Automatic trigger type positioning device for metal working

Abstract

The application discloses a kind of automatic trigger type positioning device for metal processing, belong to metal processing technical field, this automatic trigger type positioning device for metal processing, including base, motor is fixedly connected in the base, the output of motor is fixedly connected with carousel, a plurality of housings are fixedly connected on the base, positioning mechanism is fixedly connected in the housing, ejecting mechanism is fixedly connected in the housing, the convex block is fixedly connected on the base upper surface.This application triggers two linkage paths of push rod locking and carousel clamping by workpiece pushing into this single action, push rod moves and makes recess and lifting plate engage, realizes the automatic locking of workpiece preliminary positioning, baffle moves through rack, gear drive rotating shaft, drives sliding sleeve, first connecting rod and third connecting rod inwardly clamping, and further through arc connecting rod triggers jaw head secondary rotation clamping, greatly simplifies operation step, significantly improves processing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of metal processing technology, and specifically relates to an automatic trigger positioning device for metal processing. Background Technology

[0002] In the field of metal processing (turning, milling, drilling, stamping, etc.), workpiece positioning and clamping are key aspects affecting machining accuracy and efficiency. In traditional machining methods, workpiece loading, unloading, and positioning often rely on manual operation, resulting in low efficiency, poor consistency, and high labor intensity. With the increasing demand for automation, automatic trigger-type positioning devices have become a research hotspot. Their core lies in the ingenious design of the mechanical structure to achieve automatic sensing and chain triggering of positioning actions after the workpiece is in place, eliminating or reducing reliance on electronic sensors.

[0003] Traditional metalworking positioning devices typically separate the positioning, clamping, and locking actions, requiring operators to perform the workpiece pushing, manual locking, and jaw adjustment step by step. This is cumbersome and heavily reliant on manual experience, resulting in excessively long preparation times and low efficiency. Furthermore, existing devices often employ single-stage clamping or single rubber pads, which are insufficient for wrapping and fitting complex-shaped workpieces. In addition, they lack effective mechanical self-locking mechanisms under vibration during processing, making the jaws prone to loosening and causing a significant decrease in positioning accuracy over time. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic trigger positioning device for metal processing.

[0005] The technical solution adopted to solve the above technical problems is: an automatic trigger positioning device for metal processing, including a base, a motor fixedly connected inside the base, a turntable fixedly connected to the output end of the motor, several outer shells fixedly connected to the base, a positioning mechanism fixedly connected inside the outer shell, a pop-out mechanism fixedly connected inside the outer shell, a protrusion fixedly connected to the upper surface of the base, and several foot pads fixedly connected to the lower end of the base. The positioning mechanism includes a pair of rotating shafts rotatably connected inside the housing. Both ends of the pair of rotating shafts are provided with threads in opposite directions. Both ends of the rotating shafts are threadedly connected to a sliding sleeve. A first connecting rod is rotatably connected to the sliding sleeve. A second connecting rod is rotatably connected to the end of the first connecting rod away from the rotating shaft. A gripper head is rotatably connected to the end of the second connecting rod away from the first connecting rod. A third connecting rod is rotatably connected to the gripper head.

[0006] With the above technical solution, when the workpiece is pushed in, it pushes the baffle. The baffle drives the gear to rotate through the rack, which in turn drives the rotating shaft to rotate. The threads on the rotating shaft with opposite directions drive the sliding sleeves at both ends to move outward synchronously. The sliding sleeves push the third link to clamp inward through the first link. At the same time, the first link pushes the second link through the arc-shaped link, causing the gripper head to rotate and clamp twice. This realizes multi-stage linkage clamping triggered by a single push, which effectively simplifies the operation steps.

[0007] Furthermore, a fixed frame is rotatably connected to the end of the third link away from the gripper head, a fixed column is fixedly connected to the fixed frame, the fixed column is fixedly connected to the outer shell, and arc-shaped connecting rods are rotatably connected to both ends of the fixed frame. The end of the arc-shaped connecting rod away from the fixed frame is rotatably connected to the second link, and a gear is fixedly connected to the rotating shaft.

[0008] Through the above technical solution, the fixing frame is fixed inside the outer shell by the fixing column, providing a stable rotation fulcrum for the third link and the arc-shaped link. The arc-shaped link connects the fixing frame and the second link. When the first link pushes the arc-shaped link to rotate, the arc-shaped link can convert the thrust into a driving force on the second link, thereby driving the gripper head to rotate and clamp twice. This achieves a wrap-around positioning and fixing of the workpiece from the outside to the inside, enhancing the fit and stability of the clamping. The gear is fixed on the rotating shaft to receive the power transmitted from the rack and drive the rotating shaft to rotate.

[0009] Furthermore, a pair of second fixing plates are fixedly connected inside the outer shell, and third fixing plates are fixedly connected to both sides of the second fixing plates. A first sliding rod is fixedly connected to the third fixing plate. A limiting block is fixedly connected to the end of the first sliding rod away from the third fixing plate. A first spring is provided on the outer sleeve of the first sliding rod, and a fourth fixing plate is slidably connected to the end of the first sliding rod away from the third fixing plate.

[0010] Through the above technical solution, the second and third fixed plates provide fixed support for the first slide rod, the first slide rod guides the fourth fixed plate, the limiting block limits the sliding stroke of the fourth fixed plate, the first spring is sleeved on the outside of the first slide rod and connected between the third and fourth fixed plates, providing elastic restoring force for the fourth fixed plate and the first fixed plate fixed on it, and providing a power basis for the subsequent automatic reset of the rack and the sliding switching of the positioning pin.

[0011] Furthermore, a first fixed plate is fixedly connected to the fourth fixed plate. The first fixed plate has an arc-shaped hole, through which a positioning pin is slidably connected. A pair of limiting plates are fixedly connected to the positioning pin. The first fixed plate is located between the pair of limiting plates. The second fixed plate has a first sliding groove, a second sliding groove, a third sliding groove, a fourth sliding groove, and a fifth sliding groove. The positioning pin slides in cooperation with the first sliding groove, the second sliding groove, the third sliding groove, the fourth sliding groove, and the fifth sliding groove. A rack is fixedly connected to the end of the first fixed plate away from the second fixed plate. A baffle is fixedly connected to the end of the rack away from the first fixed plate. The gear and the first fixed plate mesh with each other. A first anti-slip rubber strip is fixedly connected to the inner side of the third connecting rod, and a second anti-slip rubber strip is fixedly connected to the inner side of the gripper head.

[0012] Through the above technical solution, the arc-shaped hole on the first fixed plate slides with the positioning pin, and the limiting plate clamps the first fixed plate between them to ensure the stability of relative movement. The positioning pin slides sequentially in the first to fifth slide grooves opened on the second fixed plate. During the clamping process, the positioning pin moves along the third slide groove and stops at the connection between the third slide groove and the fourth slide groove, forming a mechanical self-locking, which effectively prevents the rack and gear from reversing and loosening due to vibration. The rack and gear mesh to realize power transmission. The baffle is used to receive the workpiece pushing force. The first anti-slip rubber strip and the second anti-slip rubber strip are respectively fixed to the inner side of the third connecting rod and the gripper head to realize flexible wrapping and anti-slip clamping of the workpiece surface.

[0013] Furthermore, the pop-out mechanism includes a fifth fixed plate fixedly connected inside the outer casing. A second slide rod is slidably connected through the fifth fixed plate. A groove is provided on the second slide rod. A second spring is sleeved on the second slide rod. One end of the second spring is fixedly connected to the fifth fixed plate. A retaining ring is fixedly connected to the end of the second spring away from the fifth fixed plate. A push rod is fixedly connected to the end of the retaining ring away from the second slide rod.

[0014] Through the above technical solution, the fifth fixing plate is fixed inside the outer shell and provides sliding support for the second slide rod. The groove on the second slide rod is used to engage and lock with the lifting plate. The second spring is sleeved on the second slide rod and connected between the fifth fixing plate and the retaining ring. The retaining ring is fixedly connected to the push rod. When the push rod is pushed by the workpiece, the second spring is compressed and stores energy. After the lifting plate is engaged in the groove, the push rod is locked, thus reserving elastic driving force for subsequent automatic material unloading.

[0015] Furthermore, the push rod passes through the sliding connection baffle, the second slide rod passes through the sliding connection lifting plate, the lifting plate has a through hole, and both ends of the lifting plate are slidably connected to a third slide rod. The upper end of the third slide rod is fixedly connected to a top plate, and the top plate is fixedly connected to the outer shell.

[0016] Through the above technical solution, the push rod passes through the baffle and slides with it, allowing the push rod to move independently of the baffle. The second slide rod passes through the through hole on the lifting plate and slides with it. The two ends of the lifting plate are slidably connected to the top plate through the third slide rod. The third slide rod is fixed between the top plate and the outer shell to provide guidance for the lifting plate. The third spring is sleeved on the third slide rod and provides elastic force to push the lifting plate downward. When the groove moves to the bottom of the lifting plate, the lifting plate automatically locks into the groove under the action of the third spring, realizing the automatic locking of the push rod.

[0017] Furthermore, the third slide rod is fitted with a third spring, the lower end of the lifting plate is fixedly connected to a lifting rod, the lower end of the lifting rod is rotatably connected to a roller, the roller and the protrusion are mutually pressed and engaged, the second slide rod passes through the sliding connection through hole, and the groove and the lifting plate are mutually engaged.

[0018] Through the above technical solution, the third spring is sleeved outside the third slide rod, and its elastic force pushes the lifting plate to always have a downward tendency. The lifting rod at the lower end of the lifting plate forms a pressing fit with the protrusion on the base through the roller. When the motor drives the turntable to rotate, the roller rolls along the contour surface of the protrusion. Under the pushing of the protrusion, the lifting rod drives the lifting plate to overcome the elastic force of the third spring and move upward, thereby making the lifting plate disengage from the groove and release the push rod lock, realizing the automatic release of the lock during unloading.

[0019] Furthermore, the first slide, the second slide, the third slide, the fourth slide, and the fifth slide are connected. The first slide is inclined, and the third and fourth slides are V-shaped. One end of the first spring is fixedly connected to the third fixed plate, and the end of the first spring away from the third fixed plate is fixedly connected to the fourth fixed plate.

[0020] Through the above technical solution, the first slide, second slide, third slide, fourth slide and fifth slide are connected in sequence to form a complete positioning pin movement path. The first slide is inclined to allow the positioning pin to slide in initially. The third slide and the fourth slide are V-shaped, and the intersection of their upper ends serves as the locking position of the positioning pin. At this intersection, the positioning pin is limited by the upper edge of the third slide and the lower edge of the fourth slide to achieve self-locking. The first spring is connected between the third fixed plate and the fourth fixed plate. When the positioning pin moves along the fifth slide, the first spring pushes the fourth fixed plate and then pushes the rack to reset, providing power for the gripper to open and the push rod to unload material.

[0021] The beneficial effects of the present invention are as follows: (1) The present invention triggers two linkage paths, namely push rod locking and turntable clamping, through the single action of pushing the workpiece in. On the one hand, the push rod moves to make the groove engage with the lifting plate, realizing the automatic locking of the workpiece in the initial positioning; on the other hand, the baffle moves to drive the rotating shaft through the rack and gear, driving the sliding sleeve, the first connecting rod and the third connecting rod to clamp inward, and further triggers the second rotation of the gripper head to clamp through the arc connecting rod, which greatly simplifies the operation steps and significantly improves the processing efficiency. At the same time, the workpiece is firmly fixed by the cooperation of the first anti-slip rubber strip and the second anti-slip rubber strip; (2) The present invention drives the first fixing plate to move through the movement of the rack, and the arc hole on it guides the positioning pin to move along the second and third sliding grooves in sequence, and finally gets stuck at the connection of the third and fourth sliding grooves. This mechanical self-locking structure can effectively lock the rack and gear after the workpiece is clamped, preventing the jaws from loosening due to processing vibration or external force, ensuring the clamping stability and positioning accuracy during long-term processing, and solving the problem of accumulated errors or insecure clamping in traditional devices; (3) The present invention drives the turntable to rotate by a motor, so that the roller moves along the protrusion and pushes the lifting rod to move up, thereby driving the lifting plate to disengage from the groove and realizing the automatic release of the push rod lock. Subsequently, the workpiece is pushed to move towards the center, the baffle moves the first fixed plate through the rack, the arc hole guides the positioning pin to move in an orderly manner along the fourth and fifth slides, and completes the automatic reset of the rack with the assistance of the first spring, thereby driving all the jaws to open outward synchronously. At the same time, the second spring pushes the retaining ring and the push rod to automatically push the workpiece out, making the unloading process convenient and efficient, and further improving the overall processing cycle. Attached Figure Description

[0022] Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 yes Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the third-view structure of the present invention; Figure 5 This is a diagram of the positioning mechanism and ejection mechanism of the present invention; Figure 6 This is a diagram of the internal structure of the outer shell of the present invention; Figure 7 This is a diagram of the gripper structure of the present invention; Figure 8 This is a diagram of the slide structure of the present invention; Figure 9 This is an exploded view of the ejection mechanism of the present invention; Figure 10 yes Figure 9 Enlarged view of point B; Figure 11 This is a structural diagram of the positioning pin of the present invention.

[0023] Reference numerals: 1. Base; 2. Motor; 3. Turntable; 4. Housing; 5. Positioning mechanism; 51. Rotating shaft; 52. Gear; 53. Sliding sleeve; 54. First connecting rod; 55. Second connecting rod; 56. Third connecting rod; 57. Gripper head; 58. Arc-shaped connecting rod; 59. Fixing frame; 510. Fixing column; 511. Baffle; 512. Rack; 513. First fixing plate; 514. Arc-shaped hole; 515. Positioning pin; 516. Limiting plate; 517. Second fixing plate; 518. First slide groove; 519. Second slide groove; 520. Third slide groove; 521. 522. Fifth slide groove; 523. Third fixed plate; 524. First slide rod; 525. First spring; 526. Fourth fixed plate; 527. Limiting block; 528. First anti-slip rubber strip; 529. Second anti-slip rubber strip; 6. Pop-out mechanism; 61. Fifth fixed plate; 62. Second slide rod; 63. Push rod; 64. Retaining ring; 65. Groove; 66. Second spring; 67. Top plate; 68. Third slide rod; 69. Third spring; 610. Lifting plate; 611. Through hole; 612. Lifting rod; 613. Roller; 7. Protrusion; 8. Foot pad. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] like Figures 1-11 As shown, an automatic trigger positioning device for metal processing in this embodiment includes a base 1, a motor 2 fixedly connected inside the base 1, a turntable 3 fixedly connected to the output end of the motor 2, several outer shells 4 fixedly connected to the base 1, a protrusion 7 fixedly connected to the upper surface of the base 1, and several foot pads 8 fixedly connected to the lower end of the base 1.

[0026] like Figures 6-8 and Figure 11As shown, a positioning mechanism 5 is fixedly connected inside the outer casing 4. The positioning mechanism 5 includes a pair of rotating shafts 51 rotatably connected inside the outer casing 4. Both ends of the pair of rotating shafts 51 are provided with threads in opposite directions. Both ends of the rotating shafts 51 are threadedly connected to a sliding sleeve 53. A first connecting rod 54 is rotatably connected to the sliding sleeve 53. A second connecting rod 55 is rotatably connected to the end of the first connecting rod 54 away from the rotating shafts 51. A gripper head 57 is rotatably connected to the end of the second connecting rod 55 away from the first connecting rod 54. A third connecting rod 56 is rotatably connected to the gripper head 57. A baffle 511 drives a rack 512, which drives a gear 52 to rotate. The gear 52 drives the rotating shafts 51 to rotate. The threads at both ends of the rotating shaft 51 engage with the sliding sleeve 53, causing the sliding sleeve 53 to move to both ends. The sliding sleeve 53 drives the first connecting rod 54 to move, and the first connecting rod 54 drives the third connecting rod 56 to clamp inward. After the first anti-slip rubber strip 528 clamps the workpiece, the sliding sleeve 53 continues to move outward, while simultaneously driving the first connecting rod 54 to move. The first connecting rod 54 drives the arc-shaped connecting rod 58 to rotate, and the arc-shaped connecting rod 58 pushes the second connecting rod 55 to move. The second connecting rod 55 pushes the gripper head 57 to rotate inward, thereby causing the second anti-slip rubber strip 529 to clamp the workpiece inward. The workpiece is wrapped, positioned, and fixed by the cooperation of the first anti-slip rubber strip 528 and the second anti-slip rubber strip 529.

[0027] The end of the third link 56 away from the gripper head 57 is rotatably connected to a fixed frame 59. A fixed post 510 is fixedly connected to the fixed frame 59 and is fixedly connected to the outer shell 4. Arc-shaped links 58 are rotatably connected to both ends of the fixed frame 59. The end of the arc-shaped link 58 away from the fixed frame 59 is rotatably connected to the second link 55. A gear 52 is fixedly connected to the rotating shaft 51. When the rack 512 moves, the rack 512 drives the first fixed plate 513 to move. The positioning pin 515 in the arc-shaped hole 514 on the first fixed plate 513 moves along the second slide groove 519 to the third slide groove 520. At this time, the first spring 525 pushes the fourth fixed plate 526, and the fourth fixed plate 526 pushes the first fixed plate 513 to move, so that the arc-shaped hole 514 drives the positioning pin 515 to move along the third slide groove 520 and locks it at the connection between the third slide groove 520 and the fourth slide groove 521.

[0028] A pair of second fixing plates 517 are fixedly connected inside the outer casing 4. Third fixing plates 523 are fixedly connected to both sides of each second fixing plate 517. A first sliding rod 524 is fixedly connected to each third fixing plate 523. A limiting block 527 is fixedly connected to the end of the first sliding rod 524 away from the third fixing plate 523. A first spring 525 is fitted over the first sliding rod 524. A fourth fixing plate 526 is slidably connected to the end of the first sliding rod 524 away from the third fixing plate 523. This pushes the workpiece towards the center of the turntable 3, causing the workpiece to move the baffle 511. The baffle 511 is driven by a rack 512. The first fixed plate 513 moves, and the first fixed plate 513 drives the positioning pin 515 to move upward through the arc-shaped hole 514. Since the intersection of the upper ends of the fourth slide groove 521 and the third slide groove 520 is located on the side close to the second slide groove 519, the positioning pin 515 is guided by the upper edge of the fourth slide groove 521 when it moves upward, so that the positioning pin 515 moves along the fourth slide groove 521. Then, under the push of the first spring 525, the positioning pin 515 moves along the fifth slide groove 522. The first spring 525 pushes the first fixed plate 513 to move, and the first fixed plate 513 pushes the rack 512 to move.

[0029] A first fixing plate 513 is fixedly connected to the fourth fixing plate 526. An arc-shaped hole 514 is formed on the first fixing plate 513, and a positioning pin 515 is slidably connected through the arc-shaped hole 514. A pair of limiting plates 516 are fixedly connected to the positioning pin 515. The first fixing plate 513 is located between the pair of limiting plates 516. A first sliding groove 518, a second sliding groove 519, a third sliding groove 520, a fourth sliding groove 521, and a fifth sliding groove 522 are formed on the second fixing plate 517. The positioning pin 515 is connected to the first sliding groove... 518, the second slide groove 519, the third slide groove 520, the fourth slide groove 521 and the fifth slide groove 522 are slidably engaged. A rack 512 is fixedly connected to the end of the first fixed plate 513 away from the second fixed plate 517. A baffle 511 is fixedly connected to the end of the rack 512 away from the first fixed plate 513. The gear 52 and the first fixed plate 513 mesh with each other. A first anti-slip rubber strip 528 is fixedly connected to the inner side of the third connecting rod 56. A second anti-slip rubber strip 529 is fixedly connected to the inner side of the gripper head 57.

[0030] The first slide groove 518, the second slide groove 519, the third slide groove 520, the fourth slide groove 521, and the fifth slide groove 522 are connected. The first slide groove 518 is inclined, and the third slide groove 520 and the fourth slide groove 521 are V-shaped. One end of the first spring 525 is fixedly connected to the third fixed plate 523, and the end of the first spring 525 away from the third fixed plate 523 is fixedly connected to the fourth fixed plate 526. The rack 512 drives the gear 52 to rotate, and the gear 52 drives the rotating shaft 51 to rotate, thereby causing the sliding sleeve 53 to move inward, driving the gripper head 57 and the third connecting rod 56 to open outward. At the same time, the second spring 66 pushes the retaining ring 64 to move, and the retaining ring 64 drives the push rod 63 to move, and the push rod 63 pushes the workpiece out.

[0031] like Figure 6 , Figure 9 and Figure 10 As shown, a pop-out mechanism 6 is fixedly connected inside the outer casing 4. The pop-out mechanism 6 includes a fifth fixed plate 61 fixedly connected inside the outer casing 4. A second slide rod 62 is slidably connected through the fifth fixed plate 61. A groove 65 is provided on the second slide rod 62. A second spring 66 is sleeved on the second slide rod 62. One end of the second spring 66 is fixedly connected to the fifth fixed plate 61. A retaining ring 64 is fixedly connected to the end of the second spring 66 away from the fifth fixed plate 61. A push rod 63 is fixedly connected to the end of the retaining ring 64 away from the second slide rod 62. When the workpiece is pushed into the positioning mechanism 5 towards the center of the turntable 3, the workpiece pushes the push rod 63 to move. The push rod 63 drives the second slide rod 62 to move. When the top of the push rod 63 moves to the baffle 511, the workpiece simultaneously pushes the baffle 511 to move. Then, when the groove 65 moves to the position of the lifting plate 610, the lifting plate 610 is pushed down by the third spring 69, thereby causing the lifting plate 610 to be locked into the groove 65, locking the push rod 63.

[0032] Push rod 63 passes through sliding connection baffle 511, second slide rod 62 passes through sliding connection lifting plate 610, lifting plate 610 has through hole 611, both ends of lifting plate 610 are slidably connected to third slide rod 68, the upper end of third slide rod 68 is fixedly connected to top plate 67, top plate 67 is fixedly connected to outer shell 4, motor 2 drives turntable 3 to rotate, roller 613 moves along protrusion 7, roller 613 pushes lifting rod 612 to move upward, lifting rod 612 drives lifting plate 610 to move upward, thereby disengaging from groove 65 locking, so that push rod 63 can move.

[0033] The third slide rod 68 is fitted with a third spring 69. The lower end of the lifting plate 610 is fixedly connected to a lifting rod 612. The lower end of the lifting rod 612 is rotatably connected to a roller 613. The roller 613 and the protrusion 7 are mutually pressed and engaged. The second slide rod 62 passes through the sliding connection through hole 611. The groove 65 and the lifting plate 610 are mutually engaged and engaged.

[0034] The working principle of this embodiment is as follows: the workpiece is pushed into the positioning mechanism 5 towards the center of the turntable 3. At this time, the workpiece pushes the push rod 63 to move, and the push rod 63 drives the second slide rod 62 to move. When the top of the push rod 63 moves to the baffle 511, the workpiece pushes the baffle 511 to move at the same time. Then, when the groove 65 moves to the position of the lifting plate 610, the lifting plate 610 is pushed down by the third spring 69, so that the lifting plate 610 is stuck into the groove 65 and the push rod 63 is locked.

[0035] At the same time, the baffle 511 drives the rack 512, the rack 512 drives the gear 52 to rotate, the gear 52 drives the rotating shaft 51 to rotate, the threads at both ends of the rotating shaft 51 cooperate with the sliding sleeve 53, driving the sliding sleeve 53 to move to both ends, the sliding sleeve 53 drives the first connecting rod 54 to move, the first connecting rod 54 drives the third connecting rod 56 to clamp inward, after the first anti-slip rubber strip 528 clamps the workpiece, the sliding sleeve 53 continues to move outward, at the same time driving the first connecting rod 54 to move, the first connecting rod 54 drives the arc-shaped connecting rod 58 to rotate, the arc-shaped connecting rod 58 pushes the second connecting rod 55 to move, the second connecting rod 55 pushes the gripper head 57 to rotate inward, so that the second anti-slip rubber strip 529 clamps the workpiece inward, and the workpiece is wrapped, positioned and fixed by the cooperation of the first anti-slip rubber strip 528 and the second anti-slip rubber strip 529.

[0036] When the rack 512 moves, the rack 512 drives the first fixed plate 513 to move. The positioning pin 515 in the arc-shaped hole 514 on the first fixed plate 513 moves along the second slide groove 519 to the third slide groove 520. At this time, the first spring 525 pushes the fourth fixed plate 526, and the fourth fixed plate 526 pushes the first fixed plate 513 to move, so that the arc-shaped hole 514 drives the positioning pin 515 to move along the third slide groove 520 and get stuck at the connection between the third slide groove 520 and the fourth slide groove 521.

[0037] When the workpiece needs to be removed, motor 2 drives turntable 3 to rotate, roller 613 moves along protrusion 7, roller 613 pushes lifting rod 612 upward, lifting rod 612 drives lifting plate 610 upward, thereby disengaging from the locking of groove 65, allowing push rod 63 to move, and then pushes the workpiece towards the center of turntable 3. The workpiece drives baffle 511 to move, baffle 511 drives first fixed plate 513 to move through rack 512, first fixed plate 513 drives positioning pin through arc hole 514. When the positioning pin 515 moves upward, since the upper end intersection of the fourth slide groove 521 and the third slide groove 520 is located on the side close to the second slide groove 519, it is guided by the upper edge of the fourth slide groove 521 when the positioning pin 515 moves upward, thereby causing the positioning pin 515 to move along the fourth slide groove 521. Then, under the push of the first spring 525, the positioning pin 515 moves along the fifth slide groove 522. The first spring 525 pushes the first fixing plate 513 to move, and the first fixing plate 513 pushes the rack 512 to move.

[0038] The rack 512 drives the gear 52 to rotate, the gear 52 drives the shaft 51 to rotate, thereby causing the sliding sleeve 53 to move inward, driving the gripper head 57 and the third connecting rod 56 to open outward. At the same time, the second spring 66 pushes the retaining ring 64 to move, the retaining ring 64 drives the push rod 63 to move, and the push rod 63 pushes the workpiece out.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An automatic trigger-type positioning device for metal processing, comprising a base (1), characterized in that: A motor (2) is fixedly connected inside the base (1), a turntable (3) is fixedly connected to the output end of the motor (2), several outer shells (4) are fixedly connected to the base (1), a positioning mechanism (5) is fixedly connected inside the outer shell (4), a pop-out mechanism (6) is fixedly connected inside the outer shell (4), a protrusion (7) is fixedly connected to the upper surface of the base (1), and several foot pads (8) are fixedly connected to the lower end of the base (1). The positioning mechanism (5) includes a pair of rotating shafts (51) rotatably connected inside the housing (4). Both ends of the pair of rotating shafts (51) are provided with threads in opposite directions. Both ends of the rotating shafts (51) are threadedly connected to a sliding sleeve (53). A first connecting rod (54) is rotatably connected to the sliding sleeve (53). A second connecting rod (55) is rotatably connected to the end of the first connecting rod (54) away from the rotating shaft (51). A gripper head (57) is rotatably connected to the end of the second connecting rod (55) away from the first connecting rod (54). A third connecting rod (56) is rotatably connected to the gripper head (57).

2. The automatic trigger-type positioning device for metal processing according to claim 1, characterized in that, The third link (56) is rotatably connected to a fixed frame (59) at the end away from the gripper head (57). A fixed column (510) is fixedly connected to the fixed frame (59). The fixed column (510) is fixedly connected to the outer shell (4). Arc-shaped links (58) are rotatably connected to both ends of the fixed frame (59). The end of the arc-shaped link (58) away from the fixed frame (59) is rotatably connected to the second link (55). A gear (52) is fixedly connected to the rotating shaft (51).

3. The automatic trigger-type positioning device for metal processing according to claim 2, characterized in that, A pair of second fixing plates (517) are fixedly connected inside the outer shell (4). A third fixing plate (523) is fixedly connected to both sides of the second fixing plate (517). A first sliding rod (524) is fixedly connected to the third fixing plate (523). A limiting block (527) is fixedly connected to the end of the first sliding rod (524) away from the third fixing plate (523). A first spring (525) is provided on the outer sleeve of the first sliding rod (524). A fourth fixing plate (526) is slidably connected to the end of the first sliding rod (524) away from the third fixing plate (523).

4. The automatic trigger-type positioning device for metal processing according to claim 3, characterized in that, A first fixing plate (513) is fixedly connected to the fourth fixing plate (526). An arc-shaped hole (514) is provided on the first fixing plate (513). A positioning pin (515) is slidably connected through the arc-shaped hole (514). A pair of limiting plates (516) are fixedly connected to the positioning pin (515). The first fixing plate (513) is located between the pair of limiting plates (516). A first sliding groove (518), a second sliding groove (519), a third sliding groove (520), a fourth sliding groove (521), and a fifth sliding groove (522) are provided on the second fixing plate (517). The positioning pin (515) is fixedly connected to the first fixing plate (513). A sliding groove (518), a second sliding groove (519), a third sliding groove (520), a fourth sliding groove (521), and a fifth sliding groove (522) are slidably connected. A rack (512) is fixedly connected to one end of the first fixed plate (513) away from the second fixed plate (517). A baffle (511) is fixedly connected to one end of the rack (512) away from the first fixed plate (513). The gear (52) and the first fixed plate (513) mesh with each other. A first anti-slip rubber strip (528) is fixedly connected to the inner side of the third connecting rod (56). A second anti-slip rubber strip (529) is fixedly connected to the inner side of the gripper head (57).

5. The automatic trigger-type positioning device for metal processing according to claim 4, characterized in that, The pop-out mechanism (6) includes a fifth fixed plate (61) fixedly connected inside the outer shell (4). A second slide rod (62) is slidably connected through the fifth fixed plate (61). A groove (65) is provided on the second slide rod (62). A second spring (66) is sleeved on the second slide rod (62). One end of the second spring (66) is fixedly connected to the fifth fixed plate (61). A retaining ring (64) is fixedly connected to the end of the second spring (66) away from the fifth fixed plate (61). A push rod (63) is fixedly connected to the end of the retaining ring (64) away from the second slide rod (62).

6. The automatic trigger-type positioning device for metal processing according to claim 5, characterized in that, The push rod (63) passes through the sliding connection baffle (511), the second slide rod (62) passes through the sliding connection lifting plate (610), the lifting plate (610) has a through hole (611), and both ends of the lifting plate (610) are slidably connected to a third slide rod (68). The upper end of the third slide rod (68) is fixedly connected to a top plate (67), and the top plate (67) is fixedly connected to the outer shell (4).

7. The automatic trigger-type positioning device for metal processing according to claim 6, characterized in that, The third slide rod (68) is fitted with a third spring (69). The lower end of the lifting plate (610) is fixedly connected to a lifting rod (612). The lower end of the lifting rod (612) is rotatably connected to a roller (613). The roller (613) and the protrusion (7) are mutually pressed and engaged. The second slide rod (62) passes through the sliding connection through hole (611). The groove (65) and the lifting plate (610) are mutually engaged and engaged.

8. The automatic trigger-type positioning device for metal processing according to claim 4, characterized in that, The first slide (518), the second slide (519), the third slide (520), the fourth slide (521) and the fifth slide (522) are connected. The first slide (518) is inclined. The third slide (520) and the fourth slide (521) are V-shaped. One end of the first spring (525) is fixedly connected to the third fixing plate (523). The end of the first spring (525) away from the third fixing plate (523) is fixedly connected to the fourth fixing plate (526).

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