Workpiece side hole detection device and bottle body joint mistake proof welding device

Abstract

The present application relates to the field of forming equipment, in particular to a workpiece side hole detection device and a bottle body joint mistake-proof welding device, which comprises a positioning plate, a positioning member arranged on the front side of the positioning plate, a containing cavity for containing the workpiece arranged at the distal end of the positioning member, a side hole arranged on the side wall of the containing cavity, at least two detection claws which are distributed at intervals around the circumference of the containing cavity and are hinged to the positioning plate, a claw head arranged at the distal end of the detection claw and extending into the containing cavity through the side hole, a support part fixedly arranged relative to the positioning plate, and an elastic element connected between the rear section of the detection claw and the support part and applying an outward swinging biasing force to the rear section. The present application solves the problems of poor detection adaptability, poor environmental stability and low reset reliability in the prior art, realizes independent detection of the state of multiple side holes around the workpiece and forced uniform reset of each detection claw after detection, thereby improving the mistake-proof detection accuracy of multiple specifications of workpieces and the long-term operation reliability of the device.

Description

Technical Field

[0001] This invention relates to the field of molding equipment, specifically to a workpiece side hole detection device and a bottle body joint anti-miswelding device. Background Technology

[0002] In air suspension systems, the welding quality of the gas cylinder connectors is crucial to the system's sealing and safety. These connectors typically come in various sizes, each corresponding to a different number of side holes for gas line connections or functional valve installation. Before welding, it is essential to confirm that the connector being fitted matches the specifications required for the current production task, i.e., whether the number of side holes corresponds to the target specification. Incorrect specifications will lead to subsequent assembly failures and may even trigger a gas cylinder leakage risk.

[0003] Currently, the main methods for identifying and detecting joint specifications include visual inspection and manual inspection. Visual inspection relies on industrial cameras and image processing algorithms, which have high requirements for lighting conditions and lens cleanliness. It is prone to misjudgment in the dusty and oily environment of welding workshops, and the system cost is high. Manual inspection, on the other hand, is inefficient, and prolonged operation can easily lead to visual fatigue, making it difficult to guarantee the consistency and reliability of the inspection.

[0004] Some mechanical testing devices use a single probe or testing claw for contact judgment. These devices can typically only test a single side hole and cannot comprehensively determine whether the connector specifications match by simultaneously sensing multiple side holes. In addition, long-term use can easily lead to incomplete resetting, affecting the accuracy of subsequent tests.

[0005] In summary, existing technologies suffer from insufficient synchronous detection capability for multiple side holes, difficulty in adapting to the error prevention requirements of multi-specification connectors, and low reset reliability. There is an urgent need for a structural solution that can adapt to multi-specification, independent detection of multiple side holes, and has a forced repositioning function. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a workpiece side hole detection device and a bottle joint anti-mis-welding device. This addresses the problems of insufficient detection adaptability, poor environmental stability, and low reset reliability in existing technologies. It enables independent detection of the status of multiple side holes in the circumferential direction of the workpiece and forced unified repositioning of each detection claw after detection, thereby improving the accuracy of anti-mis-welding detection for multi-specification workpieces and the long-term operational reliability of the device.

[0007] The object of this invention is achieved as follows: a workpiece side hole detection device, comprising: Positioning plate; A positioning element is provided on the front side of the positioning plate. The far end of the positioning element is provided with a receiving cavity for accommodating the workpiece, and the side wall of the receiving cavity is provided with a side hole. At least two detection claws are circumferentially spaced around the receiving cavity and hinged to the positioning plate, and the distal end of the detection claw has a claw head that extends into the receiving cavity through a side hole; The support part is fixedly installed relative to the positioning plate; An elastic element is connected between the rear section of the detection claw and the support section, applying an outward swinging bias force to the rear section, so that the claw head maintains the tendency to retract inward. A pusher capable of axial reciprocating is located behind the positioning plate, and the distal end of the pusher has a concave surface; the pusher has a first position and a second position: In the first position, the concave surface abuts against the tail end of each detection claw, constraining each detection claw to the initial position where the tail end is folded inward. In the second position, the concave surface is located away from the tail end of each detection claw relative to the first position. The rear section of each detection claw can swing outward independently to the outward swing position. When the claw swings outward to the maximum position, the axial projection of the tail end of the detection claw is still within the radial range of the inner wall of the concave surface. Each detection claw is equipped with a first sensor, which is fixed relative to the positioning plate and is used to monitor the outward swing signal of the rear section of the corresponding detection claw.

[0008] It also includes a base, the positioning plate is fixed on the base, and the base is also provided with a first reciprocating linear drive device, the pusher being connected to the drive end of the first reciprocating linear drive device.

[0009] The first reciprocating linear drive device includes a cylinder, which is connected to the base via a vertical plate. The piston rod of the cylinder is provided with the pusher at its extended end. The tail end of the piston rod is hinged to the sliding strip hole on the handle via a first connecting pin. The distal end of the handle is hinged to the vertical plate.

[0010] It also includes a bracket, which is fixed on the base. The top of the bracket extends outward to form the support part corresponding to each detection claw, and there is a gap between two adjacent support parts. The rear section of each detection claw is provided with an inwardly protruding post. The elastic element is a compression spring, with one end of each compression spring mounted on the corresponding support part and the other end mounted on the corresponding post.

[0011] The positioning plate is fixed with a side plate corresponding to each detection claw. The side plate has a sensor mounting hole. The first sensor is installed in the sensor mounting hole, and the sensor mounting hole faces the corresponding detection claw.

[0012] The bottom of the receiving cavity is provided with an end positioning block, which is connected to the positioning plate. A second sensor is provided on the end positioning block to detect whether the workpiece is inserted into place.

[0013] The first sensor is a contact sensor or a proximity sensor; the positioning element has an axially extending inner hole, the distal portion of which forms a receiving cavity, and the inner hole is a non-circular hole; the concave surface is a conical or arcuate surface that expands from the inside out.

[0014] The positioning plate is provided with a mounting groove, and the detection claw is accommodated in the corresponding mounting groove. The mounting groove is provided with a horizontal hinge pin, and the detection claw is hinged to the mounting groove through the hinge pin.

[0015] A bottle joint anti-miswelding device, characterized in that it comprises: frame; Bottle clamps, mounted on the frame, are used to fix bottles in preset positions; The workpiece side hole detection device according to any one of the claims, wherein the workpiece side hole detection device is mounted on a frame; End limiting component, used to tighten the end of the bottle body; The second reciprocating linear drive device has its drive end connected to the end limiting member and is mounted on the frame via a support frame.

[0016] The bottle clamp includes a lower positioning component and an upper pressing component. The lower positioning component has a positioning groove, and the upper pressing component is rotatably mounted on the frame for pressing the bottle. The positioning component is made of copper and includes a columnar bottom connected to a positioning plate and a frustum-shaped top.

[0017] In this design, an elastic element is connected between the rear section of the detection claw and the support section, applying an outward swinging bias force to the rear section to keep the claw head tending to retract inward. The elastic element creates a small elastic clamping force between the claw head and the workpiece surface, avoiding damage to the workpiece surface caused by rigid clamping. This is especially suitable for aluminum or copper workpieces, preventing obvious indentations in non-porous areas of the workpiece surface.

[0018] By cooperating with the pusher and the elastic element, multiple detection claws are uniformly constrained and released. In the first position, the concave surface of the pusher uniformly constrains each detection claw to its initial position, keeping the claw heads open to facilitate workpiece insertion. In the second position, the concave surface releases the constraint on the tail ends of each detection claw, and under the biasing force of the elastic element, the rear ends of each detection claw can independently respond to the contact state of the workpiece sidewall. Thus, each detection claw can independently be in different outward swing positions depending on whether the claw head is embedded in the workpiece side hole, thereby simultaneously sensing the presence of the circumferential side hole of the workpiece and achieving synchronous detection of the side hole.

[0019] Each detection claw is equipped with a corresponding first sensor. Each first sensor independently detects whether its corresponding detection claw has swung outwards. Based on the signal combination of each first sensor, the actual number and position of the side holes on the workpiece can be determined, thereby accurately identifying whether the workpiece specifications match and realizing error-proof detection of workpieces with multiple specifications. At the same time, the placement orientation of the hole features can also be determined based on the signals. When the detection claw swings outwards to its maximum position, the axial projection of its tail end is still within the radial range of the inner wall of the concave surface. When the pusher returns from the second position to the first position, the concave surface can re-contact the tail ends of each detection claw, achieving unified forced return and enabling the detection claws in different states to complete the reset in one movement.

[0020] The concave surface of the pusher simultaneously performs two functions: uniform constraint opening before detection and forced repositioning after detection. It has a compact structure, simple control logic, and no need to set up an additional reset mechanism, which reduces the structural complexity and manufacturing cost of the device.

[0021] This device senses the condition of side holes by detecting direct contact between the detection claw and the workpiece sidewall. It is unaffected by harsh environmental factors such as workshop smoke, oil, light, and welding conditions, resulting in high detection stability and reliability. Using a contact sensor avoids the central area of ​​harsh working conditions, extends service life, and is more cost-effective, making it suitable for the continuous operation requirements of automated production lines.

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 A schematic diagram of the anti-mis-welding device for the bottle joint; Figure 2 A schematic diagram of the bottle clamping process; Figure 3 This is a schematic diagram of the arrangement of the detection claws; Figure 4 Cross-sectional structural diagram of the anti-misfit welding device for the bottle joint; Figure 5 A schematic diagram of the actual state of the positioning component; Figure 6 A schematic diagram of the actual state of the pusher component.

[0024] In the attached diagram, 100 is the frame, 200 is the bottle clamp, 210 is the lower positioning component, 211 is the positioning groove, 220 is the upper pressing component, 230 is the end limiting component, 240 is the second reciprocating linear drive device, 250 is the support frame, 310 is the positioning plate, 311 is the side plate, 313 is the mounting groove, 314 is the hinge pin, 320 is the positioning component, 321 is the receiving cavity, 322 is the side hole, 330 is the support part, and 340 is the elastic element. 350 is the end positioning block, 360 is the second sensor, 370 is the base, 380 is the bracket, 390 is the first reciprocating linear drive device, 391 is the cylinder, 392 is the upright plate, 393 is the piston rod, 394 is the handle, 395 is the first connecting pin, 396 is the sliding bar hole, 400 is the detection claw, 410 is the claw head, 420 is the rear section, 421 is the protruding post, 500 is the pusher, 510 is the concave surface, and 600 is the first sensor. Detailed Implementation

[0025] Referring to the accompanying drawings, specific embodiments of the present invention will be described in detail.

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

[0027] In the description of this application, it should be understood that the terms center, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, and outer, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, the terms first and second are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as first and second can be used to explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, multiple means two or more. It should be noted that in practical applications, due to limitations in equipment accuracy or installation errors, absolute parallelism or perpendicularity is difficult to achieve. The descriptions of vertical, parallel, or unidirectional in this application are not absolute limitations, but rather indicate that vertical or parallel structural settings can be achieved within a preset error range, and the corresponding preset effects can be achieved. In this way, the technical effects of the defined features can be maximized, and the corresponding technical solutions can be easily implemented, thus having high feasibility.

[0028] In the description of this specification, references to the terms "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] See Figures 1 to 6 One embodiment of a workpiece side hole detection device includes a positioning plate 310, a positioning element 320, detection claws 400, a support 330, an elastic element 340, a pushing element 500, and a first sensor 600. In this embodiment, there are three detection claws 400, which are circumferentially spaced around the receiving cavity 321, and the included angle between adjacent detection claws 400 corresponds to the theoretical distribution angle of the side holes on the workpiece.

[0030] The positioning plate 310 is the basic support component of the device, and has a front side and a rear side. In this article, "front side" refers to the side facing the direction of workpiece feeding, and "rear side" refers to the side away from the direction of workpiece feeding.

[0031] The positioning member 320 is disposed on the front side of the positioning plate 310. The distal end of the positioning member 320 is provided with a receiving cavity 321 for accommodating the workpiece. The side wall of the receiving cavity 321 is provided with a side hole 322, which penetrates the side wall radially along the receiving cavity 321 to form a channel for the claw head 410 of the detection claw 400 to extend into.

[0032] In this embodiment, the positioning element 320 is made of copper. The positioning element 320 includes a columnar bottom connected to the positioning plate 310 and a frustum-shaped top. The positioning element 320 has an axially extending inner hole, the distal portion of which forms a receiving cavity 321. The inner hole can be a non-circular hole, which can limit circumferential positioning. In this embodiment, the inner hole is a square hole, which forms the receiving cavity 321 to accommodate the insertion and positioning of a square connector. Simultaneously, the copper material avoids scratching the workpiece surface, has excellent heat dissipation performance, and is not prone to solder adhesion. The positioning element 320 is preferably made of chromium-zirconium copper. For testing requirements during the welding process, welding is performed after testing. Chromium-zirconium copper has superior heat dissipation performance and is less prone to solder adhesion.

[0033] In this embodiment, to accommodate the gas cylinder connector, three detection claws 400 are circumferentially spaced around the receiving cavity 321, and each detection claw 400 is hinged to the positioning plate 310 via a hinge pin 314. Specifically, the positioning plate 310 is provided with an installation space, which is a groove or hole provided on the positioning plate. In this embodiment, the installation space is a mounting groove 313 provided on the outer edge of the positioning plate, and the bottom wall of the mounting groove 313 constrains the swing amplitude of the detection claw 400. The detection claw 400 is accommodated in the corresponding installation space, and a transverse hinge pin 314 is provided in the installation space. The detection claw 400 is hinged to the installation space via the hinge pin 314, so that each detection claw 400 can swing independently around the hinge pin 314 in its respective installation space.

[0034] Each detection claw 400 has a centripetally extending claw head 410 at its distal end. The claw head 410 extends into the receiving cavity 321 through a side hole 322. When a workpiece is inserted into the receiving cavity 321, the claw head 410 opens outward to allow the workpiece to be inserted.

[0035] The support portion 330 is fixedly disposed relative to the positioning plate 310. In this embodiment, the device further includes a base 370, on which the positioning plate 310 is fixedly disposed. The base 370 may be composed of a single component or multiple components connected to form a support structure. In this embodiment, the base 370 may have a horizontally arranged horizontal plate and a vertical plate fixedly connected to the end of the horizontal plate.

[0036] A bracket 380 is fixed on the base 370, and the top of the bracket 380 extends outward to form a support portion 330 corresponding to each detection claw 400. There is a gap between two adjacent support portions 330, which ensures that the swing of each detection claw 400 does not interfere with each other.

[0037] The elastic element 340 is connected between the rear section 420 of the detection jaw 400 and the support portion 330. The rear section 420 refers to the portion of the detection jaw 400 located on the side away from the jaw head 410 at the hinge point. The elastic element 340 applies an outward swinging bias force to the rear section 420, causing the detection jaw 400 to tend to rotate around the hinge pin 314, the rear section 420 to swing outward, and the jaw head 410 to retract inward. The elastic element 340 creates a non-rigid clamping relationship between the jaw head 410 and the workpiece surface, avoiding damage to the workpiece surface caused by rigid clamping, which is especially suitable for aluminum or copper workpieces.

[0038] In this embodiment, the elastic element 340 is a compression spring. Each detection claw 400 has an inwardly protruding protrusion 421 at its rear section 420. One end of each compression spring is mounted on the corresponding support portion 330, and the other end is mounted on the corresponding protrusion 421. The preload of the spring is transmitted to the rear section 420 through the protrusion 421, providing a continuous and stable outward biasing force to the rear section 420. The elastic element 340 is easily deformable, compressible in the axial direction to provide axial elastic force, responding to relative axial positional movement. Simultaneously, the elastic element 340 can also adapt to relative changes in the horizontal position of the protrusion 421 and the support portion 330, simplifying the motion structure and resulting in a simple overall construction.

[0039] A reciprocating pusher 500 is disposed on the rear side of the positioning plate 310. The distal end of the pusher 500 has a concave surface 510, which is a conical or arc-shaped surface that expands from the inside to the outside; in this embodiment, a conical surface is used as an example. The pusher 500 has a first position and a second position, and is driven to switch between the two positions by a first reciprocating linear drive device 390.

[0040] Specifically, a first reciprocating linear drive device 390 is provided on the base 370, and a pusher 500 is connected to the drive end of the first reciprocating linear drive device 390.

[0041] In this embodiment, the first reciprocating linear drive device 390 includes a cylinder 391, which is connected to the base 370 via a vertical plate 392. A pusher 500 is provided at the extended end of the piston rod 393 of the cylinder 391. The tail end of the piston rod 393 is hinged to a sliding strip hole 396 on a handle 394 via a first connecting pin 395, and the distal end of the handle 394 is hinged to the vertical plate 392. This handle structure allows the gripper 410 to accurately reach the target position by manually operating the pusher 500 when the cylinder 391 fails or the air pressure decreases, so that the workpiece can be clamped.

[0042] The bottom of the receiving cavity 321 is provided with an end positioning block 350, which is connected to the positioning plate 310. The end positioning block 350 is provided with a second sensor 360, which is used to detect whether the workpiece is inserted into place. When the workpiece is fully inserted into the receiving cavity 321 and its end face abuts against the end positioning block 350, the second sensor 360 is triggered. After confirming that the workpiece is installed in place, the system can proceed to the subsequent steps.

[0043] The following is a detailed description of the two positions of the pusher 500 and the overall working process of the device.

[0044] In the initial state, the pusher 500 is in the first position. At this time, the concave surface 510 abuts against the tail end of each detection claw 400. To better adapt to the contact, the outer wall end of the tail end of the detection claw 400 is rounded, which constrains each detection claw 400 to the initial position where the tail end is retracted inward. The constraint force provided by the concave surface 510 overcomes the bias force of the elastic element 340, keeping each claw head 410 in an open state, providing space for workpiece insertion.

[0045] When the workpiece is inserted into the receiving cavity 321 of the positioning member 320, the second sensor 360 sends a positioning signal when the end face of the workpiece abuts against the end positioning block 350. Since the pusher 500 is still in the first position, the concave surface 510 locks each tail end in the initial position, and each detection claw 400 cannot swing.

[0046] The pusher 500 moves to the second position, with the concave surface 510 positioned relative to the first position, away from the tail ends of each detection claw 400. Under the biasing force of the elastic element 340, each detection claw 400 independently generates different responses based on the contact state between the claw head 410 and the workpiece sidewall: if the claw head 410 is facing the side hole on the workpiece, the biasing force of the elastic element 340 drives the detection claw 400 to swing, with its rear section 420 swinging outward, and the claw head 410 extending into the workpiece side hole through the side hole 322, exhibiting a large swing amplitude; if the claw head 410 is blocked by the outer side wall of the workpiece, the detection claw 400 cannot swing further, and the swing amplitude is smaller. Thus, the rear sections 420 of each detection claw 400 can independently swing outward to the outward swing position.

[0047] During this process, when the detection claw 400 swings outward to its maximum position, the axial projection of its tail end is still within the radial range of the inner wall of the concave surface 510. This ensures that the swing limit position of each tail end does not exceed the radial projection of the inner wall of the concave surface 510, thus providing a structural basis for the subsequent pusher 500 to re-contact all tail ends when it returns.

[0048] Each first sensor 600 detects whether the rear end of the corresponding detection claw 400 has swung outwards and outputs a corresponding detection signal. In this embodiment, the first sensor 600 is installed in the sensor mounting hole on the side plate 311. The positioning plate 310 is fixed with a side plate 311 corresponding to each detection claw 400. The side plate 311 has a sensor mounting hole facing the corresponding detection claw 400. When a contact sensor is used, the detection claw 400 swings outwards, and its outer side wall contacts the contact sensor, triggering the sensor. When a proximity sensor is used, the detection claw 400 swings outwards to the sensing surface of the proximity sensor, and the sensor outputs a signal. The control system determines the actual number and position of the side holes on the workpiece based on the signal combination of each first sensor 600, thereby identifying whether the joint specification matches the current production task. If all three first sensors 600 output a swing-out signal, it indicates that the joint has three side holes corresponding to the three detection claws; if any first sensor 600 does not output a signal, it indicates that there is no side hole at the corresponding position of the claw head 410, the joint specification does not match the preset, and an alarm is issued.

[0049] After the test is completed, the pusher 500 returns from the second position to the first position. Since the axial projection of the tail end of each detection claw 400 is still within the radial range of the inner wall of the concave surface 510 when it swings out to its maximum position, the concave surface 510 can re-contact the tail ends of all detection claws 400 during its forward movement. Even if each detection claw 400 is in a different outward swing position during the test, the concave surface 510 forcibly pushes its tail end back to the initial position, achieving unified forced repositioning and preparing for the next test.

[0050] When the pusher 500 returns, it provides uniform mechanical rigidity to all the detection claws 400. Even after long-term use, each detection claw 400 can still return to its accurate position, which improves the long-term operational reliability of the device and facilitates clamping.

[0051] This invention also provides a device for preventing incorrect welding of bottle body joints, see [link to related document]. Figures 1 to 6 An embodiment of a bottle joint anti-misfit welding device is provided. This device is particularly suitable for specification error prevention detection of gas cylinder joints in air suspension systems. That is, by sensing the actual number of side holes on the joint, it confirms whether the clamped joint is of the specification required by the current production task, thereby preventing welding defects caused by specification mismatch.

[0052] The anti-miswelding device for bottle joints includes a frame 100, a bottle clamp 200, a workpiece side hole detection device as described in the above embodiment, an end limiter 230, and a second reciprocating linear drive device 240.

[0053] A bottle clamp 200 is mounted on the frame 100 to fix the bottle in a preset position. Specifically, the bottle clamp 200 includes a lower positioning member 210 and an upper pressing member 220. The lower positioning member 210 has a positioning groove 211, in which the bottle is placed. The upper pressing member 220 is rotatably mounted on the frame 100 to press the bottle and prevent it from moving during the welding process.

[0054] The workpiece side hole detection device is installed on the frame 100, with the positioning part 320 facing the bottle body connector. It is used to detect whether the connector clamped on the bottle body is correct. The connector specification usually has two holes or one hole.

[0055] The end limiting member 230 is used to press against the end of the bottle body and cooperates with the bottle body clamp 200 to achieve axial positioning of the bottle body. The driving end of the second reciprocating linear drive device 240 is connected to the end limiting member 230, and the second reciprocating linear drive device 240 is mounted on the frame 100 through the support frame 250.

[0056] Before welding, the bottle is placed in the positioning groove 211 of the lower positioning member 210, and the upper pressing member 220 is closed to fix the bottle. The second reciprocating linear drive device 240 drives the end limiting member 230 to press against the end of the bottle, completing the axial positioning of the bottle. The connector is then inserted into the receiving cavity 321 of the positioning member 320, and the second sensor 360 detects whether the connector is inserted in place. The workpiece side hole detection device inspects the joints to determine if the joint specifications match and the position is correct. For example, in this embodiment, the gas cylinder assembly to be welded includes two pairs of gas cylinders. One gas cylinder joint has two holes arranged vertically, and the other gas cylinder joint has one hole. Not only must the corresponding specifications be correct, but in some cases, such as when the etched pattern on the cylinder body needs to face outwards or towards a specific direction after assembly, the relative orientation of the cylinder body and the joint must be guaranteed. Typically, alternating welding is used, meaning that the corresponding joints in one pair of gas cylinders are welded sequentially on the same device. During welding, at least one hole on the joint is usually installed facing upwards. If no hole is facing upwards, the system alarms. The detection signal from the topmost claw 400, combined with signals from other claws, indicates the joint specifications and the orientation of the two-hole joint. After confirming the specifications and orientation are correct, the subsequent welding process between the joint and the cylinder body can be automatically started, while simultaneously counting and uploading the data to the system. If the specifications do not match, an alarm signal is issued and welding cannot be started, thus achieving error prevention.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the invention. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A workpiece side hole detection device, characterized in that, include: Positioning plate (310); The positioning element (320) is located on the front side of the positioning plate (310). The far end of the positioning element (320) is provided with a receiving cavity (321) for accommodating the workpiece. The side wall of the receiving cavity (321) is provided with a side hole (322). At least two detection claws (400) are circumferentially spaced around the receiving cavity (321) and hinged to the positioning plate (310). The distal end of the detection claw (400) has a claw head (410) that extends into the receiving cavity (321) through a side hole (322). The support part (330) is fixedly disposed relative to the positioning plate (310); An elastic element (340) is connected between the rear section (420) of the detection claw (400) and the support (330), and applies an outward swinging bias force to the rear section (420) so that the claw head (410) maintains the tendency to retract inward. An axially reciprocating pusher (500) is located behind the positioning plate (310), and the distal end of the pusher (500) has a concave surface (510); the pusher (500) has a first position and a second position: In the first position, the concave surface (510) abuts against the tail end of each detection claw (400), constraining each detection claw (400) to the initial position where the tail end is folded inward; In the second position, the concave surface (510) is located away from the tail end of each detection claw (400) relative to the first position. The rear section (420) of each detection claw (400) can swing outward independently to the outward position. When the claw swings outward to the maximum position, the axial projection of the tail end of the detection claw (400) is still within the radial range of the inner wall of the concave surface (510). Each detection claw (400) is provided with a first sensor (600), which is fixed relative to the positioning plate (310) and is used to monitor the outward swing signal of the rear section (420) of the corresponding detection claw (400).

2. The workpiece side hole detection device according to claim 1, characterized in that, It also includes a base (370), the positioning plate (310) is fixed on the base (370), and the base (370) is also provided with a first reciprocating linear drive device (390), the pusher (500) is connected to the drive end of the first reciprocating linear drive device (390).

3. The workpiece side hole detection device according to claim 2, characterized in that, The first reciprocating linear drive device (390) includes a cylinder (391), which is connected to the base (370) via a vertical plate (392). The piston rod (393) of the cylinder (391) is provided with the pusher (500) at its extended end. The tail end of the piston rod (393) is hinged to the sliding strip hole (396) on the handle (394) via a first connecting pin (395). The far end of the handle (394) is hinged to the vertical plate (392).

4. The workpiece side hole detection device according to claim 2, characterized in that, It also includes a bracket (380), which is fixed on the base (370). The top of the bracket (380) extends outward to form the support part (330) corresponding to each detection claw (400), and there is a gap between two adjacent support parts (330). The rear section (420) of each detection claw (400) is provided with an inwardly protruding protrusion (421). The elastic element (340) is a compression spring, with one end of each compression spring mounted on the corresponding support part (330) and the other end mounted on the corresponding protrusion (421).

5. The workpiece side hole detection device according to claim 1, characterized in that, The positioning plate (310) is fixed with a side plate (311) corresponding to each detection claw (400). The side plate (311) has a sensor mounting hole. The first sensor (600) is installed in the sensor mounting hole, and the sensor mounting hole faces the corresponding detection claw (400).

6. The workpiece side hole detection device according to claim 1, characterized in that, The bottom of the receiving cavity (321) is provided with an end positioning block (350), which is connected to the positioning plate (310). The end positioning block (350) is provided with a second sensor (360) for detecting whether the workpiece is inserted into place.

7. The workpiece side hole detection device according to claim 1, characterized in that, The first sensor (600) is a contact sensor or a proximity sensor; the positioning member (320) has an axially extending inner hole, the distal portion of which forms a receiving cavity (321), and the inner hole is a non-circular hole; the concave surface (510) is a conical or arc-shaped surface that expands from the inside to the outside.

8. The workpiece side hole detection device according to claim 1, characterized in that, The positioning plate (310) is provided with a mounting groove (313), and the detection claw (400) is accommodated in the corresponding mounting groove (313). The mounting groove (313) is provided with a horizontal hinge pin (314), and the detection claw (400) is hinged to the mounting groove (313) through the hinge pin (314).

9. A bottle body joint anti-miswelding device, characterized in that, include: Rack (100); Bottle clamp (200), mounted on frame (100), is used to fix the bottle in a preset position; The workpiece side hole detection device according to any one of claims 1 to 8, wherein the workpiece side hole detection device is mounted on the frame (100); End limiting member (230) is used to tighten the end of the bottle body; The second reciprocating linear drive device (240) is connected to the end limit member (230) at the drive end and is mounted on the frame (100) via a support frame (250).

10. The anti-mis-welding device for bottle joints according to claim 9, characterized in that, The bottle clamp (200) includes a lower positioning member (210) and an upper pressing member (220). The lower positioning member (210) is provided with a positioning groove (211). The upper pressing member (220) is rotatably mounted on the frame (100) for pressing the bottle. The positioning member (320) is made of copper and includes a columnar bottom connected to the positioning plate (310) and a frustum-shaped top.

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