Holding member, workpiece unit including same, and method for manufacturing workpiece unit

Abstract

The present invention relates to a holding member, a workpiece unit including same, and a method for manufacturing the workpiece unit and, more specifically, to a holding member for holding a workpiece in a processing device, a workpiece unit including same, and a method for manufacturing the workpiece unit, wherein the holding member comprises: a body part having a shape surrounding the workpiece; and an injection part formed in the body part, and the injection part is formed to penetrate from the outer circumferential surface to the inner circumferential surface of the body part, thus allowing an adhesive to be injected into the injection part formed to penetrate from the outer circumferential surface to the inner circumferential surface of the body part, to thereby enable the holding member to be firmly fixed to the workpiece.

Description

Maintenance absence, workpiece unit including the same, and method for manufacturing the workpiece unit

[0001] The present invention relates to a holding member, a workpiece unit including the same, and a method for manufacturing the workpiece unit, and more particularly, to a holding member that is provided separately from the workpiece and can be firmly fixed to the workpiece by allowing an adhesive to be injected through an injection portion formed to penetrate from the outer peripheral surface to the inner peripheral surface of the body portion, a workpiece unit including the same, and a method for manufacturing the workpiece unit.

[0002] In general, the workpiece is formed from various materials such as ceramics or metals, and is fixedly mounted on a processing device and processed through CAD / CAM processing, so that it can be machined into a three-dimensional (3D) shape product that meets the conditions required in various industrial fields.

[0003] The workpiece processed by the processing device in this way is usually called a blank, and in the dental industry in particular, it is also called a disk.

[0004] Recently, in the dental industry, various types of dental prosthetics are being manufactured by processing disc-shaped workpieces made of zirconia, among other materials.

[0005] In order to process a workpiece into a dental prosthesis, it is important to ensure that the workpiece is firmly clamped to a processing device, such as a jig provided in the processing device. To this end, a step may be formed on the outer surface of the workpiece itself so that the workpiece can be fixedly mounted to the jig of the processing device.

[0006] In relation to such conventional workpieces, a blank for manufacturing dental molded parts is disclosed in Korean Patent Publication No. 10-1980933.

[0007] The prior art is a blank having a plurality of preforms of a dental molded part, said preforms being usable for the production of said dental molded part, said preforms having a size or shape that follows or is adapted to the size or shape of said manufactured dental molded part, said blank having a shape of a substantially circular disc having a diameter of more than 20 mm, and having one or more retaining means (retaining members in the present invention) provided on an outer circumference of said blank for clamping said blank during the production of said dental molded part, said blank being made of glass, glass ceramic or non-sintered, partially sintered or densely sintered ceramic, specifically made of a zirconia material.

[0008] However, this conventional technology has the problem that the retaining means for simple fixation is processed integrally on the circumference of the blank itself, which is a workpiece made of zirconia material, so zirconia material is unnecessarily consumed for the retaining means, and after the prosthesis is processed, such retaining means portion is meaninglessly discarded.

[0009] In addition, the conventional technology has the problem that unnecessary zirconia material is consumed due to the holding means being integrally formed on the outer periphery of the blank, and since such holding means are simply discarded, the overall cost inevitably increases.

[0010] [Prior Art Literature]

[0011] [Patent Document]

[0012] (Patent Document 1) KR 10-1980933 B1

[0013] The present invention has been devised to solve the above-mentioned problem, and its purpose is to provide a holding member that can be firmly fixed to a workpiece by injecting an adhesive through an injection portion formed separately from the workpiece and penetrating from the outer surface to the inner surface of the body portion, a workpiece unit including the same, and a method for manufacturing the workpiece unit.

[0014] The holding member of the present invention for solving the above-described problem is a holding member for holding a workpiece in a processing device, comprising: a body portion having a shape surrounding the workpiece; and an injection portion formed in the body portion; characterized in that the injection portion is formed to penetrate from the outer peripheral surface to the inner peripheral surface of the body portion.

[0015] The workpiece unit of the present invention for solving the above-described problem is characterized by including the above-described holding member; and a workpiece inserted into the hollow portion of the body portion.

[0016] The method for manufacturing a workpiece unit of the present invention for solving the above-described problem is characterized by including an insertion step of inserting a workpiece into a hollow portion of a holding member; and an adhesion step of injecting an adhesive into the injection portion of the holding member to adhere the holding member and the workpiece.

[0017] The maintenance member according to the present invention, the workpiece unit including the same, and the method for manufacturing the workpiece unit have the following advantages.

[0018] According to the present invention, since an adhesive can be injected into an injection portion formed penetrating from the outer surface to the inner surface of the body portion, there is an advantage in that a holding member can be firmly and easily bonded and fixed to a workpiece.

[0019] According to the present invention, the holding member is manufactured separately from the workpiece and is bonded and fixed, and thus has the advantage that the holding member can be manufactured from a different material from the workpiece.

[0020] According to the present invention, when a workpiece is made of zirconia material for processing a dental prosthesis, it has the advantage of being unrelated to the direct processing of the prosthesis and of being able to replace the holding member for simple fixation and mounting on the processing device with an inexpensive plastic material instead of zirconia, thereby preventing waste of zirconia material in advance and thus reducing costs.

[0021] According to the present invention, since the injection groove is connected to the hollow portion in a state in which it is expanded beyond the injection port, the bonding area for the workpiece is expanded, and thus a more solid fixation between the holding member and the workpiece can be achieved, which has the advantage.

[0022] According to the present invention, there is an advantage in that a workpiece can be easily inserted into a hollow space through a tapered portion of a retaining member.

[0023] According to the present invention, since the removal part can be removed from the maintenance member as needed, there is an advantage in that processing of the outer peripheral surface of the workpiece is possible through the incision made by removing the removal part.

[0024] FIG. 1 is a perspective view illustrating a retaining member according to one embodiment of the present invention.

[0025] Fig. 2 is a cross-sectional view taken along the AA portion of Fig. 1.

[0026] Fig. 3 is a cross-sectional view taken along the BB portion of Fig. 1.

[0027] Fig. 4 is a perspective view showing a state in which an injection part of another embodiment is applied to a maintenance member.

[0028] Fig. 5 is an enlarged perspective view of the injection part in Fig. 4.

[0029] Fig. 6 is a perspective view showing a state in which a removal part is formed in Fig. 1.

[0030] Fig. 7 is a perspective view showing a state in which the removal portion in Fig. 6 has been removed and a cut portion has been formed.

[0031] Figure 8 is a perspective view illustrating a workpiece unit according to one embodiment of the present invention.

[0032] Fig. 9 is a cross-sectional view taken along the CC portion of Fig. 8.

[0033] Fig. 10 is a cross-sectional view taken by cutting off the DD portion of Fig. 8.

[0034] Figure 11 is a perspective view showing a workpiece unit to which a retaining member is applied with the removal portion removed and a cut portion formed.

[0035] Figure 12 is a flowchart illustrating a method for manufacturing a workpiece unit according to one embodiment of the present invention.

[0036] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components are given the same reference numbers and redundant descriptions thereof will be omitted.

[0037] As illustrated in FIGS. 1 to 3, a holding member (100, hereinafter referred to as a holding member) according to one embodiment of the present invention may be configured to hold, i.e., fixally mount, a workpiece (200, see FIGS. 8 to 11, hereinafter the same) to be described later on a processing device (not illustrated) capable of CAD / CAM processing.

[0038] Referring to FIGS. 1 to 3, the retaining member (100) may include a body portion (110). The body portion (110) may be formed in a ring shape. That is, the body portion (110) may be provided in a shape that surrounds the workpiece (200). For example, the body portion (110) may be formed in a continuous circular ring shape and may have a circular hollow (111) formed therein in an up-and-down direction. The hollow (111) may be a hole into which the workpiece (200) is inserted. The inner diameter of the body portion (110) may be the diameter of the hollow (111).

[0039] The body part (110) may include an inner surface, an outer surface, an upper surface connecting the upper end of the inner surface and the upper end of the outer surface, and a lower surface connecting the lower end of the inner surface and the lower end of the outer surface. The inner surface of the body part (110) may be the inner circumferential surface of the body part (110), and the outer surface of the body part (110) may be the outer circumferential surface of the body part (110).

[0040] The body (110) may be a circular plastic hoop made of plastic material.

[0041] The inner diameter of the body part (110) can be formed to be larger than the diameter of the workpiece (200), that is, equal to or larger than the diameter of the workpiece (200).

[0042] Referring to FIGS. 1 to 3, the holding member (100) may include an injection portion (120). The injection portion (120) may be formed in the body portion (110) to firmly connect the holding member (100) and the workpiece (200). The injection portion (120) may be formed to penetrate from the outer peripheral surface to the inner peripheral surface of the body portion (110) and may serve as a passage through which an adhesive (G, see FIGS. 9 to 10, the same applies hereinafter) is injected, and may be interposed between the outer surface of the outer peripheral surface of the body portion (110) and the hollow portion (111) and may serve as a medium connecting the outer surface of the body portion (110) and the hollow portion (111).

[0043] The injection portion (120) may be provided by connecting a plurality of holes or grooves having different shapes, and may be formed in a plurality along the circumferential direction of the body portion (110). For example, the injection portion (120) may be provided in four or six numbers, and may be arranged radially in the body portion (110), and the number may vary as needed.

[0044] The injection unit (120) may include an injection port (121) and an injection groove (122).

[0045] The injection port (121) may be an inlet through which adhesive (G) is injected from the outside.

[0046] The injection port (121) may be provided in the form of a circular hole that is concavely formed on the outer surface of the body portion (110) when looking at the outer surface of the body portion (110).

[0047] An injection groove (122) may be connected to the injection port (121). The injection groove (122) may be located between the injection port (121) and the hollow (111). The injection groove (122) may be provided in a form that is not exposed when looking at the outer surface of the body part (110), and is concavely formed on the inner surface of the body part (110) when looking at the inner surface of the body part (110). The injection groove (122) may be connected to the injection port (121) by having the bottom center pierced by the injection port (121).

[0048] The bottom of the injection groove (122) may refer to the inner surface of the injection groove (122) connected to the injection port (121). When viewed from the front, the injection groove (122) is formed in a square shape so that the adhesive (G) injected through the injection port (121) can flow and be filled.

[0049] The injection groove (122) may be formed with the deepest depth at the center of the bottom. In addition, the injection groove (122) may be formed with a rounded surface or an inclined slope so that the depth becomes shallower from the center of the bottom to both sides.

[0050] The injection groove (122) can be connected to the hollow (111) in a state where its width expands from the injection port (121) toward the hollow (111). This is to expand the area where the adhesive (G) within the injection groove (122) adheres to the workpiece (200) inserted into the hollow (111), thereby enabling the holding member (100) and the workpiece (200) to be more firmly fixed together.

[0051] A plurality of injection ports (121) and injection grooves (122) that are connected to each other may be formed along the circumferential direction of the body part (110). For example, four injection ports (121) and four injection grooves (122) that are connected to each other may be provided and arranged radially in the body part (110).

[0052] Meanwhile, as illustrated in FIG. 4, the maintenance member (100) may include an injection part (120') of another embodiment than the injection part (120) of one embodiment of the present invention described above.

[0053] Referring to FIGS. 4 and 5, the injection unit (120') of another embodiment of the present invention may include an injection port (121'), an injection groove (122'), and a communication hole (123').

[0054] The injection port (121') may be an inlet through which adhesive (G) is injected from the outside.

[0055] The injection port (121') may be provided in a concave shape on the outer surface of the body portion (110) when looking at the outer surface of the body portion (110). The injection port (121') may be formed in the shape of a circular hole, but is not limited to a circular shape. The injection port (121') may be substantially the same as the injection port (121) of one embodiment of the present invention. The injection groove (122') may be connected to the injection port (121') through a communication hole (123) to be described later.

[0056] The injection groove (122') may be located between the injection port (121') and the hollow (111). In addition, the injection groove (122') may be located between the upper tapered portion (130) and the lower tapered portion (130) to be described later and spaced apart from each other. The injection groove (122') may be provided in a form that is not exposed when looking at the outer surface of the body portion (110) and is concavely formed on the inner surface of the body portion (110) when looking at the inner surface of the body portion (110). The injection groove (122') may be formed concavely to a depth of approximately 0.1 to 0.3 mm from the inner surface of the body portion (110).

[0057] The injection groove (122') can be connected to the injection port (121') by a communication hole (123) that will be described later at the center of the bottom. The bottom of the injection groove (122') can refer to the inner surface of the injection groove (122) that is connected to the communication hole (123) that will be described later. The injection groove (122') can be filled by the adhesive (G) that is injected through the injection port (121').

[0058] The injection groove (122') may be formed in a square shape when viewed from the front. More specifically, the injection groove (122') may be formed in a rectangular shape that is formed to be long in the horizontal direction, and may be formed to have four corners rounded, but a shape that allows for more firmly fixing between the retaining member (100) and the workpiece (200) is preferred.

[0059] A communication hole (123) may be interposed between the injection port (121') and the injection groove (122'). The communication hole (123) may be a hole for communicating the injection port (121') and the injection groove (122') with each other. The communication hole (123) may have one end (the radially outer end of the retaining member) directly connected to the injection port (121') and the other end (the radially inner end of the retaining member) directly connected to the injection groove (122') so as to communicate the injection port (121') and the injection groove (122') with each other.

[0060] The communication hole (123) may be expanded from the injection port (121') to the injection groove (122'). That is, the communication hole (123) may be formed so that the open area thereof gradually increases from the injection port (121') to the injection groove (122'). For example, the communication hole (123) may be formed to taper into a truncated cone-shaped hole whose diameter gradually increases from the injection port (121') to the injection groove (122'), and accordingly, the adhesive (G) injected into the injection port (121') may be smoothly guided to the injection groove (122') through the communication hole (123).

[0061] The minimum diameter of the communication hole (123) may be the same as the diameter of the injection port (121'), and the maximum diameter of the communication hole (123) may be shorter than the vertical longitudinal length and the horizontal length of the injection groove (122').

[0062] The injection groove (122') can be connected to the hollow (111) in a state that is expanded beyond the injection port (121) and the communication hole (123). The reason for this is to expand the area where the adhesive (G) in the injection groove (122') adheres to the workpiece (200) inserted into the hollow (111), thereby enabling the holding member (100) and the workpiece (200) to be more firmly fixed.

[0063] A plurality of inlet ports (121'), injection grooves (122'), and communication holes (123) that are connected to each other may be formed along the circumferential direction of the body part (110). For example, six inlet ports (121'), injection grooves (122'), and communication holes (123) that are connected to each other may be provided, and may be arranged in a radial shape on the body part (110).

[0064] Referring to FIGS. 1 to 3, the retaining member (100) may include a tapered portion (130). The tapered portion (130) may be provided to easily insert the workpiece (200) into the hollow portion (111) of the body portion (110). The tapered portion (130) may be formed in the body portion (110).

[0065] More specifically, the tapered portion (130) may be formed on at least one of one end and the other end of the inner surface of the body portion (110). For example, the tapered portion (130) may be formed to be inclined across the entire upper circumference of the inner surface of the body portion (110) as an upper tapered portion (130), and may be formed to be inclined across the entire lower circumference of the inner surface of the body portion (110) as a lower tapered portion (130). The tapered portion (130) may be an inlet side facing the hollow (111).

[0066] The upper tapered portion (130) may be formed to slope downward from the radially outer side toward the inner side of the body portion (110), and the lower tapered portion (130) may be formed to slope upward from the radially outer side toward the inner side of the body portion (110). The diameters of the lower ends of the upper tapered portion (130) and the diameters of the lower ends of the lower tapered portion (130) may be formed to be larger than the diameter of the workpiece (200). That is, the tapered portion (130) may be formed so that the upper and lower entrance sides of the hollow (111) are larger than the diameter of the hollow (111), so that when the workpiece (200) is fitted into the hollow (111), the workpiece (200) can be easily guided into the hollow (111).

[0067] Meanwhile, referring to FIGS. 6 and 7, the body part (110) may include a removal part (140). The removal part (140) may be a removable part such that a cut part (141) is formed on one side of the body part (110). The body part (110) may be formed into an overall C-shape (C-type) by removing the removal part (140) as in FIG. 6, if necessary, to form a cut part (141) as in FIG. 7. For example, when processing is required on one side of the outer surface of the workpiece (200), the maintenance member (100) can be inserted and joined to the workpiece (200) with the removal part (140) removed from the body part (110) so that one side of the outer surface of the workpiece (200) can be exposed to the outside through the cut part (141) formed by the removal of the removal part (140).

[0068] The removal portion (140) may be formed in a portion of the body portion (110) where the injection portion (120) is not formed, i.e., between the two injection portions (120) that are closest to each other in the body portion (110). The removal portion (140) may be formed in an arc shape when viewed from a plan view. Both ends of the removal portion (140) (the boundary portions on both sides between the portion that is not removed from the body portion and the portion that is removed) may be formed to be thin or structurally weak so that the removal portion (140) can be easily removed from the body portion (110).

[0069] The removal part (140) may be separately marked to be identifiable. For example, the removal part (140) may be easily identified from the body part (110) by having both ends marked with lines or the entire outer surface marked with a certain color, so that it can be accurately removed as needed.

[0070] The removal part (140) may be formed and applied to the maintenance member (100) illustrated in FIG. 4 according to the aforementioned contents, although not illustrated.

[0071] The maintenance member (100) can be configured as described above, and below, a workpiece unit (10) including the maintenance member (100) described above will be described with reference to the drawings.

[0072] As illustrated in FIGS. 8 to 10, a workpiece unit (10, hereinafter referred to as a workpiece unit) according to one embodiment of the present invention can be provided to create a three-dimensional (3D) shaped product that satisfies the conditions required in various industrial fields.

[0073] The workpiece unit (10) can be processed into a required product through cutting, etc. using CAD / CAM processing, by having its outer periphery, which is the edge side, fixedly mounted on a jig of the processing device. The workpiece unit (10) can be used to manufacture various products, but in one embodiment of the present invention, it can be provided for manufacturing a dental prosthesis.

[0074] Referring to FIGS. 8 to 10, the workpiece unit (10) may include the aforementioned holding member (100). The holding member (100) may correspond to a jig of the processing device by forming a perimeter of the workpiece unit (10). The holding member (100) may be clamped by the jig of the processing device to allow the workpiece unit (10) to be fixedly mounted to the processing device.

[0075] The retaining member (100) serves only to keep the workpiece unit (10) fixedly mounted on the processing device through its connection with the jig of the processing device, and is not a part where direct cutting processing occurs. For each component of the retaining member (100), reference will be made to the previously described content, and a description thereof will be omitted.

[0076] Referring to FIGS. 8 to 10, the workpiece unit (10) may include a workpiece (200). The workpiece (200) may be manufactured and provided separately from the holding member (100).

[0077] The workpiece (200) may be a portion of a dental prosthesis that is directly cut and processed. The workpiece (200) may be provided with a zirconia material that is different from the plastic material holding member (100), and this may become a material for the dental prosthesis.

[0078] The workpiece (200) may be provided as a circular disk. The vertical height of the workpiece (200) may be formed higher than the vertical height of the holding member (100). The diameter of the workpiece (200) may be equal to or smaller than the inner diameter of the holding member (100), and may be formed equal to or smaller than the lowest diameter of the tapered portion (130).

[0079] The workpiece (200) can be fitted into the holding member (100). The workpiece (200) can be inserted into the hollow (111) of the holding member (100) so that the holding member (100) is placed in the center of the outer surface. At this time, the upper part of the workpiece (200) can protrude above the holding member (100), the lower part of the workpiece (200) can protrude below the holding member (100), the outer surface of the workpiece (200) can be in contact with the inner surface of the holding member (100), and the injection groove (122) can face the outer surface of the workpiece (200).

[0080] The maintenance member (100) may be a stepped portion with a stepped shape on the outer surface of the workpiece (200) and may be in a state of protruding radially outward from the outer surface of the workpiece (200).

[0081] The workpiece (200) and the retaining member (100) can be bonded with an adhesive (G) for firm fixation. The adhesive (G) can be an epoxy adhesive, an acrylic adhesive, a silicone adhesive, a urethane adhesive, or the like having a high viscosity of 1,000 cps or more.

[0082] The adhesive (G) can be injected into the injection portion (120) of the holding member (100) and adhered to the workpiece (200). For example, the adhesive (G) can be injected into the injection port (121) through a syringe corresponding to the diameter of the injection port (121), the adhesive (G) injected into the injection port (121) can be guided to the injection groove (122) via the injection port (121), and the adhesive (G) guided to the injection groove (122) can be adhered by contacting and curing the outer peripheral surface portion of the workpiece (200) facing the injection groove (122) while being filled in the injection groove (122).

[0083] As a result, the maintenance member (100) and the workpiece (200) can be firmly fixed to each other by being inserted and bonded to each other, thereby forming a workpiece unit (10).

[0084] Although not shown, the workpiece (200) may be combined with the maintenance member (100) shown in FIG. 4 according to the above-described content to become a workpiece unit (10).

[0085] Meanwhile, as illustrated in FIG. 11, the workpiece unit (10) may be configured by applying a retaining member (100) in which a removal portion (140) is removed to form a cut portion (141).

[0086] Referring to FIG. 11, the workpiece (200) can be inserted into a C-shaped holding member (100) in which a removal portion (140) is optionally removed to form a cut portion (141), and can be combined with the holding member (100) by injecting the aforementioned adhesive (G) through the injection portion (120) to form a workpiece unit (10). Accordingly, one side of the outer circumference of the workpiece (200) can be exposed to the outside without being covered by the holding member (100) through the cut portion (141) formed by the removal of the removal portion (140) from the body portion (110), and one side of the outer circumference of the workpiece (200) exposed to the outside can be processed through the cut portion (141) when the workpiece unit (10) is subsequently fixed to a jig of the processing device corresponding to the C-shaped holding member (100).

[0087] Hereinafter, a method for manufacturing a workpiece unit will be described with reference to the drawings. Descriptions of each component will be omitted as they have been described above, and reference will be made to FIGS. 1 to 11 for the drawing references of each component. FIG. 12 is a flowchart illustrating a method for manufacturing a workpiece unit according to one embodiment of the present invention.

[0088] The method for manufacturing a workpiece unit may include an insertion step (S100). The insertion step (S100) may be a step of inserting a workpiece (200) into a hollow space (111) of a holding member (100). In the insertion step (S100), the workpiece (200) may be easily guided toward the hollow space (111) through a taper portion (130) formed so that the lowest diameter is larger than the diameter of the workpiece (200), thereby inserting the workpiece (200) into the hollow space (111). In the insertion step (S100), the workpiece (200) may be inserted into the holding member (100) in a state where a removal portion (140) is removed from the holding member (100) to form a cut portion (141), if necessary.

[0089] The method for manufacturing a workpiece unit may include a bonding step (S200). The bonding step (S200) may be performed after the insertion step (S100). The bonding step (S200) may be a step of bonding the holding member (100) and the workpiece (200) by injecting an adhesive (G) into the injection port (120) of the holding member (100). In the bonding step (S200), the adhesive (G) is injected into the injection port (121) by a syringe, the injected adhesive (G) is guided to and filled in the injection groove (122), and the adhesive (G) filled in the injection groove (122) is cured while being bonded to the outer surface of the workpiece (200), thereby bonding and fixing the holding member (100) and the workpiece (200).

[0090] The processed material unit (10) can be made through these steps.

[0091] Meanwhile, the method for manufacturing the workpiece unit may include a first heat treatment step (not shown). The first heat treatment step may be performed before the insertion step (S100). The first heat treatment step may be a step of heating and expanding the holding member (100). In the first heat treatment step, the inner diameter of the holding member (100), which is formed to be larger than the diameter of the workpiece (200), may be heated to further increase. When the first heat treatment step is performed, the workpiece (200) can be very easily inserted into the hollow (111) since the hollow (111) of the holding member (100) is further expanded in the subsequent insertion step (S100).

[0092] Meanwhile, the method for manufacturing the workpiece unit may include a second heat treatment step (not shown). The second heat treatment step may be performed after the insertion step (S100) and before the bonding step (S200). The second heat treatment step may be a step of cooling and shrinking the holding member (100). In the second heat treatment step, the holding member (100), which has become larger due to the first heat treatment step, may be cooled to reduce its inner diameter. When the second heat treatment step is performed, the holding member (100) may shrink to a diameter less than that before the first heat treatment step and come into close contact with the outer circumferential surface of the workpiece (200).

[0093] As described above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited thereto, and it is obvious that various modifications and variations can be made within the scope of the technical spirit of the present invention and the equivalent scope of the claims to be described below by a person having ordinary skill in the art to which the present invention pertains.

[0094] [Explanation of symbols]

[0095] 10: Workpiece Unit 100: Maintenance Element

[0096] 110: Body 111: Hollow

[0097] 120: Injection port 121: Injection port

[0098] 122: Injection groove 130: Tapered section

[0099] 140: Removal part 141: Incision part

[0100] 200: Workpiece G: Adhesive

Claims

1. In a holding member for holding a workpiece in a processing device, A body portion having a shape that surrounds the above-mentioned workpiece; Including an injection part formed in the above body part; The above injection part, Formed to penetrate from the outer surface to the inner surface of the above body part, Absence of maintenance.

2. In paragraph 1, The above injection part is formed in multiple numbers along the circumference of the body part, Absence of maintenance.

3. In paragraph 1, The above injection part, An injection port formed concavely on the outer surface of the above body portion; Including an injection groove formed concavely on the inner surface of the above body portion and communicating with the injection port; The above injection port is, Connected to the outside of the above body part, The above injection groove is, Connected to the hollow part of the body in a state expanded beyond the above injection port, Absence of maintenance.

4. In paragraph 1, The above injection part, An injection port formed concavely on the outer surface of the above body portion; An injection groove formed concavely on the inner surface of the above body portion; A communication hole interposed between the injection port and the injection groove to connect the injection port and the injection groove to each other, and expanding from the injection port to the injection groove; The above injection port is, Connected to the outside of the above body part, The above injection groove is, Connected to the hollow part of the body in a state expanded beyond the above communication hole, Absence of maintenance.

5. In paragraph 1, Further comprising a tapered portion formed on at least one of one end and the other end of the inner surface of the body portion; Absence of maintenance.

6. In paragraph 1, The above body part, Includes a removable removal portion that can be cut on one side, The above removal part, In the above body part, formed in a part where the injection part is not formed, Absence of maintenance.

7. Absence of maintenance of any one of the provisions of paragraphs 1 to 6; including a workpiece inserted into the hollow part of the above body; Processed object unit.

8. In paragraph 7, The above maintenance absence is, The inner surface is bonded to the outer surface of the workpiece by the adhesive injected into the above injection part, and is mutually fixed to the workpiece. Processed object unit.

9. Insertion step of inserting a workpiece into the hollow part of the maintenance member; A bonding step for bonding the holding member and the workpiece by injecting an adhesive into the injection part of the holding member; Method for manufacturing a workpiece unit.

10. In paragraph 9, A first heat treatment step of heating and expanding the above-mentioned maintenance member; Further comprising a second heat treatment step of cooling and shrinking the above-mentioned maintenance member; The above first heat treatment step is, is performed before the above insertion step, The second heat treatment step is: which is performed after the above insertion step and before the above bonding step, Method for manufacturing a workpiece unit.

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