An automobile stamping assembly device

Abstract

The present application relates to the technical field of stamping part assembling equipment, in particular to an automobile stamping part assembling equipment, which avoids high dependence on sensor signal feedback and program instruction timing matching through cooperation of a transmission assembly, improves the reliability of continuous production, and reduces production and maintenance costs; comprising a shell, a rotating disc and a positioning module; the rotating disc is rotatably installed at the top end of the shell; a plurality of positioning modules are circumferentially and equidistantly arranged on the rotating disc, and each of the plurality of positioning modules is provided with a positioning clamp; the automobile stamping part assembling equipment further comprises a transmission assembly, a picking device, a cleaning device, a support arm, a base, a support seat, a roller shaft and a conveying belt; the support arm is rotatably installed at the bottom of the base, a driving motor is arranged in the base, and the output end of the driving motor is connected with the support arm in a concentric manner; a plurality of roller shafts are rotatably installed on the support seat; the conveying belt is sleeved outside the plurality of roller shafts; and the support arm and the base are provided with the transmission assembly.

Description

Technical Field

[0001] This invention relates to the technical field of stamping parts assembly equipment, and in particular to an automotive stamping parts assembly equipment. Background Technology

[0002] Automotive stamping parts are fundamental components of core parts such as car bodies and chassis. Their assembly precision, assembly efficiency, and equipment operation stability directly determine the production quality of automotive parts and the assembly precision of the whole vehicle. In the process of mass production of automotive stamping parts, after the stamping, cutting, and shaping processes are completed, the stamping parts need to be assembled by special assembly equipment to complete subsequent assembly operations such as part docking, riveting, and clamping. Therefore, the automation, stability, and linkage of the assembly equipment are the core keys to ensuring the mass production of stamping parts.

[0003] Currently, most mainstream automotive stamping parts assembly equipment on the market adopts an independent drive control mode for its two core actions: turntable indexing rotation and conveyor belt material conveying. Conventional equipment is usually equipped with two independent power mechanisms, which use servo motors and stepper motors with reducers to drive the turntable to achieve intermittent rotation and drive the conveyor belt to achieve intermittent feeding, thereby matching the step-by-step operation rhythm of stamping parts loading, positioning, assembly and unloading.

[0004] For example, in the existing technology announcement number CN215357131U, the invention discloses an assembly equipment for automobile parts, which relates to the field of automobile parts processing and manufacturing technology. The invention includes an overall structure, an assembly structure, a detection structure, a conveying structure and a packaging structure. The lower surface of the mounting plate and the lower surface of the square plate are welded to the upper surface of the base. The two sides of the limiting plate are respectively connected to the two sides of the two connecting plates.

[0005] Existing technologies have revealed many defects and shortcomings in practical production applications: When the existing equipment transfers parts, it needs to rely on external mechanical equipment for operation. The drive mode between departments requires two independent control systems, sensing and detection components and power transmission components. The overall structure of the equipment is complex and there are many parts. This not only greatly increases the manufacturing cost and installation and commissioning cost of the equipment, but also increases the difficulty of maintenance and the probability of failure in the later stage. The dual independent drive mode of electrical program control is highly dependent on sensor signal feedback and program instruction timing matching. Under long-term continuous mass production conditions, it is prone to problems such as signal delay, timing deviation, and aging and failure of electrical components. This leads to misalignment between the intermittent rotation rhythm of the turntable and the feeding rhythm of the conveyor belt, resulting in faults such as stamping part loading deviation, inaccurate positioning, material accumulation, and empty material shutdown. This seriously affects the assembly accuracy of stamping parts and the continuity of production, and the equipment has poor reliability and stability. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides an automotive stamping parts assembly equipment that improves the reliability of continuous production and reduces production and maintenance costs by using transmission components to avoid high dependence on sensor signal feedback and program instruction timing matching.

[0007] The automotive stamping parts assembly equipment of the present invention includes a housing, a turntable, and a positioning module; The turntable is mounted on the top of the housing. Multiple positioning modules are circumferentially equidistantly arranged on the turntable, and each of the multiple positioning modules is equipped with a positioning fixture; it also includes a transmission assembly, a pickup device, a cleaning device, a support arm, a base, a support seat, a roller, and a conveyor belt; The bottom of the support arm is rotatably mounted on the base, and a drive motor is installed inside the base. The output end of the drive motor is concentrically connected to the support arm. Multiple sets of rollers are rotatably mounted on the support base; The conveyor belt is fitted onto the outside of multiple sets of rollers; A transmission assembly is provided on the support arm and the base. The transmission assembly is used to drive the turntable and the roller to rotate by rotating the support arm clockwise and counterclockwise, respectively. The support arm is equipped with a pickup device and a cleaning device at both ends. The pickup device is used to pick up and install the automotive stamping parts, and the cleaning device is used to clean the surface of the automotive stamping parts. The automotive stamping part A is placed on multiple positioning modules and fixed by positioning clamps. The automotive stamping parts B are arranged in sequence on the conveyor belt. In the initial state, the pickup device is located above the turntable. When the drive motor drives the support arm to rotate clockwise, the support arm moves the pickup device to the top of the conveyor belt. Then, the pickup device picks up the automotive stamping part B from the conveyor belt. Subsequently, the drive motor drives the support arm to rotate counterclockwise. The counterclockwise rotation of the support arm moves the automotive stamping part B to the top of the positioning module. At this time, the pickup device moves the automotive stamping part B downward and presses it together with the automotive stamping part A for assembly. This completes one conveying and assembly operation. When the support arm rotates counterclockwise, it drives the frontmost roller to rotate via the transmission assembly. This roller then drives the conveyor belt to rotate, transporting the next automotive stamping part B towards the support arm at one station. When the support arm rotates clockwise, it drives the turntable to rotate clockwise via the transmission assembly. This causes the turntable to move automotive stamping part A at one station via multiple positioning modules. By reciprocating clockwise and counterclockwise rotation of the support arm, automotive stamping parts B and A are assembled. Simultaneously, the conveyor belt and turntable move automotive stamping parts A and B at one station, respectively. This achieves the coordinated transport and assembly of automotive stamping parts. Through the coordinated transmission of the transmission assembly, it avoids heavy reliance on sensor signal feedback and program instruction timing matching, improving the reliability of continuous production and reducing production and maintenance costs.

[0008] Preferably, the transmission assembly includes an adjustment device, an elastic support assembly, a linkage structure, a first one-way bearing, a first sprocket, a first bevel gear, a second bevel gear, a splined shaft, a splined sleeve, a second sprocket, and a chain; The inner ring of the first one-way bearing is fixedly mounted on the rotating end of the foremost roller. The first sprocket is fixedly mounted on the outer ring of the first one-way bearing; The first bevel gear is mounted on the outer wall of the support arm; The second bevel gear is installed at the front end of the splined shaft and meshes with the first bevel gear. The spline shaft is rotatably mounted on the outer wall of the base, and the rear end of the spline shaft is slidably mounted on the spline sleeve. The spline sleeve is rotatably mounted on the adjustment device, which is used to drive the spline sleeve to move horizontally. Multiple sets of second sprockets are fixedly fitted onto the outer wall of the spline sleeve, and the multiple sets of second sprockets are set with different diameters; The chain is fitted onto the first sprocket and one of the sets of second sprockets; The elastic support assembly is mounted on the base and is used to provide elastic support for the chain; The linkage structure is installed between the support arm and the turntable, and is used for transmission between the support arm and the turntable. When the drive motor drives the support arm to rotate, the support arm drives the second bevel gear to rotate through the first bevel gear. After the second bevel gear rotates, it drives the spline sleeve to rotate through the spline shaft, which in turn drives multiple sets of second sprockets to rotate. After the second sprockets rotate, they drive the first sprocket to rotate through the chain. When the support arm rotates counterclockwise, the spline shaft rotates counterclockwise through the transmission between the first and second bevel gears. After the spline shaft rotates counterclockwise, it drives the first sprocket to rotate counterclockwise through the second sprockets and the chain. At this time, the first sprocket drives the frontmost roller to rotate counterclockwise through the first one-way bearing, realizing the roller driving the conveyor belt to rotate and transport the automotive stamping part B forward one station. When the support arm rotates clockwise, the roller remains stationary due to the action of the first one-way bearing, realizing the unidirectional rotation drive of the roller.

[0009] Preferably, the linkage structure includes a first pulley, a rotating shaft, a second one-way bearing, a second pulley, and a transmission belt; The first pulley is fixedly mounted on the outer wall of the support arm; The bottom end of the rotating shaft is rotatably mounted on the inner side wall of the housing, and the top end of the rotating shaft is concentrically connected to the turntable. The inner ring of the second one-way bearing is fixedly fitted onto the outer wall of the shaft; The second pulley is fixedly mounted on the outer ring of the second one-way bearing; The transmission belt is fitted between the first pulley and the second pulley. When the support arm rotates clockwise, the support arm drives the second pulley to rotate through the first pulley and the transmission belt. The second pulley drives the rotating shaft to rotate clockwise through the second one-way bearing. This causes the rotating shaft to drive the turntable to rotate and transport the automotive stamping part A to one station. When the support arm rotates counterclockwise, the rotating shaft remains stationary due to the action of the second one-way bearing. This allows the automotive stamping part A and the automotive stamping part B to move to different stations when the support arm rotates in different directions.

[0010] Preferably, the elastic support assembly includes a first guide seat, a first moving stage, a third sprocket, a guide post, and a spring; The first guide seat is installed on the outer wall of the base; The first moving stage is horizontally slidably mounted on the first guide seat; The third sprocket is rotatably mounted on the outer wall of the first moving platform, and the third sprocket presses against the chain; The guide post is installed on the inner side wall of the first guide seat, and the first movable stage is slidably fitted onto the guide post; The spring is fitted onto the outer wall of the guide post and provides elastic support to the first moving platform. The spring provides elastic support to the first moving platform, which in turn drives the third sprocket to press the chain elastically. When one side of the chain is fitted onto a second sprocket of a different diameter, it is easy to keep the chain taut and improve the reliability of the chain drive.

[0011] Preferably, the adjusting device includes a second guide seat, a second moving stage, and a first cylinder; The second guide seat is installed on the outer wall of the base; The second movable stage is horizontally slidably mounted on the second guide seat, and the spline sleeve end is rotatably mounted on the second movable stage; The fixed end of the first cylinder is installed on the outer wall of the second guide seat, and the moving end of the first cylinder is connected to the second moving table. When it is necessary to adjust the speed of the roller shaft, one side of the chain is first separated from the second sprocket. Then, the first cylinder drives the second moving table to move horizontally, so that the second moving table drives the spline sleeve to move, thereby exchanging the positions of the second sprockets of different diameters. Then, one side of the chain is fitted onto the second sprocket of the corresponding position. By changing the second sprockets of different diameters, it is convenient to drive the roller shaft to rotate at different speeds when the support arm rotates, thereby improving the convenience of adjusting the conveying of automotive stamping parts of different sizes.

[0012] Preferably, the pickup device includes a second cylinder, a first lifting frame, and a suction cup; The fixed end of the second cylinder is mounted on the outer wall of the support arm; The first lifting frame is slidably mounted on the support arm, and the moving end of the second cylinder is connected to the first lifting frame. Multiple suction cups are installed on the bottom of the outer wall of the first lifting frame, and the multiple suction cups are connected to an external vacuum device; by rotating the support arm, the support arm drives the multiple suction cups to move in position, and by the second cylinder, the first lifting frame is driven to slide up and down, so that the first lifting frame drives the multiple suction cups to move up and down to facilitate the picking up of automotive stamping parts.

[0013] Preferably, the cleaning device includes a power motor, a cleaning brush, a third cylinder, and a second lifting frame; The power motor is installed on the outer wall of the second lifting frame, and the second lifting frame is slidably mounted on the support arm. The cleaning brush is rotatably mounted on the outer wall of the second lifting frame and connected to the output end of the power motor; The fixed end of the third cylinder is installed on the outer wall of the support arm, and the moving end of the third cylinder is connected to the second lifting frame. When the support arm moves the cleaning brush above the conveyor belt, the third cylinder drives the second lifting frame to slide downward, so that the second lifting frame moves the cleaning brush downward to contact the automotive stamping parts. The power motor drives the cleaning brush to rotate, so that the cleaning brush cleans the surface of the automotive stamping parts, achieving the cleaning effect during the conveying and assembly of automotive stamping parts.

[0014] Preferably, it also includes a centering cylinder and a push block; The fixed ends of the two sets of centering cylinders are respectively installed on both sides of the support base; Two sets of push blocks are respectively installed on the moving ends of two sets of centering cylinders; the two sets of centering cylinders drive the two sets of push blocks to move closer to each other, so that the two sets of push blocks center and position the automotive stamping parts on the conveyor belt.

[0015] Preferably, it also includes a cover; The cover is installed under the support arm to improve the protection of the equipment under the support arm.

[0016] Preferably, it also includes a limiting protrusion; Limiting protrusions are set on the outer wall of the conveyor belt; this improves the ease of positioning automotive stampings placed on the conveyor belt.

[0017] Compared with the prior art, the beneficial effects of the present invention are: by cooperating with the transmission components, the high dependence on sensor signal feedback and program instruction timing matching is avoided, thereby improving the reliability of continuous production and reducing production and maintenance costs; As the pickup device assembles the automotive stamping parts, the surface of the automotive stamping parts B, located on the conveyor belt, is cleaned by a cleaning device on the other side, thereby improving the parallelism of the processes and increasing processing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isometric structure of the present invention; Figure 2This is an isometric structural diagram showing the connection between the support base and the roller shaft, etc. Figure 3 This is a partial isometric structural diagram showing the connection between the support arm and the base, etc. Figure 4 This is a partial isometric structural diagram of the connection between the first guide seat and the first moving stage, etc. Figure 5 This is a partial isometric structural diagram of the connection between the support arm and the first pulley, etc. Figure 6 This is a partial isometric structural diagram of the connection between the spline sleeve and the second sprocket, etc. Figure 7 This is a partial isometric structural diagram of the connection between the splined shaft and the second bevel gear, etc. Figure 8 This is a partial isometric structural diagram of the connection between the first moving platform and the third sprocket, etc. Figure 9 This is a partial isometric structural diagram of the connection between the support arm and the second cylinder, etc. Figure 10 This is an isometric structural diagram showing the connection between the housing and the rotating shaft.

[0019] In the attached diagram, the following labels are used: 101, housing; 102, turntable; 103, positioning module; 104, support arm; 105, base; 106, support seat; 107, roller; 108, conveyor belt; 201, first one-way bearing; 202, first sprocket; 203, first bevel gear; 204, second bevel gear; 205, splined shaft; 206, splined sleeve; 207, second sprocket; 208, chain; 301, first pulley; 302, rotating shaft; 303, second one-way bearing; 304, second pulley. 305. Transmission belt; 401. First guide seat; 402. First moving stage; 403. Third sprocket; 404. Guide column; 405. Spring; 501. Second guide seat; 502. Second moving stage; 503. First cylinder; 601. Second cylinder; 602. First lifting frame; 603. Suction cup; 701. Power motor; 702. Cleaning brush; 703. Third cylinder; 704. Second lifting frame; 801. Centering cylinder; 802. Push block; 901. Cover; 1001. Limiting protrusion. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0021] Example 1 like Figures 1 to 10As shown, an automotive stamping parts assembly equipment of the present invention includes a housing 101, a turntable 102 and a positioning module 103. The turntable 102 is rotatably mounted on the top of the housing 101. Multiple sets of positioning modules 103 are circumferentially equidistantly arranged on the turntable 102, and each set of positioning modules 103 is provided with a positioning fixture. It also includes a transmission assembly, a pickup device, a cleaning device, a support arm 104, a base 105, a support seat 106, rollers 107, and a conveyor belt 108. The bottom of the support arm 104 is rotatably mounted on the base 105. A drive motor is installed inside the base 105, and the output end of the drive motor is concentrically connected to the support arm 104. Multiple sets of rollers 107 are rotatably mounted on the support seat 106. The conveyor belt 108 is fitted over the multiple sets of rollers 107. The support arm 104 and the base 105 are equipped with a transmission assembly. The transmission assembly is used to drive the turntable 102 and the rollers 107 to rotate by rotating the support arm 104 clockwise and counterclockwise, respectively. The two ends of the support arm 104 are respectively equipped with a pickup device and a cleaning device. The pickup device is used to pick up and install automotive stamping parts, and the cleaning device is used to clean the surface of the automotive stamping parts.

[0022] First, the structure of Embodiment 1 will be described in detail. The housing 101 is a fixed base structure, and a turntable 102 is rotatably mounted on its top via a bearing. The turntable 102 is a circular disc structure, and multiple sets of positioning modules 103 are equidistantly arranged on its outer periphery or upper surface. The number of positioning modules 103 is set according to the actual workstation requirements (e.g., four, six, or eight sets). Each set of positioning modules 103 is fixedly mounted with a positioning fixture for clamping the automotive stamping part A. This positioning fixture is a pneumatic or mechanical fixture, which is a type of existing fixture. Technically, the support arm 104 is a long, strip-shaped arm structure, with its bottom rotatably mounted on the base 105 via a slewing bearing or a rotating shaft. The base 105 is a support body fixedly mounted on the ground or a workbench. A drive motor (preferably a servo motor or stepper motor) is installed inside the base 105. The output shaft of the drive motor is concentrically and fixedly connected to the bottom end of the support arm 104 to drive the support arm 104 to reciprocate in the horizontal plane. The support seat 106 is an independently mounted bracket structure located on one side of the support arm 104. Multiple sets of rollers 107 are rotatably mounted on the support arm 104 via bearings. These rollers 107 are arranged parallel to each other along the conveying direction. The conveyor belt 108 is a flat belt or synchronous belt structure. A tensioning sleeve is fitted around the rollers 107 and circulates with them as they rotate. A transmission assembly is located between the support arm 104 and the base 105, with one part connected to the turntable 102 and the other part connected to the foremost roller 107. The transmission assembly drives the turntable 102 to rotate clockwise by the clockwise rotation of the support arm 104. The workstation utilizes the counterclockwise rotation of the support arm 104 to drive the roller 107 to rotate, thereby causing the conveyor belt 108 to move forward to one workstation. A picking device is fixedly installed at one end (e.g., the left end) of the support arm 104, and a cleaning device is fixedly installed at the other end (e.g., the right end). The picking device is used to pick up the automotive stamping part B from the conveyor belt 108 and transport it to the positioning module 103 on the turntable 102 for assembly. The cleaning device is used to clean the surface of the automotive stamping part B before picking it up.

[0023] Furthermore, the transmission assembly includes an adjustment device, an elastic support assembly, a linkage structure, a first one-way bearing 201, a first sprocket 202, a first bevel gear 203, a second bevel gear 204, a splined shaft 205, a splined sleeve 206, a second sprocket 207, and a chain 208. The inner ring of the first one-way bearing 201 is fixedly fitted onto the rotating end of the foremost roller 107 (i.e., the roller 107 near the support arm 104). The first sprocket 202 is fixedly mounted on the outer ring of the first one-way bearing 201 and rotates synchronously with the outer ring. The first bevel gear 203 is fixedly disposed on the outer side wall of the support arm 104. The second bevel gear 204 is fixedly mounted on the front end of the splined shaft 205 and meshes with the first bevel gear 203 for transmission. The splined shaft 205 is rotatably mounted on the outer side wall of the base 105 via bearings and extends horizontally. The rear end of the splined shaft 205 is provided with an external spline and slides in cooperation with the inner spline of the splined sleeve 206. The spline sleeve 206 can slide axially along the spline shaft 205 but rotates synchronously with the spline shaft 205. The spline sleeve 206 is rotatably mounted on the adjustment device via bearings. The adjustment device is used to drive the spline sleeve 206 to reciprocate in the horizontal direction. Multiple sets of second sprockets 207 are fixedly fitted on the outer wall of the spline sleeve 206 and arranged axially. The multiple sets of second sprockets 207 have different diameters (e.g., diameters increase or decrease sequentially) to achieve different transmission ratios. The chain 208 is fitted between the first sprocket 202 and one of the sets of second sprockets 207 to form a chain drive. The elastic support assembly is set on the base 105. The elastic support assembly is used to provide elastic pressure on the slack or tight side of the chain 208 to maintain the tension of the chain 208. The linkage structure is installed between the support arm 104 and the turntable 102. The linkage structure is used to transmit power to the turntable 102 and drive the turntable 102 to rotate when the support arm 104 rotates clockwise.

[0024] The working process of this embodiment is as follows: Automotive stamping parts A (e.g., housing parts) are placed in the positioning modules 103 on the turntable 102 and clamped and fixed by positioning fixtures. Automotive stamping parts B (e.g., assembly parts) are arranged at equal intervals on the upper surface of the conveyor belt 108. Initially, the picking device is located directly above the turntable 102 and facing one of the positioning modules 103. The drive motor is started, driving the support arm 104 to rotate clockwise. The support arm 104 drives the picking device and cleaning device to swing synchronously, causing the picking device to move from above the turntable 102 to above the conveyor belt 108. When the picking device reaches above the conveyor belt 108, it moves downward to pick up the automotive stamping part B. Subsequently, the drive motor reverses direction, driving the support arm 104 to rotate counterclockwise. The support arm 104 drives the picking device and automotive stamping part B to swing back to the turntable 102. Above 02, the picking device moves downward to place the automotive stamping part B on top of the automotive stamping part A and applies pressure to complete the assembly, thus completing one work cycle. While the support arm 104 rotates counterclockwise, the transmission component transmits power to the front roller 107 and drives the roller 107 to rotate. The roller 107 drives the conveyor belt 108 to move forward one station, so that the next automotive stamping part B can be moved to the picking position. While the support arm 104 rotates clockwise, the transmission component transmits power to the turntable 102 through the linkage structure and drives the turntable 102 to rotate clockwise one station, so that the assembled component is moved out of the assembly station and the next set of automotive stamping parts A to be assembled is moved into the assembly station. In this way, the reciprocating swing of the support arm 104 realizes the linkage operation of picking, cleaning, assembly, turntable indexing and conveyor belt feeding simultaneously.

[0025] The beneficial effects of this embodiment include: by using a single drive motor in conjunction with a transmission component, the mechanical linkage of three actions—support arm swing, turntable indexing rotation, and intermittent conveyor belt feeding—is achieved. This avoids the high dependence of traditional equipment's two independent drive systems on sensor signals and program timing, significantly improving the reliability and stability of continuous production, and reducing equipment manufacturing costs and maintenance difficulty.

[0026] As a preferred option, the drive motor can be a hollow shaft geared motor to reduce the installation space, and the positioning fixture can adopt a quick-change structure to adapt to stamping parts of different specifications.

[0027] Example 2 like Figures 1 to 10 As shown, based on Embodiment 1, the automotive stamping parts assembly equipment of the present invention differs in that: First, the structure of Embodiment 2 will be described in detail. The linkage structure includes a first pulley 301, a rotating shaft 302, a second one-way bearing 303, a second pulley 304, and a transmission belt 305. The first pulley 301 is fixedly mounted on the outer side wall of the support arm 104 and swings synchronously with the support arm 104. The rotating shaft 302 is vertically arranged, and its bottom end is rotatably mounted on the inner side wall of the housing 101 through a bearing. The top end of the rotating shaft 302 passes through the top end of the housing 101 and is concentrically fixedly connected to the bottom center of the turntable 102. The rotating shaft 302 and the housing 101 are connected in a fixed manner. A sealed bearing is provided between 01 to prevent impurities from entering the housing 101. The inner ring of the second one-way bearing 303 is fixedly fitted on the outer wall of the rotating shaft 302. The second pulley 304 is fixedly fitted on the outer ring of the second one-way bearing 303. The transmission belt 305 is fitted between the first pulley 301 and the second pulley 304 to form a belt drive. The second one-way bearing 303 allows the second pulley 304 to drive the rotating shaft 302 to rotate synchronously when rotating clockwise, and to idle relative to the rotating shaft 302 when rotating counterclockwise.

[0028] Furthermore, the elastic support assembly includes a first guide seat 401, a first moving platform 402, a third sprocket 403, a guide post 404, and a spring 405. The first guide seat 401 is a cylindrical or frame-shaped structure and is fixedly installed on the outer side wall of the base 105. The first moving platform 402 is horizontally slidably installed inside the first guide seat 401 and can reciprocate in a direction perpendicular to the direction of the chain 208. The third sprocket 403 is rotatably installed on the outer side wall of the first moving platform 402 via a pivot, and the third sprocket 403 presses the chain from the outside. The loose or tight side of the chain 208 is adjusted to change the wrap angle or tension of the chain 208. The guide post 404 is horizontally fixedly installed on the inner side wall of the first guide seat 401. The first moving platform 402 has a guide hole and is slidably fitted on the guide post 404. The spring 405 is fitted on the outer side wall of the guide post 404. One end of the spring 405 abuts against the inner wall of the first guide seat 401, and the other end of the spring 405 abuts against the first moving platform 402 and applies an elastic force to the first moving platform 402 in the direction of the chain 208.

[0029] Furthermore, the adjustment device includes a second guide seat 501, a second moving platform 502, and a first cylinder 503. The second guide seat 501 is fixedly installed on the outer side wall of the base 105 and extends horizontally. The second moving platform 502 is horizontally slidably installed on the second guide seat 501. The rear end of the spline sleeve 206 is rotatably installed on the second moving platform 502 via a bearing and can rotate freely relative to the second moving platform 502. The fixed end of the first cylinder 503 is fixedly installed on the outer side wall of the second guide seat 501, and the moving end of the first cylinder 503 is fixedly connected to the second moving platform 502. The first cylinder 503 is used to push the second moving platform 502 to slide horizontally, thereby driving the spline sleeve 206 to move axially, so that the second sprockets 207 of different diameters mesh with the chain 208.

[0030] Furthermore, the pickup device includes a second cylinder 601, a first lifting frame 602, and a suction cup 603. The fixed end of the second cylinder 601 is fixedly installed on the outer side wall of one end of the support arm 104 and is vertically arranged. The first lifting frame 602 is slidably installed on the support arm 104 via a slide rail or guide rod. The moving end of the second cylinder 601 is fixedly connected to the first lifting frame 602 to drive the first lifting frame 602 to rise and fall. Multiple sets of suction cups 603 (e.g., four or six sets) are fixedly installed on the bottom of the outer side wall of the first lifting frame 602. The suction cup 603 is a vacuum suction cup and is connected to an external vacuum device (such as a vacuum pump or vacuum generator) through an air pipe. The adsorption surface of the suction cup 603 faces downwards for adsorbing automotive stamping parts B.

[0031] Furthermore, the cleaning device includes a power motor 701, a cleaning brush 702, a third cylinder 703, and a second lifting frame 704. The second lifting frame 704 is slidably mounted on the outer wall of the other end of the support arm 104 via a slide rail or guide rod. The power motor 701 is fixedly mounted on the outer wall of the second lifting frame 704. The cleaning brush 702 is rotatably mounted on the outer wall of the second lifting frame 704 via a bearing, and the rotation shaft of the cleaning brush 702 is connected to the output end of the power motor 701 via a coupling or belt drive. The cleaning brush 702 has a disc-shaped or roller-shaped brush body, and its bristles are made of nylon or horsehair. The fixed end of the third cylinder 703 is fixedly mounted on the outer wall of the support arm 104, and the moving end of the third cylinder 703 is fixedly connected to the second lifting frame 704 to drive the second lifting frame 704 to rise and fall.

[0032] Furthermore, it also includes a centering cylinder 801 and a pushing block 802. The fixed ends of the two sets of centering cylinders 801 are respectively fixedly installed on both sides of the support base 106 and arranged opposite to each other. The moving ends of the two sets of centering cylinders 801 are respectively facing the middle direction of the conveyor belt 108. The two sets of pushing blocks 802 are respectively fixedly installed on the moving ends of the two sets of centering cylinders 801. The inner sidewall of the pushing block 802 is a flat or V-shaped surface for contacting the side of the automotive stamping part B and pushing it to center.

[0033] Furthermore, it also includes a cover 901, which is a shell-shaped protective cover that covers the lower part of the support arm 104 and protects the exposed transmission components such as the first bevel gear 203, the second bevel gear 204, the spline shaft 205, the spline sleeve 206, the second sprocket 207, the chain 208, the first pulley 301, and the transmission belt 305. The cover 901 is provided with a clearance groove for the support arm 104 to swing.

[0034] Furthermore, it also includes limiting protrusions 1001, which are multiple sets of blocks or protrusions that are equidistantly fixed on the outer side wall of the conveyor belt 108. The spacing between two adjacent sets of limiting protrusions 1001 is adapted to the width of the automotive stamping part B, and is used to position the automotive stamping part B placed on the conveyor belt 108 in the front and rear directions to prevent it from sliding during the conveying process.

[0035] The working process of this embodiment is as follows: When the support arm 104 rotates clockwise, it drives the first pulley 301 to rotate clockwise. The first pulley 301 drives the second pulley 304 to rotate clockwise via the transmission belt 305. The second pulley 304 drives the rotating shaft 302 to rotate clockwise via the wedging action of the inner and outer rings of the second one-way bearing 303. The rotating shaft 302 drives the turntable 102 to rotate clockwise by a set angle. When the support arm 104 rotates counterclockwise, the first pulley 301 rotates counterclockwise and drives the second pulley 304 to rotate counterclockwise via the transmission belt 305. At this time, the second one-way bearing 303 is in an overrunning state, the rotating shaft 302 remains stationary, and the turntable 102 does not rotate, thereby realizing one-way indexing drive. During the swinging process of the support arm 104, the support arm 104 drives the spline shaft 205 to rotate through the meshing of the first bevel gear 203 and the second bevel gear 204. The spline shaft 205 drives the spline sleeve 206 to rotate through the spline, and the spline sleeve 206 drives the second sprocket 207 to rotate. The second sprocket 207 drives the first sprocket 202 to rotate through the chain 208. When the support arm 104 rotates counterclockwise, after the bevel gears reverse direction, the spline shaft 205 rotates counterclockwise. The first sprocket 202 is driven to rotate counterclockwise through the chain 208. The first sprocket 202 drives the foremost roller 107 to rotate counterclockwise through the first one-way bearing 201. The roller 107 drives the conveyor belt 108 to move forward one station (the length of this station is equal to the length of the two adjacent sets of automotive stamping parts B in the conveyor belt). (The spacing on the belt 108) When the support arm 104 rotates clockwise, the spline shaft 205 rotates clockwise, and the first sprocket 202 rotates clockwise. At this time, the first one-way bearing 201 is in an overrunning state, the roller shaft 107 remains stationary, and the conveyor belt 108 stops moving. When it is necessary to change the step length of the conveyor belt 108, the first cylinder 503 pushes the second moving table 502 to slide along the second guide seat 501, causing the spline sleeve 206 to drive the second sprockets 207 of different diameters to move to the position where they mesh with the chain 208. Due to the change in the diameter of the second sprocket 207, the angle at which the chain 208 drives the first sprocket 202 to rotate changes under the same swing angle of the support arm 104, thereby changing the rotation angle of the roller shaft 107 and the conveyor belt 108. During the transmission of chain 208, spring 405 pushes the first moving platform 402 to keep the third sprocket 403 pressing against chain 208, ensuring that the wrap angle and tension between chain 208 and the second sprocket 207 remain constant. The second cylinder 601 in the pickup device drives the first lifting frame 602 to descend, causing the suction cup 603 to contact the automotive stamping part B. An external vacuum device creates negative pressure on the suction cup 603 to adsorb the automotive stamping part B. The second cylinder 601 then reverses direction, driving the first lifting frame 602 to rise and complete the pickup. Before or simultaneously with the pickup, the third cylinder 703 in the cleaning device drives the second lifting frame 704 to descend, causing the cleaning brush 702 to contact the surface of the automotive stamping part B. The power motor 701 drives the cleaning brush 702 to rotate to remove surface dust or oil.During the conveying process of the conveyor belt 108, two sets of centering cylinders 801 extend synchronously, causing two sets of pushing blocks 802 to push the automotive stamping part B from both sides towards the center, positioning it in the center. The limiting protrusion 1001, in conjunction with the stepping action of the conveyor belt 108, ensures that each automotive stamping part B stops precisely at the pickup position.

[0036] The beneficial effects of this embodiment include: by utilizing the unidirectional transmission characteristics of the second one-way bearing 303 and the first one-way bearing 201, the same support arm 104 can drive different actuators (turntable 102 and conveyor belt 108) to move in one direction when swinging clockwise and counterclockwise, without the need for complex clutches and brakes, resulting in a compact structure and high reliability. By quickly switching between second sprockets 207 of different diameters in the adjustment device, the stepping distance of the conveyor belt 108 can be adjusted without replacing any parts, thus improving the equipment's adaptability to stamped parts of different specifications. Through the cooperation of spring 405 and third sprocket 403 in the elastic support assembly, the chain 208 automatically maintains tension after switching between second sprockets 207 of different diameters, avoiding the risk of chain skipping or derailment. Automatic centering and positioning of the stamped parts on the conveyor belt 108 is achieved by using the central cylinder 801 and the push block 802, which improves the picking accuracy. The cover 901 protects the exposed sprockets, chains and belts, effectively preventing external dust and foreign objects from entering the transmission components. It also avoids injury to operators from moving parts, thus improving the safety and service life of the equipment. The limiting protrusion 1001 enables precise front-to-back positioning of the stamped part on the conveyor belt 108, avoiding positioning deviations caused by conveyor belt slippage or inertia.

[0037] As a preferred option, the belt drive in the linkage structure can be replaced with a chain drive or a gear drive to achieve a more precise transmission ratio; the first cylinder 503 in the adjustment device can be replaced with an electric push rod or a manual lead screw adjustment mechanism. The suction cup 603 in the picking device can be replaced with a pneumatic gripper or an electromagnet to adapt to stamping parts of different materials and shapes; the cleaning brush 702 in the cleaning device can be replaced with an air knife or an electrostatic eliminator to achieve contactless cleaning.

[0038] It should be understood that the forward and reverse rotation control of the drive motor and the solenoid valve control of each cylinder are all executed by the PLC controller according to a preset program. This control scheme is existing technology and can be implemented by those skilled in the art based on the description in this specification, so it will not be described in detail here.

[0039] The following is combined Figures 1 to 10 The complete working process of the overall technical solution of the automotive stamping parts assembly equipment of the present invention is described below: Automotive stamping part A is placed on multiple positioning modules 103 and fixed by positioning fixtures. Automotive stamping parts B are arranged sequentially on conveyor belt 108. In the initial state, the picking device is located above turntable 102. When the drive motor drives the support arm 104 to rotate clockwise, the support arm 104 moves the picking device above the conveyor belt 108. Then, the picking device picks up the automotive stamping part B on the conveyor belt 108. Subsequently, the drive motor drives the support arm 104 to rotate counterclockwise. The counterclockwise rotation of the support arm 104 moves the automotive stamping part B above the positioning module 103. At this time, the picking device moves the automotive stamping part B downward and presses it together with the automotive stamping part A for assembly. This completes one conveying and assembly operation. When the support arm 104 rotates counterclockwise, it drives the frontmost roller 107 to rotate through the transmission assembly. The roller 107 then drives the conveyor belt 108 to rotate, transporting the next automotive stamping part B towards the support arm 104 to one station. When the support arm 104 rotates clockwise, it drives the turntable 102 to rotate clockwise through the transmission assembly. The turntable 102 moves the automotive stamping part A to one station through multiple positioning modules 103. By reciprocating clockwise and counterclockwise rotation of the support arm 104, automotive stamping parts B and A are assembled. At the same time, the conveyor belt 108 and the turntable 102 move and transport automotive stamping parts A and B to one station respectively, realizing the coordinated transport and assembly of automotive stamping parts. When the pick-up device assembles the automotive stamping parts, the surface of the automotive stamping part B located on the conveyor belt 108 is cleaned by the cleaning device on the other side, thereby improving the parallel processing effect and increasing processing efficiency.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automotive stamping parts assembly equipment, comprising a housing (101), a turntable (102), and a positioning module (103). The turntable (102) is rotatably mounted on the top of the housing (101); Multiple positioning modules (103) are circumferentially equidistantly arranged on the turntable (102), and each of the multiple positioning modules (103) is provided with a positioning fixture; characterized in that, It also includes a transmission assembly, a pickup device, a cleaning device, a support arm (104), a base (105), a support seat (106), a roller (107), and a conveyor belt (108). The bottom of the support arm (104) is rotatably mounted on the base (105), and a drive motor is provided inside the base (105). The output end of the drive motor is concentrically connected to the support arm (104). Multiple sets of rollers (107) are rotatably mounted on the support base (106); The conveyor belt (108) is fitted around the outside of multiple sets of rollers (107); A transmission assembly is provided on the support arm (104) and the base (105). The transmission assembly is used to drive the turntable (102) and the roller (107) to rotate by the clockwise and counterclockwise rotation of the support arm (104), respectively. The support arm (104) is equipped with a pickup device and a cleaning device at both ends. The pickup device is used to pick up and install automotive stamping parts, and the cleaning device is used to clean the surface of automotive stamping parts.

2. The automotive stamping parts assembly equipment as described in claim 1, characterized in that, The transmission assembly includes an adjustment device, an elastic support assembly, a linkage structure, a first one-way bearing (201), a first sprocket (202), a first bevel gear (203), a second bevel gear (204), a splined shaft (205), a splined sleeve (206), a second sprocket (207), and a chain (208). The inner ring of the first one-way bearing (201) is fixedly mounted on the rotating end of the foremost roller (107); The first sprocket (202) is fixedly mounted on the outer ring of the first one-way bearing (201); The first bevel gear (203) is disposed on the outer wall of the support arm (104); The second bevel gear (204) is mounted on the front end of the splined shaft (205) and meshes with the first bevel gear (203); The spline shaft (205) is rotatably mounted on the outer wall of the base (105), and the rear end of the spline shaft (205) is slidably mounted with the spline sleeve (206); The spline sleeve (206) is rotatably mounted on the adjustment device, which is used to drive the spline sleeve (206) to move horizontally; Multiple sets of second sprockets (207) are fixedly fitted on the outer wall of the spline sleeve (206), and the multiple sets of second sprockets (207) are set with different diameters; The chain (208) is fitted onto the first sprocket (202) and one of the sets of second sprockets (207); The elastic support assembly is disposed on the base (105) and is used to provide elastic support for the chain (208); The linkage structure is installed between the support arm (104) and the turntable (102), and the linkage structure is used to drive the transmission between the support arm (104) and the turntable (102).

3. The automotive stamping parts assembly equipment as described in claim 2, characterized in that, The linkage structure includes a first pulley (301), a rotating shaft (302), a second one-way bearing (303), a second pulley (304), and a transmission belt (305). The first pulley (301) is fixedly mounted on the outer wall of the support arm (104); The bottom end of the rotating shaft (302) is rotatably mounted on the inner side wall of the housing (101), and the top end of the rotating shaft (302) is concentrically connected to the turntable (102); The inner ring of the second one-way bearing (303) is fixedly fitted on the outer wall of the shaft (302); The second pulley (304) is fixedly mounted on the outer ring of the second one-way bearing (303); The transmission belt (305) is fitted between the first pulley (301) and the second pulley (304).

4. The automotive stamping parts assembly equipment as described in claim 2, characterized in that, The elastic support assembly includes a first guide seat (401), a first moving stage (402), a third sprocket (403), a guide post (404), and a spring (405). The first guide seat (401) is installed on the outer wall of the base (105); The first moving stage (402) is horizontally slidably mounted on the first guide seat (401); The third sprocket (403) is rotatably mounted on the outer wall of the first moving platform (402), and the third sprocket (403) presses against the chain (208); The guide post (404) is installed on the inner wall of the first guide seat (401), and the first moving stage (402) is slidably mounted on the guide post (404); The spring (405) is fitted onto the outer wall of the guide post (404) and provides elastic support to the first moving stage (402).

5. The automotive stamping parts assembly equipment as described in claim 2, characterized in that, The adjustment device includes a second guide seat (501), a second moving stage (502), and a first cylinder (503); The second guide seat (501) is installed on the outer wall of the base (105); The second movable stage (502) is horizontally slidably mounted on the second guide seat (501), and the end of the spline sleeve (206) is rotatably mounted on the second movable stage (502); The fixed end of the first cylinder (503) is installed on the outer wall of the second guide seat (501), and the moving end of the first cylinder (503) is connected to the second moving table (502).

6. The automotive stamping parts assembly equipment as described in claim 1, characterized in that, The pickup device includes a second cylinder (601), a first lifting frame (602), and a suction cup (603). The fixed end of the second cylinder (601) is mounted on the outer wall of the support arm (104); The first lifting frame (602) is slidably mounted on the support arm (104), and the moving end of the second cylinder (601) is connected to the first lifting frame (602); Multiple suction cups (603) are installed on the bottom of the outer wall of the first lifting frame (602), and the multiple suction cups (603) are connected to the external vacuum equipment.

7. The automotive stamping parts assembly equipment as described in claim 1, characterized in that, The cleaning device includes a power motor (701), a cleaning brush (702), a third cylinder (703), and a second lifting frame (704). The power motor (701) is installed on the outer wall of the second lifting frame (704), and the second lifting frame (704) is slidably installed on the support arm (104); The cleaning brush (702) is rotatably mounted on the outer wall of the second lifting frame (704) and connected to the output end of the power motor (701); The fixed end of the third cylinder (703) is mounted on the outer wall of the support arm (104), and the moving end of the third cylinder (703) is connected to the second lifting frame (704).

8. The automotive stamping parts assembly equipment as described in claim 1, characterized in that, It also includes a center cylinder (801) and a push block (802); The fixed ends of the two sets of centering cylinders (801) are respectively installed on both sides of the support base (106); Two sets of push blocks (802) are respectively installed on the moving ends of two sets of centering cylinders (801).

9. The automotive stamping parts assembly equipment as described in claim 1, characterized in that, It also includes the cover (901); The cover (901) is mounted on the lower part of the support arm (104).

10. The automotive stamping parts assembly equipment as described in claim 1, characterized in that, It also includes a limiting protrusion (1001); The limiting protrusion (1001) is provided on the outer wall of the conveyor belt (108).

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