling body is greater than that of the connecting base.

10. An automated riveting device, characterized in that, Includes a turntable and a tooling fixture as described in any one of claims 1 to 9.

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