Key holder and machine tool for machining a key back

Abstract

The application discloses a key clamp and a machine tool for processing a key back, and comprises a first positioning member, a second positioning member and a third positioning member, wherein the first positioning member is fixedly arranged, the first positioning member is provided with a first positioning convex part, the second positioning member is provided with a second action part, the third positioning member is slidably arranged, the third positioning member is provided with a third positioning convex part, a linkage member is reversely arranged, an elastic member is connected with the linkage member and the third positioning member, and a driving device drives the linkage member to reverse. The key clamp and the machine tool for processing the key back can clamp the key in the width direction first and then in the thickness direction, so that the clamping precision of the key is improved.

Description

Technical Field

[0001] This invention belongs to the field of key processing equipment, specifically relating to a key clamp and a machine tool for processing the back of a key. Background Technology

[0002] like Figure 1 As shown, the existing security door key includes a key handle 91 and a key head 92. The key handle 91 is flat and elongated. Key grooves 911 are provided on both sides of the thickness of the key handle, and the key grooves 911 extend along the length of the key handle 91 and pass through to the end of the key handle 91 opposite to the key head 92. The two sides of the width of the key handle 91 are key backs 912. In addition, in order to adapt to specific locks, the key backs 912 need to be milled to form... Figure 1 The arc shape shown.

[0003] To achieve mechanized processing, the key that needs to be milled is fixed and clamped by a fixture, and then the back of the key is milled by a milling device. Specifically, the existing fixtures are usually of an upper and lower structure. The key is placed in the upper and lower structure fixture, and the width direction is positioned by the protrusion on the fixture cooperating with the key groove. Then, it is fixed by clamping from both the upper and lower parts.

[0004] The problem with the above-mentioned key back milling process is that the protruding part in the fixture is only close to the shape of the key slot. This means that when the fixture and the key are not clamped, the key is loose in the width direction. When the key is clamped in the width direction, there will be a positioning deviation in the width direction, resulting in poor precision of the machined key back, which cannot meet the requirements of high precision keys. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a key clamp that first clamps the key in the width direction and then clamps the key in the thickness direction to improve the clamping accuracy of the key, and a machine tool for processing the back of the key.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A key clamp, characterized in that it comprises: a first positioning member, which is fixedly disposed and has a first positioning protrusion; a second positioning member, which has a second actuating part that moves to approach or move away from the first positioning protrusion; a third positioning member, which is slidably disposed relative to the first positioning member along a first direction and has a third positioning protrusion; a linkage member, which is flipped; an elastic member, which connects the linkage member and the third positioning member respectively; and a driving device, which drives the linkage member to flip; a key to be clamped is inserted along a second direction and the key slot engages with the first positioning protrusion and the third positioning protrusion respectively for pre-positioning; the driving device drives the linkage member to flip so that the third positioning member slides under the action of the elastic member; the sliding third positioning member drives the third positioning protrusion to move and clamp and position the key in the first direction; the linkage member continues to flip so that it drives the second actuating part to move, and the moving second actuating part approaches the first positioning protrusion to clamp and fix the key.

[0008] The present invention is further configured such that: a second positioning protrusion is provided on the second actuating part; a fourth positioning protrusion is provided on the third positioning member; the first positioning protrusion and the third positioning protrusion are aligned, and the second positioning protrusion and the fourth positioning protrusion are aligned; in the key insertion state, the third positioning protrusion and the fourth positioning protrusion are located on both sides of the thickness of the key.

[0009] The present invention is further configured such that: the third positioning member includes a third clamping part and a fourth clamping part, the third positioning protrusion is disposed on the third clamping part, and the fourth positioning protrusion is disposed on the fourth clamping part; the number of the first positioning members is two, and the two first positioning members are arranged at intervals, and the two first positioning members are located on both sides of the third clamping part along the second direction; the second actuating part is provided with two second clamping parts arranged at intervals, and the two second clamping parts are located on both sides of the fourth clamping part along the second direction.

[0010] The present invention is further configured such that: the second positioning member also includes a second mounting part and a second deformation part, the second deformation part connects the second actuating part and the second mounting part, the second mounting part is fixedly set, and the second deformation part deforms to adapt to the movement of the second actuating part when the second actuating part moves.

[0011] The present invention is further configured such that: the elastic element is sheet-shaped and is arranged parallel to the second direction; and / or, the third positioning element is provided with a first mating slot for the elastic element to be inserted; and / or, the linkage element is provided with a second mating slot for the elastic element to be inserted.

[0012] The present invention is further configured to include: a first carrier, a first positioning member, a second positioning member and a third positioning member detachably disposed on the first carrier; and / or, a mounting seat detachably disposed on the linkage member, and an elastic member detachably disposed on the mounting seat; and / or, the driving device is a cylinder.

[0013] A machine tool for processing the back of a key, characterized in that it comprises: a back milling device; the aforementioned key clamp; the back milling device includes: a second carrier; a swing frame, the rotation axis of the swing frame being the same as the second direction; a milling head, the milling head being rotatably mounted on the swing frame, and the rotation axis of the milling head and the rotation axis of the swing frame being non-collinear and parallel to each other; a reciprocating drive mechanism, the reciprocating drive mechanism being used to drive the swing frame to reciprocate; the key to be processed is clamped and fixed by the key clamp, and then the swing frame reciprocates under the action of the reciprocating drive mechanism, so that the rotating milling head passes over the key back and processes the key back into an arc shape.

[0014] The present invention is further configured such that: the reciprocating drive mechanism includes a power motor, an eccentric output component, a linkage rocker arm, a linkage sliding seat, and a linkage swing member; the power motor is used to drive the eccentric output component to rotate, the linkage sliding seat is slidably arranged along a first direction, the two ends of the linkage rocker arm are respectively hinged to the eccentric output component and the linkage sliding seat, and the rotation axis of the linkage rocker arm relative to the eccentric output component and the rotation axis of the output shaft of the power motor are not collinear and are arranged parallel to each other, the linkage swing member is fixedly arranged on the swing frame, and the linkage sliding seat is provided with a linkage slide rail that slides and cooperates with the linkage swing member, the track direction of the linkage slide rail is arranged vertically.

[0015] The invention is further configured such that: an amplitude adjustment slide rail is provided on the eccentric output component, the track direction of the amplitude adjustment slide rail extends radially along the rotation of the output shaft of the power motor, a locking component is provided inside the amplitude adjustment slide rail, and the linkage swing rod is hinged to the locking component.

[0016] The invention is further configured to include a loading rack, a transmission structure, and a deburring device; the number of key clamps is two sets, one set of key clamps is used to cooperate with the milling back device, and the other set of key clamps is used to cooperate with the deburring device; the loading rack includes a loading track and an ejection structure, the loading track extends vertically to allow the keys to be processed to be arranged in the loading track, and the ejection structure is used to push out the keys at the bottom of the loading track; the transmission structure includes a transmission sliding seat, a transmission power structure, and multiple first grippers, the transmission power structure is used to drive the transmission sliding seat to slide back and forth along a first direction, and each of the first grippers is arranged at a distance along the first direction on the transmission sliding seat; the transmission structure is used to transfer the keys on the loading rack to the key clamps corresponding to the milling back device, and to transfer the keys on the key clamps corresponding to the milling back device to the key clamps corresponding to the deburring device.

[0017] By adopting the above technical solution, the key to be clamped is inserted into the key clamp from front to back, and the key slot is pre-positioned by engaging with the first positioning protrusion and the third positioning protrusion respectively. Then, the drive device drives the linkage to flip so that the third positioning member slides under the action of the elastic member. The sliding third positioning member drives the third positioning protrusion to move and clamp and position the key in the left and right direction. Then, while the third positioning member is fixed, the linkage continues to flip to contact and drive the second action part to move. The moving second action part moves downward and approaches the first positioning protrusion to clamp and fix the key. This allows the key to be positioned first in the width direction and then in the thickness direction, thus achieving high-precision positioning. As a result, the subsequent processing of the key back can achieve high-precision processing and prevent processing deviations caused by key positioning deviations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A diagram of a key;

[0020] Figure 2 This is an assembly diagram of Embodiment 1 of the present invention;

[0021] Figure 3 This is a right view of Embodiment 1 of the present invention;

[0022] Figure 4 for Figure 3 Sectional view of AA;

[0023] Figure 5 for Figure 3 Sectional view of BB;

[0024] Figure 6 for Figure 4 Enlarged view of part of the image;

[0025] Figure 7 for Figure 5 Enlarged view of part of the image;

[0026] Figure 8 This is an assembly diagram of a portion of the structure in Embodiment 1 of the present invention;

[0027] Figure 9 This is an exploded view of a portion of the structure in Embodiment 1 of the present invention;

[0028] Figure 10 This is an assembly diagram of Embodiment 2 of the present invention;

[0029] Figure 11 This is an assembly diagram of the milling back device in Embodiment 2 of the present invention;

[0030] Figure 12 This is an assembly diagram of a portion of the milling back device in Embodiment 2 of the present invention;

[0031] Figure 13 This is an exploded view of a portion of the milling device in Embodiment 2 of the present invention;

[0032] Figure 14 This is an assembly drawing of the eccentric output component and the linkage lever in Embodiment 2 of the present invention;

[0033] Figure 15 This is an exploded view of the eccentric output component and the linkage lever in Embodiment 2 of the present invention;

[0034] Figure 16 This is an assembly diagram of the feeding rack in Embodiment 2 of the present invention;

[0035] Figure 17 This is an exploded view of the feeding rack in Embodiment 2 of the present invention;

[0036] Figure 18 This is an assembly diagram of the transmission structure in Embodiment 2 of the present invention;

[0037] Figure 19 This is an assembly diagram of the first gripper in Embodiment 2 of the present invention;

[0038] Figure 20 This is an assembly diagram of a portion of the structure of the first gripper in Embodiment 2 of the present invention;

[0039] Figure 21 This is a schematic diagram of the first and second linkage swing components in Embodiment 2 of the present invention;

[0040] Figure 22 This is an assembly diagram of the second gripper in Embodiment 2 of the present invention;

[0041] Figure 23 This is an assembly diagram of a portion of the structure of the second gripper in Embodiment 2 of the present invention;

[0042] Figure 24 This is an assembly diagram of the deburring device in Embodiment 2 of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. First carrier;

[0045] 11. Linkage component; 12. Elastic component; 13. Drive device; 14. First raised textured part;

[0046] 111. Second mating slot; 112. Mounting base;

[0047] 2. First positioning component;

[0048] 21. The first positioning convex part; 22. The second convex part;

[0049] 3. Second positioning component;

[0050] 31. Second positioning protrusion; 32. Second mounting part; 33. Second deformation part; 34. Second actuating part;

[0051] 341. Second clamping part;

[0052] 4. Third positioning component;

[0053] 41. Third positioning protrusion; 42. Fourth positioning protrusion; 43. Third clamping part; 44. Fourth clamping part; 45. First mating slot;

[0054] 5. Milling back device;

[0055] 51. Second carrier; 52. Swing frame; 53. Milling head; 54. Milling motor; 55. Reciprocating drive mechanism;

[0056] 551. Power motor; 552. Eccentric output component; 553. Linkage rocker arm; 554. Linkage sliding seat; 555. Linkage rocker component;

[0057] 5521, Amplitude adjustment slide rail; 5522, Locking component; 5541, Linkage slide rail;

[0058] 6. Feeding rack;

[0059] 61. Feeding track; 62. Drop plate; 63. Ejection structure;

[0060] 631. Ejector cylinder; 632. Ejector plate;

[0061] 7. Transmission structure;

[0062] 71. Transmission sliding seat; 72. Transmission power structure; 73. First gripper; 74. Second gripper;

[0063] 701. First base; 702. First sliding cylinder; 703. Second base; 704. Second sliding cylinder; 705. Rotary cylinder; 706. Third base; 707. Linkage sliding component; 7081. First linkage swing component; 7082. Second linkage swing component; 7083. First strip groove; 7091. First claw portion; 7092. Second claw portion; 7093. Mating groove;

[0064] 8. Deburring device;

[0065] 81. Third carrier; 82. Deburring sliding seat; 83. Deburring power structure; 84. Tilting frame; 85. Deburring knife; 86. Tilting cylinder;

[0066] 91. Key handle; 92. Key head;

[0067] 911. Key slot; 912. Back of key;

[0068] 10. Rack. Detailed Implementation

[0069] To enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection of the present invention, the present invention will be described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present invention, and are merely a part of the embodiments of the present invention. The specific and direct descriptions of related structures are only for the convenience of understanding the present invention, and the specific features do not necessarily or directly limit the scope of the present invention. Conventional choices and substitutions made by those skilled in the art under the guidance of the present invention should be considered within the scope of protection of the present invention.

[0070] Example 1:

[0071] This invention discloses a key clamp for processing into Figure 1 The key includes a key handle 91 and a key head 92. The key handle 91 is flat and elongated, with its width along the left-right direction, its length along the front-back direction, and its thickness along the vertical direction. Key grooves 911 are provided on the upper and lower sides of the key handle 91, and the key grooves 911 extend along the length of the key handle 91 and penetrate to the end of the key handle 91 away from the key head 92. The two sides of the width of the key handle 91 are key backs 912, which are flat before processing and are formed into an arc shape after processing.

[0072] Here, the left and right directions are defined as the first direction, and the front and back directions are defined as the second direction.

[0073] like Figures 2-9 As shown, the key holder includes:

[0074] First carrier 1;

[0075] The first positioning component 2 is fixedly installed on the upper right side of the carrier by bolts. The first positioning component 2 has a first positioning protrusion 21 protruding upward, and the first positioning protrusion 21 is a strip extending back and forth.

[0076] The second positioning member 3 is disposed on the first carrier 1, and the second positioning member 3 is located above the first positioning member 2 and has a second actuating part 34. The second actuating part 34 moves downward toward the first positioning protrusion 21 or upward away from the first positioning protrusion 21.

[0077] The third positioning component 4 is slidably mounted on the first carrier 1 in the left and right direction by means of a guide rail snap-fit, and the third positioning component 4 has a protruding third positioning protrusion 41.

[0078] Linkage component 11 is long and narrow, and the middle part of linkage component 11 is flipped and installed on the first carrier 1 by means of a plug rod.

[0079] Elastic element 12, elastic element 12 is connected to linkage element 11 and third positioning element 4 respectively; and,

[0080] The drive device 13 is a cylinder. The drive device 13 is fixedly installed on the lower left side of the first carrier 1, and the output shaft of the drive device 13 faces upward and points towards the linkage 11.

[0081] Therefore, the key to be clamped is inserted into the key clamp from front to back, and the key slot 911 is pre-positioned by engaging with the first positioning protrusion 21 and the third positioning protrusion 41 respectively. Then, the drive device 13 drives the linkage 11 to rotate so that the third positioning member 4 slides under the action of the elastic member 12. The sliding third positioning member 4 drives the third positioning protrusion 41 to move and clamp and position the key in the left and right direction. Then, while the third positioning member 4 is fixed, the linkage 11 continues to rotate to contact and drive the second action part 34 to move. The moving second action part 34 moves downward and approaches the first positioning protrusion 21 to clamp and fix the key, so that the key is first positioned in the width direction and then positioned in the thickness direction, that is, high-precision positioning is achieved. Thus, the subsequent processing of the key back 912 can achieve high-precision processing and prevent processing deviations caused by key positioning deviations.

[0082] It should be noted that this fixture is also suitable for other compatible machining processes.

[0083] Preferably, the second actuating part 34 has a second positioning protrusion 31 protruding downwards, and the first positioning protrusion 21 is a strip extending back and forth; and the third positioning member 4 has a fourth positioning protrusion 42; wherein the first positioning protrusion 21 and the third positioning protrusion 41 are aligned, and the second positioning protrusion 31 and the fourth positioning protrusion 42 are aligned; when the key is inserted, the third positioning protrusion 41 and the fourth positioning protrusion 42 are located on both sides of the thickness of the key.

[0084] This allows the first positioning protrusion 21 and the third positioning protrusion 41 to align and engage with the lower key slot 911, and the second positioning protrusion 31 and the fourth positioning protrusion 42 to align and engage with the upper key slot 911. As a result, when the third positioning member 4 moves to the left to clamp the key, it can be subjected to force from both the upper and lower sides, thus improving stability.

[0085] Preferably, the third positioning member 4 includes a lower third clamping part 43 and an upper fourth clamping part 44, with a third positioning protrusion 41 disposed on the third clamping part 43 and a fourth positioning protrusion 42 disposed on the fourth clamping part 44; in addition, there are two first positioning members 2, and the two first positioning members 2 are arranged at intervals, with the two first positioning members 2 located on the front and rear sides of the third clamping part 43; similarly, the second actuating part 34 is provided with two spaced second clamping parts 341, with the two second clamping parts 341 located on the front and rear sides of the fourth clamping part 44.

[0086] Therefore, the two first positioning members 2 cooperate with the key slot 911 on the front and rear sides of the third clamping part 43 through the first positioning protrusion 21, and the two second positioning members 3 cooperate with the key slot 911 on the front and rear sides of the fourth clamping part 44 through the second positioning protrusion 31. Thus, when the third positioning member 4 moves to the left to clamp the key, the middle part is subjected to the leftward force of the third positioning protrusion 41 and the fourth positioning protrusion 42, while the front and rear sides are subjected to the force of the first positioning protrusion 21 and the second positioning protrusion 31, so as to ensure the stability of clamping.

[0087] Preferably, the second positioning member 3 further includes a second mounting part 32 and a second deformation part 33. The second deformation part 33 connects the second actuating part 34 and the second mounting part 32. The second mounting part 32 is fixedly mounted on the first carrier 1 by bolts. The second deformation part 33 has a thin-walled structure and is elastic. So when the linkage member 11 flips and acts on the second actuating part 34, the deformation of the second deformation part 33 adapts to the movement of the second actuating part 34.

[0088] In this embodiment, the elastic element 12 is sheet-shaped and is arranged parallel to each other in the front-back direction; in addition, the upper side of the third positioning element 4 is provided with a first mating slot 45 for the elastic element 12 to be inserted; the lower side of the linkage element 11 is provided with a second mating slot 111 for the elastic element 12 to be inserted, and bolts are provided on the linkage element 11 to lock the elastic element 12.

[0089] Therefore, when the linkage 11 flips, the upper end of the elastic element 12 is fixed, while the lower end, since it is not fixed, can move within the first mating slot 45 to adapt to the movement of the third positioning element 4, and the part of the elastic element 12 between the first mating slot 45 and the second mating slot 111 undergoes bending deformation.

[0090] Preferably, the first positioning element 2, the second positioning element 3, and the third positioning element 4 are detachably mounted on the first carrier 1 by means of bolts or the like, so that different first positioning elements 2, second positioning elements 3, and third positioning elements 4 can be replaced to adapt to different types of keys.

[0091] Preferably, the linkage 11 is detachably provided with a mounting base 112 by means of bolts or the like, and the elastic element 12 is detachably provided with the mounting base 112. This allows the mounting base 112 to be removed from the linkage 11 when the elastic element 12 is irreversibly deformed after long-term use and needs to be replaced, and then the elastic element 12 can be removed and replaced. In addition, if the second mating slot 111 is damaged, the mounting base 112 can be replaced, without the need to replace the entire linkage 11.

[0092] Preferably, in this embodiment, the first carrier 1 is provided with a first raised texture 14, and the bottom of the first positioning member 2 is provided with a second raised texture 22, so that the first positioning member 2 is installed on the first carrier 1 with high precision under the cooperation of the first raised texture 14 and the second raised texture 22. Thus, when the third positioning member 4 clamps the key to the left, as long as the shape and position of the first positioning protrusion 21 are guaranteed, the accuracy of the key clamping can be guaranteed.

[0093] Example 2:

[0094] like Figures 10-24 As shown, the present invention discloses a machine tool for processing the back of a key, including a frame 10 and a component disposed on the frame 10:

[0095] Milling back device 5;

[0096] The key clamp described in Example 1;

[0097] The milling device 5 includes:

[0098] The second carrier 51 is fixedly mounted on the frame 10;

[0099] The swing frame 52 is cylindrical and is rotatably mounted on the second carrier 51 via bearings. The rotation axis of the swing frame 52 is along the front-rear direction.

[0100] The milling head 53 is rotatably mounted on the swing frame 52, and the rotation axis of the milling head 53 and the rotation axis of the swing frame 52 are not collinear and are parallel to each other.

[0101] A milling motor 54 is fixedly mounted on the rear side of the swing frame 52, and the output shaft of the milling motor 54 is connected to the milling head 53 to drive the milling head 53 to rotate.

[0102] Reciprocating drive mechanism 55, the reciprocating drive mechanism 55 is used to drive the swing frame 52 to swing back and forth;

[0103] Specifically, the reciprocating drive mechanism 55 includes a power motor 551, an eccentric output component 552, a linkage rocker arm 553, a linkage sliding seat 554, and a linkage rocker component 555. The power motor 551 is fixedly mounted on the second carrier 51 using bolts or similar methods. The output shaft of the power motor 551 faces forward and is fixedly mounted to the eccentric output component 552 via a key connection. Rotation of the power motor 551 drives the eccentric output component 552 to rotate. The linkage sliding seat 554 is slidably mounted on the second carrier 51 in the left-right direction using a slide rail. The linkage rocker arm 553... The eccentric output component 552 and the linkage sliding seat 554 are respectively hinged at both ends. The rotation axis of the linkage swing rod 553 relative to the rotation axis of the eccentric output component 552 and the rotation axis of the output shaft of the power motor 551 are not collinear and are parallel to each other, so that the rotation of the eccentric output component 552 can drive the linkage sliding seat 554 to slide back and forth. The linkage swing component 555 is fixed to the outer periphery of the swing frame 52 by bolts, and the linkage sliding seat 554 is provided with a linkage slide rail 5541 that slides and cooperates with the linkage swing component 555. The track direction of the linkage slide rail 5541 is arranged vertically.

[0104] The key back 912 needs to be located between the rotation axis of the milling head 53 and the swing bracket 52.

[0105] Therefore, the key to be processed is clamped and fixed by the key clamp, and the key back 912 to be processed is exposed on the right side. Then, under the action of the reciprocating drive mechanism 55, the swing frame 52 swings back and forth so that the rotating milling head 53 passes through the key back 912 and processes the key back 912 into an arc shape. Specifically, the power motor 551 drives the eccentric output component 552 to rotate and the linkage sliding seat 554 to slide back and forth through the linkage swing rod 553. During the reciprocating sliding of the linkage sliding seat 554, the linkage swing component 555 drives the swing frame 52 to swing back and forth through the cooperation of the linkage slide rail 5541.

[0106] Preferably, the eccentric output component 552 is provided with an amplitude adjustment slide rail 5521. The track direction of the amplitude adjustment slide rail 5521 extends radially along the rotation of the output shaft of the power motor 551. A locking component 5522 is provided inside the amplitude adjustment slide rail 5521. The linkage swing rod 553 is hinged to the locking component 5522. Therefore, the swing amplitude of the swing frame 52 can be controlled by adjusting the distance between the locking component 5522 and the output shaft of the power motor 551, thereby adapting to keys of different thicknesses.

[0107] Specifically, the locking component 5522 consists of a front half and a rear half, which are clamped on the front and rear sides of the amplitude adjustment slide rail 5521 and locked with bolts and nuts.

[0108] In addition, the frame 10 is also equipped with a feeding rack 6, a transmission structure 7, and a deburring device 8; there are two sets of key clamps, one set of key clamps is used to cooperate with the milling back device 5, and the other set of key clamps is used to cooperate with the deburring device 8.

[0109] Therefore, the feeding rack 6 is used to provide the keys that need to be processed, and the key on the feeding rack 6 is transferred to the key holder corresponding to the milling back device 5 for milling back through the transmission structure 7, and the key on the key holder corresponding to the milling back device 5 is transferred to the key holder corresponding to the deburring device 8 for deburring.

[0110] Specifically, the loading rack 6 includes a loading track 61, a dropping plate 62, and an ejection structure 63. The loading track 61 extends vertically to allow the keys to be processed to be arranged within it. The dropping plate 62 is located below the loading track 61 so that the keys fall one by one from the lower end of the loading track 61 onto the dropping plate 62. The ejection structure 63 includes an ejection cylinder 631 and an ejection plate 632. The ejection cylinder 631 is fixedly installed below the dropping plate 62, and its output shaft extends and retracts backward. The ejection plate 632 is fixedly installed on the output shaft of the ejection cylinder 631 by bolts, and slides on the upper surface of the dropping plate 62. Therefore, when the ejection cylinder 631 operates, the keys on the dropping plate 62 are ejected forward through the ejection plate 632 for the transmission structure 7 to grasp and transmit.

[0111] Specifically, the transmission structure 7 includes a transmission sliding seat 71, a transmission power structure 72, two first grippers 73, and a second gripper 74. The transmission power structure 72 uses a combination of a motor, screw, and nut to drive the transmission sliding seat 71 to slide back and forth in the left and right direction. The two first grippers 73 are arranged at intervals in the left and right direction on the upper side of the transmission sliding seat 71. The second gripper 74 is located to the right of the first gripper 73 on the right side, and the distance between the second gripper 74 and the first gripper 73 on the right side is the same as the distance between the two first grippers 73.

[0112] Therefore, while the first gripper 73 on the left is gripping the key on the loading rack 6, the first gripper 73 on the right is gripping the key on the key holder corresponding to the milling back device 5, and the second gripper 74 is gripping the key on the key holder corresponding to the deburring device 8. Then, by moving the transmission sliding seat 71, the first gripper 73 on the left is driven to the key holder corresponding to the milling back device 5 for loading, the first gripper 73 on the right is driven to the key holder corresponding to the deburring device 8 for loading, and the second gripper 74 is driven to the unloading position for unloading.

[0113] Specifically, the first gripper 73 includes a first base 701, a first sliding cylinder 702, a second base 703, a second sliding cylinder 704, a rotary cylinder 705, a third base 706, a linkage sliding component 707, a first linkage swing component 7081, a second linkage swing component 7082, a first gripper portion 7091, and a second gripper portion 7092. The first base 701 is fixed to the transmission sliding base 71 by bolts or other means to slide with the transmission sliding base 71. The second base 703 is slidably mounted on the first base 701 in the front-back direction by means of a guide rod and a guide sleeve. The first sliding cylinder 702 is fixedly mounted on the first base 701, and the first sliding cylinder... The output shaft of cylinder 702 is connected to the second seat 703 in a forward direction to drive the second seat 703 to slide back and forth. The second sliding cylinder 704 is fixedly installed on the front side of the rear plate of the second seat 703. The rotary cylinder 705 is fixedly installed on the rear side of the rear plate of the second seat 703, and the output shaft of the second sliding cylinder 704 passes through the rotating seat of the rotary cylinder 705 in a rearward direction and extends and retracts in a forward and backward direction. The rotating seat of the rotary cylinder 705 faces rearward, and the rotation axis is along the forward and backward direction. The third seat 706 is fixedly installed on the rotating seat of the rotary cylinder 705 so that it is driven to rotate by the rotary cylinder 705. The linkage sliding component 707 is rotatably installed on the second sliding cylinder 703 by means of a shaft passing through it. The output shaft of cylinder 704 is driven to slide by the second sliding cylinder 704, and the axis of rotation is perpendicular to the front-back direction. The first linkage swing member 7081 and the second linkage swing member 7082 are arranged in an L-shape, and the middle part of the L-shape of the first linkage swing member 7081 and the second linkage swing member 7082 is hinged to the third seat 706 by means of a shaft, and the axis of rotation is perpendicular to the front-back direction. One end of the L-shape of the first linkage swing member 7081 and the second linkage swing member 7082 is provided with a first strip groove 7083. The first linkage swing member 7081 and the second linkage swing member 7082 are driven to slide by the linkage sliding member 707 through the first strip groove 7083. The shaft is installed to achieve hinge connection. The first claw part 7091 and the second claw part 7092 are slidably disposed on the third seat 706 by means of a sliding rod and a sliding sleeve. The sliding direction of the first claw part 7091 and the second claw part 7092 is perpendicular to the front and back direction. Both the first claw part 7091 and the second claw part 7092 are provided with a mating groove 7093. The other end of the L-shaped first linkage rocker 555 extends into the mating groove 7093 of the first claw part 7091, and the other end of the L-shaped second linkage rocker 555 extends into the mating groove 7093 of the second claw part 7092. The second sliding cylinder 704 works to drive the first claw part 7091 and the second claw part 7092 to open and close.

[0114] Therefore, 1. The first gripper 73 and the second gripper 74, through the operation of the first sliding cylinder 702, drive the second seat 703 to move backward so that the first claw 7091 and the second claw 7092 approach the key. Then, through the operation of the second sliding cylinder 704, the first claw 7091 and the second claw 7092, in conjunction, close to clamp the key. Afterward, the operation of the first sliding cylinder 702 drives the second seat 703 to move forward so that the key is disengaged from the loading rack 6 or the key clamp. Then, through the operation of the transmission power structure 72, the transmission sliding seat 71 slides to the right to transfer the key to the next station. Finally, the operation of the first sliding cylinder 702 drives the second seat 703 to move backward so that the key and the key clamp of the next station are aligned. Then, through the operation of the second sliding cylinder 704, the first claw 7091 and the second claw 7092, in conjunction, separate to release the key and complete the key transfer. 2. For the key clamp The key, after one side is processed, can also be moved backward by the operation of the first sliding cylinder 702 to make the first claw 7091 and the second claw 7092 approach the key. Then, the operation of the second sliding cylinder 704 makes the first claw 7091 and the second claw 7092 close together to clamp the key. After that, the operation of the first sliding cylinder 702 makes the second seat 703 move forward to make the key and the key clamp misalign. Then, the operation of the rotary cylinder 705 makes the first claw 7091 and the second claw 7092 rotate 180° to flip the key. Finally, the operation of the first sliding cylinder 702 makes the second seat 703 move backward to make the key and the key clamp realign. Then, the operation of the second sliding cylinder 704 makes the first claw 7091 and the second claw 7092 separate to release the key and complete the flipping of the key.

[0115] It should be noted that when the same set of key clamps is used to process the back of the key on both sides of the key, the lower protrusion formed by the combination of the first positioning protrusion 21 and the third positioning protrusion 41 on the key clamp needs to be centrally symmetrically arranged with respect to the upper protrusion formed by the combination of the second positioning protrusion 31 and the fourth positioning protrusion 42.

[0116] In addition, since the second gripper 74 does not require flipping the key, the rotary cylinder 705 is not set up, and the third seat 706 is directly set on the second seat 703 so that the linkage sliding member 707 can only move back and forth.

[0117] The deburring device 8 includes a third carrier 81, a deburring sliding seat 82, a deburring power structure 83, a tilting frame 84, a deburring knife 85, and a tilting cylinder 86. The third carrier 81 is fixedly mounted on the frame 10. The deburring sliding seat 82 is slidably mounted on the third carrier 81 in the front-to-back direction. The deburring power structure 83 uses a combination of motor, screw, and nut to control the sliding of the deburring sliding seat 82. The tilting frame 84 is tilted and mounted on the deburring sliding seat 82. The tilting cylinder 86 is used to drive the tilting frame 84 to tilt. The deburring knife 85 is mounted on the tilting frame 84 so that the vertical height of the deburring knife 85 is controlled by the tilting cylinder 86, and the deburring power structure 83 slides the deburring sliding seat 82 back and forth to deburr the key back 912 that needs to be deburred.

[0118] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A key clamp, characterized in that, include: The first positioning member (2) is fixedly set, and the first positioning member (2) is provided with a first positioning protrusion (21). The second positioning member (3) is provided with a second action part (34), which moves closer to or further away from the first positioning protrusion (21). The third positioning member (4) is slidably disposed relative to the first positioning member (2) along the first direction, and the third positioning member (4) is provided with a third positioning protrusion (41). Linkage component (11), wherein the linkage component (11) is configured to be flipped; Elastic element (12), which is connected to linkage element (11) and third positioning element (4) respectively; and, A drive device (13) is used to drive the linkage (11) to rotate; The key to be clamped is inserted along the second direction and the key slot (911) is pre-positioned by engaging with the first positioning protrusion (21) and the third positioning protrusion (41) respectively. The driving device (13) drives the linkage (11) to flip so that the third positioning member (4) slides under the action of the elastic member (12). The sliding third positioning member (4) drives the third positioning protrusion (41) to move and clamp and position the key in the first direction. The linkage (11) continues to flip so that the second action part (34) moves. The moving second action part (34) approaches the first positioning protrusion (21) and clamps and fixes the key. The second action part (34) is provided with a second positioning protrusion (31); The third positioning member (4) is provided with a fourth positioning protrusion (42). The first positioning protrusion (21) and the third positioning protrusion (41) are aligned, and the second positioning protrusion (31) and the fourth positioning protrusion (42) are aligned. When the key is inserted, the third positioning protrusion (41) and the fourth positioning protrusion (42) are located on both sides of the thickness of the key; The third positioning member (4) includes a third clamping part (43) and a fourth clamping part (44), the third positioning protrusion (41) is disposed on the third clamping part (43), and the fourth positioning protrusion (42) is disposed on the fourth clamping part (44); The number of the first positioning member (2) is two, and the two first positioning members (2) are arranged at intervals, and the two first positioning members (2) are located on both sides of the third clamping part (43) along the second direction; The second action part (34) is provided with two spaced second clamping parts (341), which are located on both sides of the fourth clamping part (44) along the second direction; The second positioning member (3) further includes a second mounting part (32) and a second deformation part (33). The second deformation part (33) connects the second actuating part (34) and the second mounting part (32). The second mounting part (32) is fixedly set. The second deformation part (33) deforms to adapt to the movement of the second actuating part (34) when the second actuating part (34) moves. The elastic element (12) is sheet-shaped and is arranged parallel to the second direction; and / or, The third positioning member (4) is provided with a first mating slot (45) for the elastic member (12) to be inserted; and / or, The linkage (11) is provided with a second mating slot (111) for the elastic element (12) to be inserted.

2. The key clamp according to claim 1, characterized in that: It also includes a first carrier (1), wherein the first positioning element (2), the second positioning element (3), and the third positioning element (4) are detachably disposed on the first carrier (1); and / or, The linkage (11) is detachably provided with a mounting base (112), and the elastic element (12) is detachably provided with the mounting base (112); and / or, The drive device (13) is a cylinder.

3. A machine tool for processing the back of a key, characterized in that, include: Milling back device (5); The key clamp according to any one of claims 1-2; The milling device (5) includes: Second carrier (51); The swing frame (52) has the same rotation axis and second direction; A milling head (53) is rotatably mounted on a swing frame (52), and the rotation axis of the milling head (53) and the rotation axis of the swing frame (52) are non-collinear and parallel to each other; A reciprocating drive mechanism (55) is used to drive the swing frame (52) to reciprocate. The key to be processed is clamped and fixed by a key clamp, and then the swing frame (52) swings back and forth under the action of the reciprocating drive mechanism (55) so that the rotating milling head (53) passes through the key back (912) and processes the key back (912) into an arc shape.

4. The machine tool for processing the back of a key according to claim 3, characterized in that: The reciprocating drive mechanism (55) includes a power motor (551), an eccentric output component (552), a linkage rocker arm (553), a linkage sliding seat (554), and a linkage rocker component (555). The power motor (551) is used to drive the eccentric output component (552) to rotate. The linkage sliding seat (554) is slidably arranged along the first direction. The two ends of the linkage swing rod (553) are respectively hinged to the eccentric output component (552) and the linkage sliding seat (554). The rotation axis of the linkage swing rod (553) relative to the eccentric output component (552) and the rotation axis of the output shaft of the power motor (551) are not collinear and are arranged parallel to each other. The linkage swing component (555) is fixedly arranged on the swing frame (52). The linkage sliding seat (554) is provided with a linkage slide rail (5541) that slides and cooperates with the linkage swing component (555). The track direction of the linkage slide rail (5541) is arranged vertically.

5. The machine tool for processing the back of a key according to claim 4, characterized in that: The eccentric output component (552) is provided with an amplitude adjustment slide rail (5521). The track direction of the amplitude adjustment slide rail (5521) extends radially along the rotation of the output shaft of the power motor (551). A locking component (5522) is provided inside the amplitude adjustment slide rail (5521). The linkage swing rod (553) is hinged to the locking component (5522).

6. The machine tool for processing the back of a key according to claim 3, characterized in that: It also includes a feeding rack (6), a conveying structure (7), and a deburring device (8); The number of key clamps is two sets, one set of key clamps is used to cooperate with the milling back device (5), and the other set of key clamps is used to cooperate with the deburring device (8). The loading rack (6) includes a loading track (61) and an ejection structure (63). The loading track (61) extends vertically to allow the keys to be processed to be arranged in the loading track (61). The ejection structure (63) is used to push out the keys at the bottom of the loading track (61). The transmission structure (7) includes a transmission sliding seat (71), a transmission power structure (72), and multiple first grippers (73). The transmission power structure (72) is used to drive the transmission sliding seat (71) to slide back and forth along a first direction. Each of the first grippers (73) is arranged on the transmission sliding seat (71) at a distance along the first direction. The transmission structure (7) is used to transfer the key on the loading rack (6) to the key holder corresponding to the milling back device (5), and to transfer the key on the key holder corresponding to the milling back device (5) to the key holder corresponding to the deburring device (8).

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