Cam roller numerical control indexing turntable

Abstract

The invention discloses a cam roller numerically controlled indexing turntable, which relates to the field of cam roller turntables, comprising a box body and an active cam and a driven indexing plate installed in the box body. The cam roller numerically controlled indexing turntable also comprises a guide hole, a guide channel and a transfer bin. A third cavity is arranged in the middle of the transfer bin, and a cooling component is arranged in the third cavity. A first suction mechanism can move liquid in the first cavity to the third cavity, and a second suction mechanism can move liquid in the third cavity to the second cavity. The cam roller numerically controlled indexing turntable cools down the lubricating oil with a high temperature generated near the meshing position of the indexing section of the active cam and the roller, so as to avoid the problem that the generated heat cannot be quickly transferred to the lubricating oil in other parts of the box body, resulting in the lubricating oil at the meshing position being at a high temperature and having a reduced viscosity, thereby affecting the lubrication effect of the working surface. It is beneficial to generate a lubricating oil film on the surface of the active cam and the roller.

Description

Technical Field

[0001] The invention relates to a cam roller turntable technology, in particular to a cam roller numerically controlled indexing turntable. Background Art

[0002] CNC turntables can be used in various CNC machining centers, CNC drilling machines, precision vertical grinders and other equipment. At present, most automated equipment requires the use of intermittent transmission mechanisms to complete indexing conversion, periodic position changes and intermittent motion with instantaneous stops. The arc surface indexing cam mechanism is a cam transmission mechanism with superior performance and suitable for indexing. The conventional arc surface indexing cam mechanism consists of an active cam (arc surface cam) and a driven indexing disk. A transmission cycle when the arc surface cam rotates at a uniform speed is divided into two parts: an indexing period and a rest period. At the beginning of the indexing period, the arc surface cam will use the working profile trajectory to push the roller. When the arc surface indexing cam mechanism runs to the rest period, the driven indexing disk no longer rotates with the rotation of the arc surface cam.

[0003] During the indexing period, the contact stress between the cylindrical roller and the two working surfaces on the camber cam will vary greatly, and the smaller the rotation speed of the camber cam, the greater the contact stress at the meshing point. The two working surfaces are also prone to wear, and the debris generated by wear is wrapped by the nearby lubricating oil. As the camber cam rotates, the lubricating oil will carry the debris and accumulate near the contact position of the camber cam and the roller for a long time, causing the debris to easily enter the working surface and further accelerate the wear, affecting the normal operation of the turntable. At the same time, when the turntable continues to operate, the temperature of the lubricating oil near the indexing period will increase rapidly with the operation of the camber cam and the roller, causing the viscosity of the lubricating oil to decrease relatively quickly, which is not conducive to the production of an elastic lubricating oil film on the working surface. Summary of the invention

[0004] The object of the present invention is to provide a cam roller numerically controlled indexing turntable to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a cam roller numerically controlled indexing turntable, comprising a box body and a driving cam and a driven indexing plate installed in the box body, wherein a rotating shaft is fixedly connected to the middle of the driving cam, and when the driving cam rotates one circle, its peripheral side presents a ridge-shaped profile and is divided into an indexing section and a rest section, and the cam roller numerically controlled indexing turntable also comprises:

[0006] A guide hole is provided on the indexing section of the active member cam;

[0007] A flow guide channel is provided on the inner wall of the active component cam and is used to connect the flow guide hole and the inner side of the active component cam;

[0008] A transfer bin, one end of which is rotatably connected to the inner side of the active member cam, and the other end of which is fixedly connected to the inner wall of the box. A first cavity and a second cavity are provided on the circumference of the transfer bin, which are connected to the inner side of the active member cam. The first cavity and the second cavity are located on a first path, which is a moving track of the end of the guide channel close to the transfer bin when the active member cam rotates.

[0009] A third cavity is arranged in the middle of the transfer bin, and a cooling component is arranged in the third cavity;

[0010] a first suction mechanism capable of moving the liquid in the first cavity to the third cavity;

[0011] The second suction mechanism is capable of moving the liquid in the third cavity into the second cavity.

[0012] Furthermore, the first cavity is located on a side of the driven component indexing plate close to the rotation direction of the driving component cam, and the first cavity and the second cavity are symmetrically distributed.

[0013] Furthermore, the first suction mechanism includes a first piston cavity opened on the inner wall of the transfer bin, a first piston rod is slidably connected to the inner wall of the first piston cavity, a first channel is opened on the inner wall of the first piston rod, the first channel is connected to the first piston cavity on the side of the first piston rod close to the first cavity, a second channel is opened on the first piston rod, the second channel is used to connect the first channel and the first piston cavity on the other side of the first piston rod, and a first one-way valve is arranged in the first channel.

[0014] Furthermore, a third channel connecting the first cavity and the first piston cavity is opened in the transfer chamber, and a second one-way valve is arranged in the third channel.

[0015] Furthermore, a fourth channel is opened on a side of the transfer chamber away from the active member cam, and the fourth channel is used to connect the first piston chamber and the third cavity.

[0016] Furthermore, the second suction mechanism includes a second piston cavity opened on the inner wall of the transfer chamber, a second piston rod is slidably connected to the inner wall of the second piston cavity, and a fifth channel connecting the second cavity and the second piston cavity is opened in the transfer chamber.

[0017] Furthermore, a driving mechanism is installed on the rotating shaft, and the driving mechanism is used to drive the first piston rod and the second piston rod to move along the inner walls of the first piston chamber and the second piston chamber respectively. The driving mechanism includes a driving plate, and an annular guide groove is opened on the circumference of the driving plate. The annular guide groove has a protrusion protruding along the axial direction of the rotating shaft. One end of the first piston rod and the second piston rod are respectively rotatably connected to the first guide wheel and the second guide wheel, and the surfaces of the first guide wheel and the second guide wheel are movably connected to the inner wall of the annular guide groove.

[0018] Furthermore, a guide groove is provided in the third cavity, the guide groove is inclined, and the height of one end of the guide groove close to the active component cam is lower than the height of the other end away from the active component cam, and the cooling component is installed in the guide groove.

[0019] Furthermore, a sixth channel is opened in the transfer bin, and the sixth channel is used to connect the guide groove and the second cavity, and one end of the sixth channel is located at one end of the guide groove close to the active part cam, and a third one-way valve is provided at one end of the sixth channel located on the side of the second cavity.

[0020] Furthermore, a filtering mechanism is also installed in the third cavity, and the filtering mechanism includes a cylinder, an inner surface of the cylinder is slidably connected to the rotating shaft, one end of the cylinder is fixedly connected to a chassis, the other end of the cylinder is fixedly connected to a sealing disk, a filter screen is fixedly connected to the outer side of the sealing disk and the outer side of the chassis, a filter cavity is formed between the filter screen, the cylinder, the chassis and the sealing disk, the outer surface of the sealing disk is rotatably connected to the inner surface of the transfer bin, an annular groove is provided on the outer surface of the sealing disk, the annular groove is connected to the fourth channel, a seventh channel is provided in the sealing disk, and the seventh channel is used to connect the annular groove and the filter cavity.

[0021] Compared with the prior art, the cam roller numerically controlled indexing turntable provided by the present invention has the following features:

[0022] Beneficial effects:

[0023] 1. The cam roller CNC indexing turntable, when the guide hole on the active part cam rotates to the roller side of the driven part indexing plate, the driving mechanism drives the first piston rod to move so that the first cavity is in a negative pressure state, and the debris and heat generated after the indexing section contacts the roller enter the lubricating oil in the local area. At this time, most of the lubricating oil in this area will enter the first cavity through the guide hole, and enter the filter cavity when the first piston rod moves in the opposite direction, so that the lubricating oil containing debris impurities is quickly centrifugally filtered through the filtering mechanism, so that when the active part cam rotates one circle, most of the debris generated between it and the driven part indexing plate can be timely extracted from the vicinity of the meshing position, avoiding the problem that the debris gradually diffuses and accumulates in the lubricating oil, causing the debris to enter the working surface and further accelerate the wear, thereby ensuring the service life of the lubricating oil and providing a good lubrication environment for the transmission of the cam roller.

[0024] 2. In the cam roller CNC indexing turntable, after the lubricating oil in the guide groove is treated by the cooling component, when the guide hole rotates to the side of the second cavity, the second cavity is in a positive pressure state, and the lubricating oil therein will be pushed out of the second cavity to flow out from the guide hole, so that the clean lubricating oil within the applicable temperature returns to the housing before the indexing section of the active component cam rotates to the side of the roller, thereby cooling the lubricating oil with a higher temperature generated near the meshing part of the indexing section of the active component cam and the roller, avoiding the problem that the generated heat cannot be quickly transferred to the lubricating oil in other parts of the housing, resulting in the lubricating oil at the meshing position being at a higher temperature and the viscosity being reduced, affecting the lubrication effect of the working surface, and is conducive to the formation of a lubricating oil film on the surface of the active component cam and the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the internal structure of a box provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the structure of the driving cam and the driven indexing plate provided in an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of a state where the filtering mechanism provided by an embodiment of the present invention is separated from the transfer bin and the rotating shaft;

[0030] Figure 5 A first schematic diagram of a longitudinal section of a transfer bin and an active member cam provided in an embodiment of the present invention;

[0031] Figure 6 A second schematic diagram of a longitudinal section of a transfer bin and an active member cam provided in an embodiment of the present invention;

[0032] Figure 7 A longitudinal cross-sectional schematic diagram of a transfer bin, an active component cam and a filter mechanism provided in an embodiment of the present invention;

[0033] Figure 8 The embodiment of the present invention provides Figure 7 The enlarged view of point A in the middle;

[0034] Fig. 9 The embodiment of the present invention provides Figure 7 Enlarged view of point B in the middle.

[0035] Description of reference numerals:

[0036] 1. Active cam; 11. Guide hole; 12. Guide channel; 2. Follower indexing plate; 3. Rotating shaft; 4. Transfer chamber; 41. First cavity; 42. Second cavity; 43. Third cavity; 44. Third channel; 45. Second one-way valve; 46. Fourth channel; 47. Guide groove; 48. Sixth channel; 49. Third one-way valve; 5. Cooling component; 6. First suction mechanism; 61. First piston cavity; 62. First piston rod; 63. First channel; 64. Second channel; 65. First non-return valve; 7. Second suction mechanism; 71. Second piston chamber; 72. Second piston rod; 73. Fifth channel; 8. Filter mechanism; 81. Cylinder; 82. Chassis; 83. Sealing disc; 84. Filter net; 85. Filter chamber; 86. Annular groove; 87. Seventh channel; 9. Drive mechanism; 91. Drive disc; 92. Annular guide groove; 93. First guide wheel; 94. Second guide wheel; 100. Box; 200. Turntable. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Example:

[0039] See also Figure 1-Figure 9 A cam roller numerically controlled indexing turntable includes a box 100 and an active cam 1 and a driven indexing plate 2 installed in the box 100. One end of the driven indexing plate 2 is connected to a turntable 200. The middle of the active cam 1 is fixedly connected to a rotating shaft 3. When the active cam 1 rotates one circle, its peripheral side has a ridge-shaped profile divided into an indexing section and a rest section. The cam roller numerically controlled indexing turntable also includes:

[0040] A guide hole 11 is provided on the indexing section of the active member cam 1;

[0041] A flow guide channel 12, which is provided on the inner wall of the active component cam 1 and is used to connect the flow guide hole 11 and the inner side of the active component cam 1;

[0042] The transfer bin 4 has one end circumferential side rotatably connected to the inner side of the active member cam 1, and the other end circumferential side of the transfer bin 4 is fixedly connected to the inner wall of the box body 100. The transfer bin 4 has a first cavity 41 and a second cavity 42 connected to the inner side of the active member cam 1. The first cavity 41 and the second cavity 42 are located on a first path, which is a moving track of the end of the guide channel 12 close to the transfer bin 4 when the active member cam 1 rotates.

[0043] A third cavity 43 is disposed in the middle of the transfer bin 4, and a cooling component 5 is disposed in the third cavity 43;

[0044] A first suction mechanism 6, which can move the liquid in the first cavity 41 to the third cavity 43;

[0045] The second suction mechanism 7 is capable of moving the liquid in the third cavity 43 into the second cavity 42 .

[0046] In one embodiment of the present invention, the first cavity 41 is located on one side of the driven member indexing plate 2 close to the rotation direction of the active member cam 1. Figure 3 As shown, when the active cam rotates 1, the friction between it and the roller on the driven indexing plate 2 causes the lubricating oil temperature at the corresponding position in the box 100 to increase and the impurities to increase. When the guide hole 11 rotates to the side of the first cavity 41, the lubricating oil at this position will be introduced into the transfer bin 4 through the guide hole 11 and the guide channel 12 for corresponding treatment;

[0047] In one embodiment of the present invention, the first cavity 41 and the second cavity 42 are symmetrically distributed. It should be noted that the position of the second cavity 42 determines the position where the second suction mechanism 7 discharges the treated lubricating oil to the outside of the guide hole 11. The position of the second cavity 42 can be set at a symmetrical position of the first cavity 41. It should be understood that it can also be set at a position before the guide hole 11 rotates to the follower dividing plate 2.

[0048] In one embodiment of the present invention, the first suction mechanism 6 includes a first piston chamber 61 opened on the inner wall of the transfer bin 4, the inner wall of the first piston chamber 61 is slidably connected to the first piston rod 62, the inner wall of the first piston rod 62 is provided with a first channel 63, the first channel 63 is connected to the first piston chamber 61 on the side of the first piston rod 62 close to the first cavity 41, the first piston rod 62 is provided with a second channel 64, the second channel 64 is used to connect the first channel 63 with the first piston chamber 61 on the other side of the first piston rod 62, and a first one-way valve 65 is provided in the first channel 63, such as Fig. 9 As shown, the first one-way valve 65 only allows the lubricating oil on the left side of the first piston chamber 61 to move to the right side of the first piston chamber 61 through the first channel 63 and the second channel 64 .

[0049] In one embodiment of the present invention, a third channel 44 is provided in the transfer chamber 4 to connect the first cavity 41 and the first piston cavity 61, and a second one-way valve 45 is provided in the third channel 44. Figure 5 As shown, the second one-way valve 45 only allows the liquid in the first cavity 41 to move into the first piston cavity 61 through the third channel 44;

[0050] In one embodiment of the present invention, a fourth channel 46 is provided on a side of the transfer chamber 4 away from the active member cam 1, and the fourth channel 46 is used to connect the first piston chamber 61 and the third chamber 43;

[0051] In one embodiment of the present invention, when the guide hole 11 on the active member cam 1 rotates to one side of the first cavity 41, the first piston rod 62 can move along the axial direction of the first piston cavity 61, so that the first cavity 41 is in a negative pressure state, and the lubricating oil outside the guide hole 11 will enter the first cavity 41 and continue to enter one side of the first piston cavity 61. When the first piston rod 62 moves in the opposite direction along the axial direction of the first piston cavity 61, the lubricating oil in the first piston cavity 61 will move to the other side of the first piston cavity 61 through the first channel 63 and the second channel 64;

[0052] In one embodiment of the present invention, the second suction mechanism 7 includes a second piston cavity 71 opened on the inner wall of the transfer chamber 4, the inner wall of the second piston cavity 71 is slidably connected to a second piston rod 72, and a fifth channel 73 connecting the second cavity 42 and the second piston cavity 71 is opened in the transfer chamber 4. Figure 5 As shown, the second piston rod 72 can move along the axial direction of the second piston chamber 71;

[0053] In one embodiment of the present invention, a driving mechanism 9 is installed on the rotating shaft 3, and the driving mechanism 9 is used to drive the first piston rod 62 and the second piston rod 72 to move along the inner walls of the first piston chamber 61 and the second piston chamber 71 respectively. The driving mechanism 9 includes a driving disk 91, and an annular guide groove 92 is opened on the circumference of the driving disk 91. The annular guide groove 92 has a protruding portion protruding along the axial direction of the rotating shaft 3. One end of the first piston rod 62 and the second piston rod 72 are rotatably connected to the first guide wheel 93 and the second guide wheel 94 respectively, and the surfaces of the first guide wheel 93 and the second guide wheel 94 are both movably connected to the inner wall of the annular guide groove 92;

[0054] like Figure 3 As shown, when the annular guide groove 92 rotates with the rotating shaft 3, the raised portion thereon will sequentially drive the first guide wheel 93 and the second guide wheel 94 to move, so that the first piston rod 62 and the second piston rod 72 sequentially move along the axial direction of the rotating shaft 3. It should be noted that the raised portion and the guide hole 11 are located at the same horizontal position, that is, the line connecting the position of the raised portion and the guide hole 11 is parallel to the axis of the rotating shaft 3, so that when the guide hole 11 rotates to the first cavity 41 or the second cavity 42, the driving mechanism 9 drives the first piston rod 62 or the second piston rod 72 to move;

[0055] In one embodiment of the present invention, a guide groove 47 is provided in the third cavity 43. The guide groove 47 is inclined, and the height of the end close to the active member cam 1 is lower than the height of the end away from the active member cam 1. The cooling component 5 is installed in the guide groove 47. Figure 6As shown, the inclined guide groove 47 can guide the lubricating oil entering the third cavity 43 to one end close to the active member cam 1;

[0056] In one embodiment of the present invention, the cooling component 5 is a heat pipe, and coolant flows in the heat pipe. This is common knowledge in the prior art and will not be described in detail here. The cooling component 5 is used to cool the lubricating oil in the guide groove 47 to reduce the temperature of the lubricating oil to a suitable applicable range.

[0057] In one embodiment of the present invention, a sixth channel 48 is provided in the transfer bin 4, and the sixth channel 48 is used to connect the guide groove 47 and the second cavity 42, and one end of the sixth channel 48 is located at the end of the guide groove 47 close to the active member cam 1, and a third one-way valve 49 is provided at one end of the sixth channel 48 located on one side of the second cavity 42, and the third one-way valve 49 only allows the lubricating oil in the guide groove 47 to move into the second cavity 42 through the sixth channel 48;

[0058] In one embodiment of the present invention, Fig. 9 As shown, the first one-way valve 65 and the second one-way valve 45 have the same structure, which includes but is not limited to a ball valve structure, such as Figure 8 As shown, the third one-way valve 49 is a sheet valve structure, wherein the ball valve structure includes a ball and a spring, the sheet valve structure includes a sealing plate, one end of the sealing plate is rotatably connected to the inner wall of the transfer bin 4, and one side of the sealing plate is located at the end of the sixth channel 48. The principles of the first one-way valve 65, the second one-way valve 45 and the third one-way valve 49 are common knowledge in the prior art and will not be described in detail here.

[0059] In one embodiment of the present invention, a filter mechanism 8 is further installed in the third cavity 43, and the filter mechanism 8 includes a cylinder 81, the inner surface of the cylinder 81 is slidably connected to the rotating shaft 3, one end of the cylinder 81 is fixedly connected to a chassis 82, and the other end of the cylinder 81 is fixedly connected to a sealing disk 83, and the outer side of the sealing disk 83 and the outer side of the chassis 82 are fixedly connected to a filter screen 84, and a filter cavity 85 is formed between the filter screen 84, the cylinder 81, the chassis 82 and the sealing disk 83. The outer surface of the sealing disk 83 is rotatably connected to the inner surface of the transfer bin 4, and an annular groove 86 is provided on the outer surface of the sealing disk 83, and the annular groove 86 is connected to the fourth channel 46. A seventh channel 87 is provided in the sealing disk 83, and the seventh channel 87 is used to connect the annular groove 86 and the filter cavity 85;

[0060] like Figure 4 and Figure 5As shown, the lubricating oil flowing out of the fourth channel 46 moves into the filter chamber 85 through the annular groove 86 and the seventh channel 87. When the cylinder 81 rotates along with the rotating shaft 3, the lubricating oil in the filter chamber 85 is driven to perform centrifugal motion, so as to filter the lubricating oil through the filter screen 84. The filtered lubricating oil flows along the inner wall of the third cavity 43 into the guide groove 47.

[0061] It should be noted that the rotating connection between the transfer bin 4 and the active component cam 1 is a sealed rotation, and an annular sealing ring is fixedly installed on the circumferential side of the transfer bin 4, so that when the active component cam 1 rotates, it can only be connected with the outside of the active component cam 1 when the guide hole 11 rotates to dock with the first cavity 41 or the second cavity 42. Similarly, an annular sealing ring is also fixedly installed on the circumferential side of the sealing disk 83.

[0062] In one embodiment of the present invention, during the process of the active member cam 1 rotating one circle, it is taken as an example that there is only one indexing segment and a rest segment, and the real-time scene is specifically as follows:

[0063] Lubricating oil extraction stage: when the guide hole 11 on the active part cam 1 rotates to the roller side of the driven part indexing plate 2, that is, when one roller is in the indexing section position, the driving mechanism 9 drives the first piston rod 62 to move so that the first cavity 41 is in a negative pressure state, and the debris and heat generated after the indexing section contacts the roller enter the lubricating oil in the local area. At this time, most of the lubricating oil in this area will enter the first cavity 41 through the guide hole 11, and enter the filter chamber 85 when the first piston rod 62 moves in the opposite direction, so that the lubricating oil containing debris and impurities is quickly centrifugally filtered by the filtering mechanism 8, and the filtered lubricating oil enters the guide groove 47;

[0064] Lubricating oil return stage: after the lubricating oil in the guide groove 47 is processed by the cooling component 5, when the guide hole 11 rotates to the side of the second cavity 42, the driving mechanism 9 drives the second piston rod 72 to move and is extracted into the second cavity 42, and when the second piston rod 72 returns and moves, the second cavity 42 is in a positive pressure state, and the lubricating oil therein will be pushed out of the second cavity 42 to flow out from the guide hole 11, so that the clean lubricating oil within the applicable temperature is returned to the housing 100 before the indexing section of the active component cam 1 rotates to the roller side.

[0065] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cam roller numerically controlled indexing turntable, comprising a housing (100) and an active cam (1) and a driven indexing plate (2) mounted in the housing (100), wherein a rotating shaft (3) is fixedly connected to the middle of the active cam (1), and when the active cam (1) rotates one circle, a ridge-shaped profile on its circumference is divided into an indexing section and a rest section, and characterized in that: A guide hole (11) is provided on a dividing section of the active member cam (1); A flow guide channel (12), which is formed on the inner wall of the active component cam (1) and is used to connect the flow guide hole (11) and the inner side of the active component cam (1); A transfer bin (4), one end of which is rotatably connected to the inner side of the active component cam (1), and the other end of which is fixedly connected to the inner wall of the box body (100). A first cavity (41) and a second cavity (42) are provided on the circumference of the transfer bin (4) and are connected to the inner side of the active component cam (1). The first cavity (41) and the second cavity (42) are located on a first path, which is a moving track of the end of the guide channel (12) close to the transfer bin (4) when the active component cam (1) rotates. A third cavity (43) is arranged in the middle of the transfer bin (4), and a cooling component (5) is arranged in the third cavity (43); a first suction mechanism (6) capable of moving liquid in the first cavity (41) to the third cavity (43); The first suction mechanism (6) comprises a first piston chamber (61) formed on an inner wall of the transfer chamber (4); a first piston rod (62) is slidably connected to the inner wall of the first piston chamber (61); a first channel (63) is formed on the inner wall of the first piston rod (62); the first channel (63) is communicated with the first piston chamber (61) on a side of the first piston rod (62) close to the first chamber (41); a second channel (64) is formed on the first piston rod (62); the second channel (64) is used to communicate the first channel (63) with the first piston chamber (61) on the other side of the first piston rod (62); a first one-way valve (65) is provided in the first channel (63); The transfer chamber (4) is provided with a third channel (44) communicating with the first cavity (41) and the first piston cavity (61), and a second one-way valve (45) is provided in the third channel (44); A fourth channel (46) is provided on a side of the transfer chamber (4) away from the active member cam (1), and the fourth channel (46) is used to connect the first piston chamber (61) and the third chamber (43); a second suction mechanism (7) capable of moving liquid in the third cavity (43) into the second cavity (42); The second suction mechanism (7) comprises a second piston cavity (71) formed on the inner wall of the transfer chamber (4); a second piston rod (72) is slidably connected to the inner wall of the second piston cavity (71); and a fifth channel (73) is formed in the transfer chamber (4) and communicates with the second cavity (42) and the second piston cavity (71); A guide groove (47) is provided in the third cavity (43); the guide groove (47) is inclined, and the height of one end of the guide groove close to the active component cam (1) is lower than the height of the other end away from the active component cam (1); the cooling component (5) is installed in the guide groove (47); A sixth channel (48) is provided in the transfer chamber (4), the sixth channel (48) being used to connect the guide groove (47) and the second cavity (42), and one end of the sixth channel (48) is located at an end of the guide groove (47) close to the active member cam (1), and a third one-way valve (49) is provided at one end of the sixth channel (48) located on one side of the second cavity (42).

2. The cam roller numerically controlled indexing turntable according to claim 1, characterized in that: The first cavity (41) is located on a side of the driven component indexing plate (2) close to the rotation direction of the driving component cam (1), and the first cavity (41) and the second cavity (42) are symmetrically distributed.

3. The cam roller numerically controlled indexing turntable according to claim 1, characterized in that: A driving mechanism (9) is mounted on the rotating shaft (3), and the driving mechanism (9) is used to drive the first piston rod (62) and the second piston rod (72) to move along the inner walls of the first piston chamber (61) and the second piston chamber (71), respectively. The driving mechanism (9) comprises a driving plate (91), and an annular guide groove (92) is formed on the circumference of the driving plate (91). The annular guide groove (92) has a protruding portion protruding along the axial direction of the rotating shaft (3). One end of the first piston rod (62) and the second piston rod (72) are rotatably connected to a first guide wheel (93) and a second guide wheel (94), respectively. The surfaces of the first guide wheel (93) and the second guide wheel (94) are both movably connected to the inner wall of the annular guide groove (92).

4. The cam roller numerically controlled indexing turntable according to claim 1, characterized in that: A filtering mechanism (8) is also installed in the third cavity (43), the filtering mechanism (8) comprising a cylinder (81), the inner surface of the cylinder (81) being slidably connected to the rotating shaft (3), one end of the cylinder (81) being fixedly connected to a bottom plate (82), the other end of the cylinder (81) being fixedly connected to a sealing disk (83), the outer side of the sealing disk (83) and the outer side of the bottom plate (82) being fixedly connected to a filter screen (84), a filtering cavity (85) being formed between the filter screen (84), the cylinder (81), the bottom plate (82) and the sealing disk (83), the outer surface of the sealing disk (83) being rotatably connected to the inner surface of the transfer bin (4), the outer surface of the sealing disk (83) being provided with an annular groove (86), the annular groove (86) being connected to the fourth channel (46), the sealing disk (83) being provided with a seventh channel (87), the seventh channel (87) being used to connect the annular groove (86) and the filtering cavity (85).

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