Machining blade wobble plate machine

Abstract

The invention relates to the technical field of machining blade manufacturing, in particular to a machining blade wobble plate machine which comprises a platform, a first cross beam and a second cross beam are fixedly arranged at the top of the platform, an X-axis moving device is arranged at the top of the first cross beam, and two Y-axis moving devices are arranged at the top of the X-axis moving device. A Y-axis moving device is arranged on the platform, a Z-axis moving device is arranged on the Y-axis moving device, a grabbing device is arranged on the Z-axis moving device, two conveying devices used for conveying nail discs and plastic uptake discs respectively are arranged on the platform below the first cross beam and the second cross beam, and a first disc placing device and a second disc placing device are arranged at the two ends of each conveying device respectively. A camera corresponding to the conveying device is arranged on the second cross beam. The disc arranging device replaces manual disc arranging, time and labor are saved, the working efficiency is improved, the quality of machined blades is guaranteed, and the damage probability of the machined blades is reduced.

Description

Technical Field

[0001] This invention relates to the field of machining blade manufacturing technology, specifically a machining blade tray swivel machine. Background Technology

[0002] Machining inserts are essential tools used in the field of mechanical processing and manufacturing for cutting parts.

[0003] During the manufacturing process of cutting blades, after sintering, the blades undergo subsequent processing such as grinding or coating. This requires transferring the blades to designated machining fixtures, and after processing, they must be removed and placed into finished product trays. Currently, manufacturers typically use manual tray placement, which is not only inefficient but also prone to blade drops or scratches, damaging blade quality. Therefore, a machining blade tray placement machine is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a machining blade swivel machine.

[0005] A machining blade tray slab placement machine includes a platform. A first crossbeam and a second crossbeam are fixedly mounted on the top of the platform. An X-axis moving device is mounted on the top of the first crossbeam, and two Y-axis moving devices are mounted on the top of the X-axis moving device. A Z-axis moving device is mounted on the Y-axis moving device, and a gripping device is mounted on the Z-axis moving device. Two conveying devices for conveying nail trays and blister trays are mounted on the platform below the first and second crossbeams. Each conveying device has a first tray placement device and a second tray placement device at its two ends. A camera corresponding to the conveying device is mounted on the second crossbeam.

[0006] Furthermore, X-axis linear motors are fixedly installed at both ends of the X-axis linear guide rail, and X-axis linear sliders that slide and engage with both sides of the X-axis linear guide rail are installed at the output end of the X-axis linear motors.

[0007] Furthermore, the Y-axis moving device includes a Y-axis bracket fixed on the X-axis linear slider, a Y-axis motor fixedly mounted on the Y-axis bracket, a Y-axis lead screw fixedly mounted on the output end of the Y-axis motor, and a Y-axis lead screw nut threadedly connected to the outside of the Y-axis lead screw, with the Y-axis lead screw nut slidingly engaged with the Y-axis bracket.

[0008] Furthermore, the Z-axis moving device includes a Z-axis bracket fixedly connected to the Y-axis lead screw seat, a Z-axis motor fixedly mounted on the Z-axis bracket, a Z-axis lead screw fixedly mounted on the output end of the Z-axis motor, a Z-axis lead screw seat threadedly connected to the outside of the Z-axis lead screw, and the Z-axis lead screw seat slidingly engaging with the Z-axis bracket.

[0009] Furthermore, the gripping device includes a gripping bracket fixedly connected to the Z-axis lead screw seat, a gripping motor fixedly mounted on the gripping bracket, a gripping cylinder fixedly mounted at the bottom of the gripping motor, a lifting cylinder rotatably mounted inside the gripping cylinder fixedly mounted at the output end of the gripping motor, a magnet fixedly mounted at the output end of the lifting cylinder, and a tool groove for cooperating with a machining blade opened at the bottom of the gripping cylinder, with the magnet slidingly engaged with the tool groove.

[0010] Furthermore, the conveying device includes two parallel conveying tracks arranged on the top of the platform. At the two ends of the two conveying tracks, which are close to each other, a conveying active synchronous wheel and a conveying passive synchronous wheel are respectively rotatably arranged. The conveying active synchronous wheel and the conveying passive synchronous wheel are connected by a conveying synchronous belt. A conveying motor is fixedly arranged on the top of the platform. The output end of the conveying drive motor is connected to the conveying active synchronous wheel through a conveying drive belt. The camera is located above the middle of the conveying synchronous belt.

[0011] Furthermore, the first tray placement device includes four cooperating first placement stands. Two first placement stands are fixedly installed at one end of each of the two conveying tracks. A first lifting cylinder is fixedly installed on the top of the platform between the four first placement stands. A first placement seat is fixedly installed on the conveying track. The first placement seat is located between the two first placement stands on the conveying track. A first tray placement cylinder is fixedly installed in the middle of the first placement seat. A first tray placement insert is fixedly installed at the output end of the first tray placement cylinder. First tray placement slide rails are provided on both sides of the first tray placement cylinder and are fixedly connected to the first placement seat. A first tray placement slider is slidably installed on the first tray placement slide rail. The first tray placement slider is fixedly connected to the first tray placement insert.

[0012] Furthermore, the second tray placement device includes four mutually cooperating second placement stands. Two second placement stands are fixedly installed at the other end of each of the two conveying tracks. A second lifting cylinder is fixedly installed on the top of the platform between the four second placement stands. A second lifting support plate is fixedly installed on the top of the second lifting cylinder. Multiple second placement seats are fixedly installed on the conveying tracks. The second placement seat is located between two second placement stands on the conveying tracks. A triangular second placement support block is rotatably installed inside the second placement seat via a rotating shaft. The second placement support block rotatably engages with the inner cavity of the second placement seat.

[0013] In summary, the present invention has the following beneficial effects: This invention discloses a machining blade tray transfer machine for transferring machining blades from a nail tray to a blister tray, or vice versa. This invention replaces manual tray transfer, saving time and labor, improving work efficiency, ensuring the quality of the machining blades, and reducing the likelihood of damage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a machining blade swivel machine according to the present invention. Figure 1 ; Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a three-dimensional structural diagram of a machining blade swivel machine according to the present invention. Figure 2 ; Figure 4 This is a front view of a machining blade swivel machine according to the present invention; Figure 5 This is a side view of a machining blade swivel machine according to the present invention; Figure 6 This is a three-dimensional structural diagram of the gripping device of the present invention; Figure 7 This is a front sectional view of the gripping device of the present invention.

[0015] In the diagram: 1. Platform; 2. Crossbeam 1; 3. X-axis moving device; 31. X-axis linear guide; 32. X-axis linear motor; 33. X-axis linear slider; 4. Y-axis moving device; 41. Y-axis support; 42. Y-axis motor; 43. Y-axis lead screw; 44. Y-axis lead screw nut; 5. Z-axis moving device; 51. Z-axis support; 52. Z-axis motor; 53. Z-axis lead screw; 54. Z-axis lead screw nut; 6. Gripping device; 61. Gripping support; 62. Gripping motor; 63. Gripping cylinder; 64. Lifting cylinder; 65. Magnet; 66. Tool slot; 7. Conveying device; 71. Conveying track; 72. Conveying motor; 73. Conveying... 74 Active synchronous pulley, 75 passive synchronous pulley, 76 synchronous conveyor belt, 77 conveyor drive belt, 8 first tray placement device, 81 first placement stand, 82 first placement seat, 83 first tray placement cylinder, 84 first tray placement insert plate, 85 first tray placement slide rail, 86 first tray placement slider, 87 first lifting cylinder, 9, second placement stand, 91 second placement stand, 92 second placement seat, 93 second placement seat, 94 second placement support block, 95 second lifting cylinder, 96 second lifting support plate, 10 second crossbeam, 11 camera, 12 nail tray, 13 blister tray. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] The following is in conjunction with the appendix Figure 1-7 The present invention will be further described as follows: A machining blade tray-stacking machine includes a platform 1. A first crossbeam 2 and a second crossbeam 10 are fixedly installed on the top of the platform 1. An X-axis moving device 3 is installed on the top of the first crossbeam 2. Two Y-axis moving devices 4 are installed on the top of the X-axis moving device 3. A Z-axis moving device 5 is installed on the Y-axis moving device 4. A gripping device 6 is installed on the Z-axis moving device 5. Two conveying devices 7 are installed on the platform 1 below the first crossbeam 2 and the second crossbeam 10, respectively for conveying nail trays 12 and blister trays 13. A first tray-laying device 8 and a second tray-laying device 9 are respectively installed at both ends of the conveying devices 7. A camera 11 corresponding to the conveying devices 7 is installed on the second crossbeam 10.

[0018] In this embodiment, a machining blade tray transfer machine is used to transfer machining blades in the nail tray 12 to the blister tray 13, or vice versa.

[0019] Two conveying devices 7 are used to convey nail trays 12 and blister trays 13, respectively. One conveying device 7 has a first tray placement device 8 containing multiple nail trays 12 equipped with machining blades, and a second tray placement device 9 for placing empty nail trays 12 after the machining blades have been transferred. The other conveying device 7 has a first tray placement device 8 containing multiple empty blister trays 13, and a second tray placement device 9 for placing blister trays 13 after the machining blades have been transferred.

[0020] One conveying device 7 transports the nail tray 12 containing machining blades from the first tray placement device 8 to below one of the cameras 11, while the other conveying device 7 transports the empty blister tray 13 from the first tray placement device 8 to below the other camera 11. Based on the images from the two cameras 11, the controller controls the X-axis moving device 3, Y-axis moving device 4, and Z-axis moving device 5 to move the gripping device 6 to a designated position, picking up the machining blades from the nail tray 12 and moving them into the blister tray 13. The gripping device 6 can adjust its angle based on the images of the machining blades captured by the cameras 11. Preferably, the controller is a further application of prior art in this invention, and will not be described in detail further.

[0021] The conveying device 7 includes two parallel conveying tracks 71 arranged on the top of the platform 1. The two ends of the two conveying tracks 71, which are close to each other, are respectively equipped with a conveying active synchronous wheel 73 and a conveying passive synchronous wheel 74. The conveying active synchronous wheel 73 and the conveying passive synchronous wheel 74 are connected by a conveying synchronous belt 75. A conveying motor 72 is fixedly arranged on the top of the platform 1. The output end of the conveying drive motor 72 is connected to the conveying active synchronous wheel 73 through a conveying drive belt 76. The camera 11 is located above the middle of the conveying synchronous belt 75.

[0022] In this embodiment, the output end of the conveyor motor 72 rotates and drives the conveyor drive belt 76 to drive the conveyor active synchronous pulley 73 to rotate. The conveyor active synchronous pulley 73, in cooperation with the conveyor passive synchronous pulley 74, drives the conveyor synchronous belt 75 to rotate. The conveyor synchronous belt 75 conveys the nail tray 12 and the blister tray 13.

[0023] The first tray placement device 8 includes four cooperating first placement stands 81. Two first placement stands 81 are fixedly installed at one end of each of the two conveying tracks 71. A first lifting cylinder 87 is fixedly installed on the top of the platform 1 between the four first placement stands 81. A first placement seat 82 is fixedly installed on the conveying track 71. The first placement seat 82 is located between the two first placement stands 81 on the conveying track 71. A first tray placement cylinder 83 is fixedly installed in the middle of the first placement seat 82. A first tray placement insert plate 84 is fixedly installed at the output end of the first tray placement cylinder 83. First tray placement slide rails 85 are fixedly connected to the first placement seat 82 on both sides of the first tray placement cylinder 83. A first tray placement slider 86 is slidably installed on the first tray placement slide rail 85. The first tray placement slider 86 is fixedly connected to the first tray placement insert plate 84.

[0024] In this embodiment, multiple nail trays 12 equipped with machining blades and multiple empty blister trays 13 are respectively placed between four mutually cooperating first placement stands 81 on two conveying devices 7.

[0025] The output end of the first lifting cylinder 87 extends, driving multiple nail trays 12 equipped with machining blades or multiple empty blister trays 13 to rise, so that the joint of the two lowest nail trays 12 or blister trays 13 is aligned with the first tray placement plate 84. At this time, the lowest nail trays 12 or blister trays 13 do not contact the conveyor synchronous belt 75.

[0026] The output end of the first tray-laying cylinder 83 extends, and through the cooperation of the first tray-laying slide rail 85 and the first tray-laying slider 86, it drives the first tray-laying insert plate 84 to move inward, so that the first tray-laying insert plate 84 is inserted between the two lowest nail trays 12 or blister trays 13. The output end of the first lifting cylinder 87 retracts, causing the lowest nail tray 12 or blister tray 13 to contact the conveyor synchronous belt 75, and the conveyor synchronous belt 75 drives the lowest nail tray 12 or blister tray 13 to be conveyed below the camera 11.

[0027] The second tray placement device 9 includes four cooperating second placement stands 91. Two second placement stands 91 are fixedly installed at the other end of each of the two conveying tracks 71. A second lifting cylinder 95 is fixedly installed on the top of the platform 1 between the four second placement stands 91. A second lifting support plate 96 is fixedly installed on the top of the second lifting cylinder 95. Multiple second placement seats 92 are fixedly installed on the conveying track 71. The second placement seat 92 is located between two second placement stands 91 on the conveying track 71. A triangular second placement support block 94 is rotatably installed inside the second placement seat 92 through a rotating shaft 93. The second placement support block 94 is rotatably engaged with the inner cavity of the second placement seat 92.

[0028] In this embodiment, the empty nail tray 12 after the transfer of machining blades and the blister tray 13 containing machining blades are transported by the conveying device 7 to four mutually cooperating second placement stands 91 on the two conveying devices 7 for storage.

[0029] An empty nail tray 12 or a blister tray 13 equipped with machining blades is conveyed by a synchronous conveyor belt 75 to the second lifting support plate 96. The second lifting cylinder 95 extends, causing the second lifting support plate 96 to rise. The nail tray 12 or blister tray 13 rises and pushes the bottom of the second placement support block 94. The bottom of the second placement support block 94, under the action of thrust, rotates along the pivot 93 and is housed within the inner cavity of the second placement seat 92. At this time, the nail tray 12 or blister tray 13 moves above the second placement support block 94. The bottom of the second placement support block 94 is no longer under the action of thrust; the second placement support block 94, under its own weight, rotates along the pivot 93 and rotates the outside of the second placement seat 92. The second lifting cylinder 95 retracts, causing the second lifting support plate 96 to descend, and the nail tray 12 or blister tray 13 presses against the top of the multiple second placement support blocks 94.

[0030] The X-axis moving device 3 includes an X-axis linear guide rail 31 fixed to the top of the crossbeam 2. X-axis linear motors 32 are fixedly installed at both ends of the X-axis linear guide rail 31. X-axis linear sliders 33 are provided at the output ends of the X-axis linear motors 32 and slide in cooperation with the two sides of the X-axis linear guide rail 31.

[0031] In this embodiment, the X-axis linear motor 32 drives the X-axis linear slider 33, the Y-axis moving device 4, the Z-axis moving device 5, and the gripping device 6 to move horizontally along the X-axis linear guide rail 31.

[0032] The Y-axis moving device 4 includes a Y-axis bracket 41 fixed on the X-axis linear slider 33, a Y-axis motor 42 fixedly mounted on the Y-axis bracket 41, a Y-axis lead screw 43 fixedly mounted on the output end of the Y-axis motor 42, and a Y-axis lead screw nut 44 threadedly connected to the outside of the Y-axis lead screw 43, with the Y-axis lead screw nut 44 slidingly engaged with the Y-axis bracket 41.

[0033] In this embodiment, the output end of the Y-axis motor 42 rotates, driving the Y-axis lead screw 43 to rotate. The rotation of the Y-axis lead screw 43 drives the Y-axis lead screw nut 44, the Z-axis moving device 5, and the gripping device 6 to move horizontally along the Y-axis bracket 41.

[0034] Z-axis moving device 5 includes Z-axis bracket 51 fixedly connected to Y-axis lead screw nut 44, Z-axis motor 52 fixedly mounted on Z-axis bracket 51, Z-axis lead screw 53 fixedly mounted on output end of Z-axis motor 52, Z-axis lead screw 54 threadedly connected to the outside of Z-axis lead screw 53, and Z-axis lead screw nut 54 slidingly engaged with Z-axis bracket 51.

[0035] In this embodiment, the output end of the Z-axis motor 52 rotates, driving the Z-axis lead screw 53 to rotate. The rotation of the Z-axis lead screw 53 drives the Z-axis lead screw nut 54 and the gripping device 6 to move vertically along the Z-axis bracket 51.

[0036] The gripping device 6 includes a gripping bracket 61 fixedly connected to the Z-axis lead screw nut 54. A gripping motor 62 is fixedly mounted on the gripping bracket 61. A gripping cylinder 63 is fixedly mounted at the bottom of the gripping motor 62. A lifting cylinder 64, which is rotatably mounted inside the gripping cylinder 63, is fixedly mounted at the output end of the gripping motor 62. A magnet 65 is fixedly mounted at the output end of the lifting cylinder 64. A tool groove 66, which cooperates with a machining blade, is opened at the bottom of the gripping cylinder 63. The magnet 65 slides in cooperation with the tool groove 66.

[0037] In this embodiment, the X-axis moving device 3, Y-axis moving device 4, and Z-axis moving device 5 drive the gripping bracket 61 to move above the machining blade in the nail tray 12 to be picked up, and bring the bottom of the gripping cylinder 63 close to the machining blade. The gripping motor 62 rotates its output end according to the image of the machining blade captured by the camera 11, so that the angle of the tool groove 66 is consistent with the angle of the machining blade. The output end of the lifting cylinder 64 extends, driving the magnet 65 to move downward and extend out of the tool groove 66, picking up the machining blade. Then the output end of the lifting cylinder 64 retracts, driving the magnet 65 to move upward, so that the machining blade enters the tool groove 66.

[0038] The X-axis moving device 3, Y-axis moving device 4, and Z-axis moving device 5 drive the gripping bracket 61 and the machining blade to move above the position of the blister pack 13 where the machining blade is to be placed, and bring the bottom of the gripping cylinder 63 close to the blister pack 13. The output end of the lifting cylinder 64 retracts, driving the magnet 65 to move upward, separating the machining blade from the magnet 65, and causing the machining blade to fall out of the tool slot 66 and land at the designated position on the blister pack 13.

[0039] In summary, this invention is not limited to the specific embodiments described above. Those skilled in the art can make various modifications and alterations without departing from the spirit and scope of this invention. The scope of protection of this invention should be determined by the claims of this invention.

[0040] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0041] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

Claims

1. A machining blade tray swivel machine, characterized in that, The platform (1) includes a platform (1), on which a crossbeam one (2) and a crossbeam two (10) are fixedly installed. An X-axis moving device (3) is installed on the top of the crossbeam one (2). Two Y-axis moving devices (4) are installed on the top of the X-axis moving device (3). A Z-axis moving device (5) is installed on the Y-axis moving device (4). A gripping device (6) is installed on the Z-axis moving device (5). Two conveying devices (7) for conveying nail trays (12) and blister trays (13) are installed on the platform (1) below the crossbeam one (2) and the crossbeam two (10). A first tray placement device (8) and a second tray placement device (9) are installed at both ends of the conveying device (7). A camera (11) corresponding to the conveying device (7) is installed on the crossbeam two (10).

2. The machining blade swivel machine as described in claim 1, characterized in that, Both ends of the X-axis linear guide (31) are fixedly equipped with X-axis linear motors (32), and the output end of the X-axis linear motor (32) is equipped with an X-axis linear slider (33) that slides and engages with both sides of the X-axis linear guide (31).

3. The machining blade swivel machine as described in claim 2, characterized in that, The Y-axis moving device (4) includes a Y-axis bracket (41) fixed on the X-axis linear slider (33), a Y-axis motor (42) fixedly mounted on the Y-axis bracket (41), a Y-axis lead screw (43) fixedly mounted on the output end of the Y-axis motor (42), and a Y-axis lead screw nut (44) threadedly connected to the outside of the Y-axis lead screw (43), and the Y-axis lead screw nut (44) slidingly engaging with the Y-axis bracket (41).

4. A machining blade swivel machine as described in claim 3, characterized in that, The Z-axis moving device (5) includes a Z-axis bracket (51) fixedly connected to the Y-axis lead screw nut (44). A Z-axis motor (52) is fixedly mounted on the Z-axis bracket (51). A Z-axis lead screw (53) is fixedly mounted on the output end of the Z-axis motor (52). A Z-axis lead screw nut (54) is threadedly connected to the outside of the Z-axis lead screw (53). The Z-axis lead screw nut (54) slides with the Z-axis bracket (51).

5. A machining blade swivel machine as described in claim 4, characterized in that, The gripping device (6) includes a gripping bracket (61) fixedly connected to the Z-axis screw thread holder (54). A gripping motor (62) is fixedly mounted on the gripping bracket (61). A gripping cylinder (63) is fixedly mounted at the bottom of the gripping motor (62). A lifting cylinder (64) is fixedly mounted at the output end of the gripping motor (62) and is rotatably mounted inside the gripping cylinder (63). A magnet (65) is fixedly mounted at the output end of the lifting cylinder (64). A tool groove (66) that cooperates with a machining blade is opened at the bottom of the gripping cylinder (63). The magnet (65) and the tool groove (66) are slidably engaged.

6. The machining blade swivel machine as described in claim 5, characterized in that, The conveying device (7) includes two parallel conveying tracks (71) arranged on the top of the platform (1). The two conveying tracks (71) are respectively rotatably equipped with a conveying active synchronous wheel (73) and a conveying passive synchronous wheel (74) at their ends on one side of each other. The conveying active synchronous wheel (73) and the conveying passive synchronous wheel (74) are connected by a conveying synchronous belt (75). A conveying motor (72) is fixedly installed on the top of the platform (1). The output end of the conveying drive motor (72) is connected to the conveying active synchronous wheel (73) through a conveying drive belt (76). The camera (11) is located above the middle of the conveying synchronous belt (75).

7. A machining blade swivel machine as described in claim 6, characterized in that, The first tray placement device (8) includes four cooperating first placement stands (81). Two first placement stands (81) are fixedly installed at one end of each of the two conveying tracks (71). A first lifting cylinder (87) is fixedly installed on the top of the platform (1) between the four first placement stands (81). A first placement seat (82) is fixedly installed on the conveying track (71). The first placement seat (82) is located between the two first placement stands (81) on the conveying track (71). A first tray placement cylinder (83) is fixedly installed in the middle of the first placement seat (82). A first tray placement insert plate (84) is fixedly installed at the output end of the first tray placement cylinder (83). A first tray placement slide rail (85) is fixedly connected to the first placement seat (82) on both sides of the first tray placement cylinder (83). A first tray placement slider (86) is slidably installed on the first tray placement slide rail (85). The first tray placement slider (86) is fixedly connected to the first tray placement insert plate (84).

8. A machining blade swivel machine as described in claim 7, characterized in that, The second tray placement device (9) includes four mutually cooperating second placement stands (91). Two second placement stands (91) are fixedly installed at the other end of each of the two conveying tracks (71). A second lifting cylinder (95) is fixedly installed on the top of the platform (1) between the four second placement stands (91). A second lifting support plate (96) is fixedly installed on the top of the second lifting cylinder (95). Multiple second placement seats (92) are fixedly installed on the conveying track (71). The second placement seat (92) is located between two second placement stands (91) on the conveying track (71). A triangular second placement support block (94) is rotatably installed inside the second placement seat (92) through a rotating shaft (93). The second placement support block (94) is rotatably engaged with the inner cavity of the second placement seat (92).

Images