A sliding spiral cam adjustment mechanism

Abstract

The present invention provides a sliding spiral cam adjustment mechanism, including a sliding spiral mechanism, an inclined wedge sliding cam mechanism and a push rod frame; the sliding spiral mechanism includes a first reduction motor, a lateral adjustment nut and a lateral adjustment spiral rod, the output end of the first reduction motor is fixedly connected to one end of the lateral adjustment spiral rod, and the lateral adjustment nut and the lateral adjustment spiral rod are threadedly connected; the inclined wedge sliding cam mechanism includes a swing frame, a longitudinal adjustment nut, a longitudinal adjustment spiral rod, an inclined slideway and a push rod. The sliding spiral cam adjustment mechanism can adjust the horizontal coordinate and the vertical coordinate of the component to be adjusted online and in real time, realize the synchronous linear fine-tuning of the component to be adjusted, thereby regularly changing the motion trajectory of the component to be adjusted, and meeting the differentiated process requirements on site.

Description

Technical Field

[0001] The invention relates to the technical field of steel rolling, and in particular to a sliding spiral cam adjustment mechanism. Background Art

[0002] In the process of industrial production and manufacturing, we often need to adjust the horizontal and vertical coordinates of a component in a connecting rod mechanism or other related mechanisms in real time, or adjust the real-time motion trajectory parameters of a component to achieve the design requirements of variable trajectory motion required by a certain process. At present, the mechanism used to adjust the horizontal and vertical coordinates of the component to be adjusted has a complex structure, low adjustment accuracy, and inconvenient operation, which cannot meet the differentiated process requirements on site. Summary of the invention

[0003] The purpose of the present invention is to provide a sliding spiral cam adjustment mechanism, which can adjust the horizontal and vertical coordinates of the component to be adjusted online in real time, realize synchronous linear fine-tuning of the component to be adjusted, thereby regularly changing the motion trajectory of the component to be adjusted and meeting the differentiated process requirements on site.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A sliding spiral cam adjustment mechanism comprises a sliding spiral mechanism, an inclined wedge sliding cam mechanism and a push rod frame; the sliding spiral mechanism comprises a first reduction motor, a lateral adjustment nut and a lateral adjustment spiral rod, the output end of the first reduction motor is fixedly connected to one end of the lateral adjustment spiral rod, and the lateral adjustment nut is threadedly connected to the lateral adjustment spiral rod; the inclined wedge sliding cam mechanism comprises a swing frame, a longitudinal adjustment nut, a longitudinal adjustment spiral rod, an inclined slide and a push rod; the bottom of the swing frame is hinged to the upper plane of the lateral adjustment nut, the longitudinal adjustment spiral rod is rotatably arranged on the inner side of the swing frame, and the longitudinal adjustment nut is connected to the The longitudinal adjustment screw rod is threadedly connected, the bottom of the longitudinal adjustment screw rod is hinged to the upper plane of the transverse adjustment nut, one end of the inclined slide is hinged to the longitudinal adjustment nut, and the other end of the inclined slide is hinged to the upper plane of the transverse adjustment nut; one end of the push rod is hinged to the inclined slide, and a sleeve is provided at the top of the push rod frame, the bottom of the push rod frame is fixed, and the push rod is arranged in the sleeve; the first reduction motor drives the transverse adjustment screw rod to rotate circumferentially, so that the transverse adjustment nut can synchronously move axially, thereby making the inclined slide synchronously slide axially, and then making the push rod synchronously move vertically and downward.

[0006] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, it also includes an L slide and a locking bolt; the bottom of the L slide is fixedly arranged, and the bottom of the push rod frame is slidably connected to the top of the L slide; the locking bolt is arranged between the bottom of the push rod frame and the top of the L slide, and the locking bolt is used to fix the bottom of the push rod frame with the top of the L slide.

[0007] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, a cantilever guide rail is arranged on the top of the L slideway, and the bottom of the push rod frame is a concave structure; the concave structure is entirely covered on the cantilever guide rail, and the locking bolt is arranged between the concave structure and the cantilever guide rail, and the locking bolt is used to fix the concave structure and the cantilever guide rail together; preferably, the push rod frame is an integral welded plug-in component, and the inner side wall of the sleeve is inlaid with a second sliding bearing made of bronze and coated with lubricating grease.

[0008] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, it also includes a swing frame pressure cover, a rolling bearing and a swing articulated ball head; the swing frame pressure cover is arranged on the top of the swing frame, and the longitudinal adjustment screw rod is slidably arranged on the inner side of the swing frame through a rolling bearing fixed in the swing frame pressure cover, and the bottom of the longitudinal adjustment screw rod is arranged as an arc surface protrusion, and the central arc of the arc surface protrusion is a semicircular arc, and the longitudinal adjustment screw rod is hinged through the arc surface protrusion and the arc surface groove at one end of the swing articulated ball head; the other end of the swing articulated ball head is hinged to the upper plane of the lateral adjustment nut, and the swing frame, the longitudinal adjustment screw rod and the swing articulated ball head are coaxially compositely hinged.

[0009] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, it also includes a handwheel, which is fixedly arranged on the top of the longitudinal adjustment spiral rod; the longitudinal adjustment nut is a fine-pitch triangular internal thread; preferably, the tooth angle of the fine-pitch triangular internal thread is 60°.

[0010] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, it also includes a sliding articulated ball head, one end of the sliding articulated ball head is provided with a spherical groove; the upper surface of the inclined slide is provided with a slide with a groove structure, and the other end of the sliding articulated ball head is embedded in the slide; the sliding articulated ball head is hinged through the spherical groove and the ball head protrusion provided at the bottom of the push rod; preferably, the sliding articulated ball head is made of tin-phosphor bronze ZCuSn10P1 or tin bronze CuPb5Sn5Zn5, and extreme pressure lithium-based lubricating grease is applied in the slide.

[0011] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, it also includes a third pin and a fourth pin; the bottom of the swing frame and the other end of the swing hinge ball head are hinged to the upper plane of the lateral adjustment nut through the third pin; the other end of the inclined slide is hinged to the upper plane of the lateral adjustment nut through the fourth pin.

[0012] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, the lateral adjustment nut is designed as an integral rectangular parallelepiped structure, and the lateral adjustment nut is a full-length fine-pitch internal thread profile.

[0013] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, it also includes two groups of bearing seats and bases; the first reduction motor is fixedly arranged on the bearing seat on the transmission side, the two ends of the lateral adjustment spiral rod are respectively rotatably connected to the two groups of the bearing seats, and the bottom of the L slideway is fixedly arranged above the bearing seat on the non-transmission side; the two groups of the bearing seats are fixedly installed on the base; preferably, it also includes a first sliding bearing, which is arranged in the bearing seat.

[0014] Furthermore, in the above-mentioned sliding spiral cam adjustment mechanism, the longitudinal adjustment spiral rod is made of 20Cr alloy steel, and the swing hinge ball head is made of tin phosphor bronze ZCuSn10P1 or tin bronze CuPb5Sn5Zn5.

[0015] It can be seen from the analysis that the embodiment of the sliding spiral cam adjustment mechanism disclosed in the present invention achieves the following technical effects:

[0016] The sliding spiral cam adjustment mechanism is composed of a sliding spiral mechanism and an inclined wedge sliding cam mechanism. It can adjust the horizontal and vertical coordinates of the component to be adjusted online and in real time, and realize the synchronous linear fine-tuning of the component to be adjusted, thereby regularly changing the motion trajectory of the component to be adjusted to meet the differentiated process requirements on site. The sliding spiral cam adjustment mechanism can meet the process requirements of synchronous linear adjustment of the component to be adjusted through the regular changes in its own motion trajectory. The sliding spiral cam adjustment mechanism can accurately control the local motion trajectory of the component to be adjusted, and ultimately affect the trajectory parameters of the most downstream actuator in the component to be adjusted, meeting the actual requirements of the on-site working condition parameters. At the same time, the sliding spiral cam adjustment mechanism has a simple structure, high adjustment accuracy, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0018] Figure 1It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 It is a front view of the swing frame in one embodiment of the present invention;

[0020] Figure 3 It is a left side view of the swing frame in one embodiment of the present invention;

[0021] Figure 4 It is a schematic structural diagram of a top rod frame in one embodiment of the present invention;

[0022] Figure 5 A motion diagram of an embodiment of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of a push rod in one embodiment of the present invention;

[0024] Figure 7 It is a schematic structural diagram of a top rod frame in one embodiment of the present invention;

[0025] Figure 8 It is a structural schematic diagram of an inclined slide in one embodiment of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of a sliding hinged ball head in one embodiment of the present invention;

[0027] Fig.10 It is a structural schematic diagram of a transverse adjustment nut in one embodiment of the present invention;

[0028] Fig.11 It is a schematic diagram of the structure of the transverse adjustment screw rod in one embodiment of the present invention;

[0029] Fig.12 It is a structural schematic diagram of a swing frame in one embodiment of the present invention;

[0030] Fig.13 It is a structural schematic diagram of a swing articulated ball head in one embodiment of the present invention;

[0031] Fig.14 It is a schematic structural diagram of a longitudinal adjustment screw rod in one embodiment of the present invention;

[0032] Fig.15 It is a structural schematic diagram of a longitudinal adjustment nut in one embodiment of the present invention;

[0033] Fig.16 Schematic diagram of the structure of an L slideway in one embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 31-first reduction motor, 32-bearing seat, 321-first sliding bearing, 33-lateral adjustment screw rod, 34-lateral adjustment nut, 341-third pin, 342-fourth pin, 35-swing frame, 351-swing frame pressure cover, 352-swing frame crossbeam, 353-handwheel, 354-rolling bearing, 36-longitudinal adjustment nut, 361-fifth pin, 37-longitudinal adjustment screw rod, 38-swing articulated ball head, 39-top rod, 391-sliding articulated ball head, 392-inclined slide, 393-top rod frame, 3931-locking bolt, 394-L slide. DETAILED DESCRIPTION

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention encompasses such modifications and variations within the scope of the appended claims and their equivalents.

[0037] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component; it can be a wired electrical connection, a radio connection, or a wireless communication signal connection. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numbers and letter labels to refer to features in the drawings. Like or similar labels in the drawings and description have been used to refer to like or similar parts of the present invention. As used herein, the terms "first", "second", "third", and "fourth", etc. are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0039] like Figures 1 to 16As shown, according to an embodiment of the present invention, a sliding spiral cam adjustment mechanism is provided, including a sliding spiral mechanism, an inclined wedge sliding cam mechanism and a push rod frame 393; the sliding spiral mechanism includes a first reduction motor 31, a lateral adjustment nut 34 and a lateral adjustment spiral rod 33, and the inclined wedge sliding cam mechanism includes a swing frame 35, a longitudinal adjustment nut 36, a longitudinal adjustment spiral rod 37, an inclined slide 392 and a push rod 39; the output end of the first reduction motor 31 is fixedly connected to one end of the lateral adjustment spiral rod 33, and the lateral adjustment nut 34 is threadedly connected to the lateral adjustment spiral rod 33; the bottom of the swing frame 35 is hinged to the upper plane of the lateral adjustment nut 34, and the longitudinal adjustment spiral rod 37 is rotatably set on the swing frame 35 On the inner side, the longitudinal adjustment nut 36 is threadedly connected with the longitudinal adjustment screw rod 37, the bottom of the longitudinal adjustment screw rod 37 is hinged to the upper plane of the transverse adjustment nut 34, one end of the inclined slide 392 is hinged to the longitudinal adjustment nut 36, and the other end of the inclined slide 392 is hinged to the upper plane of the transverse adjustment nut 34; one end of the push rod 39 is hinged to the inclined slide 392, and a sleeve is provided on the top of the push rod frame 393, the bottom of the push rod frame 393 is fixedly set, and the push rod 39 is set in the sleeve; the first reduction motor 31 drives the transverse adjustment screw rod 33 to rotate circumferentially, so that the transverse adjustment nut 34 can synchronously move axially, thereby making the inclined slide 392 synchronously slide axially, and then making the push rod 39 synchronously move vertically and vertically.

[0040] In the above embodiment, the output end of the first reduction motor 31 is fixedly connected to one end of the transverse adjustment screw rod 33, and the first reduction motor 31 can drive the transverse adjustment screw rod 33 to rotate synchronously when working. The transverse adjustment nut 34 is threadedly connected to the transverse adjustment screw rod 33, so that the circumferential rotation of the transverse adjustment screw rod 33 can be converted into the axial transverse movement of the transverse adjustment nut 34. The bottom of the swing frame 35 is hinged to the upper plane of the transverse adjustment nut 34, the longitudinal adjustment screw rod 37 is rotatably arranged on the inner side of the swing frame 35, the longitudinal adjustment nut 36 is threadedly connected to the longitudinal adjustment screw rod 37, the bottom of the longitudinal adjustment screw rod 37 is hinged to the upper plane of the transverse adjustment nut 34, one end of the inclined slide 392 is hinged to the longitudinal adjustment nut 36, the other end of the inclined slide 392 is hinged to the upper plane of the transverse adjustment nut 34, one end of the push rod 39 is hinged to the inclined slide 392, a sleeve is arranged on the top of the push rod frame 393, the bottom of the push rod frame 393 is fixedly arranged, the push rod 39 is arranged in the sleeve, and the other end of the push rod 39 is connected to the component to be adjusted. When the longitudinal adjustment screw rod 37 is rotated, the longitudinal adjustment screw rod 37 and the swing frame 35 will be synchronously swung slightly left and right around the upper plane of the transverse adjustment nut 34, and the longitudinal adjustment nut 36 will be driven to slide up and down along the axis of the longitudinal adjustment screw rod 37, so that the inclined slide 392 hinged to the longitudinal adjustment nut 36 will swing left and right around the upper plane of the transverse adjustment nut 34, and finally change the inclination angle between the inclined slide 392 and the horizontal plane, and push the top rod 39 to move up and down linearly, so that the linear adjustment of the component to be adjusted can be achieved by the linear movement of the top rod 39 up and down, thereby regularly changing the motion trajectory of the component to be adjusted. When the first reduction motor 31 is working, the first reduction motor 31 drives the transverse adjustment screw rod 33 to rotate circumferentially, so that the transverse adjustment nut 34 can move in a synchronous axial transverse motion, so that the inclined slide 392 can slide in an axial manner, and then the top rod 39 can move in a synchronous vertical lifting and lowering motion, which can also achieve the synchronous linear fine adjustment of the component to be adjusted, thereby regularly changing the motion trajectory of the component to be adjusted. The sliding spiral cam adjustment mechanism is composed of a sliding spiral mechanism and an inclined wedge sliding cam mechanism. It can adjust the longitudinal coordinate of the component to be adjusted online in real time, realize synchronous linear fine-tuning of the component to be adjusted, and thus regularly change the motion trajectory of the component to be adjusted to meet the differentiated process requirements on site. The sliding spiral cam adjustment mechanism can accurately control the local motion trajectory of the component to be adjusted, and ultimately affect the trajectory parameters of the most downstream actuator in the component to be adjusted, meeting the actual requirements of the on-site working parameters. At the same time, the sliding spiral cam adjustment mechanism has a simple structure, high adjustment accuracy, and is easy to operate.

[0041] The sliding spiral cam adjustment mechanism is composed of a sliding spiral mechanism and an inclined wedge sliding cam mechanism. The sliding spiral cam adjustment mechanism adopts a unit combination design scheme of embedding and superimposing an inclined wedge sliding cam mechanism on the top of the sliding spiral mechanism. The lateral adjustment nut 34, the lateral adjustment spiral rod 33 and other accessories together constitute the sliding spiral mechanism, which is placed below the adjustment mechanism. The swing frame 35, the inclined slide 392, the push rod 39 and other related accessories constitute the inclined wedge sliding cam mechanism, which is superimposed on the top of the adjustment mechanism. The sliding spiral mechanism and the inclined wedge sliding cam mechanism cooperate with each other to adjust the longitudinal coordinate of the component to be adjusted.

[0042] Preferably, if Figure 1 As shown, in one embodiment of the present invention, two groups of bearing seats 32 and a base 15 are also included; the first reduction motor 31 is fixedly arranged on the bearing seat 32 on the transmission side, and the two ends of the lateral adjustment spiral rod 33 are respectively rotatably connected with the two groups of bearing seats 32, and the two groups of bearing seats 32 are fixedly installed on the base 15; preferably, a first sliding bearing 321 is also included, and the first sliding bearing 321 is arranged in the bearing seat 32. Here, the bearing seat 32 close to the first reduction motor 31 is the bearing seat 32 on the transmission side, and the bearing seat 32 away from the first reduction motor 31 is the bearing seat 32 on the non-transmission side. When in use, the sliding spiral cam adjustment mechanism can be symmetrically arranged below the component to be adjusted and installed as a whole on the base 15. The first reduction motor 31 can be directly fixed on the bearing seat 32 on the transmission side through a flange. The two sets of bearing seats 32 on the transmission side and the non-transmission side are of exactly the same structural design and are fixed together on the base 15, which is convenient for spatial layout and on-site disassembly and assembly. The radial support and sliding friction reduction of the two sets of first sliding bearings 321 are used to drive the circumferential positive and negative rotation of the lateral adjustment screw rod 33, so that the lateral adjustment nut 34 matched therewith moves horizontally in a straight line in the axial direction to the left and right, so as to drive the inclined slide 392 fixed above the lateral adjustment nut 34 to slide synchronously in a straight line in the axial direction, so as to drive the vertical linear lifting movement of the push rod 39, thereby changing the longitudinal coordinate of the component to be adjusted.

[0043] Preferably, if Figure 1 and Fig.16As shown, in one embodiment of the present invention, it also includes an L slideway 394 and a locking bolt 3931; the bottom of the L slideway 394 is fixedly arranged, and the bottom of the push rod frame 393 is slidably connected to the top of the L slideway 394; the locking bolt 3931 is arranged between the bottom of the push rod frame 393 and the top of the L slideway 394, and the locking bolt 3931 is used to fix the bottom of the push rod frame 393 with the top of the L slideway 394. The bottom of the push rod frame 393 is slidably connected to the top of the L slideway 394. When the push rod frame 393 slides on the L slideway 394, the push rod 39 can be moved left and right to change the horizontal coordinate of the push rod 39, so that the horizontal coordinate of the component to be adjusted can be adjusted online in real time. After the adjustment is completed, the bottom of the push rod frame 393 can be fixedly connected to the top of the L slideway 394 through the locking bolt 3931. The sliding spiral cam adjustment mechanism can adjust the horizontal and vertical coordinates of the component to be adjusted online in real time, realize synchronous linear fine-tuning of the component to be adjusted, and regularly change the motion trajectory of the component to be adjusted to meet the differentiated process requirements on site. The sliding spiral cam adjustment mechanism can accurately control the local motion trajectory of the component to be adjusted, and ultimately affect the trajectory parameters of the most downstream actuator in the component to be adjusted, meeting the actual requirements of the on-site working parameters. At the same time, the sliding spiral cam adjustment mechanism has a simple structure, high adjustment accuracy, and is easy to operate.

[0044] Preferably, if Figure 4 , Figure 7 and Fig.16 As shown, in one embodiment of the present invention, a cantilever guide rail is provided at the top of the L slide 394, and the bottom of the push rod frame 393 is a concave structure; the concave structure is integrally covered on the cantilever guide rail, and the locking bolt 3931 is provided between the concave structure and the cantilever guide rail, and the locking bolt 3931 is used to fix the concave structure and the cantilever guide rail. Preferably, the push rod frame 393 is an integral welded plug-in component, and a sleeve is designed at the top of the push rod frame 393. The inner side wall of the sleeve is inlaid with a second sliding bearing made of bronze and coated with lubricating grease to reduce friction. The push rod frame 393 cooperates with the push rod 39 to move and constrain the lateral left and right movement freedom of the push rod 39. Here, the bottom of the L slide 394 is fixedly set above the bearing seat 32 on the non-transmission side, and the bottom of the push rod frame 393 is designed to be a concave structure, which is entirely covered on the cantilever guide rail of the L slide 394, and lubricating grease is applied to the mating surfaces of the two, so that the push rod frame 393 can be manually adjusted in its lateral positioning parameters, and finally fixed by the locking bolt 3931, thereby changing the horizontal coordinate of the component to be adjusted.

[0045] Preferably, if Figures 1 to 3As shown, in one embodiment of the present invention, it also includes a swing frame pressure cover 351, a rolling bearing 354 and a swing articulated ball head 38; the swing frame pressure cover 351 is set on the top of the swing frame 35, the longitudinal adjustment screw rod 37 is slidably set on the inner side of the swing frame 35 through the rolling bearing 354 fixed in the swing frame pressure cover 351, the bottom of the longitudinal adjustment screw rod 37 is set as an arc surface protrusion, and the central arc of the arc surface protrusion is a semicircular arc, and the longitudinal adjustment screw rod 37 is hinged with the arc surface groove at one end of the swing articulated ball head 38 through the arc surface protrusion; the other end of the swing articulated ball head 38 is hinged with the upper plane of the lateral adjustment nut 34, and the swing frame 35, the longitudinal adjustment screw rod 37 and the swing articulated ball head 38 are coaxially compositely hinged. Preferably, the rolling bearing 354 is a deep groove ball bearing.

[0046] Preferably, if Figure 1 , Figures 10 to 14 As shown, in one embodiment of the present invention, the transverse adjustment nut 34 is designed as an integral rectangular parallelepiped structure, and the through-length fine-tooth internal thread profile machined on its end face matches the transverse adjustment screw rod 33 to form a sliding screw pair. The upper plane of the transverse adjustment nut 34 is designed with two sets of fixed hinge pairs, one set is used to hinge the inclined slide 392, and the other set is a composite hinge swing frame 35 and a swing hinge ball head 38. The inner side of the swing frame 35 is equipped with a longitudinal adjustment screw rod 37, which is connected to the swing frame 35 through a rolling bearing 354 fixed in the swing frame pressure cover 351 to form a swingable rigid integral component. The longitudinal adjustment screw rod 37 is made of 20Cr alloy steel. The bottom of the longitudinal adjustment screw rod 37 is designed to be hinged with a unique arc-shaped protrusion and an arc-shaped groove of the swing hinge ball head 38, and has 360° all-round rotation freedom. The swing hinge ball head 38 is made of tin-phosphor bronze ZCuSn10P1 material, which has good anti-wear and friction-reducing properties. It not only plays the radial and axial support role of the thrust sliding bearing, but also provides an additional virtual constraint for the longitudinal adjustment screw rod 37, improves its stress condition, and prevents local unbalanced load deformation. It can also swing left and right synchronously with the swing frame 35 and the longitudinal adjustment screw rod 37, forming a set of swinging three-in-one components.

[0047] Among them, Figure 5As shown, in terms of spatial kinematic design, the six major parts of the upper part of the sliding spiral cam adjustment mechanism, namely, the swing frame 35, the longitudinal adjustment screw rod 37, the longitudinal adjustment nut 36, the swing articulated ball head 38, the inclined slide 392 and the transverse adjustment nut 34, are combined into a typical planar connecting rod guide rod mechanism in mechanical design. The upper plane of the transverse adjustment nut 34 is the carrier platform of the above-mentioned planar connecting rod guide rod mechanism, on which a third pin 341 is designed, so that the swing frame 35, the longitudinal adjustment screw rod 37, and the swing articulated ball head 38 are coaxially compositely hinged, and after being screwed together with the longitudinal adjustment nut 36, they together form a planar II-level rod group with a spatial degree of freedom of 0, and are rotatably hinged with the inclined slide 392 as a level I mechanism through the fifth pin 361, and the inclined slide 392 is hinged to the upper plane of the transverse adjustment nut 34 through the fourth pin 342, together forming a planar connecting rod swing mechanism with a spatial degree of freedom of 1, wherein the inclined slide 392 is a non-circular wedge cam.

[0048] Preferably, if Figure 1 and Fig.15 As shown, in one embodiment of the present invention, a hand wheel 353 is further included, and the hand wheel 353 is fixedly arranged on the top of the longitudinal adjustment screw rod 37; the longitudinal adjustment nut 36 is a fine pitch triangular internal thread; preferably, the thread angle of the fine pitch triangular internal thread is 60°. Preferably, in one embodiment of the present invention, a third pin 341 and a fourth pin 342 are further included; the bottom of the swing frame 35 and the other end of the swing articulated ball head 38 are both hinged to the upper plane of the transverse adjustment nut 34 through the third pin 341; the other end of the inclined slide 392 is hinged to the upper plane of the transverse adjustment nut 34 through the fourth pin 342.

[0049] In the above embodiment, the longitudinal adjustment nut 36 in the swing frame 35 adopts a 60° fine-pitch triangular internal thread with a large equivalent friction coefficient and good self-locking property, and cooperates with the longitudinal adjustment screw rod 37 to move up and down along its axis. A set of fixed hinge pairs are designed on the side of the longitudinal adjustment nut 36, which is hinged with the inclined slide 392. When the hand wheel 353 is manually operated to rotate, the longitudinal adjustment screw rod 37 rotates synchronously in the circumferential direction, causing the three-link coaxial composite hinge component composed of the swing hinge ball head 38, the longitudinal adjustment screw rod 37 and the swing frame 35 to swing slightly left and right around the third pin 341 synchronously, and at the same time drive the longitudinal adjustment nut 36 to slide up and down along the axis of the longitudinal adjustment screw rod 37, so that the inclined slide 392 hinged with the longitudinal adjustment nut 36 swings left and right around the fourth pin 342 at the fixed hinge point on the transverse adjustment nut 34, and finally changes the inclination angle between the inclined slide 392 and the horizontal plane, and pushes the top rod 39 to move linearly up and down.

[0050] Preferably, if Figure 8 and Fig. 9As shown, in one embodiment of the present invention, it also includes a sliding articulated ball head 391, one end of which is provided with a spherical groove; the upper surface of the inclined slide 392 is provided with a slide with a groove structure, and the other end of the sliding articulated ball head 391 is embedded in the slide; the sliding articulated ball head 391 is hinged by the spherical groove and the ball head protrusion provided at the bottom of the top rod 39. A slide with a groove structure is milled on the upper surface of the inclined slide 392, and the other end of the sliding articulated ball head 391 is embedded in this groove slide and can slide straightly along its groove slide. In order to reduce friction resistance, the sliding articulated ball head 391 is made of tin-zinc-lead bronze, and extreme pressure lithium-based lubricating grease is applied to the groove of the inclined slide 392. One end of the sliding articulated ball head 391 is designed with a spherical groove and is 360° wrapped and articulated with the ball head protrusion at the bottom of the push rod 39. When the sliding articulated ball head 391 slides obliquely along the inclined slide 392, it pushes the push rod 39 to perform vertical up and down movement under the lateral displacement constraint of the push rod frame 393.

[0051] Preferably, if Figures 6 to 16 As shown, in one embodiment of the present invention, the push rod 39 is a three-in-one assembly structure, the bottom of the push rod 39 is screwed with a ball head protrusion to cooperate with the sliding hinge ball head 391, and the top of the push rod 39 is screwed with a circular pressure plate to match the component to be adjusted. When in use, the push rod 39 is fixedly connected to the component to be adjusted through the circular pressure plate on the top, so that the component to be adjusted and the push rod 39 are connected as a rigid integral component. To ensure the accuracy and convenience of on-site installation and positioning.

[0052] The present invention provides two control schemes, both of which can achieve the purpose of adjusting the component to be adjusted. The longitudinal coordinate of the component to be adjusted can be automatically controlled in real time by the electromagnetic induction switch set on site, relying on the intermittent forward and reverse rotation of the first reduction motor 31; while the horizontal coordinate of the component to be adjusted requires manual intervention to adjust the position of the top rod frame 393 on the L slide 394. The specific adjustment scheme can be selected according to the actual working conditions on site. Preferably, in one embodiment of the present invention, the L slide 394 and the bottom of the top rod frame 393 are designed as a sliding spiral substructure and a reduction motor and a corresponding electromagnetic induction switch are configured, so that the online automatic real-time control of the horizontal coordinate of the component to be adjusted can also be achieved. It can be seen that the sliding spiral cam adjustment mechanism can adjust the horizontal and longitudinal coordinates of the component to be adjusted online and in real time, realize the synchronous linear fine-tuning of the component to be adjusted, thereby regularly changing the motion trajectory of the component to be adjusted, and meeting the differentiated process requirements on site.

[0053] Among them, the sliding friction parts involved in the sliding spiral cam adjustment mechanism are all made of bronze material with sufficient rigidity, strength, wear resistance and anti-friction performance and coated with extreme pressure lithium-based lubricating grease to reduce friction resistance, reduce system friction power loss, and improve operation flexibility. Considering the actual working conditions of high temperature, low speed and intermittent transmission on site and the good machining process performance of the material, tin phosphor bronze ZCuSn10P1 and tin bronze CuPb5Sn5Zn5 with good anti-friction performance are preferred. Their significant characteristics are low hardness, high plasticity, small elastic modulus, good running-in, compliance and embedding, and high fatigue strength against compression and impact loads. If limited by market supply and manufacturing costs, aluminum bronze material ZCuAl10Fe3 with high mechanical strength and wear resistance can also be used as a substitute. The specific bronze spare parts involved are as follows: the first sliding bearing 321 in the bearing seat 32, the swing articulated ball head 38 in the swing frame 35, and the sliding articulated ball head 391 in the inclined slide 392.

[0054] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the sliding spiral cam adjustment mechanism is composed of a sliding spiral mechanism and an inclined wedge sliding cam mechanism, which can adjust the horizontal and vertical coordinates of the component to be adjusted online in real time, and realize the synchronous linear fine-tuning of the component to be adjusted, thereby regularly changing the motion trajectory of the component to be adjusted, and meeting the differentiated process requirements on site. The sliding spiral cam adjustment mechanism can meet the process requirements of synchronous linear adjustment of the component to be adjusted through the regular changes of its own motion trajectory. The sliding spiral cam adjustment mechanism can accurately control the local motion trajectory of the component to be adjusted, and ultimately affect the trajectory parameters of the most downstream actuator in the component to be adjusted, meeting the actual requirements of the on-site working condition parameters. At the same time, the sliding spiral cam adjustment mechanism has a simple structure, high adjustment accuracy, and is easy to operate.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sliding spiral cam adjustment mechanism, characterized in that: It includes a sliding screw mechanism, an inclined wedge type sliding cam mechanism, a push rod frame, an L slideway, a locking bolt and a hand wheel; The sliding screw mechanism comprises a first reduction motor, a lateral adjustment nut and a lateral adjustment screw rod, wherein the output end of the first reduction motor is fixedly connected to one end of the lateral adjustment screw rod, and the lateral adjustment nut is threadedly connected to the lateral adjustment screw rod; The inclined wedge type sliding cam mechanism comprises a swing frame, a longitudinal adjustment nut, a longitudinal adjustment screw rod, an inclined slideway and a push rod; The bottom of the swing frame is hinged to the upper plane of the transverse adjustment nut, the longitudinal adjustment screw rod is rotatably arranged on the inner side of the swing frame, the longitudinal adjustment nut is threadedly connected to the longitudinal adjustment screw rod, the bottom of the longitudinal adjustment screw rod is hinged to the upper plane of the transverse adjustment nut, one end of the inclined slide is hinged to the longitudinal adjustment nut, and the other end of the inclined slide is hinged to the upper plane of the transverse adjustment nut; One end of the mandrel is hinged to the inclined slide, a sleeve is arranged on the top of the mandrel frame, the bottom of the mandrel frame is fixedly arranged, and the mandrel is arranged in the sleeve; The first reduction motor drives the lateral adjustment screw rod to rotate circumferentially, so that the lateral adjustment nut can synchronously move axially, thereby making the inclined slideway synchronously slide axially, and further making the push rod synchronously move vertically up and down; The bottom of the L slide is fixedly arranged, and the bottom of the top rod frame is slidably connected to the top of the L slide; The locking bolt is arranged between the bottom of the mandrel frame and the top of the L slideway, and the locking bolt is used to fix the bottom of the mandrel frame and the top of the L slideway; The hand wheel is fixedly arranged on the top of the longitudinal adjustment screw rod; The longitudinal adjustment nut is a fine-pitch triangular internal thread.

2. The sliding spiral cam adjustment mechanism according to claim 1, characterized in that: A cantilever guide rail is provided on the top of the L slideway, and the bottom of the top rod frame is a concave structure; The concave structure is entirely covered on the cantilever guide rail, and the locking bolt is arranged between the concave structure and the cantilever guide rail. The locking bolt is used to fix the concave structure and the cantilever guide rail.

3. The sliding spiral cam adjustment mechanism according to claim 2, characterized in that: The push rod frame is an integral welded plug-in component, and the inner side wall of the sleeve is inlaid with a second sliding bearing made of bronze and coated with lubricating grease.

4. The sliding spiral cam adjustment mechanism according to claim 1, characterized in that: It also includes a swing frame gland, a rolling bearing and a swing articulated ball head; The swing frame pressure cover is arranged on the top of the swing frame, and the longitudinal adjustment screw rod is slidably arranged on the inner side of the swing frame through a rolling bearing fixed in the swing frame pressure cover. The bottom of the longitudinal adjustment screw rod is set as a curved surface protrusion, and the central arc of the curved surface protrusion is semicircular, and the longitudinal adjustment screw rod is hinged by the curved surface protrusion and the curved surface groove at one end of the swing hinge ball head; The other end of the swing articulated ball head is hinged to the upper plane of the transverse adjustment nut, and the swing frame, the longitudinal adjustment screw rod and the swing articulated ball head are coaxially compositely hinged.

5. The sliding spiral cam adjustment mechanism according to claim 1, characterized in that: The tooth angle of the fine-pitch triangular internal thread is 60°.

6. The sliding spiral cam adjustment mechanism according to claim 1, characterized in that: It also includes a sliding articulated ball head, one end of which is provided with a spherical groove; The upper surface of the inclined slide is provided with a slide with a groove structure, and the other end of the sliding hinge ball head is embedded in the slide; The sliding hinged ball head is hingedly covered with a ball head protrusion arranged at the bottom of the push rod through the spherical groove; The sliding articulated ball head is made of tin-phosphor bronze ZCuSn10P1 or tin bronze CuPb5Sn5Zn5 material, and extreme pressure lithium-based lubricating grease is applied in the slideway.

7. The sliding spiral cam adjustment mechanism according to claim 4, characterized in that: Also includes a third pin and a fourth pin; The bottom of the swing frame and the other end of the swing articulated ball head are both hinged to the upper plane of the lateral adjustment nut through the third pin shaft; The other end of the inclined slide is hinged to the upper plane of the transverse adjustment nut through the fourth pin shaft.

8. The sliding spiral cam adjustment mechanism according to claim 1, characterized in that: The transverse adjustment nut is designed as an integral rectangular parallelepiped structure, and the transverse adjustment nut is a full-length fine-pitch internal thread profile.

9. The sliding spiral cam adjustment mechanism according to claim 1, characterized in that: Also included are two sets of bearing seats and bases; The first reduction motor is fixedly arranged on the bearing seat on the transmission side, the two ends of the lateral adjustment screw rod are rotatably connected to the two groups of the bearing seats respectively, and the bottom of the L slideway is fixedly arranged above the bearing seat on the non-transmission side; The two groups of bearing seats are fixedly mounted on the base; It also includes a first sliding bearing, which is arranged in the bearing seat.

10. The sliding spiral cam adjustment mechanism according to claim 4, characterized in that: The longitudinal adjustment screw rod is made of 20Cr alloy steel, and the swing articulated ball head is made of tin-phosphor bronze ZCuSn10P1 or tin bronze CuPb5Sn5Zn5.

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