Threaded hole die structure and machining equipment

Abstract

The utility model provides a tapping hole die structure and machining equipment. The tapping hole die structure comprises a die holder and a female die, the die holder is provided with a supporting face, the supporting face is used for supporting a workpiece, a containing cavity is formed in the die holder, and a first elastic piece is arranged in the containing cavity. The utility model discloses a utility model female die which is movably arranged in a utility model containing cavity, a utility model first elastic piece is sleeved on the utility model female die, and a discharging channel is arranged in the utility model female die. The discharging channel is configured to discharge waste falling from a workpiece when the tapping hole die structure is used for forming a hole in the workpiece. According to the tapping hole die structure, the first elastic piece is arranged on the female die in the sleeving manner, and the discharging channel is formed in the female die, so that when a workpiece is punched, waste falling from the workpiece can be discharged from the discharging channel and cannot fall onto the first elastic piece, and the problem that the waste blocks and explodes the die is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping, in particular to a tooth extraction hole die structure and processing equipment. Background Art

[0002] In the related art, the processing of the tooth extraction hole requires a punching process first and then a hole turning process. This processing method will produce waste after the hole is processed. The waste has a small diameter and is light in weight and will not fall vertically, which can easily cause the waste to block the mold. Utility Model Content

[0003] The embodiment of the utility model provides a tooth extraction hole mold structure and processing equipment to solve at least one of the above-mentioned technical problems.

[0004] The utility model provides a tooth extraction hole die structure, comprising a die base and a concave die;

[0005] The die base has a supporting surface, the supporting surface is used to support the workpiece, the die base is provided with an accommodating cavity, and the accommodating cavity is provided with a first elastic member;

[0006] The die is movably disposed in the accommodating cavity, the first elastic member is sleeved on the die, a discharge channel is provided in the die, and the discharge channel is configured to discharge waste material dropped from the workpiece when the tooth extraction hole mold structure forms a hole in the workpiece.

[0007] In the above-mentioned tooth hole extraction mold structure, the first elastic member is sleeved on the die, and a discharge channel is provided in the die. Therefore, when punching the workpiece, the waste material falling from the workpiece will be discharged from the discharge channel and will not fall on the first elastic member, thereby avoiding the problem of waste material blocking the mold and exploding.

[0008] In an optional technical solution of the present invention, the accommodating cavity includes a first section and a second section, the first section and the second section are connected in sequence along a direction away from the supporting surface, the radial dimension of the first section is smaller than the radial dimension of the second section, and the first elastic member is located in the second section.

[0009] In an optional technical solution of the present utility model, the die includes a first part, a second part and a limiting portion, the limiting portion connects the first part and the second part, the first part is accommodated in the first section, the second part and the limiting portion are accommodated in the second section, and one end of the first elastic member abuts against the limiting portion and is sleeved on the second part.

[0010] In an optional technical solution of the present utility model, the tooth extraction hole mold structure includes a fixing part, the fixing part is arranged in the second section, the second part passes through the fixing part, and the other end of the first elastic part abuts against the fixing part.

[0011] In an optional technical solution of the present invention, the discharge channel includes a first channel and a second channel, the first channel and the second channel are connected in sequence along a direction away from the supporting surface, and the radial dimension of the first channel is smaller than the radial dimension of the second channel.

[0012] In an optional technical solution of the utility model, the tooth extraction hole mold structure includes a tooth extraction punch and a pressure plate assembly;

[0013] The tooth extraction punch is arranged on the pressure plate assembly, and the pressure plate assembly can move along a first direction close to the die base so that the tooth extraction punch passes through the workpiece and abuts against the die, and can move along a second direction away from the die base so that the tooth extraction punch is separated from the workpiece and the die.

[0014] In an optional technical solution of the present utility model, the pressing plate assembly includes a connecting plate, a second elastic member and a pressing plate;

[0015] The connecting plate is connected to the pressing plate through the second elastic member, the connecting plate is configured to connect to a press, the pressing plate is arranged opposite to the supporting surface, one end of the tooth extraction punch is connected to the press, and the tooth extraction punch can be movably inserted into the pressing plate;

[0016] The second elastic member is configured such that when the connecting plate drives the extraction punch to form a hole in the workpiece, the second elastic member is compressed to make the pressing plate close to the connecting plate.

[0017] In an optional technical solution of the utility model, the pressing plate is provided with a machining through hole penetrating the pressing plate along the thickness direction, the tooth extraction punch is partially located in the machining through hole, and the diameter of the machining through hole is larger than the diameter of the tooth extraction punch.

[0018] In an optional technical solution of the utility model, the tooth extraction punch comprises a first part, a second part and a third part;

[0019] The first part, the second part and the third part are connected in sequence along a direction close to the die, the radial dimension of the first part is larger than the radial dimension of the second part, and the radial dimension of the second part is larger than the radial dimension of the third part.

[0020] In an optional technical solution of the present invention, a first connection formed by connecting the first part and the second part is provided with a first chamfer structure, and / or a second connection formed by connecting the second part and the third part is provided with a second chamfer structure.

[0021] In an optional technical solution of the present utility model, the tooth extraction punch includes a fourth part, and the fourth part is protruded from the end surface of the third part away from the second part.

[0022] In an optional technical solution of the present utility model, the fourth portion includes a first protrusion, and the protrusion is in a strip shape;

[0023] Or the fourth portion includes a first protrusion and a second protrusion, the first protrusion and the second protrusion are both strip-shaped, the first protrusion and the second protrusion are perpendicular to each other, and the first protrusion and the second protrusion are both perpendicular to the end surface of the third portion away from the second portion.

[0024] The utility model also discloses a processing device, which comprises a tooth extraction hole mold structure.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the embodiments of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 One of the structural schematic diagrams of the tooth extraction hole mold structure provided in the embodiment of the utility model;

[0028] Figure 2 A schematic diagram of the structure of the mold base provided in the embodiment of the utility model;

[0029] Figure 3 Another structural schematic diagram of the mold base provided by the embodiment of the utility model;

[0030] Figure 4 A schematic diagram of the structure of a concave mold provided in an embodiment of the utility model;

[0031] Figure 5 The second structural schematic diagram of the tooth extraction hole mold structure provided by the embodiment of the utility model;

[0032] Figure 6The third structural schematic diagram of the tooth extraction hole mold structure provided by the embodiment of the utility model;

[0033] Figure 7 A schematic diagram of the structure of a pressure plate assembly provided in an embodiment of the utility model;

[0034] Figure 8 The fourth structural schematic diagram of the tooth extraction hole mold structure provided by the embodiment of the utility model;

[0035] Fig. 9 The fifth structural schematic diagram of the tooth extraction hole mold structure provided by the embodiment of the utility model;

[0036] Fig.10 One of the structural schematic diagrams of the tooth extraction punch provided in the embodiment of the utility model;

[0037] Fig.11 The second structural schematic diagram of the tooth extraction punch provided by the embodiment of the utility model;

[0038] Fig.12 The third structural schematic diagram of the tooth extraction punch provided by the embodiment of the utility model;

[0039] Fig.13 A fourth structural schematic diagram of a tooth extraction punch provided in an embodiment of the utility model;

[0040] Fig.14 A fifth structural diagram of a tooth extraction punch provided in an embodiment of the utility model;

[0041] Fig.15 One of the size schematic diagrams of the tooth extraction punch provided in the embodiment of the utility model;

[0042] Fig.16 The second schematic diagram of the dimensions of the tooth extraction punch provided in the embodiment of the utility model.

[0043] Description of reference numerals:

[0044] 100-tooth extraction hole mold structure; 10-die base; 11-support surface; 12-accommodating cavity; 121-first section; 122-second section; 13-first elastic member; 20-die; 21-discharge channel; 211-first channel; 212-second channel; 22-first part; 23-second part; 24-limiting part; 30-fixing part; 40-pressing plate assembly; 41-connecting plate; 42-second elastic member; 43-pressing plate; 431-processing through hole; 50-tooth extraction punch; 51-fifth part; 52-first part; 53-second part; 54-third part; 55-fourth part; 551-first protrusion; 552-second protrusion; 56-first chamfering structure; 57-second chamfering structure; 60-workpiece; 70-waste material. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] In the related art, the extraction holes are processed by secondary forming, that is, the punching process is performed first and the hole turning process is performed later. This processing method may cause the punch to break during the punching process due to the thick workpiece material. The workpiece will also produce waste during the extraction hole processing. The waste has a small diameter and is light in weight. It will not fall vertically and be discharged, which is easy to cause waste blockage, and then cause the die to explode.

[0052] See also Figure 1 The utility model discloses a tooth extraction hole mold structure 100, including a mold base 10 and a die 20; the mold base 10 has a supporting surface 11, the supporting surface 11 is used to support a workpiece 60, a receiving cavity 12 is provided in the mold base 10, and a first elastic member 13 is provided in the receiving cavity 12; the die 20 is movably arranged in the receiving cavity 12, the first elastic member 13 is sleeved on the die 20, and a discharge channel 21 is provided in the die 20, and the discharge channel 21 is configured to discharge waste material 70 dropped from the workpiece 60 when the tooth extraction hole mold structure 100 forms a hole in the workpiece 60.

[0053] In the above-mentioned tooth hole mold structure 100, the first elastic member 13 is sleeved on the die 20, and a discharge channel 21 is provided in the die 20. Therefore, when punching the workpiece 60, the waste material 70 dropped from the workpiece 60 will be discharged from the discharge channel 21 and will not fall onto the first elastic member 13, thereby avoiding the problem of waste material 70 blocking the mold and causing it to burst.

[0054] The die base 10 is the base of the punching hole die structure, and the die 20 is used to form a specific shape in the metal sheet or other materials during stamping. In the utility model, it is used to form a tooth extraction hole in the metal material or other materials; a receiving cavity 12 is opened in the die base 10, and the receiving cavity 12 is arranged along the center line or axis of the die base 10, and is connected to the processing surface and bottom surface of the die base 10.

[0055] See also Figure 2 and Figure 3 In some embodiments, the mold base 10 is configured as a rectangular body or a cylindrical body. The mold base 10 can be as follows Figure 2 The two bases are connected by bolts, and can also be Figure 3 In this embodiment, the mold base 10 is preferably formed by splicing two bases, so that it is convenient to replace or repair the female mold 20 and the elastic member 13 arranged in the accommodating cavity 12.

[0056] The accommodating cavity 12 is used to install the die 20. Specifically, a first elastic member 13 is provided in the accommodating cavity 12, and the first elastic member 13 is sleeved on the die 20. When the die 20 is moved by force, the first elastic member 13 is subjected to the pressure of the die 20, and the first elastic member 13 is compressed, so that the die 20 can be moved within a certain range to avoid damage to the die 20. A discharge channel 21 is provided inside the die 20, that is, the inside of the die 20 is set as a cavity. The discharge channel 21 is used to discharge the waste 70 cut from the workpiece 60 when the tooth hole mold structure 100 forms a hole on the workpiece 60, which can reduce the number of times the waste 70 is cleaned and can also avoid mold explosion caused by the accumulation of waste 70.

[0057] See also Figure 2 and Figure 3 In some embodiments, the accommodating cavity 12 includes a first section 121 and a second section 122, which are sequentially connected in a direction away from the supporting surface 11, the radial dimension of the first section 121 is smaller than the radial dimension of the second section 122, and the first elastic member 13 is located in the second section 122. In this way, the die 20 can be confined in the accommodating cavity 12.

[0058] In some embodiments, when the mold base 10 is formed by splicing two bases by bolts, the first section 121 is a cavity portion provided in the upper base, and the second section 122 is a cavity portion provided in the lower base, and the cavity portion of the upper base and the cavity portion of the lower base together constitute the accommodating cavity 12; when the base is an integral body, the first end and the second end are connected, and are sequentially connected in a direction away from the support surface 11 (such as Figure 3 Connect from top to bottom as shown).

[0059] The radial dimension of the first section 121 of the accommodating cavity 12 is smaller than the radial dimension of the second section 122, and the radial dimension of the second section 122 of the accommodating cavity 12 is larger than the radial dimension of the first section 121. This is to limit the movement of the die 20 in the accommodating cavity 12. The radial dimension of the first section 121 of the accommodating cavity 12 is larger than the dimension of the die 20. In this way, the die 20 is restricted in the accommodating cavity 12 and can move in the accommodating cavity 12, which is convenient for processing the workpiece 60.

[0060] See also Figure 4 and Figure 5 In some embodiments, the female mold 20 includes a first portion 22, a second portion 23 and a stopper 24, the stopper 24 connects the first portion 22 and the second portion 23, the first portion 22 is accommodated in the first section 121, the second portion 23 is accommodated in the second section 122, and one end of the first elastic member 13 abuts against the stopper 24. In this way, the female mold 20 can be prevented from popping out of the accommodation portion.

[0061] The die 20 is along a first direction (eg Figure 5 From top to bottom as shown or as Figure 5 The first part 22, the limiting part 24, and the second part 23 (i.e., the limiting part 24 connects the first part 22 and the second part 23) are sequentially arranged in the X direction as shown in the figure. The radial dimensions of the first part 22 and the second part 23 of the die 20 are the same, and the radial dimensions of the limiting part 24 are larger than the radial dimensions of the first part 22 and the second part 23.

[0062] The radial dimension of the first portion 22 of the die 20 is smaller than the radial dimension of the first section 121 of the accommodating cavity 12, so that the first portion 22 of the die 20 can be located in the first section 121 of the accommodating cavity 12. The radial dimension of the stopper 24 of the die 20 is larger than the radial dimension of the first section 121 of the accommodating cavity 12, so that the stopper 24 can abut against the first section 121 under the elastic force of the first elastic member 13. The first portion 22 and the second portion 23 have the same radial dimension, and the second portion 23 is inserted into the first elastic member 13 and located in the second section 122 of the accommodating cavity 12.

[0063] In some embodiments, the tooth extraction hole mold structure 100 includes a fixing member 30 , which is disposed in the second section 122 , the second portion 23 passes through the fixing member 30 , and the other end of the first elastic member 13 abuts against the fixing member 30 .

[0064] See also Figure 5 The fixing member 30 is used to limit the position of the first elastic member 13 in the accommodating chamber 12. The fixing member 30 can be fixedly arranged in the second section 122 of the accommodating chamber 12, or can be detachably arranged in the second section 122 of the accommodating chamber 12. For example, a threaded hole is set in the second section 122 of the accommodating chamber 12, and a set screw is installed in the threaded hole to achieve a detachable connection.

[0065] In some embodiments, the fixing member 30 may be a hexagonal set screw, and the bottom of the set screw may be provided with a hole or without a hole. When a hole is provided at the bottom of the set screw, it is convenient to remove the waste 70. In this embodiment, it is preferred to select a set screw with a hole to facilitate the discharge of the waste 70.

[0066] In some embodiments, the discharge channel 21 includes a first channel 211 and a second channel 212, the first channel 211 and the second channel 212 are sequentially connected in a direction away from the support surface 11, and the radial dimension of the first channel 211 is smaller than the radial dimension of the second channel 212. In this way, the waste 70 generated when processing the workpiece 60 can be easily discharged from the discharge channel 21.

[0067] See also Figure 4 The first channel 211 and the second channel 212 are arranged along Figure 4 As shown, the first channel 211 and the second channel 212 are distributed in the upper and lower directions, and are connected. The interiors of the first channel 211 and the second channel 212 are both cavities. The radial dimension of the first channel 211 is smaller than the radial dimension of the second channel 212. When the waste 70 generated by processing the workpiece 60 can pass through the first channel 211, it can also pass through the second channel 212. In this way, the waste 70 can be discharged from the discharge channel 21 more smoothly, avoiding the blockage of the discharge channel 21 due to the accumulation of waste 70 and the resulting mold explosion.

[0068] See also Figure 5 and Figure 6 In some embodiments, the tooth extraction hole mold structure 100 also includes a tooth extraction punch 50 and a pressure plate assembly 40; the tooth extraction punch 50 is arranged on the pressure plate assembly 40, and the pressure plate assembly 40 can move along a first direction close to the die base 10 so that the tooth extraction punch 50 passes through the workpiece 60 and abuts against the die 20, and can move along a second direction away from the die base 10 to separate the tooth extraction punch 50 from the workpiece 60 and the die 20.

[0069] The pressure plate assembly 40 can be arranged along a first direction (eg Figure 5 downward or in the X direction in the figure) or in a second direction (such as Figure 5 The tooth extraction punch 50 is arranged on the pressure plate assembly 40. When the pressure plate assembly 40 moves along the first direction, the tooth extraction punch 50 is driven to move toward the side close to the die base 10 and completes the processing of the workpiece 60. When the pressure plate assembly 40 completes the processing of the workpiece 60, the lifting assembly moves along the second direction, driving the tooth extraction punch 50 to move toward the side away from the die base 10.

[0070] See also Figure 6 and Figure 7In some embodiments, the pressure plate assembly 40 includes a connecting plate 41, a second elastic member 42 and a pressure plate 43; the connecting plate 41 is connected to the pressure plate 43 through the second elastic member 42, the connecting plate 41 is configured to connect to a press, the pressure plate 43 is arranged opposite to the support surface 11, one end of the extraction punch 50 is connected to the press, and the extraction punch 50 can be movably inserted into the pressure plate 43; the second elastic member 42 is configured so that when the connecting plate 41 drives the extraction punch 50 to form a hole in the workpiece 60, the second elastic member 42 is compressed by force to make the pressure plate 43 close to the connecting plate 41.

[0071] The press is connected to the connecting plate 41, and the press can drive the connecting plate 41 to move along the first direction or the second direction; the press can be a hydraulic lift, an electric lift, etc. A second elastic member 42 is provided on the side of the connecting plate 41 close to the die base 10, and the second elastic member 42 is connected to the pressing plate 43, and the pressing plate 43 is used to limit the movement of the workpiece 60 on the processing surface to avoid the workpiece 60 being scrapped due to the movement of the workpiece 60 during the stamping process.

[0072] See also Figure 1 , Figure 5 , Figure 6 , Figure 8 When the press moves along the first direction, the tooth extraction punch 50 enters the processing state. The pressing plate assembly 40 in the processing state has four working stages:

[0073] The first stage is mainly to fix the workpiece 60. Specifically, the pressing plate 43 abuts against the working surface, and the workpiece 60 is fixed by the pressing plate 43; the second elastic member 42 is compressed and deformed by the pressure of the pressing plate 43, and the connecting plate 41 moves toward the pressing plate 43 under the action of the press.

[0074] The second stage is mainly to achieve the preliminary punching of the workpiece 60. Specifically, the extraction punch 50 continues to move along the first direction, and passes through the workpiece 60 after contacting with the workpiece 60, and then the workpiece 60 generates waste 70 and is discharged through the discharge channel 21 (in this process, the extraction punch 50 will have a relative displacement with the processing through hole 431).

[0075] The third stage is the stamping stage. Specifically, the tooth extraction punch 50 continues to move in the first direction (moves downward), the tooth extraction punch 50 abuts against the die 20, and partially passes through the workpiece 60 to complete the stamping, until the pressing plate 43 abuts against the press, completing the stamping process.

[0076] The fourth stage is the return stage. After completing the punching, the press machine drives the pressing plate 43 and the tooth extraction punch 50 to move in the second direction (upward) until the press machine returns to the initial position (moves in the direction away from the die 20).

[0077] See also Figure 7In some embodiments, the pressing plate 43 is provided with a machining through hole 431 penetrating the pressing plate 43 along the thickness direction, the extraction punch 50 is partially located in the machining through hole 431 , and the diameter of the machining through hole 431 is larger than the diameter of the extraction punch 50 .

[0078] In order to make the tooth extraction punch 50 have a better stamping effect, the pressure plate 43 needs to first abut the processing surface to fix the workpiece 60. In order to facilitate the tooth extraction punch 50 to process the workpiece 60, a processing hole 431 is set, and the tooth extraction punch 50 partially passes through the processing hole 431 on the pressure plate 43; the diameter of the tooth extraction punch 50 is smaller than the diameter of the processing hole 431 to facilitate the movement of the tooth extraction punch 50 in the processing hole 431.

[0079] See also Fig.10 In some embodiments, the tooth extraction punch 50 includes a first portion 52, a second portion 53 and a third portion 54; the first portion 52, the second portion 53 and the third portion 54 are connected in sequence along a direction close to the die 20, the radial dimension of the first portion 52 is greater than the radial dimension of the second portion 53, and the radial dimension of the second portion 53 is greater than the radial dimension of the third portion 54.

[0080] The tapping punch 50 is used to punch holes for products, and the product can be tapped after the holes are punched, so it is called a tapping punch 50. The first part 52, the second part 53, and the third part 54 of the tapping punch 50 are connected in sequence, and the diameter gradually decreases from the first part 52 to the third part 54, so that the tapping punch 50 can have better penetration during processing, and the entire stamping workpiece 60 can be processed at one time.

[0081] The first part 52 is a connecting part, the second part 53 and the third part 54 are processing parts. During the processing (the press moves in the first direction), the third part 54 abuts against the workpiece 60 and penetrates the workpiece 60. When the third part 54 penetrates the workpiece 60, the tooth extraction punch 50 continues to move in the first direction, and the fourth part 55 enters the penetrated workpiece 60 to complete the stamping, thereby realizing the one-time processing of the workpiece 60. When the one-time processing is completed, the burrs and cross-sectional quality problems of the metal workpiece 60 can be reduced during processing, thereby ensuring the product quality. It can also reduce the risk of short circuits caused by the protrusion and fall of waste materials 70 due to vibration, testing, etc. of other parts. One-time processing can also shorten the required length of the tooth extraction punch 50. Reducing the length of the tooth extraction punch 50 can improve the strength and service life of the tooth extraction punch 50.

[0082] In some embodiments, the extraction punch 50 further has a fifth portion 51 , and the radial dimension of the fifth portion 51 is greater than the radial dimension of the first portion 52 , so as to facilitate the connection between the fifth portion 51 and the connecting plate 41 .

[0083] See also Fig.10In some embodiments, a first chamfered structure 56 is formed at a first connection formed by connecting the first portion 52 and the second portion 53 , and / or a second chamfered structure 57 is formed at a second connection formed by connecting the second portion 53 and the third portion 54 .

[0084] The first connection formed by the second part 53 is formed with a first chamfer structure 56 and the second connection is formed with a second chamfer structure 57. The second chamfer structure 57 facilitates the second part 53 to enter the accommodating cavity 12 during the punching process of the tooth extraction punch 50, and can guide the tooth extraction punch 50. The first chamfer structure 56 plays a limiting role, preventing the tooth extraction punch 50 from exceeding the stroke, so that the size of the punched workpiece 60 does not meet the preset size, resulting in the scrapping of the workpiece 60.

[0085] In some embodiments, the extraction punch 50 includes a fourth portion 55 , which is protruding from an end surface of the third portion 54 facing away from the second portion 53 .

[0086] The fourth part 55 can be a positioning piece protruding from the third part 54, which is used to penetrate the workpiece 60 when the tooth extraction punch 50 moves in the first direction, and engage with the discharge channel 21 of the die 20 after penetrating the workpiece 60, which can play a limiting role for the tooth extraction punch 50, so that the tooth extraction punch 50 can punch relatively stably in the subsequent processing, avoiding the workpiece 60 being scrapped due to the shaking of the tooth extraction punch 50 during the processing.

[0087] See also Fig.13 and Fig.14 In some embodiments, the fourth portion 55 includes a first protrusion 551, which is in a strip shape; or the fourth portion 55 includes a first protrusion 551 and a second protrusion 552, which are both in a strip shape, and the first protrusion 551 and the second protrusion 552 are perpendicular to each other, and the first protrusion 551 and the second protrusion 552 are both perpendicular to the end surface of the third portion 54 that is away from the second portion 53.

[0088] In some embodiments, the fourth portion 55 may include only the first protrusion 551. When the fourth portion includes only the first protrusion 551, its structure is as follows: Fig.13 At this time, the die 20 also needs to be set to a "I"-shaped structure to match the structure of the fourth portion 55.

[0089] In other embodiments, the fourth portion 55 may include a first protrusion 551 and a second protrusion 552. When the fourth portion 55 includes the first protrusion 551 and the second protrusion 552, the structure is as follows: Fig.14The "X" shape shown; at this time, the die 20 also needs to be set to a "X" shaped structure to adapt to the structure of the fourth part 55; in other embodiments, the structure of the fourth part 55 can also be a "M" shape or other shapes.

[0090] In some embodiments, the material of the extraction punch 50 can be SKD11 (SKD11 is a high wear-resistant and tough general cold working die steel, high carbon and high chromium alloy tool steel and vacuum degassed refined steel. The steel is pure and has good hardenability with good hardenability and small quenching deformation).

[0091] See also Fig.15 and Fig.16 In some embodiments, the tooth extraction punch 50 includes a first portion 52, a second portion 53, a third portion 54 and a fifth portion 51 that satisfy the following relationship:

[0092] D L B F C V P H Pick up Pick up Pick up LB B-2 3.3 1.6 D+3 Pick up Pick up Pick up LB B-2 2.4 1.2 D+3

[0093] Among them, the numerical unit in the above table is mm, D is the diameter of the first part 52, L is the total length of the tooth extraction punch 50, A is the length of the third part 54, B is the curvature of the second chamfer structure 57, F is the sum of the lengths of the third part 54, the fifth part 51, and the first chamfer structure, C is the length of the second part 53, V is the diameter of the second part 53, P is the diameter of the third part 54, and H is the diameter of the fifth part 51.

[0094] Among them, the values ​​of A, D, L, and B can be determined according to actual needs. Optionally, B can be in the range of 9mm to 19mm, specifically 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm and other values.

[0095] In some embodiments, the stiffness coefficients of the first elastic member 13 and the second elastic member 42 may be 12.9 N / mm or 17.2 N / mm, etc.

[0096] The utility model also discloses a processing device, including a tooth extraction hole mold structure 100. The processing device can avoid the scrapping of the die 20 due to the accumulation of waste materials 70 during the processing process; and can also make the processed workpiece 60 have better mechanical properties.

[0097] In some embodiments, the processing equipment may be a punching machine.

[0098] In some embodiments, the processing equipment has multiple strokes. When the processing equipment is in different strokes, different processing steps are completed. In the utility model, there are 0 stroke, 120 stroke, 150 stroke, and 180 stroke:

[0099] The processing process when the processing equipment is at 0 stroke, 120 stroke, 150 stroke, 180 stroke and 360 stroke is as follows:

[0100] See also Figure 1 At this time, the processing equipment is at 0 stroke: the workpiece 60 is located on the processing surface, and the workpiece 60 is in a state to be processed.

[0101] See also Figure 5 At this time, the processing equipment has a stroke of 120: the press drives the pressing plate 43 to move along the first direction (downward), and the workpiece 60 is fixed between the pressing plate 43 and the processing surface.

[0102] See also Figure 6 At this time, the processing equipment is at a stroke of 150: the press continues to move in the first direction (downward), and the fourth portion 55 of the extraction punch 50 abuts against and penetrates the surface of the workpiece 60 to complete the perforation.

[0103] See also Figure 8 At this time, the processing equipment has a stroke of 180: the press continues to move in the first direction (downward), the third part 54 gradually moves into the hole, and gradually expands the hole to complete the punching of the tooth extraction hole.

[0104] See also Fig. 9 At this time, the processing equipment has a stroke of 360 degrees: the press moves in the second direction (upward), so that the pressing plate 43 and the extraction punch 50 return to the initial position, the workpiece 60 is processed, and waits for the next workpiece 60 to be processed.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0106] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, combinations, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tooth extraction hole mold structure, characterized in that: Including die base and die; The die base has a supporting surface, the supporting surface is used to support the workpiece, the die base is provided with an accommodating cavity, and the accommodating cavity is provided with a first elastic member; The die is movably disposed in the accommodating cavity, the first elastic member is sleeved on the die, a discharge channel is provided in the die, and the discharge channel is configured to discharge waste material dropped from the workpiece when the tooth extraction hole mold structure forms a hole in the workpiece.

2. The tooth extraction hole mold structure according to claim 1, characterized in that: The accommodating cavity includes a first section and a second section, the first section and the second section are sequentially connected in a direction away from the supporting surface, the radial dimension of the first section is smaller than the radial dimension of the second section, and the first elastic member is located in the second section.

3. The tooth extraction hole mold structure according to claim 2, characterized in that: The die comprises a first part, a second part and a limiting portion, the limiting portion connects the first part and the second part, the first part is accommodated in the first section, the second part and the limiting portion are accommodated in the second section, and one end of the first elastic member abuts against the limiting portion and is sleeved on the second part.

4. The tooth extraction hole mold structure according to claim 3, characterized in that: The tooth extraction hole mold structure includes a fixing piece, which is arranged in the second section, the second part passes through the fixing piece, and the other end of the first elastic piece abuts against the fixing piece.

5. The tooth extraction hole mold structure according to claim 1, characterized in that: The discharge channel comprises a first channel and a second channel, the first channel and the second channel are sequentially connected in a direction away from the supporting surface, and a radial dimension of the first channel is smaller than a radial dimension of the second channel.

6. The tooth extraction hole mold structure according to claim 1, characterized in that: The tooth extraction hole die structure comprises a tooth extraction punch and a pressing plate assembly; The tooth extraction punch is arranged on the pressure plate assembly, and the pressure plate assembly can move along a first direction close to the die base so that the tooth extraction punch passes through the workpiece and abuts against the die, and can move along a second direction away from the die base so that the tooth extraction punch is separated from the workpiece and the die.

7. The tooth extraction hole mold structure according to claim 6, characterized in that: The pressing plate assembly comprises a connecting plate, a second elastic member and a pressing plate; The connecting plate is connected to the pressing plate through the second elastic member, the connecting plate is configured to connect to a press, the pressing plate is arranged opposite to the supporting surface, one end of the tooth extraction punch is connected to the press, and the tooth extraction punch can be movably inserted into the pressing plate; The second elastic member is configured such that when the connecting plate drives the extraction punch to form a hole in the workpiece, the second elastic member is compressed to make the pressing plate close to the connecting plate.

8. The tooth extraction hole mold structure according to claim 7, characterized in that: The pressing plate is provided with a machining through hole penetrating the pressing plate along the thickness direction, the tooth extraction punch is partially located in the machining through hole, and the diameter of the machining through hole is larger than the diameter of the tooth extraction punch.

9. The tooth extraction hole mold structure according to claim 6, characterized in that: The tooth extraction punch comprises a first part, a second part and a third part; The first part, the second part and the third part are connected in sequence along a direction close to the die, the radial dimension of the first part is larger than the radial dimension of the second part, and the radial dimension of the second part is larger than the radial dimension of the third part.

10. The tooth extraction hole mold structure according to claim 9, characterized in that: A first chamfered structure is provided at a first connection formed by connecting the first part and the second part, and / or a second chamfered structure is provided at a second connection formed by connecting the second part and the third part.

11. The tooth extraction hole mold structure according to claim 9, characterized in that: The tooth extraction punch includes a fourth portion, and the fourth portion is protruded from the end surface of the third portion away from the second portion.

12. The tooth extraction hole mold structure according to claim 11, characterized in that: The fourth portion includes a first protrusion, and the protrusion is in a strip shape; Or the fourth portion includes a first protrusion and a second protrusion, the first protrusion and the second protrusion are both strip-shaped, the first protrusion and the second protrusion are perpendicular to each other, and the first protrusion and the second protrusion are both perpendicular to the end surface of the third portion away from the second portion.

13. A processing equipment, characterized in that: The invention comprises the tooth extraction hole mould structure as described in any one of claims 1 to 12.

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