Circulating positioning independent station platform

Abstract

The utility model belongs to the technical field of automatic processing equipment, concretely relates to a circulating positioning independent station platform, including support, two optical axis guide rails are arranged in length direction parallelly on the support top, rectangular slide plate reciprocating sliding is along the guide rail length direction through the bottom setting rolling guide component, still be provided with circulating positioning mechanism on the station platform, circulating positioning mechanism includes the cross rail support beam between two optical axis guide rails, drive assembly and positioning structure, cross rail support beam fixed mounting on support and extension direction perpendicular to optical axis guide rail, positioning structure includes the fitting piece of setting drive assembly output end and the positioning piece of setting slide plate bottom, drive assembly drives fitting piece removal, makes fitting gap and positioning piece interengagement with each other to limit the displacement of slide plate along the direction of optical axis guide rail.

Description

Technical Field

[0001] This utility model relates to the field of automated processing equipment technology, specifically to a cyclic positioning independent workstation platform. Background Technology

[0002] In footwear manufacturing and similar processing industries, conveyor belts or sliding platforms are typically used to move workpieces (such as shoe uppers) between different workstations in order to achieve assembly line operations. Existing circulating positioning platforms mostly use simple linear guide rails with slider structures. After the slider moves to the designated workstation, it is often fixed by friction braking, electromagnetic chucks, or simple pneumatic clamps.

[0003] However, existing technologies have the following significant drawbacks: Low positioning accuracy: Traditional friction braking or electromagnetic adsorption methods are easily affected by factors such as wear on the contact surface and oil stains, resulting in poor repeatability and positioning accuracy. This makes it impossible to guarantee the high precision requirements of processes such as cutting and printing, and easily leads to defective products.

[0004] Insufficient locking reliability: When switching from high-speed motion to a stationary state, traditional structures cannot instantly eliminate the degree of freedom of the slide along the guide rail, which is prone to slight vibration or displacement during operation, affecting the processing quality.

[0005] Complex structure and high maintenance cost: Some solutions require complex mechanical fixtures to hold the workpiece, which increases the size of the equipment and the failure rate; or they rely on expensive servo motors for closed-loop positioning, which is costly.

[0006] Lack of anti-detachment design: In long-stroke reciprocating motion, if there is no effective anti-detachment mechanism, the skateboard is prone to rush off the guide rail due to inertia, causing equipment damage or even safety accidents.

[0007] Therefore, there is an urgent need to develop a simple, precise, reliable locking, and anti-detachment cyclic positioning independent workstation platform to meet the needs of high-precision and high-efficiency automated production. Utility Model Content

[0008] A cyclic positioning independent workstation platform is designed to solve the problems of low positioning accuracy, unstable locking, and lack of effective anti-detachment protection in existing technologies during cyclic movement.

[0009] To achieve the aforementioned objective, this utility model provides a cyclic positioning independent workstation platform, comprising a support frame; two optical axis guide rails are arranged parallel to each other along the length direction above the support frame; a rectangular slide plate slides back and forth along the length direction of the guide rails via rolling guide components disposed at its bottom, the rolling guide components being disposed at the bottom of the four corners of the slide plate; the workstation platform is also provided with a cyclic positioning mechanism, the cyclic positioning mechanism comprising a cross-rail support beam spanning between the two optical axis guide rails, a drive component, and a positioning structure; the cross-rail support beam is fixedly installed on the support frame and extends perpendicularly to the optical axis guide rails; the cross-rail support beam is located below the optical axis guide rails; The drive assembly is mounted on the cross-rail support beam, and its output end reciprocates in a direction perpendicular to the optical axis guide rail. The positioning structure includes a mating part disposed at the output end of the drive assembly and a positioning part disposed at the bottom of the slide plate. The mating part has a mating notch, and the positioning part has a planar structure for embedding into the mating notch. The drive assembly drives the mating part to move, so that the mating notch and the planar structure fit together to limit the displacement of the slide plate along the optical axis guide rail direction.

[0010] Furthermore, the rolling guide assembly is a bearing, and a U-shaped guide groove is provided on the side of the bearing. The opening width of the U-shaped guide groove is greater than the outer diameter of the optical axis guide rail, and the radius of the bottom arc surface of the U-shaped guide groove is adapted to the outer radius of the optical axis guide rail, so that the rolling bearing forms a clearance fit on the optical axis guide rail to allow free rolling, while restricting radial displacement.

[0011] Furthermore, the rolling guide assembly is a bearing, and the side of the bearing is provided with a U-shaped guide groove that is adapted to the optical axis guide rail.

[0012] Furthermore, the mating notch of the mating component is one of a V-groove, a U-groove, or a semi-circular groove, and the planar structure of the positioning component fits tightly against the inner wall of the notch, so that when the mating component is inserted, the axial gap along the optical axis guide rail direction is eliminated.

[0013] Furthermore, the positioning element is a rolling bearing.

[0014] Furthermore, the drive component is a telescopic cylinder, the cylinder body of which is fixed to the cross-rail support beam by a mounting plate; the cross-rail support beam is also equipped with a photoelectric sensor for detecting the positioning status of the mating parts, and the signal output terminal of the photoelectric sensor is connected to the control system.

[0015] Furthermore, a positioning block is provided at the bottom of the skateboard, and adjacent skateboards abut against each other through the positioning block.

[0016] Furthermore, the pushing device includes two upright plates on both sides, a pushing plate between the two upright plates, and docking shafts corresponding to the two optical axis guide rails are symmetrically arranged on both sides of the pushing plate. Shoulder sleeves are movably sleeved on the outer side of the docking shafts.

[0017] Furthermore, a buffer spring is provided on the outer side of the docking shaft, and a positioning structure and a push motor are provided at the bottom of the push plate. A push rod is provided at the output end of the push motor, and the end of the push rod away from the motor matches the positioning block.

[0018] Furthermore, two spiral screws and a guide mechanism are symmetrically arranged opposite each other on the two upright plates. A motor for driving the spiral screws to rotate is provided at the bottom of the lifting plate. The top of the spiral screws is fixedly connected to the upright plates through a fixing plate. The guide mechanism includes two symmetrically arranged guide rods.

[0019] The technical solution provided by this utility model has at least the following technical effects: High-precision geometric interlocking positioning: Through the mechanical interlocking of "fitting notch" and "planar structure", rigid locking is achieved by utilizing the complementarity of geometric shapes, which completely eliminates the degree of freedom of displacement along the guide rail direction, avoids the micro-motion error of traditional friction positioning, and ensures machining accuracy.

[0020] Stable and reliable cyclic movement: The four independent rolling guide components at the corners, combined with the U-shaped guide groove design, not only ensure the smooth sliding of the slide along the optical axis guide rail with low resistance, but also prevent the risk of derailment through the groove limit, thus achieving stable operation under long stroke.

[0021] Compact structure and low cost: The cross-rail support beam layout makes the drive force symmetrical, and precise positioning can be achieved without a complex servo system; pneumatic drive combined with photoelectric feedback reduces equipment cost and energy consumption.

[0022] Multiple safety protections: Combining anti-detachment guide design and contact limit of adjacent skateboards, it effectively prevents the skateboard from accidentally falling off or colliding during high-speed movement, thus improving the overall safety of the equipment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the back structure of the skateboard of this utility model; Figure 3 This is a schematic diagram of the pin positioning structure of this utility model; Figure 4 This is a partially enlarged structural schematic diagram of the present invention; Figure 5 This is a schematic diagram of the pushing device of this utility model; Figure 6 This is a schematic diagram of the side upright plate of the pushing device of this utility model; Key reference numerals in the attached drawings: 10. Bracket; 11. Optical axis guide rail; 20. Slide plate; 21. Positioning component; 22. Rolling guide assembly; 23. Positioning block; 24. Support beam; 241. Telescopic cylinder; 242. Output end; 243. Mating component; 2431. Mating notch; 30. Pushing device; 31. Connecting shaft; 32. Shoulder bushing; 33. Buffer spring; 34. Pushing motor; 35. Pushing rod; 36. Vertical plate; 37. Guide rod; 38. Helical screw; 39. Fixing plate; Detailed Implementation The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] like Figure 1As shown, this embodiment provides a cyclic positioning independent workstation platform, mainly including a support 10, a sliding plate 20, and a cyclic positioning mechanism. The support 10 serves as an integral frame, with two high-precision optical axis guide rails 11 parallel to each other along its length at its top. The rectangular sliding plate 20 serves as a carrier for the workpiece, with rolling guide components 22 installed at each of its four bottom corners. These rolling guide components 22 are specifically industrial-grade roller bearings, each bearing having a precision-machined side with a U-shaped guide groove matching the outer circle shape of the optical axis guide rail 11. The sliding plate 20 is mounted on the two optical axis guide rails 11 via these four bearings, utilizing the rolling characteristics of the bearings to achieve low-friction reciprocating sliding.

[0028] On the surface of the skateboard 20, several workstation intervals are divided according to the processing requirements. Each interval can fix a shoe upper or other workpiece to be processed. To achieve precise positioning of the workstations, the platform is equipped with a cyclic positioning mechanism. The core of this mechanism is a cross-rail support beam 24 spanning between two optical axis guide rails 11. This beam is firmly fixed to the bracket 10 by bolts, and its extension direction is strictly perpendicular to the optical axis guide rails 11. A drive assembly (in this embodiment, a telescopic cylinder 241 with fast response and stable thrust is selected) is installed on the cross-rail support beam 24. The extension and retraction direction of the cylinder's telescopic rod is perpendicular to the running direction of the skateboard 20, and the cross-rail support beam 24 is located below the optical axis guide rails 11.

[0029] A positioning element 21 is provided at a specific position on the bottom of the slide plate 20 (usually located in the center area of ​​the workstation). In this embodiment, the positioning element 21 also adopts a small rolling bearing, and its side is machined into a flat planar structure. A mating element 243 is installed at the end of the telescopic rod of the cylinder, and the mating element 243 has a mating notch 2431. When the slide plate 20 moves to the designated workstation with the conveyor, the control system controls the telescopic cylinder 241 to extend, driving the mating element 243 to move downward / inward. At this time, the edge of the V-groove of the mating element 243 tightly bites the plane of the positioning element 21 on the slide plate 20. Due to the geometric characteristics of the V-groove, the mating element 243 can automatically center and fit tightly, thereby completely locking the degree of freedom of movement of the slide plate 20 along the guide rail direction at the physical level, keeping it absolutely still during cutting, printing and other operations. After the operation is completed, the cylinder retracts, and the slide plate 20 can continue to move to the next workstation.

[0030] like Figure 2As shown, to further optimize the movement performance of the slide plate 20, in this embodiment, the rolling guide component 22 is a bearing, and a U-shaped guide groove is provided on the side of the bearing. This embodiment features a refined design for the U-shaped guide groove of the rolling guide component 22. The opening width of the U-shaped guide groove is set to be slightly larger than the outer diameter of the optical axis guide rail 11 (0.1mm-0.3mm larger) to ensure that the bearing can roll smoothly on the guide rail without jamming. Simultaneously, the radius of the bottom arc surface of the U-shaped groove is precisely matched to the outer radius of the optical axis guide rail 11 (tolerance controlled within ±0.05mm). This design allows the rolling bearing to form a small clearance fit on the guide rail, allowing free rolling motion while restricting the radial displacement of the slide plate 20 in the vertical and lateral directions through the constraint of the groove wall, effectively preventing the slide plate 20 from wobbling and ensuring the straightness and stability of the movement. In practical applications, deep groove ball bearings or cylindrical roller bearings can also be selected; this embodiment does not limit this choice.

[0031] like Figure 3 As shown, this embodiment specifically defines the mating method of the mating notch 2431 and the positioning element 21 to address the accuracy issue of the positioning structure. The notch shape of the mating element 243 can be one of a V-groove, a U-groove, or a semi-circular groove. Among them, the V-groove is particularly suitable for high-precision applications due to its self-centering characteristics; the U-groove is insensitive to installation errors. Regardless of the shape used, the key is that the planar structure of the positioning element 21 must fit tightly against the inner wall of the notch. When the mating element 243 is inserted, there is no axial gap between the two. This "hard contact" mechanical interlocking method completely eliminates the uncertainty of frictional positioning, ensuring that the slide plate 20 will not experience any micro-movement when subjected to processing cutting forces, thereby guaranteeing the accuracy of the pattern cutting or printing on the shoe upper.

[0032] like Figure 3 As shown in the figure, the positioning element 21 in this embodiment is explicitly a rolling bearing. The advantage of using a rolling bearing as the positioning element 21 is that it has high side flatness, good wear resistance, and when engaged with the mating element 243, if there is a slight angular deviation, the rolling characteristics of the bearing can provide a certain buffering effect, preventing hard impact damage to the parts. Furthermore, to further improve the level of automation, this embodiment also integrates a photoelectric sensor on the cross-rail support beam 24. This sensor is installed beside the movement path of the mating element 243 to detect in real time whether the mating element 243 has fully extended into position. When the sensor detects that the mating element 243 has reached the predetermined position, it sends an electrical signal to the control system. The machining program can only be started after confirmation of locking; if it has not reached the predetermined position, the system alarms and stops the operation to prevent misoperation. The signal output terminal 242 of the photoelectric sensor is directly connected to the PLC or industrial control computer control system, forming a complete closed-loop feedback.

[0033] like Figure 2As shown, in actual production lines, multiple slide plates 20 often need to work in series. In this embodiment, a positioning block 23 is added to the bottom edge of the slide plate 20. When two slide plates 20 are arranged sequentially on the track, the tail positioning block 23 of the preceding slide plate 20 abuts against the front positioning block 23 of the following slide plate 20. This design not only limits the relative distance between the slide plates 20 and maintains a constant cycle distance, but more importantly, it plays a role in mutual restraint to a certain extent, preventing a single slide plate 20 from being excessively squeezed or deviating from the normal sequence due to abnormal power. At the same time, combined with the aforementioned U-shaped guide groove design, the entire system has extremely high anti-interference capability and anti-detachment safety during long-distance operation.

[0034] Please refer to Figures 4-6 In this embodiment, a pushing device 30 is provided at both ends of the conveying track. The pushing device 30 includes two side uprights 36, and a pushing plate is provided between the two uprights 36. The two sides of the pushing plate are symmetrically provided with docking shafts 31 corresponding to the two optical axis guide rails 11. The outer side of the docking shaft 31 is movably fitted with a shouldered bushing 32. The outer side of the docking shaft 31 is also provided with a buffer spring 33. The bottom of the pushing plate is also provided with a positioning structure and a pushing motor 34. The output end 242 of the pushing motor 34 is provided with a pushing rod 35. The end of the pushing rod 35 away from the motor matches the positioning block 23. The two uprights 36 are symmetrically provided with two spiral screws 38 and a guide mechanism. The bottom of the lifting plate is provided with a motor for driving the spiral screws 38 to rotate. The top end of the spiral screws 38 is fixedly connected to the uprights 36 through a fixing plate 39.

[0035] In operation, adjacent sliders in the upper and lower tracks abut against each other via positioning blocks 23. A sliding plate 20 (referred to as the starting sliding plate 20 for ease of description) is fixed to the pushing device 30 at the beginning of the conveying track via a positioning structure. After the platform starts working, the pushing devices 30 at both ends first drive the pushing plates to rise and fall via the motor at the bottom, so that the docking shafts 31 on both sides align with the optical axis guide rail 11 of the upper conveying track. Then, the pushing motor 34 drives the pushing rod 35 to push the starting sliding plate 20 into the upper conveying track. At this time, the starting sliding plate 20 abuts against the sliding plate 20 in the upper conveying track. As the pushing rod 35 extends... The initial slide plate 20 is fully pushed into the upper conveyor track. At this time, the slide plate 20 at the tail end of the upper conveyor track is pushed into the docking shaft 31 of the tail push device 30, and the slide plate 20 is positioned and fixed by the positioning structure. The push plate of the tail push device 30 descends, so that the docking shafts 31 on both sides dock with the optical axis guide rail 11 of the lower conveyor track, and the slide plate 20 is pushed into the lower conveyor track by the push rod 35. At the same time, the push plate of the head push device 30 also descends to the lower conveyor track to receive the slide plate 20 pushed out from the lower conveyor track and rise to the upper conveyor track. Thus, one cycle is completed.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cyclic positioning independent workstation platform, comprising a support frame (10); characterized in that: The bracket (10) is provided with a double-layer conveying track arranged in parallel on the upper and lower layers. The conveying track includes two optical axis guide rails (11) arranged in parallel at intervals. The rectangular slide plate (20) slides back and forth along the length of the guide rail via the rolling guide assembly (22) set at its bottom. The rolling guide assembly (22) is set at the bottom of the four corners of the slide plate (20). The rolling guide assembly (22) is a bearing. The side of the bearing is provided with a U-shaped guide groove. The opening width of the U-shaped guide groove is greater than the outer diameter of the optical axis guide rail (11). The radius of the arc surface of the bottom of the U-shaped guide groove is matched with the outer radius of the optical axis guide rail (11), so that the rolling bearing forms a clearance fit on the optical axis guide rail (11) to allow free rolling, while restricting radial displacement. The workstation platform is also equipped with a cyclic positioning mechanism, which includes a cross-rail support beam (24) spanning between the two optical axis guide rails (11), a drive component, and a positioning structure; the cross-rail support beam (24) is fixedly installed on the bracket (10) and extends perpendicularly to the optical axis guide rail (11), and the cross-rail support beam (24) is located below the optical axis guide rail (11); The drive assembly is mounted on the cross-rail support beam (24), and its output end (242) reciprocates in a direction perpendicular to the optical axis guide rail (11); The positioning structure includes a mating part (243) disposed at the output end (242) of the drive component and a positioning part (21) disposed at the bottom of the slide plate (20). The mating part (243) has a mating notch (2431), and the positioning part (21) has a planar structure for embedding into the mating notch (2431). The drive component drives the mating part (243) to move, so that the mating notch (2431) and the planar structure fit together to limit the displacement of the slide plate (20) along the optical axis guide rail (11). The two ends of the optical axis guide rail are provided with a pushing device for driving the slide plate (20) to move cyclically along the length direction between the upper and lower conveying tracks.

2. The cyclic positioning independent workstation platform as described in claim 1, characterized in that: The mating notch (2431) of the mating part (243) is one of a V-groove, a U-groove or a semi-circular groove. The planar structure of the positioning part (21) fits tightly against the inner wall of the notch, so that when the mating part (243) is inserted, the axial gap along the optical axis guide rail (11) is eliminated.

3. The cyclic positioning independent workstation platform as described in claim 2, characterized in that: The positioning element (21) is a rolling bearing.

4. The cyclic positioning independent workstation platform as described in claim 1, characterized in that: The drive component is a telescopic cylinder (241), whose cylinder body is fixed on the cross-rail support beam (24) by a mounting plate; the cross-rail support beam (24) is also provided with a photoelectric sensor for detecting the position of the mating part (243), and the signal output terminal (242) of the photoelectric sensor is connected to the control system.

5. The cyclic positioning independent workstation platform as described in claim 1, characterized in that: The bottom of the slide plate (20) is also provided with a positioning block (23), and two adjacent slide plates (20) abut against each other through the positioning block (23).

6. The cyclic positioning independent workstation platform as described in claim 1, characterized in that: The pushing device (30) includes two side uprights (36), and a pushing plate is provided between the two uprights (36) for lifting. The two sides of the pushing plate are symmetrically provided with docking shafts (31) corresponding to the two optical axis guide rails (11), and the outer side of the docking shaft (31) is movably fitted with a shouldered bushing (32).

7. The cyclic positioning independent workstation platform as described in claim 6, characterized in that: A buffer spring (33) is also provided on the outside of the docking shaft (31), and a positioning structure and a push motor (34) are also provided at the bottom of the push plate. A push rod (35) is provided at the output end (242) of the push motor (34), and the end of the push rod (35) away from the motor matches the positioning block (23).

8. The cyclic positioning independent workstation platform as described in claim 1, characterized in that: Two vertical plates (36) are symmetrically arranged with two helical screws (38) and a guide mechanism. The bottom of the lifting plate is provided with a motor for driving the helical screws (38) to rotate. The top of the helical screws (38) is fixedly connected to the vertical plate (36) through a fixing plate (39). The guide mechanism includes two symmetrically arranged guide rods (37).

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