A telescopic boom component for automatic gripping and conveying of heavy workpieces.

Abstract

This invention discloses a telescopic arm component for the automatic gripping and conveying of heavy workpieces, comprising a cantilever assembly, a blocking assembly, and a telescopic arm assembly. The cantilever assembly connects to an external slide and provides guidance; the blocking assembly is mounted on the cantilever assembly for limiting movement; the telescopic arm assembly is slidably mounted on the cantilever assembly. The telescopic arm assembly employs a multi-stage telescopic structure, and its stroke is amplified through a chain and sprocket mechanism, with a hook gripping the workpiece. This invention features a compact structure, high load-bearing capacity, high guiding accuracy, and multiple detection protections and excellent protective performance, significantly improving the stability and reliability of heavy workpiece handling.

Description

Technical Field

[0001] This invention belongs to the technical field of automated material handling equipment, specifically relating to a telescopic arm component for the automatic gripping and conveying of heavy workpieces. Background Technology

[0002] In automated production lines, especially for handling heavy sheet metal, workpiece subplates, or molds, telescopic boom mechanisms are core actuators. Existing telescopic booms typically have complex structures, often making it difficult to simultaneously guarantee high load-bearing capacity, high motion accuracy, and a compact structural layout. Particularly when a long extension is required to grip workpieces, the deflection and rigidity of the cantilever end present design challenges. Furthermore, existing solutions often fall short in terms of the control accuracy and positioning detection of the gripping mechanism, as well as the rationality of pipeline layout, easily leading to high equipment failure rates and inconvenient maintenance. Summary of the Invention

[0003] Purpose of the invention: The technical problem to be solved by the present invention is to overcome the contradiction between the load-bearing capacity and the extension length of the telescopic arm component in the prior art, and to provide a telescopic arm component for automatic gripping and conveying of heavy workpieces that is compact in structure, has high guiding accuracy, stable and reliable gripping action, and good protective performance.

[0004] Technical solution: To achieve the above objectives, the present invention adopts the following technical solution: A telescopic arm component for automatic gripping and conveying of heavy workpieces includes a cantilever assembly, a blocking assembly, and a telescopic arm assembly; the cantilever assembly is fixedly connected to the slide assembly of an external rotating column component and provides guidance and load-bearing for the workpiece sub-plate assembly; the blocking assembly is fixedly installed on the cantilever assembly and is used to limit and block the movement of the workpiece sub-plate assembly; the telescopic arm assembly is slidably installed on the cantilever assembly and is the main power component for gripping the workpiece sub-plate assembly.

[0005] Furthermore, the cantilever assembly includes a cantilever structural body, a mounting plate, lateral roller bearings, a rigid stop, and roller bearings; the cantilever structural body is the main load-bearing structural component, and its back side is used to connect with the slide assembly of the rotating column component; the mounting plate is fixedly disposed on the side of the cantilever structural body for connection with the telescopic arm assembly; the roller bearings are arranged along the length direction of the cantilever structural body to support the upper and lower sub-plate assemblies and provide guidance for their movement; the lateral roller bearings are disposed on the side wall of the cantilever structural body to provide lateral guidance for the movement of the upper and lower sub-plate assemblies; the rigid stop is disposed at the end of the cantilever structural body to mechanically limit the movement range of the upper and lower sub-plate assemblies.

[0006] Furthermore, the blocking assembly includes a blocking mechanism cylinder, a cylinder mounting plate, a connecting plate, a fixing plate, a buffer block, and a blocking pin; the fixing plate is fixedly mounted on the main body of the cantilever structure; the connecting plate is fixedly connected to the fixing plate; the cylinder mounting plate is fixedly connected to the connecting plate; the blocking mechanism cylinder is mounted on the cylinder mounting plate, and its power output end is connected to the blocking pin; the buffer block is disposed on the movement path of the blocking pin and is used to provide buffering when the blocking pin limits the upper and lower material plate assemblies.

[0007] Furthermore, the telescopic arm assembly includes a lower roller plate, an upper roller plate, a telescopic rod, a puller, and a hook; the lower roller plate is fixedly mounted on the mounting plate of the cantilever assembly; the upper roller plate is slidably mounted on the lower roller plate via roller bearings; the upper roller plate cylinder is fixedly mounted on the upper roller plate, and its movable end is connected to the telescopic rod via a connecting block, for driving the telescopic rod to move linearly relative to the upper roller plate; the puller is slidably mounted on the telescopic rod via a puller rail and a puller rail slider; the hook is mounted on the puller via a hook cylinder, for gripping the workpiece sub-plate assembly.

[0008] Furthermore, the telescopic arm assembly also includes a chain and a sprocket; the movable end of the upper plate cylinder of the roller conveyor is connected to the ox-pulling mechanism through the chain and sprocket, forming a movable pulley transmission mechanism to amplify the stroke of the ox-pulling mechanism.

[0009] Furthermore, the telescopic arm assembly also includes side guide roller bearings, which are disposed on both sides of the upper plate of the roller conveyor and cooperate with the inner sidewall of the lower plate of the roller conveyor to provide lateral guidance for the movement of the upper plate of the roller conveyor.

[0010] Furthermore, the telescopic arm assembly also includes a proximity switch sensor and a sensing block; the proximity switch sensor is mounted on the roller conveyor plate via a proximity switch sensor bracket; the sensing block is disposed on the telescopic rod and is used to trigger the proximity switch sensor to detect the movement position of the telescopic rod.

[0011] Furthermore, the telescopic boom assembly also includes a travel limit sensor and a sensing block; the travel limit sensor is mounted on the upper plate of the roller conveyor via a travel limit sensor bracket; the sensing block is disposed on the telescopic boom and is used to trigger the travel limit sensor to provide a travel limit position signal of the telescopic boom.

[0012] Furthermore, the telescopic boom assembly also includes a telescopic boom guard and a telescopic boom guard bracket; the telescopic boom guard bracket is fixedly installed on the upper plate of the roller conveyor; the telescopic boom guard is installed on the telescopic boom guard bracket and covers the top of the telescopic boom assembly.

[0013] Furthermore, the telescopic arm assembly also includes a drag chain groove and a drag chain bracket; the drag chain groove is disposed on one side of the upper plate of the roller conveyor along the telescopic direction; one end of the drag chain for the pipeline is connected to the puller through the drag chain bracket, and the other end is slidably disposed in the drag chain groove.

[0014] Beneficial effects: Compared with the prior art, the present invention has the following beneficial effects: 1. High load-bearing capacity and high-precision guidance: The roller bearings and lateral roller bearings on the cantilever assembly form stable multi-point support and guidance for the upper and lower material plate assemblies, which not only ensures the load-bearing capacity, but also improves the smoothness of movement.

[0015] 2. Multi-stage telescopic and stroke amplification: The telescopic rod is driven by the hydraulic cylinder of the upper plate of the roller conveyor, and the tug is driven by the chain and sprocket mechanism, which realizes multi-stage telescopic action, effectively increases the gripping stroke, and has a compact structure.

[0016] 3. Multiple detection and safety protection: Position detection is achieved through proximity switch sensors, and extreme position protection is provided through travel limit sensors. Combined with hard limit and blocking components, a complete electrical and mechanical dual safety protection system is formed.

[0017] 4. Excellent protection: The design of the telescopic boom guard and cable chain groove effectively prevents dust, iron filings and other debris from falling into the moving mechanism and pipelines, improving the durability and reliability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the telescopic arm component in this invention; Figure 2 This is a schematic diagram of the cantilever assembly structure in this invention; Figure 3 This is a schematic diagram of the blocking component structure in this invention; Figure 4 This is a schematic diagram of the main structure of the telescopic arm assembly in this invention; Figure 5 This is a top view of the telescopic arm assembly in this invention. Figure 6 It is in this invention Figure 5 A schematic diagram of the AA cross-sectional structure. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below, so that those skilled in the art can better understand the advantages and features of the present invention, thereby making a clearer definition of the scope of protection of the present invention. The embodiments described in this invention are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example

[0020] like Figure 1 As shown, a telescopic arm component for automatic gripping and conveying of heavy workpieces includes: a cantilever assembly 1, a blocking assembly 2, and a telescopic arm assembly 3. The cantilever assembly 1 serves as a base, with one end connected to the slide of the rotating column component and the other end supporting the telescopic arm assembly 3. The blocking assembly 2 is mounted on the cantilever assembly 1 and is used to position and block the workpiece subplate.

[0021] like Figure 2 As shown, the cantilever assembly 1 includes a cantilever structural body 11, a mounting plate 12, lateral roller bearings 13, a hard stop 14, and roller bearings 15. The cantilever structural body 11 is welded from high-strength steel and has a mounting interface on its back for fixing to the slide assembly. The mounting plate 12 is welded to the side of the cantilever structural body 11 and has precision mounting holes for fixing the lower roller plate 31 of the telescopic arm assembly 3. Multiple roller bearings 15 are arranged along the upper surface of the cantilever structural body 11 to form a rolling support surface on which the workpiece sub-plate assembly moves. The lateral roller bearings 13 are installed on the side of the cantilever structural body 11 to guide the side of the workpiece sub-plate and prevent it from deviating. The hard stop 14 is a high-strength metal block installed at the front end of the cantilever structural body 11. When the electrical control fails, it provides a final mechanical stop for the workpiece sub-plate to prevent it from falling.

[0022] like Figure 3 As shown, the blocking assembly 2 includes a blocking mechanism cylinder 21, a cylinder mounting plate 22, a connecting plate 23, a fixing plate 24, a buffer block 25, and a blocking pin 26. The fixing plate 24 is fixed to the side of the cantilever structure body 11 by bolts. The connecting plate 23 is vertically connected to the fixing plate 24, and the cylinder mounting plate 22 is fixed to the top of the connecting plate 23, forming a suspended structure to leave space for the pipeline layout below. The blocking mechanism cylinder 21 is installed vertically, and its piston rod extends downward and connects to the blocking pin 26. The buffer block 25 is installed directly below the blocking pin 26. When the blocking pin 26 descends to block the workpiece sub-plate, the buffer block 25 contacts the workpiece sub-plate first to absorb the impact energy.

[0023] like Figure 4-6As shown, the telescopic arm assembly 3 is the core component for realizing the gripping action. The lower roller plate 31 is bolted to the mounting plate 12 of the cantilever assembly 1. The upper roller plate 36 is supported on the lower roller plate 31 by multiple roller bearings 35 and can slide along its length. The fixed end of the lower roller plate cylinder 34 is hinged to the lower roller plate 31 via a lower roller plate cylinder fixed end mounting seat 32, and its movable end is connected to the upper roller plate 36 via a lower roller plate cylinder movable end mounting seat 33. When the lower roller plate cylinder 34 extends or retracts, it drives the upper roller plate 36 to slide on the lower roller plate 31.

[0024] A secondary telescopic mechanism is further provided on the upper plate 36 of the roller conveyor. The fixed end of the upper plate cylinder 316 is fixed to the rear of the upper plate 36 via the upper plate cylinder mounting seat 334 and the cylinder mounting seat fixing plate 335, and its movable end is connected to the telescopic rod 39 via the connecting block 315. The telescopic rod 39 is slidably mounted on the upper plate 36 via the telescopic rod rail 321 and the telescopic rod rail slider 320. Therefore, the extension and retraction of the upper plate cylinder 316 can drive the telescopic rod 39 to extend or retract further relative to the upper plate 36.

[0025] To grip the workpiece, a puller 327 is provided at the front end of the telescopic rod 39. The puller 327 is slidably mounted on the telescopic rod 39 via a puller rail 310 and a puller rail slider 311. The movement of the puller 327 is driven by the roller conveyor upper plate cylinder 316 through a transmission mechanism. In this embodiment, the transmission mechanism includes a chain 324, a sprocket 325, and a sprocket shaft 326. The sprocket 325 is mounted at the front end of the telescopic rod 39 via the sprocket shaft 326. One end of the chain 324 is fixed to the roller conveyor upper plate 36, and the other end passes around the sprocket 325 and is fixed to the puller 327. Thus, when the roller conveyor upper plate cylinder 316 pushes the telescopic rod 39 to extend, due to the action of the movable pulley of the sprocket 325, the puller 327 will extend forward at twice the speed and stroke of the telescopic rod 39, achieving stroke amplification.

[0026] The hook 332 is mounted on the puller 327 via a hook cylinder 329. The fixed end of the hook cylinder 329 is hinged to the puller 327 via a hook cylinder fixed end mounting seat 328, and its movable end is connected to the hook 332. When the hook 332 extends into the pull hole of the workpiece subplate, the hook cylinder 329 drives the hook 332 to rotate or swing, thereby hooking the workpiece. A buffer block 333 is located behind the hook 332 and acts as a buffer when the workpiece is pulled back.

[0027] To precisely control the position, a proximity switch sensor 317 is mounted on the upper plate 36 of the roller conveyor via a proximity switch sensor bracket 37, and a sensing block 314 is provided on the telescopic rod 39. When the sensing block 314 moves to the vicinity of the proximity switch sensor 317, a signal is triggered, indicating that the telescopic rod 39 has retracted to its position. At the same time, a travel limit sensor 312 is mounted at the end of the upper plate 36 of the roller conveyor via a travel limit sensor bracket 313, and cooperates with another sensing block on the telescopic rod 39 to provide an extreme position protection signal.

[0028] In addition, for protection and pipeline management, the telescopic boom cover 38 covers the telescopic boom assembly 3 via the telescopic boom cover bracket 323. Hydraulic lines, sensor cables, etc., for the roller conveyor upper plate cylinder 316 and hook cylinder 329 are housed in the hook cable chain 330. One end of the cable chain is fixed to the puller 327 via the hook cable chain bracket 331, and the other end is laid in the cable chain groove 319. The cable chain groove 319 is fixed to the side of the roller conveyor upper plate 36 via the cable chain bracket 318, thereby ensuring that the pipelines move smoothly with the moving parts and avoiding tangling.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A telescopic arm component for automatic gripping and conveying of heavy workpieces, characterized in that, It includes a cantilever assembly (1), a blocking assembly (2), and a telescopic arm assembly (3); The cantilever assembly (1) is used to be fixedly connected to the slide assembly of the external rotating column component and to provide guidance and load-bearing for the workpiece sub-plate assembly; The blocking component (2) is fixedly installed on the cantilever component (1) and is used to limit and block the movement of the workpiece sub-plate component; The telescopic arm assembly (3) is slidably mounted on the cantilever assembly (1) and is the main power component of the workpiece gripping sub-plate assembly.

2. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 1, characterized in that, The cantilever assembly (1) includes a cantilever structural body (11), a mounting plate (12), a lateral roller bearing (13), a hard limit (14), and a roller bearing (15); The main body (11) of the cantilever structure is the main load-bearing structure, and its back is used to connect with the slide assembly of the rotating column component. The mounting plate (12) is fixedly installed on the side of the cantilever structure body (11) for connection with the telescopic arm assembly (3); The roller bearings (15) are arranged along the length of the cantilever structure body (11) to support the upper and lower material plate assemblies and provide guidance for their movement; The lateral roller bearing (13) is installed on the side wall of the cantilever structure body (11) and plays a lateral guiding role in the movement of the upper and lower material plate assemblies; The hard limiter (14) is set at the end of the cantilever structure body (11) to mechanically limit the movement range of the upper and lower material plate assemblies.

3. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 2, characterized in that, The blocking assembly (2) includes a blocking mechanism cylinder (21), a cylinder mounting plate (22), a connecting plate (23), a fixing plate (24), a buffer block (25), and a blocking pin (26); The fixing plate (24) is fixedly installed on the main body (11) of the cantilever structure; The connecting plate (23) is fixedly connected to the fixing plate (24); The cylinder mounting plate (22) is fixedly connected to the connecting plate (23); The blocking mechanism cylinder (21) is mounted on the cylinder mounting plate (22), and its power output end is connected to the blocking pin (26); The buffer block (25) is set on the movement path of the blocking pin (26) to provide buffering when the blocking pin (26) limits the upper and lower material plate assemblies.

4. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 1, characterized in that, The telescopic arm assembly (3) includes a lower roller plate (31), an upper roller plate (36), a telescopic rod (39), a pull nut (327), and a pull hook (332); The lower roller plate (31) is fixedly installed on the mounting plate (12) of the cantilever assembly (1); The upper roller plate (36) is slidably mounted on the lower roller plate (31) via roller bearings (35); The upper plate cylinder (316) of the roller conveyor is fixedly installed on the upper plate (36) of the roller conveyor. Its movable end is connected to the telescopic rod (39) through the connecting block (315) and is used to drive the telescopic rod (39) to move linearly relative to the upper plate (36). The ox-pulling mechanism (327) is slidably mounted on the telescopic rod (39) via the ox-pulling rail (310) and the ox-pulling rail slider (311); The hook (332) is mounted on the puller (327) via the hook cylinder (329) and is used to grip the workpiece sub-plate assembly.

5. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 4, characterized in that, The telescopic arm assembly (3) also includes a chain (324) and a sprocket (325); the movable end of the roller conveyor upper plate cylinder (316) is connected to the ox (327) through the chain (324) and the sprocket (325) to form a movable pulley transmission mechanism, which is used to amplify the stroke of the ox (327).

6. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 4, characterized in that, The telescopic arm assembly (3) also includes a side guide roller bearing (322), which is disposed on both sides of the upper roller plate (36) and cooperates with the inner side wall of the lower roller plate (31) to provide lateral guidance for the movement of the upper roller plate (36).

7. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 4, characterized in that, The telescopic arm assembly (3) also includes a proximity switch sensor (317) and a sensing block (314); the proximity switch sensor (317) is mounted on the upper plate (36) of the roller conveyor via a proximity switch sensor bracket (37); the sensing block (314) is disposed on the telescopic rod (39) and is used to trigger the proximity switch sensor (317) to detect the movement position of the telescopic rod (39).

8. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 4, characterized in that, The telescopic arm assembly (3) also includes a travel limit sensor (312) and a sensing block (314); the travel limit sensor (312) is mounted on the upper plate (36) of the roller conveyor via a travel limit sensor bracket (313); the sensing block (314) is disposed on the telescopic rod (39) and is used to trigger the travel limit sensor (312) to provide a travel limit position signal of the telescopic rod (39).

9. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 4, characterized in that, The telescopic boom assembly (3) also includes a telescopic boom cover (38) and a telescopic boom cover bracket (323); the telescopic boom cover bracket (323) is fixedly installed on the upper plate (36) of the roller conveyor; the telescopic boom cover (38) is installed on the telescopic boom cover bracket (323) and covers the top of the telescopic boom assembly (3).

10. A telescopic arm component for automatic gripping and conveying of heavy workpieces according to claim 4, characterized in that, The telescopic arm assembly (3) also includes a drag chain groove (319) and a drag chain bracket (318); the drag chain groove (319) is arranged on one side of the upper plate (36) of the roller conveyor along the telescopic direction; one end of the drag chain (330) for the pipeline is connected to the puller (327) through the drag chain bracket (331), and the other end is slidably arranged in the drag chain groove (319).

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