Clamping device

Abstract

The present disclosure relates to a clamping device, comprising: a head having a flat joint surface for joining to an object body; an extension part vertically extending from a region of the joint surface; and a first guide part rotatably joined to the outer peripheral surface of the extension part, wherein as the first guide part moves relative to the extension part in a first direction and a second direction opposite to the first direction, the extension part rotates in a circumferential direction, and as the extension part rotates, a first region and a second region of the joint surface of the head are alternately joined to the object body.

Description

Technical Field

[0001] The present disclosure relates to a clamping device. Background Art

[0002] The clamping device can be used to fix and support a substrate in a film forming process or the like. For example, with the clamping device inserted into both side edges of the substrate, a target substance can be transferred onto the substrate.

[0003] At this time, not only the substrate, but also the target substance is transferred onto the heads of the clamping device that fix both side edges of the substrate, so that a film may be formed between the substrate and the heads. In that case, there is a concern that the substrate may be damaged when the substrate is separated from the clamping device after the target substance hardens.

[0004] In addition, if the target substance is repeatedly transferred onto the clamping device to form a thick film, the clamping device will be damaged, so it is necessary to regularly replace the clamping device in the process equipment. Summary of the Invention

[0005] The present disclosure is for providing a clamping device that can reduce the film forming replacement and / or maintenance cycle by using a rotatable T-shaped head.

[0006] According to an embodiment of the present disclosure, the clamping device may include: a head having a flat bonding surface bonded to an object; an extension extending from a region of the bonding surface in a first direction; and a first guide portion rotatably coupled to the extension in a circumferential direction with respect to the extension. As the first guide portion moves with respect to the extension in the first direction and a second direction opposite to the first direction, the extension rotates in the circumferential direction. As the extension rotates, a first region and a second region of the bonding surface of the head are alternately bonded to the object.

[0007] In addition, the clamping device may further include a rotating portion fixedly coupled to the extension, and at least two rotating protrusion portions are formed on an outer circumferential surface of the rotating portion.

[0008] In addition, the first guide portion may include: an upper end unit rotatably coupled to the outer circumferential surface of the rotating portion on one side of the rotating protrusion portion; and a lower end unit rotatably coupled to the outer circumferential surface of the rotating portion on the other side of the rotating protrusion portion.

[0009] In addition, the upper end unit may include a thread line forming at least two hanging platforms at one end facing the lower end unit, and the lower end unit may include a thread line forming at least two hanging platforms at one end facing the upper end unit.

[0010] In addition, it can be that when the first guiding portion moves in the first direction, the rotating convex portion moves from the engaging platform of the lower end unit through the threaded line of the upper end unit to the engaging platform of the upper end unit, and when the first guiding portion moves in the second direction, the rotating convex portion moves from the engaging platform of the upper end unit through the threaded line of the lower end unit to the engaging platform of the lower end unit.

[0011] In addition, it can be that the clamping device further includes: a base portion, disposed flat relative to the ground; a second guiding portion, fixedly coupled to the base portion and forming at least one lifting hole; a lifting member, fixedly coupled to the first guiding portion and having at least one lifting convex portion inserted into the at least one lifting hole; and a pressing portion, disposed in the second direction of the base portion and connected to the base portion in a rotatable manner relative to the base portion.

[0012] In addition, it can be that the base portion includes a base hole penetrating through the base portion, and the rotating portion passes through the base hole and is coupled to the pressing portion in a rotatable manner in the circumferential direction.

[0013] In addition, it can be that the lifting hole is in an elliptical shape extending between a first end portion and a second end portion having different heights relative to the ground, and the lifting convex portion is guided between the first end portion and the second end portion.

[0014] In addition, it can be that the height difference between the first end portion and the second end portion is shorter than the distance between the base portion and the pressing portion.

[0015] In addition, it can be that if an external force in the second direction is applied to the pressing portion, the rotating portion coupled to the pressing portion moves in the second direction.

[0016] In addition, it can be that the pressing portion includes a stopper, and as the pressing portion rotates in the second direction due to the external force, the stopper is coupled to the base portion to limit the rotation angle of the pressing portion.

[0017] In addition, it can be that during the movement of the rotating portion in the second direction, the rotating portion, the first guiding portion coupled to the rotating portion, and the lifting member coupled to the first guiding portion are guided along the lifting hole from the first end portion toward the second end portion.

[0018] In addition, it can be that as the rotating portion moves in the second direction and the first guiding portion is guided along the lifting hole, the first guiding portion moves relatively in the first direction relative to the rotating portion.

[0019] In addition, it is possible that when an external force in the first direction is applied to the pressing portion, the rotating portion coupled to the pressing portion moves in the first direction.

[0020] In addition, it is possible that during the movement of the rotating portion in the first direction, the rotating portion, the first guiding portion coupled to the rotating portion, and the lifting member coupled to the first guiding portion are guided along the lifting hole from the second end portion toward the first end portion.

[0021] In addition, it is possible that as the rotating portion moves in the first direction and the first guiding portion is guided along the lifting hole, the first guiding portion relatively moves in the second direction with respect to the rotating portion.

[0022] In addition, it is possible that the clamping device further includes: a coupling member that extends from one surface of the lifting member in the second direction and forms a first coupling hole; and a connecting rod that is inserted into the first coupling hole and a second coupling hole formed on one side of the pressing portion, thereby coupling the coupling member and the pressing portion in a rotatable manner.

[0023] In addition, it is possible that the extending portion includes at least two rotating protrusion portions formed on the outer circumferential surface.

[0024] Advantages of the Invention

[0025] According to the clamping device of the present disclosure, during the film forming process of the substrate fixed by the clamping device, film formation is formed together on the head of the clamping device, thereby minimizing damage to the clamping device.

[0026] In addition, according to the clamping device of the present disclosure, damage to the head due to excessive film formation is maximally prevented, thereby increasing the replacement cycle of the clamping device and minimizing the cost generated by replacing the clamping device. Description of the Drawings

[0027] Figure 1 is an exploded perspective view of the head, the extending portion, the rotating portion, and the guiding portion included in the clamping device according to an embodiment of the present disclosure.

[0028] Figure 2 Shows Figure 1 The first state of the head, the extending portion, the rotating portion, and the guiding portion shown in.

[0029] Figure 3 Shows Figure 1 The second state of the head, the extending portion, the rotating portion, and the guiding portion shown in.

[0030] Figure 4 Shows Figure 1 The third state of the head, the extending portion, the rotating portion, and the guiding portion shown in.

[0031] Figure 5 Is an exploded perspective view of the head, extension part, and guide part included in the clamping device according to another embodiment of the present disclosure.

[0032] Figure 6 Is a perspective view showing a first state of the clamping device according to an embodiment of the present disclosure.

[0033] Figure 7 Is Figure 6 A side view of the clamping device shown in

[0034] Figure 8 Is a perspective view showing a second state of the clamping device according to an embodiment of the present disclosure.

[0035] Figure 9 Is Figure 8 A side view of the clamping device shown in

[0036] Figure 10 Is a perspective view showing a third state of the clamping device according to an embodiment of the present disclosure.

[0037] Figure 11 Is Figure 10 A side view of the clamping device shown in Detailed Description of the Embodiment

[0038] Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. The same or similar reference numerals are used for the same components in the drawings.

[0039] Figure 1 Is an exploded perspective view of the head, extension part, rotation part, and guide part included in the clamping device according to an embodiment of the present disclosure. Figure 2 Shows Figure 1 A first state of the head, extension part, rotation part, and guide part shown in Figure 3 Shows Figure 1 A second state of the head, extension part, rotation part, and guide part shown in Figure 4 Shows Figure 1 A third state of the head, extension part, rotation part, and guide part shown in

[0040] Referring to Figure 1 , the clamping device 1 according to an embodiment of the present disclosure may include a head 10, an extension part 20, a rotation part 30, and a guide part 40.

[0041] The head 10 may include a flat bonding surface 100 for bonding to an object body (for example, a substrate). The bonding surface 100 may have various shapes such as an oval, a right-angled quadrilateral, a polygon, or an asymmetric shape.

[0042] In one embodiment, in order to prevent the object from being damaged, the edges and corners of the head 10 can be filleted. In the present disclosure, the head 10 having a right-angled quadrilateral shape with filleted edges and corners is shown as an example, but the present disclosure is not limited thereto.

[0043] In the joint surface 100, as a friction member for increasing the friction with the object and / or a buffer member for reducing the impact force applied to the object, for example, rubber or the like can be formed. The head 10 can be formed of a heat-resistant material so as to be able to perform high-temperature treatment of the object, but it is not limited thereto.

[0044] An extension portion 20 extending in the vertical direction (for example, downward D) from a region of the joint surface 100 is formed on the joint surface 100 of the head 10. In one embodiment, the extension portion 20 and the head 10 can be formed integrally or detachably coupled. For example, the extension portion 20 can be detachably coupled to the head 10 by fixing bolts or the like. However, the manner in which the extension portion 20 is detachably connected to the head 10 is not limited thereto.

[0045] The cross-section of the extension portion 20 can have various shapes such as a circular shape, an elliptical shape, or a polygonal shape. In one embodiment, when the cross-section of the extension portion 20 is circular, the extension portion 20 can have a cylindrical shape as a whole. However, the technical idea of the present disclosure is not limited thereto. When the cross-section of the extension portion 20 is formed into an elliptical shape or a polygonal shape, the extension portion 20 can have an elliptical column or a polygonal column shape as a whole.

[0046] In various embodiments of the present disclosure, the extension portion 20 can extend vertically from the central region of the joint surface 100. In such an embodiment, the joint surface 100 can include a first region 101 disposed on one side with respect to the extension portion 20 and a second region 102 disposed on the other side.

[0047] In various embodiments, the areas of the first region 101 and the second region 102 can be the same or different. In addition, the shapes of the first region 101 and the second region 102 can be determined in various ways corresponding to the shape of the head 10.

[0048] In one embodiment, a groove portion 200 can be formed on the outer peripheral surface of the extension portion 20. The groove portion 200 can be formed on a part of the outer peripheral surface of the extension portion 20, for example, can be formed adjacent to the joint surface 100 of the head 10. The groove portion 200 can be formed at a corresponding position in such a manner that one side of the object can be inserted into the groove portion 200 when the object is coupled to the joint surface 100 of the head 10. The shape of the groove portion 200 corresponds to one side of the coupled object, and can prevent damage to the object when the object is coupled to the clamping device 1.

[0049] One end of the extension part 20 is coupled to the coupling surface 100 of the head part 10, and the other end can be inserted into the cavity 300 through one end of the rotation part 30. The rotation part 30 and the extension part 20 extend in the same direction and have an open cavity 300 inside. The extension part 20 is inserted into the cavity 300 inside the rotation part 30. Therefore, the cross-section of the cavity 300 can have a shape corresponding to the cross-sectional shape of the rotation part 30. In one embodiment, when the rotation part 30 has a cylindrical shape, the rotation part 30 can be a cylinder forming a circular cavity 300.

[0050] The extension part 20 can be fixedly coupled inside the cavity 300 of the rotation part 30. In one embodiment, the extension part 20 can include a bolt part 210 protruding outward from the outer circumferential surface of the extension part 20 or coupled to the outer circumferential surface of the extension part 20. In addition, the rotation part 30 can include an insertion part 310 in which at least a part of the outer circumferential surface of the rotation part 30 is cut. The insertion part 310 can be open at one end of the rotation part 30. In such an embodiment, the bolt part 210 of the extension part 20 is inserted and coupled to the insertion part 310 of the rotation part 30, so that the extension part 20 can be fixedly coupled inside the cavity 300 of the rotation part 30.

[0051] However, in various embodiments of the present disclosure, the coupling manner of the extension part 20 and the rotation part 30 is not limited to the above manner. That is, the extension part 20 can be attached to the inner circumferential surface of the cavity 300 or physically coupled to the inside of the cavity 300 using various coupling components.

[0052] In Figures 1 to 4 the embodiment, the bolt part 210 is shown as a hexagon, but the technical idea of the present disclosure is not limited thereto, and the shape of the bolt part 210 is not particularly limited.

[0053] A fixing part 320 protruding outward along the circumference of the rotation part 30 can be provided at the other end of the rotation part 30.

[0054] At least two rotation protruding parts 331, 332 can be provided on the outer circumferential surface of the rotation part 30. The rotation protruding parts 331, 332 can be provided at positions parallel to and opposite to each other along the circumferential direction DR1 (i.e., the counterclockwise direction) of the rotation part 30. As described below, when the rotation part 30 moves in the up and down directions U, D through the guiding part 40, the rotation protruding parts 331, 332 move along the thread lines 431, 441, 432, 442 formed on the guiding part 40 to guide the rotation of the rotation part 30 and can be combined with the engaging platforms 411, 421, 412, 422 to limit the rotation of the rotation part 30.

[0055] In Figures 1 to 4An embodiment is shown in which two rotating protrusions 331 and 332 are provided, but the technical idea of the present disclosure is not limited thereto. That is, in various embodiments, a greater number of rotating protrusions than two may be formed on the outer circumferential surface of the rotating part 30. In addition, the size and shape of the rotating protrusions 331 and 332 are not limited to any size and shape as long as they can move along the thread lines 431, 441, 432, and 442) of the guiding part 40 and can be caught on the catching platforms 411, 421, 412, and 422.

[0056] On the other hand, in Figures 1 to 4 the embodiment of, the extension part 20 and the rotating part 30 are shown as separate components. However, the technical idea of the present disclosure is not limited thereto, and the extension part 20 and the rotating part 30 may be one component and formed integrally. Hereinafter, with reference to Figure 5 one of such embodiments will be described in detail.

[0057] In order to guide the rotation of the rotating part 30, the guiding part 40 may be coupled to the outer circumferential surface of the rotating part 30. The guiding part 40 may include an upper end unit 401 and a lower end unit 402.

[0058] The upper end unit 401 of the guiding part 40 may be coupled to the outer circumferential surface of the rotating part 30 on one side (e.g., above U) of the rotating protrusions 331 and 332 formed on the outer circumferential surface of the rotating part 30, and the lower end unit 402 may be coupled to the outer circumferential surface of the rotating part 30 on the other side (e.g., below D) of the rotating protrusions 331 and 332. The upper end unit 401 and the lower end unit 402 are coupled to the rotating part 30 in a state of being spaced apart from each other, whereby the rotating part 30 can rotate relative to the guiding part 40 and can move in the vertical directions U and D.

[0059] One end of the upper end unit 401 facing the lower end unit 402 may have a thread line shape forming a plurality of catching platforms 411 and 421. For example, one end of the upper end unit 401 may have a thread line shape forming a first catching platform 411 and a second catching platform 421. The thread line may be separated into a first thread line 431 and a second thread line 441 by the first catching platform 411 and the second catching platform 421. That is, it may be that the first thread line 431 extends from the first catching platform 411 in the circumferential direction DR1 toward the second catching platform 421, and the second thread line 441 extends from the second catching platform 421 in the circumferential direction DR1 toward the first catching platform 411.

[0060] In one embodiment, the first latching platform 411 and the second latching platform 421 may be formed parallel to each other along the circumferential direction DR1 and have the same height with respect to the circumferential direction DR1. The height of the first latching platform 411 and the second latching platform 421 with respect to the circumferential direction DR1 only needs to be the height that combines with the rotation protrusions 331 and 332 formed on the rotating part 30 to limit the rotation of the rotation protrusions 331 and 332, and no specific limitation is imposed on its specific value.

[0061] The first latching platform 411 and the second latching platform 421 may be formed at opposite positions along the circumferential direction DR1 of the upper end unit 401. That is, the first latching platform 411 and the second latching platform 421 may be formed at an interval of approximately 180° along the circumferential direction DR1 of the upper end unit 401.

[0062] One end of the lower end unit 402 facing the upper end unit 401 may have a thread shape forming a plurality of latching platforms 412 and 422. That is, one end of the lower end unit 402 may have a shape corresponding to one end of the upper end unit 401.

[0063] The latching platforms 411, 421, 412, and 422 formed at one end of the upper end unit 401 and one end of the lower end unit 402 may be arranged at intervals from each other. For example, the first latching platform 411 of the upper end unit 401 and the first latching platform 412 of the lower end unit 402 may be arranged at an interval of approximately 90° along the circumferential direction DR1 of the guiding part 40. In addition, the first latching platform 412 of the lower end unit 402 and the second latching platform 421 of the upper end unit 401 may be arranged at an interval of approximately 90° along the circumferential direction DR1 of the guiding part 40. In addition, the second latching platform 421 of the upper end unit 401 and the second latching platform 422 of the lower end unit 402 may be arranged at an interval of approximately 90° along the circumferential direction DR1 of the guiding part 40. In addition, the second latching platform 422 of the lower end unit 402 and the first latching platform 411 of the upper end unit 401 may be arranged at an interval of approximately 90° along the circumferential direction DR1 of the guiding part 40.

[0064] In Figures 1 to 4 it is shown that there are two latching platforms 411, 421, 412, and 422 formed on the upper end unit 401 and the lower end unit 402 respectively, but the technical idea of the present disclosure is not limited thereto. In various embodiments, the upper end unit 401 and the lower end unit 402 of the guiding part 40 may respectively form latching platforms corresponding to the number of rotation protrusions 331 and 332 formed on the rotating part 30.

[0065] Hereinafter, with reference to Figures 2 to 4 the operations of the head 10, the extension part 20, the rotating part 30, and the guiding part 40 of the clamping device 1 will be specifically described.

[0066] First, with reference to Figure 2, in the first state, the clamping device 1 is fixedly coupled to the object body (locked state). If the object body is coupled along the coupling direction DR2, the second region 102 of the coupling surface 100 can be coupled to the object body. One side of the object body is inserted into the groove portion 200 of the extension portion 20, so that the outer surface is not damaged and can be stably coupled to the clamping device 1.

[0067] In the first state, it is possible that the first rotation protrusion 331 of the rotation portion 30 is coupled to the second latching table 422 formed on the lower end unit 402 of the guide portion 40, and the second rotation protrusion 332 is coupled to the first latching table 412 formed on the lower end unit 402. Thereby, the rotation of the rotation portion 30 in the circumferential direction DR1 can be restricted.

[0068] If the guide portion 40 moves downward D due to an external force, the first rotation protrusion 331 and the second rotation protrusion 332 can be disengaged from the second latching table 422 and the first latching table 412 of the lower end unit 402, respectively. If the guide portion 40 continues to move downward D due to an external force, the first rotation protrusion 331 and the second rotation protrusion 332 can abut against the thread lines of the upper end unit 401. At this time, the first rotation protrusion 331 can abut against the second thread line 441 of the upper end unit 401, and the second rotation protrusion 332 can abut against the first thread line 431 of the upper end unit 401.

[0069] If the external force continues to act and the guide portion 40 moves downward D, the first rotation protrusion 331 is guided along the second thread line 441 of the upper end unit 401, and the second rotation protrusion 332 is guided along the first thread line 431 of the upper end unit 401. Thereby, the rotation portion 30 can rotate in the circumferential direction DR1. As the rotation portion 30 rotates, the extension portion 20 fixedly coupled to the rotation portion 30 and the head 10 fixedly coupled to the extension portion 20 can rotate in the circumferential direction DR1.

[0070] On the other hand, the rotation direction of the rotation portion 30 can be determined according to the direction of the thread line formed on the guide portion 40. Hereinafter, an embodiment in which the rotation portion 30 rotates in the circumferential direction DR1 will be described as a representative, but in other embodiments, the rotation portion 30 can also be configured to rotate in the opposite direction of the circumferential direction DR1.

[0071] If the first rotation protrusion 331 and the second rotation protrusion 332 guided along the second thread line 441 and the first thread line 431 of the upper end unit 401 face the first latching table 411 and the second latching table 421 of the upper end unit 401, respectively, the movement of the first rotation protrusion 331 and the second rotation protrusion 332 in the circumferential direction DR1 is restricted. In that case, the rotation of the rotation portion 30, the extension portion 20, and the head 10 stops, and the clamping device 1 can become Figure 3 the second state shown in.

[0072] During the transition from the first state to the second state, the first rotation protrusion 331 moves from the second locking table 422 of the lower end unit 402, passes through the second thread 441 of the upper end unit 401, and moves to the first locking table 411 of the upper end unit 401. In addition, during the transition from the first state to the second state, the second rotation protrusion 332 moves from the first locking table 412 of the lower end unit 402, passes through the first thread 431 of the upper end unit 401, and moves to the second locking table 421 of the upper end unit 401.

[0073] Here, the second locking table 422 of the lower end unit 402 and the first locking table 411 of the upper end unit 401 are arranged at approximately 90° along the circumferential direction DR1, and the first locking table 412 of the lower end unit 402 and the second locking table 421 of the upper end unit 401 are arranged at approximately 90° along the circumferential direction DR1. Therefore, during the transition from the first state to the second state, the rotating part 30 can rotate approximately 90° in the circumferential direction DR1.

[0074] If the head 10 rotates approximately 90° by the rotation of the rotating part 30 as described above, the second region 102 can be disengaged from the joining direction DR2 of the object body. In that case, the object body becomes in a separable state (unlocked state) from the clamping device 1.

[0075] If the guide part 40 moves upward U again due to an external force, the first rotation protrusion 331 and the second rotation protrusion 332 can be disengaged from the first locking table 411 and the second locking table 421 of the upper end unit 401, respectively. If the guide part 40 continues to move upward U due to an external force, the first rotation protrusion 331 and the second rotation protrusion 332 can abut against the threads of the lower end unit 402. At this time, the first rotation protrusion 331 can abut against the second thread 442 of the lower end unit 402, and the second rotation protrusion 332 can abut against the first thread 432 of the lower end unit 402.

[0076] If the external force continues to act and causes the guide part 40 to move upward U, the first rotation protrusion 331 is guided along the second thread 442 of the lower end unit 402, and the second rotation protrusion 332 is guided along the first thread 432 of the lower end unit 402. Thereby, the rotating part 30 can rotate in the circumferential direction DR1. As the rotating part 30 rotates, the extension part 20 fixedly coupled to the rotating part 30 and the head 10 fixedly coupled to the extension part 20 can rotate in the circumferential direction DR1.

[0077] If the first rotating protrusion 331 and the second rotating protrusion 332 guided along the second thread 442 and the first thread 432 of the lower end unit 402 face the first engaging platform 412 and the second engaging platform 422 of the lower end unit 402 respectively, the movement of the first rotating protrusion 331 and the second rotating protrusion 332 in the circumferential direction DR1 is restricted. In that case, the rotation of the rotating part 30, the extension part 20 and the head 10 stops, and the clamping device 1 can become Figure 4 the third state shown in

[0078] During the transition from the second state to the third state, the first rotating protrusion 331 moves from the first engaging platform 411 of the upper end unit 401 through the second thread 442 of the lower end unit 402 to the first engaging platform 412 of the lower end unit 402. In addition, during the transition from the second state to the third state, the second rotating protrusion 332 moves from the second engaging platform 421 of the upper end unit 401 through the first thread 432 of the lower end unit 402 to the second engaging platform 422 of the lower end unit 402.

[0079] Here, the first engaging platform 411 of the upper end unit 401 and the first engaging platform 412 of the lower end unit 402 are arranged at approximately 90° along the circumferential direction DR1, and the second engaging platform 421 of the upper end unit 401 and the second engaging platform 422 of the lower end unit 402 are arranged at approximately 90° along the circumferential direction DR1. Therefore, during the transition from the second state to the third state, the rotating part 30 can rotate approximately 90° in the circumferential direction DR1.

[0080] If the head 10 rotates approximately 90° through the rotation of the rotating part 30 as described above, the first area 101 can be arranged in the bonding direction DR2 of the object body. In that case, the object body can be bonded and fixed to the first area 101 (locked state).

[0081] When the object body is bonded to the clamping device 1 and the object substance is transferred, the object body can also be transferred onto the head 10 bonded to the object body. If a thick film is formed by transferring the object substance onto the head 10, the head 10 may be damaged.

[0082] As described above, according to the clamping device 1 of the present disclosure, by applying an external force to the guiding part 40, the head 10 rotates in the circumferential direction DR1, and at the same time, the first area 101 and the second area 102 are alternately bonded to the object body. Therefore, the film caused by the object substance on the head 10 is formed over a relatively wide area, so the rate of increase in its thickness is reduced, and the replacement and / or maintenance cycle of the clamping device 1 can be relatively lengthened.

[0083] Figure 5 is an exploded perspective view of the head, the extension part, and the guiding part included in a clamping device according to another embodiment of the present disclosure.

[0084] Figure 5 The clamping device 1 ' shown in FIG. Figures 1 to 4 Compared with the clamping device 1 described above, the rotating part 30 is omitted. In this embodiment, Figures 1 to 4 The fixing part 320 and the rotation protrusions 331 , 332 of the rotating portion 30 shown in FIG. 1 may be formed at the extending portion 20 .

[0085] Specifically, in Figure 5 In the embodiment shown in FIG. 1 , the extension 20 ′ is Figures 1 to 4 Compared with the extension part 20 shown in FIG. 1 , the extension part 20 further includes a fixing member 220. The fixing member 220 protrudes outward along the circumference at the other end of the extension part 20'.

[0086] In addition, the extension portion 20' and Figures 1 to 4 Compared with the extension portion 20 shown in FIG. 1 , the extension portion 20 further includes rotation protrusions 231 , 232 formed on the outer circumferential surface.

[0087] The rotating protrusions 231 and 232 can be arranged at positions parallel to and opposite to each other along the circumferential direction DR1 (i.e., counterclockwise direction) of the extension portion 20'. As described below, when the extension portion 20' moves in the up and down directions U and D through the guide portion 40, the rotating protrusions 231 and 232 move along the thread lines 431, 441, 432, and 442 formed on the guide portion 40 to guide the rotation of the extension portion 20', and can be combined with the hanging platforms 411, 421, 412, and 422 to limit the rotation of the extension portion 20'.

[0088] exist Figure 5 2 shows an embodiment in which two rotating protrusions 231 and 232 are provided, but the technical concept of the present disclosure is not limited thereto. That is, in various embodiments, more than two rotating protrusions may be formed on the outer peripheral surface of the extension portion 20'. In addition, the size and shape of the rotating protrusions 231 and 232 are not limited as long as they are able to move along the thread lines 431, 441, 432, 442 of the guide portion 40 and can be clamped on the clamping platforms 411, 421, 412, 422.

[0089] Figure 5 The rotation of the extension 20' shown in FIG. Figures 2 to 4 The contents of the description are the same, so the detailed description is omitted.

[0090] Figure 6 is a perspective view showing a first state of a clamping device according to an embodiment of the present disclosure. Figure 7 yes Figure 6 A side view of the clamping device is shown in FIG. Figure 8 is a perspective view showing a second state of the clamping device according to an embodiment of the present disclosure.Figure 9 is Figure 8 a side view of the clamping device shown in Figure 10 a perspective view showing a third state of the clamping device according to an embodiment of the present disclosure. Figure 11 is Figure 10 a side view of the clamping device shown in

[0091] The clamping device 1 according to an embodiment of the present disclosure may include a head 10, an extension part 20, a rotation part 30, and a guide part 40 (hereinafter, a first guide part) described with reference to Figures 1 to 4 In addition, the clamping device 1 may further include a lifting member 60, a second guide part 70, a base part 80, and a pressing part 90.

[0092] The base part 80 may be fixed to hold the clamping device 1 in place by using a frame (not shown) of the clamping device 1 or the like. In one embodiment, the base part 80 may be configured to be movable parallel or perpendicular to the ground or rotatable.

[0093] The base part 80 may have a base hole 800 for accommodating the second guide part 70 described later. The base hole 800 may be formed to penetrate the base part 80 in the up and down directions U and D. The shape and size of the base hole 800 may be determined variously according to the number and shape of the second guide parts 70 accommodated in the base hole 800.

[0094] At the lower end of the base part 80, a coupling part 810 may be provided to rotatably couple the base part 80 and the pressing part 90. In one embodiment, the coupling part 810 may be configured as a plurality of regions vertically extending downward D from one surface of the base part 80. At the lower end of each region, a coupling hole 811 for accommodating a connection rod 910 may be provided. The coupling hole 811 may be formed to penetrate each region of the coupling part 810.

[0095] The pressing part 90 may receive an external force application from a driving part (not shown). The pressing part 90 may be arranged in parallel with the base part 80 in a state where no external force is applied.

[0096] On one side of the pressing part 90, a coupling hole (not shown) for accommodating the connection rod 910 may be provided. The coupling hole may be formed to penetrate the pressing part 90. The connection rod 910 is inserted into the coupling hole 811 formed in the coupling part 810 and the coupling hole of the pressing part 90, so that the coupling part 810 and the pressing part 90 may be rotatably coupled.

[0097] A stopper 900 may be formed at one end of the pressing part 90. The stopper 900 may mean a region extending from one end of the pressing part 90. The stopper 900 may have a shape in which the thickness decreases as it moves away from the pressing part 90, but is not limited thereto.

[0098] The stopper 900 can prevent the pressing part 90 from rotating relative to the base part 80 by more than a certain angle. For example, when the pressing part 90 rotates upward U relative to the coupling part 810, when a preset angle (for example, approximately 60°) is formed between the pressing part 90 and the coupling part 810, the stopper 900 contacts the base part 80, thereby restricting the rotation upward U (refer to Figure 9 ).

[0099] The second guide part 70 can be fixedly coupled to the base part 80. For example, the second guide part 70 is inserted into a base hole 800 provided in the base part 80. The second guide part 70 can be fixedly coupled within the base hole 800. However, the manner in which the second guide part 70 is fixedly coupled to the base part 80 is not limited to the above manner.

[0100] In one embodiment, a plurality of second guide parts 70 can be provided. For example, the plurality of second guide parts 70 can be provided corresponding to the number of lifting protrusion parts 600 formed on the outer circumferential surface of a later-described lifting part 60.

[0101] In one embodiment, the second guide part 70 can be composed of an upper end support part 711, an extension support part 712, and a lower end support part 713.

[0102] A lifting hole 700 for accommodating a later-described lifting protrusion part 600 can be provided in the upper end support part 711. The lifting hole 700 can have an area wider than that of the lifting protrusion part 600 so that the lifting protrusion part 600 accommodated in the lifting hole 700 can move within the lifting hole 700.

[0103] In one embodiment, the lifting hole 700 can be an elliptical shape extending from one end E1 to the other end E2. That is, one end E1 of the lifting hole 700 can be formed closer to the ground than the other end E2. At this time, the height difference between the two ends E1 and E2 of the lifting hole 700 can be set such that the height W1 at which the lifting protrusion part 600 lifts between the two ends E1 and E2 of the lifting hole 700 is smaller than the height W2 at which the rotating part 30 lifts. For example, the height difference between the two ends E1 and E2 of the lifting hole 700 can be smaller than the distance between the base part 80 and the pressing part 90.

[0104] The extension support part 712 can extend downward D on one side of the upper end support part 711. For example, the extension support part 712 can be rod-shaped and extend vertically downward D from one side of the upper end support part 711.

[0105] One end of the extension support portion 712 is coupled to the upper support portion 711, and the other end is coupled to the lower support portion 713. The lower support portion 713 may have a shape that extends perpendicularly with respect to the extension support portion 712. At least a part of the lower support portion 713 is inserted into the base hole 800 of the base portion 80, so that it can be fixedly coupled in the base hole 800. The lower support portion 713 may be attached to the inner surface of the base hole 800, or physically coupled to the inner surface of the base hole 800 through various connecting members.

[0106] The lifting member 60 may be fixedly coupled to the first guide portion 40. For example, the lifting member 60 may be formed in a cylindrical shape surrounding the outer peripheral surface of the first guide portion 40. The first guide portion 40 may be fixedly coupled to the inside of the lifting member 60 and be controlled to move together with the lifting member 60.

[0107] At least one lifting protrusion 600 may be provided on the outer peripheral surface of the lifting member 60. Figures 6 to 11 An example in which two lifting protrusions 600 are provided is shown, but the technical idea of the present disclosure is not limited thereto, and fewer or more lifting protrusions 600 may be provided. When a plurality of lifting protrusions 600 are provided, the lifting protrusions 600 may be provided at positions opposite to each other on the outer peripheral surface of the lifting member 60.

[0108] The lifting protrusion 600 may be inserted into the lifting hole 700 provided in the second guide portion 70. When an external force U upward acts on such a lifting protrusion 600, such a lifting protrusion 600 may be guided and moved along the lifting hole 700. As the lifting protrusion 600 is inserted into the lifting hole 700, the movement of the lifting member 60 and the first guide portion 40 fixedly coupled to the lifting member 60 may be restricted between one end E1 and the other end E2 of the lifting hole 700.

[0109] The rotating portion 30 may penetrate the base hole 800 of the base portion 80 and be rotatably coupled to the pressing portion 90. For example, the fixing member 320 of the rotating portion 30 may be rotatably coupled to the pressing portion 90 with respect to the pressing portion 90.

[0110] The rotating portion 30 can rotate about an axis perpendicular to the ground. That is, as described with reference to Figures 1 to 4 as described, the rotating portion 30 may be arranged to be rotatable in the circumferential direction DR1. The rotating portion 30 may be rotatably coupled to the pressing portion 90 through various coupling members such as an axis and a bolt, and its specific coupling method is not particularly limited.

[0111] As described with reference to Figures 1 to 4 as described, the first guide portion 40 may be rotatably and vertically movably coupled to the outer peripheral surface of the rotating portion 30 in the U and D directions. In addition, the first guide portion 40 is fixedly coupled to the inner surface of the second lifting member 60 as described above.

[0112] The rotating part 30 can perform relative translational motion and relative rotational motion with respect to the base part 80.

[0113] Specifically, in Figure 2 、 Figure 6 and Figure 7 In the first state shown, the object body can be coupled to the first region 102 (locked state) in the coupling surface 100 of the head 10.

[0114] In the first state, by applying an external force of U upward to the pressing part 90 through the driving part, the pressing part 90 can rotate upward around the connecting rod 910. When the pressing part 90 rotates upward, the rotating part 30 coupled to the pressing part 90, the first guiding part 40 coupled to the rotating part 30, and the lifting member 60 fixedly coupled to the first guiding part 40 move upward.

[0115] During the upward movement of the lifting member 60, the lifting protrusion 600 is guided along the lifting hole 700. In that case, the lifting member 60, the first guiding part 40, and the rotating part 30 can be guided from one end E1 to the other end E2 of the lifting hole 700.

[0116] When the stopper 900 of the pressing part 90 is coupled to the base part 80, the pressing part 90 stops rotating. As Figure 8 and Figure 9 shown, the state where the pressing part 90 can be rotated to the maximum extent is defined as the second state.

[0117] During the transition from the first state to the second state, the rotating part 30 can be pressurized upward by a corresponding height W2. As described above, the height W1 by which the lifting protrusion 600 rises between the two ends E1 and E2 of the lifting hole 700 is smaller than the height W2 by which the rotating part 30 rises. Therefore, when the rotating part 30 moves upward by the corresponding height W2, the lifting member 60 and the first guiding part 40 guided by the lifting hole 700 move relatively downward with respect to the rotating part 30.

[0118] If the first guiding part 40 moves downward with respect to the rotating part 30, then as described with reference to Figure 3 the rotating part 30 can rotate approximately 90° in the circumferential direction DR1. In that case, the first region 102 of the head 10 coupled to the object body is disengaged from the object body, and the object body becomes a state where it can be separated from the clamping device 1 (unlocked state).

[0119] If no external force in the upward direction U is applied from the drive unit, then only gravity, i.e., an external force in the downward direction D, is applied as an external force to the pressing unit 90. In that case, the pressing unit 90 can rotate downward D about the connecting rod 910. If the pressing unit 90 rotates downward D, the lifting member 60 fixedly coupled to the pressing unit 90 moves downward D.

[0120] During the period when the lifting member 60 moves downward D, the lifting projection 600 is guided along the lifting hole 700. In that case, the lifting member 60, the first guiding portion 40, and the rotating portion 30 can be guided from the other end E2 of the lifting hole 700 to one end E1.

[0121] If no external force from the drive unit acts, the pressing unit 90 can be arranged in parallel with the base unit 80. This state can be defined as the third state.

[0122] During the transition from the second state to the third state, the rotating portion 30 can descend by a corresponding height W2 in the downward direction D. As described above, the height W1 by which the lifting projection 600 descends between the two ends E1 and E2 of the lifting hole 700 is smaller than the height W2 by which the rotating portion 30 descends. Therefore, when the rotating portion 30 moves downward D by the corresponding height W2, the lifting member 60 and the first guiding portion 40 guided by the lifting hole 700 move relatively upward U with respect to the rotating portion 30.

[0123] If the first guiding portion 40 moves upward U with respect to the rotating portion 30, then as described with reference to Figure 4 the rotating portion 30 can rotate approximately 90° in the circumferential direction DR1. In that case, the second region 101 of the head 10 becomes a state where it can be coupled to the object body, and the object body can be fixed to the clamping device 1 (locked state).

[0124] As described above, the rotating portion 30 translates in the vertical directions U and D with respect to the base unit 80 and rotates in the circumferential direction DR1. During the rotation of the rotating portion 30, the first region 101 and the second region 102 of the bonding surface 100 of the head 10 are alternately coupled to the object body. Therefore, a film caused by the object material is formed on the head 10 over a relatively wide area, so the rate of increase in its thickness decreases, and the replacement and / or maintenance cycle of the clamping device 1 can be made relatively longer.

[0125] Those of ordinary skill in the art to which the present disclosure pertains can understand that, without changing its technical idea or essential features, it can be implemented in other specific forms. Therefore, the embodiments described above should be understood in all respects as being exemplary and not restrictive. The scope of the present disclosure should be construed as being represented by the claimed scope of rights rather than the above detailed description, and all changes or variations derived from the meaning and scope of the scope of rights and their equivalent concepts are included in the scope of the present disclosure.

Claims

1. A clamping device, wherein, Comprising: A head having a flat engaging surface engaged with an object body; An extension extending from a region of the engaging surface in a first direction; A first guiding portion engaged with the extension in a rotatable manner relative to the extension in a circumferential direction; and, A rotating portion fixedly engaged with the extension, and at least two rotating protrusion portions are formed on an outer peripheral surface of the rotating portion, As the first guiding portion moves relative to the extension in the first direction and a second direction opposite to the first direction, the extension rotates in the circumferential direction, As the extension rotates, a first region and a second region of the engaging surface of the head are alternately engaged with the object body.

2. The clamping device according to claim 1, wherein, The first guiding portion includes: An upper end unit rotatably engaged with the outer peripheral surface of the rotating portion on one side of the rotating protrusion portion; and, A lower end unit rotatably engaged with the outer peripheral surface of the rotating portion on the other side of the rotating protrusion portion.

3. The clamping device according to claim 2, wherein, The upper end unit includes a thread line forming at least two hanging platforms at an end facing the lower end unit, The lower end unit includes a thread line forming at least two hanging platforms at an end facing the upper end unit.

4. The clamping device according to claim 3, wherein, When the first guiding portion moves in the first direction, the rotating protrusion portion moves from the hanging platform of the lower end unit through the thread line of the upper end unit to the hanging platform of the upper end unit, When the first guiding portion moves in the second direction, the rotating protrusion portion moves from the hanging platform of the upper end unit through the thread line of the lower end unit to the hanging platform of the lower end unit.

5. The clamping device according to claim 3, wherein, The clamping device further includes: A base portion disposed flat relative to the ground; A second guiding portion fixedly engaged with the base portion and forming at least one lifting hole; A lifting member fixedly engaged with the first guiding portion and having at least one lifting protrusion portion inserted into the at least one lifting hole; and, A pressing portion disposed in the second direction of the base portion and connected to the base portion in a rotatable manner relative to the base portion.

6. The clamping device according to claim 5, wherein, The base portion includes a base hole penetrating the base portion, The rotating portion passes through the base hole and is engaged with the pressing portion in a rotatable manner in the circumferential direction.

7. The clamping device according to claim 6, wherein, The lifting hole is an elliptical shape extending between a first end portion and a second end portion having different heights relative to the ground, The lifting protrusion portion is guided between the first end portion and the second end portion.

8. The clamping device according to claim 7, wherein, A height difference between the first end portion and the second end portion is shorter than a distance between the base portion and the pressing portion.

9. The clamping device according to claim 8, wherein, If an external force in the second direction is applied to the pressing part, the rotating part coupled to the pressing part moves in the second direction.

10. The clamping device according to claim 9, wherein the pressing part includes a stopper, and as the pressing part rotates in the second direction due to the external force, the stopper is coupled to the base part to limit the rotation angle of the pressing part.

11. The clamping device according to claim 9, wherein During the movement of the rotating part in the second direction, the rotating part, the first guiding part coupled to the rotating part, and the lifting member coupled to the first guiding part are guided along the lifting hole from the first end to the second end.

12. The clamping device according to claim 11, wherein As the rotating part moves in the second direction and the first guiding part is guided along the lifting hole, the first guiding part relatively moves in the first direction with respect to the rotating part.

13. The clamping device according to claim 8, wherein If an external force in the first direction is applied to the pressing part, the rotating part coupled to the pressing part moves in the first direction.

14. The clamping device according to claim 13, wherein During the movement of the rotating part in the first direction, the rotating part, the first guiding part coupled to the rotating part, and the lifting member coupled to the first guiding part are guided along the lifting hole from the second end to the first end.

15. The clamping device according to claim 14, wherein As the rotating part moves in the first direction and the first guiding part is guided along the lifting hole, the first guiding part relatively moves in the second direction with respect to the rotating part.

Images