Discharging centralizing device applied to combined screws

Abstract

A discharging centralizing device applied to combined screws relates to the technical field of screw assembling equipment and comprises a screw jacking mechanism matched with a screw discharging machine and used for jacking the discharged combined screws from the bottom, so that a clamping space is reserved for the combined screws; and the screw clamping mechanism is matched with the screw jacking mechanism to clamp the clamping space of the combined screw, so that the combined screw is kept in a vertical feeding state. According to the screw conveying device, the production efficiency is improved, the stability and the accuracy of the screws in the conveying process are ensured, and the product quality is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw assembly equipment, in particular to a discharging and straightening device used for combined screws. Background Art

[0002] With the continuous development of industrial automation technology, the application of automatic screw feeders in the manufacturing industry is becoming more and more extensive. This type of equipment uses automation to achieve fast and accurate feeding of screws, effectively replacing traditional manual operations, significantly improving production efficiency and reducing labor costs. Especially on production lines that require a large number of fastening screws, the role of automatic screw feeders is particularly prominent. For short-head screws (such as M4*8 specifications), factories generally adopt the "attached material" locking style. In this style, the screws and the matching assemblies (including spring washers and flat washers, refer to the attached drawings in the instruction manual) are connected. Figure 1 ) together form a complete fastening unit. However, due to the 3-4mm of free space (i.e. clamping space) between the screw shank and the bottom surface of the head, this feature poses a challenge to the automatic feeding and locking process.

[0003] In existing automatic screw feeding systems, screws are first neatly arranged into guide grooves by a feeder, then arranged in a row and fed to the loading station via a turntable. The locking mechanism then uses a vacuum nozzle to draw the screws into a contoured sleeve. The screwdriver bit is then automatically aligned with the groove in the screw head for tightening. This process works well for feeding and tightening standard screws, but it encounters problems when handling combination screws.

[0004] The main problems of feeding and locking combination screws

[0005] The discharge is not vertical: Due to the presence of spring washers and flat washers in the combination screws, it is difficult for the screws to remain vertical during the discharge process, which increases the difficulty of subsequent material removal and tightening.

[0006] The retrieving mechanism cannot clamp accurately: Due to the effect of gravity, the retrieving mechanism has difficulty in accurately clamping the combination screw within the clamping space. This causes the screw to be easily skewed during the retrieving process, affecting the subsequent locking effect.

[0007] The contoured vacuum nozzle cannot correct the angle: Even if the screw is sucked by the vacuum nozzle, the contoured vacuum nozzle cannot effectively correct the angle of the screw due to its skewed state. This further aggravates the problem of poor screw tightening.

[0008] Production line alarms and product damage: Due to the increasing rate of screw tightening defects, the production line frequently issues alarm signals. In severe cases, crooked screws may even squeeze the product, causing damage. Utility Model Content

[0009] The utility model proposes a discharging and straightening mechanism applied to a combination screw, so as to solve the technical problems pointed out in the background technology.

[0010] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0011] A discharge and straightening device for a combination screw, comprising:

[0012] The screw lifting mechanism cooperates with the screw discharger to lift the discharged combined screws from the bottom, so that the combined screws reserve clamping space;

[0013] The screw clamping mechanism cooperates with the screw lifting mechanism to clamp the clamping space of the combined screw so that the combined screw maintains a vertical feeding state.

[0014] Furthermore, the screw clamping mechanism includes a fixed vertical plate and a transmission cylinder horizontally fixed on the side of the fixed vertical plate. The gas rod of the transmission cylinder is fixedly connected to the transmission guide plate. The transmission guide plate is an L-shaped structure. A pair of clamping cylinders are fixedly arranged at the top position of the horizontal plate of the transmission guide plate. The two clamping cylinders drive the screw clamps to perform a clamping action of moving toward or away from each other.

[0015] Furthermore, a concave structure for clamping is formed on one side opposite to the other of the two screw clamping jaws.

[0016] Furthermore, the screw lifting mechanism includes a fixed horizontal plate, which is fixedly arranged below the output discharge disk of the screw discharger. A vertical frame is fixedly provided on the fixed horizontal plate, and a lifting rod is vertically slidably connected to the vertical frame. A screw lifting rod is fixedly provided on the upper end of the lifting rod. The screw lifting rod is opposite to the screw located on the output discharge disk, and the lower end of the lifting rod cooperates with the transmission assembly.

[0017] Furthermore, the transmission assembly includes a guide slide member fixedly arranged on the fixed horizontal plate, the slide direction of the guide slide member is the same as the telescopic direction of the transmission cylinder, the sliding guide on the guide slide member is connected with a jacking slide, the jacking slide and the vertical plate side of the transmission guide plate are connected through a transmission block, and the gas rod of the transmission cylinder is extended and drives the jacking slide to slide in the guide slide member; the transmission assembly also includes a transmission sleeve fixed to the lower end of the lifting rod, and the side of the transmission sleeve is rotatably connected to a transmission roller, and the lower end of the transmission roller is transmission-matched with the jacking slide.

[0018] Furthermore, the slide groove in the jacking slide groove is a slope-shaped structure, an I-shaped sliding block is provided at the bottom of the jacking slide groove, and the slide groove of the guide slide groove member is correspondingly provided as an I-shaped structure matching therewith.

[0019] Furthermore, a return spring is sleeved on the lifting rod, the upper end of the return spring contacts the bottom side of the vertical frame, and the lower end contacts the transmission shaft sleeve.

[0020] Furthermore, a guide rod is vertically provided on one side of the screw pushing rod, and the guide rod cooperates with the vertical guide of the vertical frame.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This utility model utilizes a discharge and straightening device comprising a screw lifting mechanism and a screw clamping mechanism to achieve automatic lifting, clamping, and vertical feeding of combined screws. The screw lifting mechanism utilizes components such as a transmission cylinder, a lifting chute, and a return spring to achieve smooth lifting and automatic reset of the lifting rod. The screw clamping mechanism uses a clamping cylinder to drive the screw jaws toward or away from each other, accurately clamping the screw and maintaining its vertical position. This utility model not only improves production efficiency but also ensures stability and accuracy during screw feeding, effectively enhancing product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 Schematic diagram of the structure of the combined screw;

[0025] Figure 2 It is a structural diagram of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the screw lifting mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the partial structure of the screw lifting mechanism of the utility model. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] like Figure 2-4 As shown, a discharge and straightening device for a combination screw includes:

[0033] The screw lifting mechanism cooperates with the screw discharger to lift the discharged combination screw 6 from the bottom, so that the combination screw 6 reserves a clamping space;

[0034] The screw clamping mechanism cooperates with the screw lifting mechanism to clamp the clamping space of the combination screw 6 so that the combination screw 6 maintains a vertical feeding state.

[0035] Specifically, as shown in the figure, the screw clamping mechanism includes a fixed vertical plate 1 and a transmission cylinder 2 horizontally fixed to the side of the fixed vertical plate 1. The gas rod of the transmission cylinder 2 is fixedly connected to the transmission guide 3, which has an L-shaped structure. A pair of clamping cylinders 4 are fixedly installed at the top of the horizontal plate of the transmission guide 3. The two clamping cylinders 4 drive the screw clamps 5 to move toward or away from each other. The two screw clamps 5 have concave structures formed on the opposite sides for clamping.

[0036] In the initial state, the air rod of the transmission cylinder 2 is in a retracted state, and the transmission guide 3 and the clamping cylinder 4 and screw clamp 5 thereon are all in their initial positions. At this time, the concave structure of the screw clamp 5 is in an open state and does not clamp the screw. When the screw needs to be clamped, the air rod of the transmission cylinder 2 begins to extend, pushing the transmission guide 3 and the components thereon to move toward the position of the screw. When the screw clamp 5 reaches the clamping space of the screw, the clamping cylinder 4 starts working, and its air rod extends, driving the two screw clamps 5 to move towards each other. As the screw clamp 5 closes, the concave structure tightly clamps the clamping space of the screw, achieving the clamping of the screw. After the screw is clamped, the transmission cylinder 2 continues to work, driving the entire clamping mechanism (including the screw) to move to the next process or equipment, waiting for the vacuum suction nozzle to suck the screw into the contoured sleeve. In this process, due to the tight clamping of the screw clamp 5 and the design of the concave structure, the screw always remains in a vertical state, achieving the effect of straightening. Then, the air rod of the transmission cylinder 2 contracts, driving the clamping mechanism to return to the initial position, ready for the next round of operation.

[0037] Specifically, as shown in the figure, the screw lifting mechanism includes a fixed horizontal plate 7, which is fixedly arranged below the output discharge disk of the screw discharge machine. A vertical frame 11 is fixedly provided on the fixed horizontal plate 7, and a lifting rod 12 is vertically slidably connected to the vertical frame 11. A screw lifting rod 13 is fixedly provided on the upper end of the lifting rod 12. The screw lifting rod 13 is opposite to the screw 6 located on the output discharge disk, and the lower end of the lifting rod 12 cooperates with the transmission assembly. The transmission assembly includes a guide chute member 8 fixedly mounted on the fixed horizontal plate 7. The chute direction of the guide chute member 8 is the same as the telescopic direction of the transmission cylinder 2. A lifting chute 10 is connected to the sliding guide of the guide chute member 8. The lifting chute 10 is connected to the side of the vertical plate of the transmission guide plate 3 through a transmission block 9. The gas rod of the transmission cylinder 2 extends and drives the lifting chute 10 to slide in the guide chute member 8. The transmission assembly also includes a transmission sleeve 14 fixed to the lower end of the lifting rod 12. The side of the transmission sleeve 14 is rotatably connected to a transmission roller 15. The lower end of the transmission roller 15 is in transmission cooperation with the lifting chute 10. The chute in the lifting chute 10 is a sloped structure. An I-shaped slider 101 is provided at the bottom of the lifting chute 10. The chute of the guide chute member 8 is correspondingly set to an I-shaped structure that cooperates with it.

[0038] In the initial state, the lifting rod 12 is in the lowest position, and the screw jacking rod 13 does not contact the screw 6. The air rod of the transmission cylinder 2 is in a retracted state, and the jacking chute 10 is in the initial position in the chute of the guide chute part 8. When the jacking screw is needed, the air rod of the transmission cylinder 2 begins to extend. Since the transmission block 9 connects the jacking chute 10 to the side of the vertical plate of the transmission guide 3, the extension of the transmission cylinder 2 will simultaneously drive the transmission guide 3 (and the clamping mechanism thereon) and the jacking chute 10 to move together. As the transmission cylinder 2 continues to extend, the jacking chute 10 slides in the chute of the guide chute part 8. Since the chute of the jacking chute 10 is a sloped structure, when the jacking chute 10 slides, its bottom will gradually rise. The lower end of the transmission roller 15 is in transmission cooperation with the sloped surface of the jacking chute 10. As the lifting chute 10 rises, the transmission roller 15 rolls along the slope and drives the lifting rod 12 to rise vertically on the vertical frame 11 through the transmission shaft sleeve 14. As the lifting rod 12 rises, the screw ejector rod 13 gradually rises until it contacts the screw 6 and lifts it from the bottom. At this time, a clamping space is reserved below the screw 6 to facilitate the subsequent operation of the clamping mechanism. When the screw is clamped and removed by the clamping mechanism, the air rod of the transmission cylinder 2 begins to retract. Due to the cooperation of the transmission block 9 and the transmission roller 15, the lifting chute 10 gradually descends along the chute of the guide chute member 8, while driving the lifting rod 12 and the screw ejector rod 13 to return to their initial positions.

[0039] Specifically, as shown in the figure, a return spring 16 is sleeved on the lifting rod 12. The upper end of the return spring 16 contacts the bottom side of the vertical frame 11, and the lower end contacts the transmission shaft sleeve 14. A guide rod 17 is vertically downwardly provided on one side of the screw lifting rod 13. The guide rod 17 cooperates with the vertical guidance of the vertical frame 11. When the clamping mechanism completes the clamping and removes the screw, the air rod of the transmission cylinder 2 begins to retract. As the air rod of the transmission cylinder 2 retracts, the lifting chute 10 slides and descends in the guide chute member 8, while the transmission roller 15 rolls in the opposite direction along the slope surface. During this process, the return spring 16 gradually releases its elastic force, pushing the transmission shaft sleeve 14 and the lifting rod 12 downward. Under the guidance of the vertical frame 11, the guide rod 17 ensures the vertical descent of the screw lifting rod 13 until it returns to its initial position.

[0040] This utility model utilizes a discharge and straightening device comprising a screw lifting mechanism and a screw clamping mechanism to achieve automatic lifting, clamping, and vertical feeding of combined screws. The screw lifting mechanism utilizes components such as a transmission cylinder, a lifting chute, and a return spring to achieve smooth lifting and automatic reset of the lifting rod. The screw clamping mechanism, on the other hand, uses a clamping cylinder to drive the screw jaws toward or away from each other, accurately clamping the screw and maintaining its vertical position. This technical solution not only improves production efficiency but also ensures stability and accuracy during screw feeding, effectively enhancing product quality.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0042] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A discharge and straightening device for a combination screw, characterized in that: include: The screw lifting mechanism cooperates with the screw discharger to lift the discharged combined screws from the bottom, so that the combined screws reserve clamping space; The screw clamping mechanism cooperates with the screw lifting mechanism to clamp the clamping space of the combined screw so that the combined screw maintains a vertical feeding state.

2. A discharge and straightening device for combination screws according to claim 1, characterized in that: The screw clamping mechanism includes a fixed vertical plate and a transmission cylinder horizontally fixed to the side of the fixed vertical plate. The gas rod of the transmission cylinder is fixedly connected to the transmission guide plate. The transmission guide plate is an L-shaped structure. A pair of clamping cylinders are fixedly arranged at the top position of the horizontal plate of the transmission guide plate. The two clamping cylinders drive the screw clamps to perform a clamping action of moving toward or away from each other.

3. A discharge and straightening device for combination screws according to claim 2, characterized in that: A concave structure for clamping is formed on one side opposite to the other of the two screw clamping jaws.

4. The discharge and straightening device for combination screws according to claim 2, characterized in that: The screw lifting mechanism includes a fixed horizontal plate, which is fixedly arranged below the output discharge disk of the screw discharger. A vertical frame is fixedly provided on the fixed horizontal plate, and a lifting rod is vertically slidably connected to the vertical frame. A screw lifting rod is fixedly provided on the upper end of the lifting rod. The screw lifting rod is opposite to the screw located on the output discharge disk, and the lower end of the lifting rod cooperates with the transmission assembly.

5. The discharge and straightening device for combined screws according to claim 4, characterized in that: The transmission assembly includes a guide slide member fixedly arranged on the fixed horizontal plate, the slide direction of the guide slide member is the same as the extension and contraction direction of the transmission cylinder, the sliding guide on the guide slide member is connected with a jacking slide, the jacking slide and the vertical plate side of the transmission guide plate are connected through a transmission block, and the gas rod of the transmission cylinder is extended and drives the jacking slide to slide in the guide slide member; the transmission assembly also includes a transmission shaft sleeve fixed to the lower end of the lifting rod, the side of the transmission shaft sleeve is rotatably connected to a transmission roller, and the lower end of the transmission roller is transmission-matched with the jacking slide.

6. The discharge and straightening device for combined screws according to claim 5, characterized in that: The slide groove in the lifting slide groove is a slope-shaped structure, and an I-shaped sliding block is provided at the bottom of the lifting slide groove. The slide groove of the guide slide groove member is correspondingly provided as an I-shaped structure matched therewith.

7. The discharge and straightening device for combined screws according to claim 6, characterized in that: A return spring is sleeved on the lifting rod, the upper end of the return spring contacts the bottom side of the vertical frame, and the lower end contacts the transmission shaft sleeve.

8. The discharge and straightening device for combined screws according to claim 7, characterized in that: A guide rod is vertically arranged downward on one side of the screw pushing rod, and the guide rod cooperates with the vertical guide of the vertical frame.

Images