An intelligent rapid grooving device and method for screw production

By coordinating the design of conveyor belts and multi-station fixtures with milling cutters, continuous automated machining of screws was achieved, solving the problem of low efficiency of existing equipment, improving machining accuracy and efficiency, and reducing labor intensity.

CN120190442BActive Publication Date: 2025-10-28FOSHAN ZHONGLISHENG PRECISION MFG CO LTD
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Patent Information

Application Number
CN202510547022.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2025-10-28
Estimated Expiration
2045-04-28

AI Technical Summary

Technical Problem

Existing screw processing equipment is inefficient in batch processing, especially in continuous processing scenarios, where the efficiency of the combination between the circular workstation and the milling cutter needs to be improved.

Method used

The design incorporates a conveyor belt and multi-station fixture, combined with a magnetic rotating structure and an elastic clamping structure. The continuous automated processing of screw raw materials is achieved through the first and second reversing frames. The linkage design of the first, second, and third milling cutters enables precise processing of slotted grooves, cross grooves, and chamfers.

Benefits of technology

It significantly improves the efficiency and precision of screw processing, reduces labor intensity, avoids human error, and ensures the continuity and accuracy of processing.

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Abstract

This invention relates to the field of milling technology, specifically disclosing an intelligent rapid grooving device and method for screw production. The device includes a conveyor belt, a milling device, and a fixture. The fixture has two clamping blocks, and the outer walls of the two clamping blocks have reversing arms. The fixture is used to clamp the screw material. A first reversing frame and a second reversing frame are respectively installed at both ends of the conveyor belt. This invention achieves continuous automated processing of screw materials through the collaborative design of the conveyor belt and the multi-station fixture. The fixture incorporates a magnetic rotating structure and an elastic clamping structure, which can automatically adjust the clamping angle and control the clamping force during operation. This ensures the continuity of screw material transport and precisely controls the rotation angle, effectively improving the symmetry accuracy and clamping stability of cross-grooving processing. Furthermore, the overall solution significantly improves processing efficiency compared to existing technologies.
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Description

Technical Field

[0001] This invention relates to the field of milling technology, and in particular to an intelligent rapid grooving device and method for screw production. Background Technology

[0002] Screw milling and grooving equipment is an automated mechanical device used to process slots or Phillips head grooves on screw heads. It typically includes a feeding mechanism, clamping device, milling mechanism, and unloading mechanism. This type of equipment uses a vibratory feeder or conveyor belt to arrange screws in an orderly manner and feed them into a fixture for fixation. Then, a rotating milling cutter mills the screw head to create the groove. Some equipment is also equipped with a cooling system to prevent the cutter from overheating. For example, the screw Phillips head groove cutting machine described in patent CN219853136U uses a circular workstation and two sets of symmetrical milling mechanisms to automatically complete the processes of feeding, Phillips head groove cutting, drilling, and unloading. Furthermore, some equipment uses double milling cutters to cut grooves from different directions twice to reduce burrs, or employs a moving slide rail mechanism to precisely control the groove depth and width to accommodate screws of different sizes. The overall design emphasizes automation and efficiency, replacing traditional manual operation and improving production accuracy and speed.

[0003] The problem with existing technology is that when processing a batch of screws, it is necessary to rely on the precise coordination of a circular worktable and a milling cutter. During milling, the circular worktable needs to be stationary for grooving in different directions. In actual processing, such coordination is inefficient in continuous processing scenarios. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] This invention provides an intelligent rapid grooving device and method for screw production, which can solve the problem of low processing efficiency. The specific solution is as follows:

[0006] On one hand, the present invention provides an intelligent rapid grooving device for screw production, including a conveyor belt, a milling device arranged above the conveyor belt for grooving the head of the screw material, a plurality of clamps on the conveyor belt, each clamp having two clamping blocks, the outer walls of the two clamping blocks having reversing arms, the clamps being used to clamp the screw material, a first reversing frame and a second reversing frame respectively arranged at both ends of the conveyor belt, the clamps on the conveyor belt circulating sequentially within the first reversing frame and the second reversing frame, a first reversing groove and a second reversing groove respectively opened in the first reversing frame and the second reversing frame, the screw material first entering the first reversing frame after being processed by the milling device;

[0007] When the clamp is moved to the bottom of the conveyor belt, the two clamping blocks are opened along with the reversing arm under the torsional action of the first reversing groove to release the screw material.

[0008] When the clamp leaves the first reversing slot and the second reversing slot, the two clamping blocks are clamped under the action of the torsion spring;

[0009] When the fixture is driven by the conveyor belt into the second reversing frame and moves above the conveyor belt, the two clamping blocks are opened again under the torsional action of the second reversing groove, allowing the screw raw material blank to enter the fixture.

[0010] Preferably, the clamp includes a fixed seat that is fixed on the conveyor belt, and a rotating seat is provided above the fixed seat. The rotating seat is configured to rotate only 90 degrees, and two clamping blocks are hinged to the top of the rotating seat by torsion springs.

[0011] Preferably, the fixed seat has an annular step in the middle, the rotating seat has a limiting block on its outer wall, and two blocks are provided on the annular path of the annular step. The two blocks are centrally symmetrically arranged on the annular path of the annular step, and the annular step is locked between the limiting block and the bottom flange of the rotating seat. The limiting block and the two blocks are all made of magnets. The two ends of the limiting block form S pole and N pole, and the ends of the blocks and the limiting block that are close to each other are opposite poles.

[0012] Preferably, a feeding rack is provided at one end of the conveyor belt, the heads of several screw materials are placed on the feeding rack, the rods of the screw materials are suspended below the feeding rack, the feeding rack is inclined, and several screw materials are arranged closely on the feeding rack in sequence. A pusher plate is provided on one side of the feeding rack, the head of the pusher plate is triangular, one end of the pusher plate is connected to a telescopic component, the other end of the telescopic component is connected to a support plate, and a discharge cylinder is provided at the lower end of the feeding rack.

[0013] Preferably, the lower end inner wall of the first reversing slot forms a first parallel slot, and the first parallel slot is gradually twisted into a first inclined slot inside the first reversing frame. The shapes of the first parallel slot and the first inclined slot match the shape of the reversing arm.

[0014] Preferably, the inner wall of the second commutator forms a second commutator groove, the upper inner wall of the second commutator groove forms a second parallel groove, the second parallel groove is gradually twisted into a second inclined groove inside the second commutator, and the shapes of the second parallel groove and the second inclined groove match the shape of the commutator arm.

[0015] Preferably, the bottom of the second reversing frame is provided with a discharge port, which is located on the path of the second inclined groove. A collection box is provided below the discharge port, and the collection box is slidably installed on the bottom of the inner wall of the base.

[0016] Preferably, after the screw material is processed by the milling device, the clamp first enters from the second parallel groove at the top of the second reversing frame, and then matches with the second inclined groove in the second reversing groove. The reversing arm is gradually twisted into an inclined state, so that the two reversing arms are in an inclined state, and the two clamping blocks are in an open state, so that the processed screw material can be released and fall into the collection box from the feeding port.

[0017] Preferably, a first rack is provided between the first telescopic column and the second telescopic column, and a second rack is provided between the second telescopic column and the third telescopic column. The second rack and the first rack are arranged in opposite directions. The tops of the first rack and the second rack are fixed to the support arm by a connecting frame. A toothed ring is formed on the outer wall of the rotating seat. When the rotating seat passes the first rack and the second rack, it can rotate clockwise and counterclockwise respectively.

[0018] An intelligent rapid grooving method for screw production includes the following steps:

[0019] S1. Multiple grippers are continuously moved by a cyclically running conveyor belt, and each gripper is equipped with a pair of gripping blocks with a reversing arm.

[0020] S2. When the fixture moves to the processing area above the conveyor belt, the milling device performs grooving processing on the head of the screw material fixed by the clamping block.

[0021] S3. The finished fixture enters the first reversing frame along the conveyor belt. During the downward movement of the conveyor belt, the first reversing slot forces the clamping block to unfold through the reversing arm, releasing the processed screw material.

[0022] S4. After the fixture disengages from the first reversing groove, the clamping block is reset to the clamping state by the torsion spring.

[0023] S5. The unloaded fixture continues to cycle to the second reversing frame. During the upward movement of the conveyor belt, the second reversing slot drives the clamping block to unfold for the second time through the reversing arm, loading the raw material blank of the screw to be processed into the fixture.

[0024] S6. After the fixture completes the loading, it disengages from the second reversing groove. The clamping block is reset by the torsion spring to clamp the screw material, and then enters the next processing cycle with the conveyor belt.

[0025] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0026] 1. This invention achieves continuous automated processing of screw raw materials through the collaborative design of conveyor belt and multi-station fixture. The fixture has a built-in magnetic rotating structure and elastic clamping structure, which can automatically complete the clamping angle adjustment and clamping force control during operation. This ensures the continuity of screw raw material transportation and can accurately control the rotation angle, effectively improving the symmetry accuracy and clamping stability of cross groove processing. Moreover, the overall solution significantly improves the processing efficiency compared with the prior art.

[0027] 2. By setting up a first reversing frame and a second reversing frame, the present invention significantly improves the automation level of the equipment. The first reversing frame guides two clamping blocks to open and close automatically through the first reversing groove, and works with the inclined feeding frame to achieve precise material dropping. The second reversing frame guides the finished product to be automatically unloaded and collected through the second reversing groove. The entire system can complete the loading and unloading cycle without manual intervention, which reduces labor intensity and avoids human operation errors.

[0028] 3. By linking the first, second, and third milling cutters, the limitations of traditional single-processing are broken through. Through the cooperation of the gear transmission system and the telescopic tool, the slot cutting, cross groove forming, and chamfering are completed sequentially in a single conveying process. This maintains the consistency of the processing datum and significantly shortens the production cycle through process integration, thereby significantly improving processing efficiency.

[0029] 4. The magnetic limiting structure, combined with the transmission of the first and second racks, provides a dual protection mechanism. The rotating seat achieves precise angle limiting through magnetic blocks. Combined with the physical drive of the first / second rack and the gear ring transmission, it ensures that the rotation angle is accurate each time and absorbs transmission errors. This dual protection enables multi-process processing of complex angles to achieve higher reliability.

[0030] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0032] Figure 1 This is a perspective view of the entire invention;

[0033] Figure 2 This is a front view of the present invention;

[0034] Figure 3 This is a perspective view of the fixture of the present invention;

[0035] Figure 4 This is an exploded view of the fixture of the present invention;

[0036] Figure 5 This is a perspective view of the clamping block of the present invention;

[0037] Figure 6 This is a perspective view of the first reversing frame and the feeding frame of the present invention;

[0038] Figure 7 This is a perspective view of the first commutator of the present invention;

[0039] Figure 8 This is a first-view sectional view of the present invention;

[0040] Figure 9 This is a second-perspective sectional view of the present invention;

[0041] Figure 10 This is a perspective view of the left side of the present invention;

[0042] Figure 11 This is a perspective view of the milling apparatus of the present invention;

[0043] Figure 12 This is a perspective sectional view of the second commutator of the present invention;

[0044] Figure 13 This is a side view of the second commutator and clamping block of the present invention;

[0045] Figure 14 This is a partial structural schematic diagram of the milling device of the present invention.

[0046] The reference numerals in the attached figures are as follows:

[0047] 1. Base; 2. Drive roller; 3. Conveyor belt; 4. Screw raw material; 5. Fixed seat; 6. Rotating seat; 7. Annular step; 8. Limiting block; 9. Stop block; 10. Clamping block; 11. Hinge seat; 12. First reversing frame; 13. Feeding frame; 14. Push plate; 15. Telescopic component; 16. Support plate; 17. First reversing groove; 18. First parallel groove; 19. First inclined groove; 20. Feed inlet; 21. Discharge cylinder; 22. Support arm; 23. Motor; 24. First 25. Telescopic column; 26. Second telescopic column; 27. Third telescopic column; 28. First milling cutter; 29. ​​Second milling cutter; 30. Third milling cutter; 31. Drive wheel; 32. First gear; 33. Second gear; 34. First driven wheel; 35. Second driven wheel; 36. Synchronous belt; 37. Second reversing frame; 38. Second reversing groove; 39. Second parallel groove; 40. Second inclined groove; 41. Discharge port; 42. Collection box; 43. First rack; 44. Second rack; 45. Gear ring. Detailed Implementation

[0048] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and, together with the embodiments of the present invention, serve to illustrate the principles of the present invention.

[0049] Example 1: As Figure 1 , Figure 2 As shown, this embodiment provides an intelligent rapid grooving device for screw production, including a base 1. The two ends and top of the base 1 are open. A transmission roller 2 is respectively provided at both ends of the base 1. The two transmission rollers 2 are connected by a conveyor belt 3. When one transmission roller 2 rotates, the other transmission roller 2 can rotate synchronously under the drive of the conveyor belt 3. Figure 2 As shown, when processing the screw material, the screw material 4 is put into the right end of the conveyor belt 3, and then conveyed to the left side of the base 1 by the clamp on the conveyor belt 3. The top of the screw material 4 is slotted by the milling device on the left side of the base 1.

[0050] like Figure 3 , Figure 4 As shown, several clamps are provided, and the clamps are evenly distributed on the conveyor belt 3. Each clamp includes a fixed seat 5, which is fixed on the conveyor belt 3. A rotating seat 6 is provided above the fixed seat 5. The rotating seat 6 is configured to rotate a maximum of 90 degrees. Specifically, an annular step 7 is provided in the middle of the fixed seat 5, a limiting block 8 is provided on the outer wall of the rotating seat 6, and two stops 9 are provided on the annular path of the annular step 7. The two stops 9 are centrally symmetrically arranged on the annular path of the annular step 7, and the annular step 7 is locked between the limiting block 8 and the bottom flange of the rotating seat 6. Therefore, the rotating seat 6 and the fixed seat 5 will not separate.

[0051] In the above scheme, when the rotating seat 6 rotates, the limiting block 8 moves between the two stop blocks 9, and the range of movement is ninety degrees. The limiting block 8 is made of magnet, and its two ends form S pole and N pole. The two stop blocks 9 are also made of magnet, and the ends of the stop blocks 9 and the limiting block 8 that are close to each other are opposite poles. When the limiting block 8 rotates to a state that is close to either stop block 9, it can be attracted to that stop block 9.

[0052] like Figure 4 , Figure 5 As shown, a through hole is provided in the middle of the rotating seat 6, which passes through both the upper and lower ends of the rotating seat 6. The through hole is large enough for the shank of the screw material 4 to pass through. Clamping blocks 10 are provided at both ends of the rotating seat 6. The clamping blocks 10 are hinged to the two ends of the top of the rotating seat 6. The two ends of the top of the rotating seat 6 are connected to hinge seats 11. A hinge hole 10a is provided at the bottom of the clamping block 10. The hinge hole 10a is hinged to the hinge seat 11 through a torsion spring (not shown in the figure). A groove 10b is provided in the middle of the clamping block 10. A reversing arm 10c is connected to the outer side of the clamping block 10. Under the elastic force of the torsion spring, the reversing arms 10c on the two clamping blocks 10 are in a horizontal state, that is, the two clamping blocks 10 are in a clamped state.

[0053] like Figure 6 As shown, the feeding method for the screw raw material 4 can be that a feeding rack 13 is set at one end of the conveyor belt 3, the heads of several screw raw materials 4 are placed above the feeding rack 13, and the rods are suspended below the feeding rack 13. The feeding rack 13 is set at an inclination, and several screw raw materials 4 are arranged closely on the feeding rack 13 in sequence. A pusher plate 14 is set on one side of the feeding rack 13. The head of the pusher plate 14 is triangular. One end of the pusher plate 14 is connected to a telescopic member 15, and the other end of the telescopic member 15 is connected to a support plate 16. A feed cylinder 21 is set at the lower end of the feeding rack 13. The telescopic member 15 can be an electric telescopic rod or a hydraulic rod.

[0054] like Figure 7 As shown, a first reversing frame 12 is provided on the right side of the conveyor belt 3. The bottom of the support plate 16 is fixed to the top of the first reversing frame 12. A feed inlet 20 is provided at the top of the first reversing frame 12. The bottom of the feed cylinder 21 is concentrically arranged with the feed inlet 20. A first reversing groove 17 is provided on the inner wall of the first reversing frame 12. A first parallel groove 18 is formed on the lower inner wall of the first reversing groove 17. A first inclined groove 19 is formed on the upper inner wall of the first reversing groove 17 (the first parallel groove 18 is gradually twisted into the first inclined groove 19 inside the first reversing frame 12). The shapes of the first parallel groove 18 and the first inclined groove 19 match the shape of the reversing arm 10c.

[0055] In the above scheme, when the fixture moves to the bottom of the conveyor belt 3 and enters from the bottom of the first reversing groove 17, the reversing arm 10c first enters the first parallel groove 18. As the conveyor belt 3 rotates, the reversing arm 10c gradually matches the shape of the first reversing groove 17 during its movement within the first reversing groove 17. As the first inclined groove 19 rotates synchronously, the reversing arm 10c rotates to an inclined state, thereby opening the two clamping blocks 10, allowing the screw material 4 to fall from the feed port 20 onto the fixture (specifically, into the through hole on the rotating seat 6). As the conveyor belt 3 rotates, after the fixture exits from the first inclined groove 19 at the top of the first reversing frame 12, the two clamping blocks 10 return to the clamped state under the action of the torsion spring, thereby stably clamping the head of the screw material 4, facilitating subsequent grooving work.

[0056] like Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, the milling device above the conveyor belt 3 includes a support arm 22. A motor 23 is installed at the left end of the support arm 22. From right to left, the lower part of the support arm 22 consists of a first telescopic column 24, a second telescopic column 25, and a third telescopic column 26. A first milling cutter 27, a second milling cutter 28, and a third milling cutter 29 are connected to the lower part of the first telescopic column 24, the second telescopic column 25, and the third telescopic column 26, respectively. A drive wheel 30 is connected to the bottom output end of the motor 23. A first gear 31 and a second gear 32 are connected to the top of the third telescopic column 26 and the second telescopic column 25, respectively. The second gear 32 meshes with the first gear 31. A first driven wheel 33 and a second driven wheel 34 are connected to the top of the first telescopic column 24 and the first gear 31, respectively. The first driven wheel 33, the second driven wheel 34, and the drive wheel 30 rotate synchronously through a synchronous belt 35.

[0057] In the above scheme, as the screw material 4 moves from right to left, the head of the screw material 4 is first machined with a slotted groove by the first milling cutter 27. Then, the rotating seat 6 rotates 90 degrees, and the head of the screw material 4 is machined with a groove perpendicular to the slotted groove by the second milling cutter 28, thus forming a cross groove on the head of the screw material 4. Then, the rotating seat 6 rotates 90 degrees again, and the conveyor belt 3 pauses briefly. The third milling cutter 29, driven by the third telescopic column 26, moves closer to the head of the screw material 4 and mills the middle of the cross groove to form a chamfer. It should be noted that the third milling cutter 29 is an optional option.

[0058] The above solution allows the rotation direction of the first milling cutter 27, the second milling cutter 28, and the third milling cutter 29 to be aligned with the end of the limiting block 8 and the stop block 9, preventing the first milling cutter 27, the second milling cutter 28, and the third milling cutter 29 from transmitting rotational torque to the screw material 4 and the rotating seat 6. With this solution, no matter how large the torque of the first milling cutter 27, the second milling cutter 28, and the third milling cutter 29 is, the rotating seat 6 will not rotate and will always be rotating relative to the fixed seat 5, thereby avoiding angular deviation during the milling process.

[0059] It should be noted that in the above scheme, the drive wheel 30, the first driven wheel 33 and the second driven wheel 34 can be pulleys or sprockets, and the timing belt 35 can be a belt or a chain.

[0060] like Figure 12 , Figure 13 As shown, a second reversing frame 36 is provided on the left side of the conveyor belt 3. A second reversing groove 37 is provided on the inner wall of the second reversing frame 36. A second parallel groove 38 is provided on the upper inner wall of the second reversing groove 37. A second inclined groove 39 is provided on the lower inner wall of the second reversing groove 37 (the second parallel groove 38 is gradually twisted into the second inclined groove 39 inside the second reversing frame 36). The shapes of the second parallel groove 38 and the second inclined groove 39 match the shape of the reversing arm 10c.

[0061] like Figure 8 As shown, the bottom of the second reversing frame 36 is provided with a discharge port 40, which is located on the path of the second inclined groove 39. A collection box 41 is provided below the discharge port 40, and the collection box 41 is slidably installed on the bottom of the inner wall of the base 1.

[0062] In the above scheme, after the screw material 4 is processed by the milling device, the fixture first enters from the second parallel groove 38 at the top of the second reversing frame 36, and then matches with the second inclined groove 39 in the second reversing groove 37. The reversing arm 10c is gradually twisted into an inclined state, so that the two reversing arms 10c are in an inclined state, thereby opening the two clamping blocks 10. Thus, the processed screw material 4 can be released and fall from the feed port 40 into the collection box 41, thereby completing the processing.

[0063] like Figure 14 As shown, the following schemes can be used to drive the rotating seat 6 to rotate:

[0064] A first rack 42 is provided between the first telescopic column 24 and the second telescopic column 25, and a second rack 43 is provided between the second telescopic column 25 and the third telescopic column 26. The second rack 43 and the first rack 42 are arranged in opposite directions. The tops of the first rack 42 and the second rack 43 are fixed to the support arm 22 by a connecting frame. A toothed ring 44 is formed on the outer wall of the rotating seat 6. When the rotating seat 6 passes the first rack 42 and the second rack 43, it can rotate clockwise and counterclockwise respectively.

[0065] It should be noted that in the above scheme, according to the above description, "the limiting block 8 is made of a magnet, with S pole and N pole at both ends, and the two blocks 9 are also made of magnets, and the ends of the blocks 9 that are close to the limiting block 8 are opposite poles. When the limiting block 8 rotates to a state close to either block 9, it can attract that block 9", therefore, the number of teeth of the first rack 42 and the second rack 43 does not need to correspond exactly to one-quarter of the number of teeth of the toothed ring 44 (it can be slightly less, the specific number depends on the magnetic range of the magnet). It is only necessary to rotate the rotating seat 6 at a certain angle, and the remaining angle can be achieved by using the magnetism of the magnet to allow the rotating seat 6 and the limiting block 8 to automatically complete a 90-degree rotation.

[0066] It should also be noted that in the above scheme, the conveyor belt 3 has holes corresponding to several clamps so as to correspond to the rod of the screw material 4. Correspondingly, an annular groove is provided in the middle of the transmission roller 2 to avoid the rod of the screw material 4.

[0067] Example 2: This example differs from Example 1 in that it provides an intelligent rapid grooving method for screw production, comprising the following steps:

[0068] S1. The screw raw material 4 is arranged in sequence through the inclined feeding frame 13. The pusher plate 14 pushes the screw raw material to the feed cylinder 21 under the drive of the telescopic component 15. The feed cylinder 21 is aligned with the feed port 20 of the first reversing frame 12. The screw raw material falls vertically from the feed port 20.

[0069] S2. When the conveyor belt 3 carrying the clamp reaches the bottom of the first reversing frame 12, the reversing arm 10c of the clamp enters the first reversing groove 17. Guided by the first parallel groove 18 and the first inclined groove 19, the clamping block 10 is forcibly opened, and the rod of the screw material 4 enters the through hole of the rotating seat 6. After the clamp leaves the first reversing frame 12, the clamping block 10 closes under the action of the torsion spring, clamping the head of the screw material 4.

[0070] S3, the conveyor belt 3 transports the clamped screw material to below the first milling cutter 27, and the motor 23 drives the first milling cutter 27 to rotate through the drive wheel 30 and the synchronous belt 35 to cut out a "slot".

[0071] S4. After S3 is completed, the fixture passes through the first rack 42, and the rack meshes with the toothed ring 44 of the rotating seat 6, driving the rotating seat 6 to rotate 90° clockwise. The magnetic stop block 9 and the limiting block 8 attract each other with opposite poles to ensure accurate positioning of the rotation angle.

[0072] S5. After the screw material is rotated 90°, the second milling cutter 28 processes a groove perpendicular to the "slotted groove" to form a "cross groove".

[0073] S6. The fixture rotates 90° again, and the third milling cutter 29 is pressed down through the third telescopic column 26 to mill the chamfer in the middle of the cross groove, improving the surface finish of the groove.

[0074] S7. The finished screws enter the second reversing frame 36 along the conveyor belt 3. The reversing arm 10c moves along the second reversing groove 37 and guides the clamping block 10 to open through the second inclined groove 39. The finished product falls from the discharge port 40 into the collection box 41.

[0075] S8. After the clamp disengages from the second reversing frame 36, the clamping block 10 is reset and closed under the action of the torsion spring, and the conveyor belt 3 continues to feed material in a cycle.

[0076] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0078] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0079] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent rapid grooving device for screw production, comprising a conveyor belt (3), and a milling device disposed above the conveyor belt (3) for grooving the head of screw raw material (4), characterized in that: The conveyor belt (3) has several clamps, each clamp has two clamping blocks (10), and the outer walls of the two clamping blocks (10) have reversing arms (10c). The two ends of the conveyor belt (3) are respectively provided with a first reversing frame (12) and a second reversing frame (36). The clamps on the conveyor belt (3) circulate sequentially in the first reversing frame (12) and the second reversing frame (36). The first reversing frame (12) and the second reversing frame (36) are respectively provided with a first reversing groove (17) and a second reversing groove (37). After the screw raw material (4) is processed by the milling device, it first enters the first reversing frame (12). The fixture includes a fixed seat (5), which is fixed on the conveyor belt (3). A rotating seat (6) is provided above the fixed seat (5). The rotating seat (6) is configured to rotate only 90 degrees. Two clamping blocks (10) are hinged to the top of the rotating seat (6) by torsion springs. A ring step (7) is provided in the middle of the fixed seat (5), and a limiting block (8) is provided on the outer wall of the rotating seat (6). Two blocks (9) are provided on the ring path of the ring step (7). The two blocks (9) are centrally symmetrically arranged on the ring path of the ring step (7), and the ring step (7) is stuck between the limiting block (8) and the bottom flange of the rotating seat (6). The limiting block (8) and the two blocks (9) are all made of magnets. The two ends of the limiting block (8) form S pole and N pole, and the end of the block (9) and the limiting block (8) that are close to each other are opposite poles. The lower end inner wall of the first commutator slot (17) forms a first parallel slot (18), and the first parallel slot (18) is gradually twisted into a first inclined slot (19) inside the first commutator (12). The shapes of the first parallel slot (18) and the first inclined slot (19) match the shape of the commutator arm (10c). The inner wall of the second commutator (36) forms a second commutator groove (37), and the upper inner wall of the second commutator groove (37) forms a second parallel groove (38). The second parallel groove (38) is gradually twisted into a second inclined groove (39) inside the second commutator (36). The shapes of the second parallel groove (38) and the second inclined groove (39) match the shape of the commutator arm (10c). The bottom of the second reversing frame (36) is provided with a discharge port (40), which is located on the path of the second inclined groove (39). A collection box (41) is provided below the discharge port (40), and the collection box (41) is slidably installed on the bottom of the inner wall of the base (1). After the screw material (4) is processed by the milling device, the fixture first enters from the second parallel groove (38) at the top of the second reversing frame (36), and then matches with the second inclined groove (39) in the second reversing groove (37). The reversing arm (10c) is gradually twisted into an inclined state, so that the two reversing arms (10c) are in an inclined state, and the two clamping blocks (10) are in an open state, so that the screw material (4) after processing can be released and fall into the collection box (41) from the feed port (40); When the clamp is driven by the conveyor belt (3) to the bottom of the conveyor belt (3), under the torsional action of the first reversing groove (17), the two clamping blocks (10) are opened along with the reversing arm (10c) to release the screw material (4); When the clamp leaves the first reversing slot (17) and the second reversing slot (37), the two clamping blocks (10) are clamped under the action of the torsion spring; When the fixture is driven by the conveyor belt (3) into the second reversing frame (36) and moves above the conveyor belt (3), the two clamping blocks (10) are opened again under the torsion of the second reversing groove (37), so that the screw raw material (4) blank enters the fixture.

2. The intelligent rapid grooving device for screw production as described in claim 1, characterized in that: A feeding rack (13) is provided at one end of the conveyor belt (3). The heads of several screw materials (4) are placed above the feeding rack (13), and the rods of the screw materials (4) are suspended below the feeding rack (13). The feeding rack (13) is set at an angle. Several screw materials (4) are arranged closely on the feeding rack (13). A pusher plate (14) is provided on one side of the feeding rack (13). The head of the pusher plate (14) is triangular. One end of the pusher plate (14) is connected to a telescopic component (15), and the other end of the telescopic component (15) is connected to a support plate (16). A discharge cylinder (21) is provided at the lower end of the feeding rack (13).

3. The intelligent rapid grooving device for screw production as described in claim 1, characterized in that: A first rack (42) is provided between the first telescopic column (24) and the second telescopic column (25), and a second rack (43) is provided between the second telescopic column (25) and the third telescopic column (26). The second rack (43) and the first rack (42) are arranged in opposite directions. The tops of the first rack (42) and the second rack (43) are fixed to the support arm (22) by a connecting frame. A toothed ring (44) is formed on the outer wall of the rotating seat (6). When the rotating seat (6) passes the first rack (42) and the second rack (43), it can rotate clockwise and counterclockwise respectively.

4. An intelligent rapid grooving method for screw production, employing the intelligent rapid grooving device for screw production as described in any one of claims 1-3, characterized in that... The following steps are involved: S1. Multiple grippers are driven to move continuously by a conveyor belt (3) running in a cycle. Each gripper is equipped with a pair of gripping blocks (10) with a reversing arm (10c). S2. When the fixture moves to the processing area above the conveyor belt (3), the milling device performs grooving processing on the head of the screw material (4) fixed by the clamping block (10); S3. The finished fixture enters the first reversing frame (12) along the conveyor belt (3). During the downward movement of the conveyor belt (3), the first reversing groove (17) forces the clamping block (10) to unfold through the reversing arm (10c) to release the processed screw material (4). S4. After the clamp disengages from the first reversing groove (17), the clamping block (10) is reset to the clamping state by the torsion spring. S5. The unloaded fixture continues to cycle to the second reversing frame (36). During the upward movement of the conveyor belt (3), the second reversing groove (37) drives the clamping block (10) to unfold for the second time through the reversing arm (10c) to load the raw material (4) blank of the screw to be processed into the fixture. S6. After the fixture completes the loading, it disengages from the second reversing groove (37). The clamping block (10) resets and clamps the screw material (4) by the torsion spring, and enters the next processing cycle with the conveyor belt (3).

Citation Information

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