Perforating device for invisible appliance

Abstract

The utility model discloses a punching device for an invisible appliance, and relates to the field of invisible appliances, a first clamping head is provided with a cutting piece, the cutting piece comprises a third cutting piece and a first fixing ring, and the first fixing ring is used for adjusting the height of the third cutting piece on the first clamping head; a first clamping plate is detachably connected to the second clamping head and provided with a first containing groove, and the inner diameter of the first containing groove is the same as the outer diameter of the third cutting piece. According to the device, the height of the third cutting piece on the first clamping head is adjusted through the first fixing ring, so that holes can be formed in the buccal surface and the joint surface of the appliance.

Description

Technical Field

[0001] The utility model relates to the field of invisible braces, in particular to a punching device for invisible braces. Background Art

[0002] Invisible braces can meet patients' requirements for aesthetics and comfort, have little stimulation to oral soft tissue, can reduce the number of follow-up visits, can be quickly removed by oneself, and are convenient for maintaining oral hygiene. Compared with fixed braces, they can also reduce pain and emergency situations such as wire piercing the mouth. Invisible braces are increasingly recognized by patients and medical staff due to these advantages.

[0003] The national epidemiological survey on the prevalence of malocclusion based on individual normal bites showed that the prevalence of malocclusion in children and adolescents in my country was 67.82%. Among them, crossbite and lockbite are common malocclusions in my country. The prevalence of anterior crossbite in the deciduous teeth period, replacement teeth period and permanent teeth period was 14.94%, 9.65% and 14.98% respectively; the prevalence of adult lockbite was 9% in males and 7% in females, and the prevalence of second molar orthognathic lockbite in malocclusion patients was 22.84%.

[0004] In actual invisible correction, for patients with malocclusions such as crossbite and lockbite, the bite lock needs to be opened to disengage the crossbite and lockbite teeth that need to be corrected from the occlusal contact, so that these teeth can be moved to the normal position and the correct occlusal relationship can be established. In order to open the bite lock, it is usually necessary to raise the occlusal surface of some teeth, that is, to bond materials such as glass ionomer and resin to increase the occlusal height, so that the crossbite and lockbite teeth can be disengaged from the occlusal contact.

[0005] There are two ways to raise the occlusal surface of teeth with invisible braces. The first way is to design a cavity on the posterior occlusal surface of the invisible braces to wrap the raising material bonded to the posterior occlusal surface. The second way is to make a hole in the posterior occlusal surface of the invisible braces, and the braces do not wrap the raising material. As malocclusions such as crossbite and lockbite are gradually corrected, the raising material is gradually ground off in clinical practice to gradually reduce the raising height. However, it is difficult to accurately predict the change in the height of the raising material due to the cavities on the occlusal surface of the invisible braces in advance. Therefore, the second way, that is, the method of making a hole in the posterior occlusal surface of the invisible braces, is more commonly used and more convenient in clinical practice.

[0006] However, the existing invisible brace punches can usually only punch holes on the buccal and lingual surfaces of the brace. When using the existing punch to punch holes on the occlusal surface, the height of the cutting block is small, which causes the brace to be flattened and damaged during the pressing process. Therefore, clinical practice often uses scissors to carefully cut out the holes or uses a mobile phone to grind the occlusal surface of the brace, which is very time-consuming and easily forms burrs on the edges, affecting wearing comfort.

[0007] Secondly, existing hole punches can only be used for punching holes of one aperture size. However, due to the different occlusal surface areas of different tooth positions, different punching areas are required. When in use, multiple hole punches of different aperture sizes need to be matched, or the aperture needs to be enlarged with scissors or a dental handpiece, which is troublesome to operate and takes a lot of time. Summary of the Invention

[0008] The purpose of the present utility model is to provide a hole punching device for an invisible orthodontic appliance. The first fixing ring is used to adjust the height of the third cutting member on the first clamping head, enabling this structure to open holes on the buccal surface and occlusal surface of the orthodontic appliance.

[0009] This purpose is achieved by the following technical solutions:

[0010] A hole punching device for an invisible orthodontic appliance includes a first clamping head and a second clamping head. A cutting member is provided on the first clamping head. The cutting member includes a third cutting member and a first fixing ring. The first fixing ring is used to adjust the height of the third cutting member on the first clamping head;

[0011] A first clamping plate is detachably connected to the second clamping head. A first receiving groove with an inner diameter the same as the outer diameter of the third cutting member is provided on the first clamping plate.

[0012] When in use, when it is necessary to open a hole on the occlusal surface of the invisible orthodontic appliance, the operator adjusts the height of the third cutting member on the first clamping head through the first fixing ring, increasing the height of the third cutting member on the first clamping head. When punching a hole, the third cutting member on the first clamping head is placed in the occlusal surface of the invisible orthodontic appliance where a hole needs to be punched, and the second clamping head is placed above the occlusal surface of the invisible orthodontic appliance where a hole needs to be punched. By shortening the distance between the first clamping head and the second clamping head, the third cutting member is inserted into the first receiving groove, completing the operation of opening a hole on the occlusal surface of the invisible orthodontic appliance.

[0013] When punching a hole on the buccal surface of the invisible orthodontic appliance, if the third cutting member with a higher height is placed in the occlusal surface of the invisible orthodontic appliance where a hole needs to be punched, there may be a situation where the third cutting member with an increased height cannot be horizontally placed in the occlusal surface of the invisible orthodontic appliance where a hole needs to be punched; if the second clamping head is placed in the occlusal surface of the invisible orthodontic appliance where a hole needs to be punched, and the second clamping head and the third cutting member are placed on the labial buccal surface of the invisible orthodontic appliance where a hole needs to be punched, when shortening the distance between the first clamping head and the second clamping head, it is easy for the third cutting member to pass through the lingual buccal surface of the invisible orthodontic appliance, causing damage to the invisible orthodontic appliance. Therefore, for existing hole punching devices, if directly using a higher third cutting member, it is also not possible to preferably achieve opening holes on both the buccal surface and the occlusal surface of the invisible orthodontic appliance simultaneously.

[0014] Compared with the existing punching device, the inventor adjusts the height of the third cutting member on the first clamping head through the first fixing ring, so that when punching the buccal surface of the invisible orthodontic appliance, the height of the third cutting member on the first clamping head is reduced to achieve rapid punching. When opening a hole on the occlusal surface of the invisible orthodontic appliance, increasing the height of the third cutting member on the first clamping head can not only punch quickly, but also is not easy to damage the invisible orthodontic appliance.

[0015] Based on the above technical features, the height of the third cutting member on the first clamping head can be adjusted through the first fixing ring by various structures.

[0016] The inventor preferably selects a structure. Specifically, the lower end of the first fixing ring is fixedly connected to the first clamping head, and the lower end of the third cutting member is threadedly connected to the inner ring of the first fixing ring.

[0017] When adjusting the height of the third cutting member, by rotating the third cutting member on the first fixing ring, the third cutting member can be moved upward or downward on the first fixing ring, so as to achieve the effect of adjusting the height of the third cutting member on the first clamping head.

[0018] During use, when opening a hole on the occlusal surface of the invisible orthodontic appliance, rotate the third cutting member to move the third cutting member upward on the first fixing ring and increase the height of the third cutting member on the first clamping head. When punching, since the outer diameter of the first fixing ring is greater than the inner diameter of the first receiving groove, the first fixing ring cannot pass through the first receiving groove. The setting of the first fixing ring can also fix the shortened distance between the first clamping head and the second clamping head during punching, so that the height of the first fixing ring is greater than the crown height of the invisible orthodontic appliance. When opening a hole on the occlusal surface of the orthodontic appliance, the orthodontic appliance will not be flattened and damaged.

[0019] Therefore, the structure of the first fixing ring and the third cutting member provided by the inventor can not only quickly and conveniently adjust the height of the third cutting member on the first clamping head, so that the device can be used to open holes on the occlusal surface and buccal surface of the orthodontic appliance, but also can avoid the orthodontic appliance being flattened through the first fixing ring when opening a hole on the occlusal surface of the orthodontic appliance.

[0020] At the same time, a spring rod is arranged between the first clamping head and the second clamping head. The device can also be set so that the shortest length after the spring rod is compressed is greater than the crown height of the invisible orthodontic appliance, further avoiding the distance between the first clamping head and the second clamping head from shrinking, resulting in the orthodontic appliance being flattened.

[0021] On the other hand, the cutting member further includes an annular second cutting member, and the outer ring of the first fixing ring is threadedly connected to the inner ring of the second cutting member;

[0022] The punching device further includes a second clamping plate, which is detachably connected to the second clamping head. A second receiving groove with an inner diameter equal to the outer diameter of the second cutting member is provided on the second clamping plate.

[0023] Therefore, the device further includes a second fixing ring and a third clamping plate. The lower end of the second fixing ring is fixedly connected to the first clamping head. The third cutting member, the second cutting member, and the first fixing ring are all located within the second fixing ring. The first cutting member is threadedly connected to the outer ring of the second fixing ring;

[0024] The third clamping plate is detachably connected to the second clamping head. A third receiving groove with an inner diameter equal to the outer diameter of the first cutting member is provided on the third clamping plate.

[0025] When different-sized holes need to be punched in the orthodontic appliance, the device can rotate the third cutting member or the second cutting member or the first cutting member as required, and match the corresponding first clamping plate or second clamping plate or third clamping plate on the second clamping head to meet the punching requirements for different hole diameters.

[0026] Furthermore, matching the corresponding first clamping plate or second clamping plate or third clamping plate on the second clamping head can be achieved by removing the first clamping plate or second clamping plate or third clamping plate from the second clamping head and then connecting the required first clamping plate or second clamping plate or third clamping plate. However, such an operation is troublesome, and the first clamping plate or second clamping plate or third clamping plate needs to be stored away from the second clamping head, which is prone to loss.

[0027] In response to this, the inventor of the present invention detachably connects a connecting column to the second clamping head. The first clamping plate, the second clamping plate, and the third clamping plate can all rotate circumferentially on the connecting column with the line where the connecting column is located as the axis.

[0028] And, preferably, the length of the first clamping head is greater than the length of the second clamping head. The first clamping plate, the second clamping plate, and the third clamping plate have the same length, and are all less than the length of the second clamping head.

[0029] Therefore, during use, the first clamping plate, the second clamping plate, and the third clamping plate are first located on the second clamping head. When the corresponding first clamping plate or second clamping plate or third clamping plate needs to be matched, the corresponding first clamping plate or second clamping plate or third clamping plate is rotated 180 degrees so that the matched first clamping plate or second clamping plate or third clamping plate is located outside the second clamping head, and the axis of the third receiving groove or the second receiving groove or the first receiving groove coincides with the axis of the third cutting member.

[0030] When the above structure is in use, it is not necessary to remove the first clamping plate, the second clamping plate, and the third clamping plate, which is more convenient for operation and omits the storage step, making it more convenient for long-term use.

[0031] Further, clamping handles are connected to the first clamping head and the second clamping head. During punching, the distance between the first clamping head and the second clamping head can be shortened through the clamping handles to perform punching.

[0032] Preferably, the first fixing ring and the second fixing ring have the same height, the third cutting member, the second cutting member, and the first cutting member have the same height, and the height of the first fixing ring is less than or equal to the height of the third cutting member.

[0033] Preferably, the height of the first fixing ring is less than or equal to the height of the third cutting member. Since the cutting members of this device are relatively small, when the height of the first fixing ring is less than the height of the third cutting member, in the original state, the upper part of the third cutting member is located above the first fixing ring, and the operator can directly act on the upper end of the third cutting member to rotate it, which is easy to operate. When the height of the first fixing ring is equal to the height of the third cutting member, in the original state, the upper parts of the first fixing ring and the third cutting member are on the same straight line. Therefore, grooves are provided above the third cutting member and the second cutting member, and by acting on the grooves, the third cutting member and the second cutting member can be driven to rotate, which is convenient for adjustment.

[0034] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0035] The present utility model relates to a punching device for invisible orthodontic appliances. This device adjusts the height of the third cutting member on the first clamping head through the first fixing ring, enabling this structure to open holes on the buccal surface and occlusal surface of the orthodontic appliance.

[0036] At the same time, the height of the third cutting member on the first clamping head can be adjusted by rotation, and the operation is simple and convenient. The first fixing ring can not only adjust the height of the third cutting member, but also prevent the orthodontic appliance from being flattened when opening holes on the occlusal surface of the orthodontic appliance.

[0037] Secondly, this device also includes a first cutting member and a second cutting member with different sizes, enabling this device to open three different sizes of holes on the orthodontic appliance, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model. In the drawings:

[0039] Figure 1 It is a schematic structural diagram of this device in Embodiment 1;

[0040] Figure 2 It is a schematic structural diagram of the third cutting member in Embodiment 1 when it rotates in a threaded manner on the inner ring of the first fixing ring and moves upward to the second position;

[0041] Figure 3Schematic cross-sectional structure diagram of the cutting piece in Embodiment 2;

[0042] Figure 4 Schematic structure diagram of the cutting piece in Embodiment 2;

[0043] Figure 5 Schematic structure diagram of the operating rod acting in the groove to rotate and move the third cutting piece upward;

[0044] Figure 6 Schematic structure diagram of the first clamping plate, the second clamping plate and the third clamping plate on the connecting column;

[0045] Figure 7 Schematic structure diagram of the first cutting piece moving upward;

[0046] Figure 8 Schematic structure diagram of the upper end of the first cutting piece passing through the third receiving groove;

[0047] Figure 9 Schematic structure diagram of the third cutting piece moving upward;

[0048] Figure 10 Schematic structure diagram of the upper end of the third cutting piece passing through the first receiving groove;

[0049] Figure 11 Schematic structure diagram of the first clamping head and the second clamping head connected with clamping handles.

[0050] Marks in the drawings and corresponding names of parts:

[0051] 1 - First clamping head, 2 - Second clamping head, 3 - First clamping plate, 4 - Second clamping plate, 5 - Third clamping plate, 6 - Second fixing ring, 7 - Second cutting piece, 8 - First fixing ring, 9 - Third cutting piece, 10 - First cutting piece, 11 - Connecting column, 12 - Third receiving groove, 13 - Spring rod, 14 - Second receiving groove, 15 - First receiving groove, 16 - Operating rod, 17 - Groove. Detailed implementation manners

[0052] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to examples and drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and shall not be construed as a limitation to the present utility model.

[0053] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the protection scope of the present utility model.

[0054] Embodiment 1

[0055] As Figure 1 shown, the present device includes a first clamping head 1 and a second clamping head 2. A cutting member is provided on the first clamping head 1. The cutting member includes a third cutting member 9 and a first fixing ring 8. The first fixing ring 8 is used to adjust the height of the third cutting member 9 on the first clamping head 1;

[0056] A first clamping plate 3 is detachably connected to the second clamping head 2. A first receiving groove 15 with an inner diameter equal to the outer diameter of the third cutting member 9 is provided on the first clamping plate 3.

[0057] In some embodiments, the first fixing ring can adjust the height of the third cutting member 9 on the first clamping head 1 through various structures. For example, the lower end of the first fixing ring is connected to the first clamping head, the third cutting member 9 is connected to the first fixing ring, the first fixing ring is a height-adjustable structure, and the first fixing ring drives the third cutting member to move up and down through expansion and contraction, thereby adjusting the height of the third cutting member on the first clamping head.

[0058] In some embodiments, the lower end of the first fixing ring 8 is fixedly connected to the first clamping head 1, and the lower end of the third cutting member 9 is threadedly connected to the inner ring of the first fixing ring 8.

[0059] When it is necessary to open a hole on the occlusal surface of the invisible orthodontic appliance, rotate the third cutting member 9 so that the third cutting member 9 rotates threadedly on the inner ring of the first fixing ring 8 and moves upward to the first position. As Figure 1 shown, the distance between the upper end of the third cutting member 9 and the first clamping head 1 increases. Therefore, when opening a hole on the occlusal surface of the invisible orthodontic appliance, place the third cutting member 9 of the first clamping head 1 in the occlusal surface where the hole needs to be drilled, place the second clamping head 2 above the invisible orthodontic appliance and make it in contact with the occlusal surface of the invisible orthodontic appliance. By shortening the distance between the first clamping head 1 and the second clamping head 2, the upper end of the third cutting member 9 acts on the occlusal surface of the invisible orthodontic appliance and passes through the first receiving groove 15 of the second clamping head 2 to complete the drilling of the occlusal surface of the invisible orthodontic appliance.

[0060] When it is necessary to open a hole on the buccal surface of the invisible orthodontic appliance, rotate the third cutting member 9 so that the third cutting member 9 is threadedly rotated on the inner ring of the first fixing ring 8 and moves upward to the second position. As Figure 2 shown, the second position is located below the first position. Place the third cutting member 9 of the first clamping head 1 horizontally in the occlusal surface where a hole needs to be drilled, and place the second clamping head 2 at the buccal surface of the invisible orthodontic appliance where a hole needs to be opened. By shortening the distance between the first clamping head 1 and the second clamping head 2, the upper end of the third cutting member 9 acts on the buccal surface of the invisible orthodontic appliance and passes through the first receiving groove 15 of the second clamping head 2 to complete the drilling of the buccal surface of the invisible orthodontic appliance.

[0061] In some embodiments, when the third cutting member 9 is threadedly rotated on the inner ring of the first fixing ring 8 and moves upward to the second position, the distance between the upper end of the third cutting member 9 and the first fixing ring 8 is less than the thickness of the invisible orthodontic appliance. When it is necessary to drill a hole in the buccal surface of the invisible orthodontic appliance, place the first receiving groove 15 of the second clamping head 2 in the occlusal surface where a hole needs to be drilled, and place the third cutting member 9 at the buccal surface of the invisible orthodontic appliance where a hole needs to be opened. When shortening the distance between the first clamping head 1 and the second clamping head 2, the third cutting member 9 will not damage the orthodontic appliance.

[0062] In some embodiments, a spring rod 13 is provided between the first clamping head 1 and the second clamping head 2. When the spring rod 13 is shortened to the shortest length, it is greater than the crown height of the invisible orthodontic appliance, further avoiding the orthodontic appliance being flattened when drilling a hole in the occlusal surface of the invisible orthodontic appliance.

[0063] In some embodiments, the height of the first fixing ring is greater than the crown height of the invisible orthodontic appliance, and the outer diameter of the first fixing ring is greater than the inner diameter of the first receiving groove 15. Therefore, when drilling a hole in the occlusal surface of the invisible orthodontic appliance, the orthodontic appliance can be prevented from being flattened.

[0064] Embodiment 2

[0065] Based on the above embodiments, as Figure 3 shown, the cutting member further includes a second fixing ring 6 and an annular second cutting member 7. The outer ring of the first fixing ring 8 is threadedly connected to the inner ring of the second cutting member 7; the lower end of the second fixing ring 6 is fixedly connected to the first clamping head 1. The third cutting member 9, the second cutting member 7, and the first fixing ring 8 are all located within the second fixing ring 6. The outer ring of the second fixing ring 6 is threadedly connected to a first cutting member 10;

[0066] The drilling device further includes a second clamping plate 4 and a third clamping plate 5. The second clamping plate 4 is detachably connected to the second clamping head 2, and a second receiving groove 14 with an inner diameter the same as the outer diameter of the second cutting member 7 is provided on the second clamping plate 4. The third clamping plate 5 is detachably connected to the second clamping head 2, and a third receiving groove 12 with an inner diameter the same as the outer diameter of the first cutting member 10 is provided on the third clamping plate 5.

[0067] As Figure 4 shown, preferably, the first fixing ring 8 and the second fixing ring 6 have the same height, the third cutting member 9, the second cutting member 7 and the first cutting member 10 have the same height, and the height of the first fixing ring 8 is less than or equal to the height of the third cutting member 9.

[0068] Grooves 17 are provided on the upper end surfaces of the third cutting member 9 and the second cutting member 7. When it is necessary to adjust the heights of the third cutting member 9 and the second cutting member 7, the operating rod 16 is placed in the groove 17, and the third cutting member 9 or the second cutting member 7 is rotated by the action of the operating rod 16 in the groove 17, thereby adjusting the heights of the third cutting member 9 and the second cutting member 7, as Figure 5 shown.

[0069] Since the first cutting member 10 is arranged on the outermost side, the operator can directly act on the first cutting member 10 to rotate it, thereby adjusting the height.

[0070] In some embodiments, since epidemiological investigations show that the average occlusal surface dimensions of the crowns of deciduous molars and permanent posterior teeth are as shown in Table 1;

[0071] Table 1

[0072]

[0073] Based on the data in Table 1, the inventor of the present invention sets the outer diameter of the third cutting member 9 to 3 mm - 4 mm; the outer diameter of the second cutting member 7 is 5 mm - 6 mm; the outer diameter of the first cutting member 10 is 7 mm - 8 mm, so as to be suitable for orthodontic operations.

[0074] Traditional punchers are only suitable for punching holes at the edges of orthodontic appliances. Our puncher can not only punch holes at the edges, but also is suitable for punching holes at intermediate positions such as the occlusal surface and buccal surface of orthodontic appliances, increasing the flexibility of clinical application and greatly increasing the usage scenarios. When used for occlusal surface opening, a hole of appropriate size is selected according to the occlusal surface dimensions of the permanent and deciduous posterior teeth of the patient, and it can be used for padding after opening. When used for buccal surface and lingual surface opening, holes can be opened in the middle of the orthodontic appliance for bonding auxiliary devices such as lingual buttons, long traction hooks, and brackets. Since the orthodontic appliance around the auxiliary device is retained, it is beneficial for the orthodontic appliance to wrap the teeth and improve the tooth movement achievement rate. When used for buccal surface and lingual surface opening, holes can also be opened at the edges of the orthodontic appliance. By manually controlling the distance between the edge of the orthodontic appliance and the inside of the hole opener, the area and shape of the punched hole can be controlled, so that the orthodontic appliance does not completely wrap the punched hole.

[0075] In some embodiments, the crown heights of permanent posterior teeth are as shown in Table 2;

[0076] Table 2

[0077]

[0078] According to the data in Table 1, when it is necessary to open a hole on the occlusal surface of the invisible orthodontic appliance, the height after the distance between the first clamping head 1 and the second clamping head 2 is shortened is greater than or equal to 1 cm, which can effectively avoid the problem that the invisible orthodontic appliance is flattened during punching. Based on this, in this embodiment, preferably, the spring rod 13 is shortened to a shortest length greater than or equal to 1 cm. Preferably, the height of the first fixing ring is greater than or equal to 1 cm.

[0079] Embodiment 3

[0080] On the basis of the above embodiment, as Figure 6 shown, a connecting column 11 is detachably connected to the second clamping head 2, and the first clamping plate 3, the second clamping plate 4 and the third clamping plate 5 can all rotate circumferentially on the connecting column 11 with the straight line where the connecting column 11 is located as the axis. And, the length of the first clamping head 1 is greater than the length of the second clamping head 2. The first clamping plate 3, the second clamping plate 4 and the third clamping plate 5 have the same length and are all smaller than the length of the second clamping head 2.

[0081] When it is necessary to open a hole with the size of the first cutting member 10 on the orthodontic appliance, rotate the third clamping plate 5 by 180 degrees on the connecting column 11 to make the axis of the third receiving groove 12 collinear with the axis of the first cutting member 10, and rotate the first cutting member 10 to make the first cutting member 10 move upward, as Figure 7 shown. When punching, reduce the distance between the first clamping head 1 and the second clamping head 2, and the upper end of the first cutting member 10 passes through the third receiving groove 12, as Figure 8 shown, and the punching is completed.

[0082] When it is necessary to open a hole with the size of the third cutting member 9 on the orthodontic appliance, rotate the first clamping plate 3 by 180 degrees on the connecting column 11 to make the axis of the first receiving groove 15 collinear with the axis of the third cutting member 9, and rotate the third cutting member 9 to make the third cutting member 9 move upward, as Figure 9 shown. When punching, reduce the distance between the first clamping head 1 and the second clamping head 2, and the upper end of the third cutting member 9 passes through the first receiving groove 15, as Figure 10 shown, and the punching is completed.

[0083] In some embodiments, as Figure 11 shown, clamping handles are connected to the first clamping head 1 and the second clamping head 2. During use, the operator can adjust the distance between the first clamping head 1 and the second clamping head 2 through the clamping handles.

[0084] The "first", "second", "third", etc. used in this text are only for distinguishing the corresponding components for the sake of clear description, and are not intended to limit any order or emphasize importance, etc. In addition, the term "connection" used in this text, without special explanation, can be directly connected or indirectly connected through other components.

[0085] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A punching device for invisible braces, characterized in that: The invention comprises a first clamping head (1) and a second clamping head (2), wherein a cutting piece is arranged on the first clamping head (1), and the cutting piece comprises a third cutting piece (9) and a first fixing ring (8), and the first fixing ring (8) is used to adjust the height of the third cutting piece (9) on the first clamping head (1); The second clamping head (2) is detachably connected to a first clamping plate (3), and the first clamping plate (3) is provided with a first accommodating groove (15) having an inner diameter that is the same as the outer diameter of the third cutting member (9).

2. A punching device for invisible braces according to claim 1, characterized in that: The lower end of the first fixing ring (8) is fixedly connected to the first clamping head (1), and the lower end of the third cutting piece (9) is threadedly connected to the inner ring of the first fixing ring (8).

3. A punching device for invisible braces according to claim 1, characterized in that: The cutting piece also includes a second cutting piece (7) in the shape of an annulus, the outer ring of the first fixing ring (8) being threadedly connected to the inner ring of the second cutting piece (7); the punching device also includes a second clamping plate (4), the second clamping plate (4) being detachably connected to the second clamping head (2), and a second receiving groove (14) having an inner diameter identical to an outer diameter of the second cutting piece (7) being provided on the second clamping plate (4).

4. A punching device for invisible braces according to claim 3, characterized in that: It also includes a second fixing ring (6) and a third clamping plate (5), the lower end of the second fixing ring (6) is fixedly connected to the first clamping head (1), the third cutting piece (9), the second cutting piece (7) and the first fixing ring (8) are all located inside the second fixing ring (6), and the outer ring of the second fixing ring (6) is threadedly connected to the first cutting piece (10); The third clamping plate (5) is detachably connected to the second clamping head (2), and the third clamping plate (5) is provided with a third accommodating groove (12) having an inner diameter that is the same as the outer diameter of the first cutting member (10).

5. A punching device for invisible braces according to claim 4, characterized in that: The second clamping head (2) is detachably connected to a connecting column (11), and the first clamping plate (3), the second clamping plate (4) and the third clamping plate (5) are all capable of circumferentially rotating on the connecting column (11) with the straight line on which the connecting column (11) is located as an axis.

6. A punching device for invisible braces according to claim 5, characterized in that: The first fixing ring (8) and the second fixing ring (6) have the same height, the third cutting piece (9), the second cutting piece (7) and the first cutting piece (10) have the same height, and the height of the first fixing ring (8) is less than or equal to the height of the third cutting piece (9).

7. The punching device for invisible braces according to claim 1, characterized in that: A spring rod (13) is provided between the first clamping head (1) and the second clamping head (2).

8. The punching device for invisible braces according to claim 1, characterized in that: The first clamping head (1) and the second clamping head (2) are connected with clamping handles.

9. The punching device for invisible braces according to claim 1, characterized in that: The length of the first clamping head (1) is greater than the length of the second clamping head (2).

10. The punching device for invisible braces according to claim 5, characterized in that: The first clamping plate (3), the second clamping plate (4) and the third clamping plate (5) have the same length and are all shorter than the length of the second clamping head (2).

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