Stem shrinking machine for fastener machining

Abstract

The utility model relates to the technical field of fastener machining, and one embodiment of the utility model provides a stem shrinking machine for fastener machining, the stem shrinking machine for fastener machining comprises a base table, a stand column is fixedly mounted at the top of the base table, a top plate is fixedly mounted at the top of the stand column, and a lifting plate is arranged below the top plate; through the arrangement of the magnetic block, the fastener can be temporarily fixed, the rotating disc is made to rotate through the operation of the motor, and further the multiple sets of transmission rods can drive the clamping blocks to move towards the center of the fixing groove along the straight groove till the fastener is clamped and fixed by the multiple sets of clamping blocks. Compared with a traditional device, the device can operate through the rotating disc, the multiple sets of clamping blocks synchronously fix the fasteners, the device can be suitable for most fasteners of different models, and through the technical scheme, the technical problems that in the prior art, adaptability is poor, and replacement is difficult are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of fastener processing, in particular, to a stub reducing machine for fastener processing. BACKGROUND

[0002] Fasteners are elements for coupling and fastening parts, which are usually used to fasten two or more parts or components into a whole. There are various types and specifications, and different performances and uses, including bolts, studs, screws, nuts and other categories, which are one of the most widely used mechanical basic parts.

[0003] When fasteners are processed, they usually need to be reduced in length (diameter). Stub reducing is an important link in the manufacturing process of fasteners, which aims to improve the tensile properties of fasteners and the stability after connection. The stub-reduced fastener is not easy to elongate under stress, thereby reducing the influence of additional load and ensuring the tightness and reliability of the connection.

[0004] Currently, when performing stub reducing process, the bar material is usually pushed into the mold under cold state by pressure to reduce the cross section, so as to obtain the required size. For example, Chinese Patent Publication (Announcement) No. CN216680074U "Short Half Tooth Flange Hexagonal Bolt Single Reducing Forming Die", which is used for stub reducing process of fasteners. However, the current stub reducing machine is difficult to use in practice, because the forming die is matched with the model of the fastener. Therefore, different models of fasteners need to use different upper and lower die sets during the processing, which makes the device more laborious when facing multiple different fasteners for production. Therefore, it needs to be improved and optimized. CONTENT OF THE INVENTION

[0005] In order to overcome the above defects, embodiments of the present disclosure provide a stub reducing machine for fastener processing, which solves the technical problems of poor adaptability and difficulty in replacement in the prior art.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a stub reducing machine for fastener processing, comprising a base, a vertical column fixedly installed on the top of the base, a top plate fixedly installed on the top of the vertical column, and a lifting plate arranged below the top plate.

[0007] The inside of the lifting plate is provided with a limiting groove, a pressing plate is movably arranged in the limiting groove, a second hydraulic cylinder is fixedly arranged on the top of the lifting plate, the telescopic end of the second hydraulic cylinder is fixedly connected with the pressing plate, a fixing groove is formed in the bottom of the pressing plate, a straight groove is formed in the inside of the fixing groove, a transmission rod is movably arranged in the inside of each straight groove, a clamping block is arranged in the inside of the fixing groove, a rotating disc is rotatably arranged in the inside of the pressing plate, an arc-shaped groove is formed in the inside of the rotating disc, the top of the transmission rod is movably arranged in the inside of the arc-shaped groove, the bottom of the transmission rod penetrates through the fixing groove and is fixedly connected with the clamping block, and a magnetic block is fixedly arranged in the middle of the fixing groove.

[0008] As a preferred technical scheme of the utility model, the top of the base is fixedly provided with a fixed frame, and the fixed frame is placed with a shortened stem mold;

[0009] The front and back sides of the inner wall of the fixed frame are both provided with guide grooves, two groups of clamping blocks are movably arranged between the two guide grooves, and the two groups of clamping blocks are located on the left and right sides of the shortened stem mold.

[0010] As a preferred technical scheme of the utility model, the four corners of the lifting plate are movably sleeved with the stand, and the top of the top plate is fixedly provided with a first hydraulic cylinder.

[0011] As a preferred technical scheme of the utility model, the number of the arc-shaped grooves and the straight grooves is the same, and the positions of each group of the arc-shaped grooves and the straight grooves correspond to each other.

[0012] As a preferred technical scheme of the utility model, the inside of the pressing plate is fixedly provided with a support, a worm is rotatably arranged in the inside of the support, and a motor is fixedly arranged in the inside of the pressing plate.

[0013] As a preferred technical scheme of the utility model, the top of the rotating disc is fixedly provided with a worm wheel, and the worm wheel is in transmission connection with the worm.

[0014] As a preferred technical scheme of the utility model, the bottom four corners of the lifting plate are all fixedly provided with pressing blocks, and the shape of the pressing blocks is a right-angled trapezoid.

[0015] As a preferred technical scheme of the utility model, the inclined surfaces of the left and right groups of clamping blocks and the pressing blocks are oppositely arranged, and the inclined surfaces of the left and right groups of clamping blocks and the pressing blocks are parallel to each other.

[0016] As a preferred technical scheme of the utility model, one end of each of the two groups of clamping blocks is fixedly provided with an extension rod, and one end of the extension rod penetrates through the outside of the fixed frame and is fixedly connected with a convex block.

[0017] As a preferred technical scheme of the utility model, the outer wall of the extension rod is provided with a reset spring, and the lug and the fixed frame are elastically connected through the reset spring.

[0018] The embodiment of the present disclosure has the following beneficial effects:

[0019] 1、In the present disclosure, the fastener can be temporarily fixed through the setting of the magnetic block, and the rotating disc is rotated through the operation of the motor, and the further multiple sets of transmission rods will drive the clamping blocks to synchronously displace along the straight grooves towards the center of the fixed groove, until the fastener is clamped and fixed by the multiple sets of clamping blocks, compared with the traditional device, the device can fix the fastener by the rotating disc in operation, and the device can be applicable to most different models of fasteners, thereby eliminating the replacement step, effectively improving the work efficiency and reducing the work burden.

[0020] 2、In the present disclosure, the left and right side pressing blocks are displaced downward through the operation of the first hydraulic cylinder, the downward displacement of the pressing blocks will push the two sets of clamping blocks to the middle part of the fixed frame, and when the displacement reaches the maximum value, the two sets of clamping blocks will displace along the guide grooves and clamp and fix the shrink tube mold, compared with the traditional device, the device only needs to control the downward displacement of the pressing blocks to fix the shrink tube mold, and after the processing is completed, the pressing blocks and the clamping blocks are reset, so that the workers can easily take down the shrink tube mold, which is convenient for replacing the shrink tube mold and improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0022] Figure 1 It is a structure schematic view of the top plate in an embodiment of the present disclosure;

[0023] Figure 2 It is a structure schematic view of the clamping block in the embodiment of the present disclosure; Figure 1

[0024] Figure 3 It is a structure schematic view of the lifting plate in the embodiment of the present disclosure; Figure 1

[0025] Figure 4 It is a structure schematic view of the second hydraulic cylinder in the embodiment of the present disclosure; Figure 1

[0026] Figure 5 ​​​Structure diagram of the clamping block in another embodiment of the present disclosure;

[0027] Figure 6 Structure diagram of the clamping block in another embodiment of the present disclosure; Figure 5 Structure diagram of the clamping block in another embodiment of the present disclosure;

[0028] Figure 7 Structure diagram of the clamping block in another embodiment of the present disclosure; Figure 6 Structure diagram of the clamping block in another embodiment of the present disclosure.

[0029] In the figure: 1, base; 2, column; 3, top plate; 4, first hydraulic cylinder; 5, lifting plate; 6, second hydraulic cylinder; 7, limiting groove; 8, pressing plate; 9, fixed groove; 10, straight groove; 11, clamping block; 12, transmission rod; 13, rotating disc; 14, arc-shaped groove; 15, worm gear; 16, bracket; 17, motor; 18, worm; 19, pressing block; 20, fixed frame; 21, guide groove; 22, shrinkage mold; 23, clamping block; 24, protruding block; 25, return spring; 26, extension rod; 27, magnetic block. DETAILED DESCRIPTION

[0030] The present disclosure will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0031] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0032] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0033] In the present disclosure, unless explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0034] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationships are based on the orientation or position relationships shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0035] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] As Figures 1-7 shown, it shows a shrink machine for fastener processing in an embodiment of the present disclosure, which comprises a base 1, a stand 2 fixedly installed on the top of the base 1, a top plate 3 fixedly installed on the top of the stand 2, and a lifting plate 5 arranged below the top plate 3;

[0037] A limiting groove 7 is formed in the inside of the lifting plate 5, a pressing plate 8 is movably installed in the inside of the limiting groove 7, a second hydraulic cylinder 6 is fixedly installed on the top of the lifting plate 5, the telescopic end of the second hydraulic cylinder 6 is fixedly connected with the pressing plate 8, a fixed groove 9 is formed on the bottom of the pressing plate 8, a straight groove 10 is formed in the inside of the fixed groove 9, a transmission rod 12 is movably installed in the inside of each group of straight grooves 10, a clamping block 11 is arranged in the inside of the fixed groove 9, a rotating disc 13 is rotatably installed in the inside of the pressing plate 8, an arc-shaped groove 14 is formed in the inside of the rotating disc 13, the top of the transmission rod 12 is movably installed in the inside of the arc-shaped groove 14, the bottom of the transmission rod 12 penetrates into the fixed groove 9 and is fixedly connected with the clamping block 11, and a magnetic block 27 is fixedly installed in the middle of the fixed groove 9.

[0038] When the fastener embryo needs to be shortened, the worker first places one end of the fastener inside the fixed groove 9, at which time the magnetic block 27 will adsorb the fastener on the fixed groove 9, then starts the motor 17, the operation of the motor 17 drives the rotation of the worm 18, the rotation of the worm 18 drives the rotation of the worm gear 15 meshed with it, further the worm gear 15 drives the rotation of the rotating disc 13, because the rotating disc 13 is internally provided with a plurality of arc-shaped grooves 14, the arc-shaped grooves 14 will move with the rotation of the rotating disc 13, when the arc-shaped grooves 14 displace, the arc-shaped grooves 14 will displace the transmission rods 12 inside them, further because the bottom of the transmission rod 12 passes through the straight groove 10, the displacement path of the transmission rod 12 is limited, further at this time, the plurality of transmission rods 12 will drive the clamping blocks 11 to displace synchronously along the straight groove 10 towards the center of the fixed groove 9, with the displacement of the clamping blocks 11, the worker can adjust the position of the fastener until the fastener is clamped and fixed by the plurality of clamping blocks 11, then the worker starts the first hydraulic cylinder 4 through the motor 17, the operation of the first hydraulic cylinder 4 will drive the lifting plate 5 to displace downward along the stand 2, with the downward displacement of the lifting plate 5, the pressing block 19 will first contact the clamping block 23, further because the inclined surfaces of the pressing block 19 and the clamping block 23 are parallel to each other, the downward displacement of the pressing block 19 will push the two clamping blocks 23 to the middle of the fixed frame 20, further the two clamping blocks 23 will displace along the guide groove 21 and clamp and fix the shortening die 22, finally the worker starts the second hydraulic cylinder 6, the movement of the second hydraulic cylinder 6 will drive the pressing plate 8 to displace downward, so that the fastener at the bottom of the pressing plate 8 enters the inside of the shortening die 22, completing the shortening process.

[0039] Through the arrangement of the magnetic block 27, the fastener can be temporarily fixed, through the operation of the motor 17 to rotate the rotating disc 13, further the plurality of transmission rods 12 will drive the clamping blocks 11 to displace synchronously along the straight groove 10 towards the center of the fixed groove 9, until the fastener is clamped and fixed by the plurality of clamping blocks 11, compared with the traditional device, the device can operate through the rotating disc 13 to fix the fastener synchronously by the plurality of clamping blocks 11, and the device can be suitable for most different models of fasteners, eliminating the replacement step, effectively improving the work efficiency and reducing the work burden.

[0040] In some examples, the top of the base 1 is fixedly provided with a fixed frame 20, and the inside of the fixed frame 20 is provided with a shortening die 22;

[0041] The front and rear sides of the inner wall of the fixed frame 20 are provided with guide grooves 21, two sets of clamping blocks 23 are movably installed between the two guide grooves 21, and the two sets of clamping blocks 23 are located on the left and right sides of the shortening die 22, and the shape of the two sets of clamping blocks 23 is a right-angled trapezoid.

[0042] The operation of the first hydraulic cylinder 4 drives the lifting plate 5 to displace downward along the stand 2. With the downward displacement of the lifting plate 5, the pressing block 19 first contacts the clamping block 23. Further, since the inclined surfaces of the pressing block 19 and the clamping block 23 are parallel to each other, the downward displacement of the pressing block 19 drives the two groups of clamping blocks 23 to the middle of the fixed frame 20. Further, the two groups of clamping blocks 23 displace along the guide groove 21 and clamp and fix the shortened stem mold 22.

[0043] Through the operation of the first hydraulic cylinder 4, the left and right pressing blocks 19 displace downward. The downward displacement of the pressing block 19 drives the two groups of clamping blocks 23 to the middle of the fixed frame 20. When the displacement reaches the maximum value, the two groups of clamping blocks 23 displace along the guide groove 21 and clamp and fix the shortened stem mold 22. Compared with the traditional device, the device only needs to control the downward displacement of the pressing block 19 to fix the shortened stem mold 22. After the processing is completed, the pressing block 19 and the clamping block 23 are reset, and the shortened stem mold 22 can be easily removed by the worker, which facilitates the replacement of the shortened stem mold 22 and improves the work efficiency.

[0044] In some examples, the four corners of the lifting plate 5 are movably sleeved with the stand 2, and the top of the top plate 3 is fixedly installed with the first hydraulic cylinder 4. The telescopic end of the first hydraulic cylinder 4 is fixedly connected with the lifting plate 5.

[0045] Through the arrangement of the two groups of first hydraulic cylinders 4, the lifting of the lifting plate 5 is controlled.

[0046] In some examples, the number of the arc-shaped grooves 14 and the straight grooves 10 is the same, and the positions of each group of the arc-shaped grooves 14 and the straight grooves 10 correspond to each other.

[0047] Through the arrangement of the arc-shaped grooves 14, power is provided for the movement of the transmission rod 12. Through the arrangement of the straight grooves 10, the movement path of the transmission rod 12 is limited.

[0048] In some examples, the inside of the pressing plate 8 is fixedly installed with the support 16, the inside of the support 16 is rotatably installed with the worm 18, the inside of the pressing plate 8 is fixedly installed with the motor 17, and the output shaft of the motor 17 is fixedly connected with the worm 18.

[0049] In some examples, the top of the rotating disc 13 is fixedly installed with the worm gear 15, and the worm gear 15 is in transmission connection with the worm 18.

[0050] The operation of the motor 17 drives the worm 18 to rotate. The rotation of the worm 18 drives the worm gear 15, which is in meshing connection with the worm 18, to rotate. Further, the worm gear 15 drives the rotating disc 13 to rotate.

[0051] In some examples, the bottom four corners of the lifting plate 5 are fixedly installed with the pressing block 19, and the shape of the pressing block 19 is a right trapezoid.

[0052] In some examples, the two groups of clamping blocks 23 and the inclined surfaces of the pressing blocks 19 are oppositely arranged, and the inclined surfaces of the two groups of clamping blocks 23 and the pressing blocks 19 are parallel to each other.

[0053] The inclined surfaces of the pressing blocks 19 and the clamping blocks 23 are parallel to each other, so that when the pressing blocks 19 and the clamping blocks 23 are in contact with each other, the clamping blocks 23 are pushed inward, and the shrinking mold 22 is further fixed.

[0054] In some examples, one end of the two groups of clamping blocks 23 is fixedly provided with an extension rod 26, one end of the extension rod 26 penetrates to the outside of the fixed frame 20 and is fixedly connected with the convex block 24.

[0055] In some examples, the outer wall of the extension rod 26 is provided with a reset spring 25, and the convex block 24 and the fixed frame 20 are elastically connected through the reset spring 25.

[0056] After the shrinking is completed, the worker resets the lifting plate 5, at this time, the clamping blocks 23 which lose the extrusion of the pressing blocks 19 can be reset through the elastic potential energy of the reset spring 25, and further, the worker can replace the shrinking mold 22.

[0057] The working principle and use process of the utility model are as follows:

[0058] When the fastener embryo needs to be shortened, the worker first places one end of the fastener inside the fixed groove 9, at which time the magnetic block 27 will adsorb the fastener on the fixed groove 9, and then starts the motor 17, the operation of the motor 17 drives the rotation of the worm 18, the rotation of the worm 18 drives the rotation of the worm gear 15 meshed with it, and further the worm gear 15 drives the rotation of the rotating disc 13. Since the rotating disc 13 is internally provided with a plurality of arc-shaped grooves 14, the arc-shaped grooves 14 will move with the rotation of the rotating disc 13. When the arc-shaped grooves 14 displace, the arc-shaped grooves 14 will drive the displacement of the transmission rods 12 inside them. Further, since the bottom of the transmission rod 12 passes through the straight groove 10, the displacement path of the transmission rod 12 is limited. Further, at this time, the plurality of transmission rods 12 will drive the clamping blocks 11 to displace synchronously along the straight groove 10 towards the center of the fixed groove 9. With the displacement of the clamping blocks 11, the worker can adjust the position of the fastener until the fastener is clamped and fixed by the plurality of clamping blocks 11. Then the worker starts the first hydraulic cylinder 4 through the motor 17, and the operation of the first hydraulic cylinder 4 will drive the lifting plate 5 to displace downward along the stand 2. With the downward displacement of the lifting plate 5, the pressing block 19 will first contact the clamping block 23. Further, since the inclined surfaces of the pressing block 19 and the clamping block 23 are parallel to each other, the downward displacement of the pressing block 19 will push the two clamping blocks 23 to the middle of the fixed frame 20. Further, the two clamping blocks 23 will displace along the guide groove 21 and clamp and fix the shortening die 22. Finally, the worker starts the second hydraulic cylinder 6, and the movement of the second hydraulic cylinder 6 will drive the pressing plate 8 to displace downward, so that the fastener at the bottom of the pressing plate 8 enters the inside of the shortening die 22, completing the shortening process.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, not to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, which should be covered in the scope of the claims of the present disclosure.

Claims

1. A fastener processing spindle reduction machine, comprising a base (1), characterized in that: A column (2) is fixedly installed on the top of the base (1), a top plate (3) is fixedly installed on the top of the column (2), and a lifting plate (5) is provided below the top plate (3). The lifting plate (5) has a limiting groove (7) inside, and a pressure plate (8) is movably installed inside the limiting groove (7). A second hydraulic cylinder (6) is fixedly installed on the top of the lifting plate (5). The telescopic end of the second hydraulic cylinder (6) is fixedly connected to the pressure plate (8). A fixing groove (9) is opened at the bottom of the pressure plate (8). A straight groove (10) is opened inside the fixing groove (9). A transmission rod (12) is movably installed inside each set of straight grooves (10). A clamping block (11) is provided inside the fixing groove (9). A rotating disk (13) is rotatably installed inside the pressure plate (8). An arc groove (14) is opened inside the rotating disk (13). The top of the transmission rod (12) is movably installed inside the arc groove (14). The bottom of the transmission rod (12) penetrates to the fixing groove (9) and is fixedly connected to the clamping block (11). A magnetic block (27) is fixedly installed in the middle of the fixing groove (9).

2. The fastener processing head reduction machine according to claim 1, characterized in that: A fixing frame (20) is fixedly installed on the top of the base (1), and a shrinkage mold (22) is placed inside the fixing frame (20). The inner wall of the fixed frame (20) is provided with guide grooves (21) on both the front and rear sides. Two sets of clamping blocks (23) are movably installed between the two sets of guide grooves (21), and the two sets of clamping blocks (23) are located on the left and right sides of the shrinking mold (22). The shape of the two sets of clamping blocks (23) is a right trapezoid.

3. The fastener processing head reduction machine according to claim 1, characterized in that: The four corners of the lifting plate (5) are movably connected to the column (2), and the top of the top plate (3) is fixedly installed with a first hydraulic cylinder (4), and the telescopic end of the first hydraulic cylinder (4) is fixedly connected to the lifting plate (5).

4. A fastener reduction machine according to claim 1, characterized in that: The number of arc-shaped grooves (14) and straight grooves (10) is the same, and the positions of each set of arc-shaped grooves (14) and straight grooves (10) correspond to each other.

5. A fastener processing head reduction machine according to claim 1, characterized in that: A bracket (16) is fixedly installed inside the pressure plate (8), a worm gear (18) is rotatably installed inside the bracket (16), and a motor (17) is fixedly installed inside the pressure plate (8). The output shaft of the motor (17) and the worm gear (18) are fixedly connected.

6. A fastener processing head reduction machine according to claim 1, characterized in that: A worm gear (15) is fixedly installed on the top of the rotating disk (13), and the worm gear (15) and the worm (18) are connected in a transmission.

7. A fastener processing head reduction machine according to claim 1, characterized in that: The lifting plate (5) has pressure blocks (19) fixedly installed at the four corners of its bottom. The pressure blocks (19) are right trapezoidal in shape.

8. A fastener reduction machine according to claim 2, characterized in that: The inclined surfaces of the left and right sets of clamping blocks (23) and pressing blocks (19) are opened in opposite directions, and the inclined surfaces of the left and right sets of clamping blocks (23) and pressing blocks (19) are parallel to each other.

9. A fastener processing head reduction machine according to claim 2, characterized in that: One end of each of the two sets of clamping blocks (23) is fixedly installed with an extension rod (26), one end of which extends through to the outside of the fixed frame (20) and is fixedly connected to the protrusion (24).

10. A fastener processing head reduction machine according to claim 9, characterized in that: The outer wall of the extension rod (26) is provided with a return spring (25), and the protrusion (24) and the fixing frame (20) are elastically connected by the return spring (25).

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