Heavy-load high-precision rapid guiding, positioning and locking device

Abstract

The invention discloses a heavy-load high-precision rapid guiding, positioning and locking device which comprises a locking shaft, a first butt joint component is fixed to the outer portion of the locking shaft, a locking hole is formed in the locking shaft in a penetrating mode, and a plurality of locking steel balls are annularly arranged at the position, close to the end of one side, of the locking shaft; a ball pressing piece capable of controlling the locking steel ball to be close to or away from the axis direction of the locking shaft is further arranged in the locking hole. A second butt joint component is fixed outside the locking sleeve, the locking sleeve is arranged outside the locking shaft in a sliding and sleeving mode, a butt joint hole is formed in the locking sleeve in a penetrating mode, the butt joint hole comprises a guide section and a locking section, and a locking conical surface is arranged at the position of the locking section; in the initial state, the locking sleeve is arranged outside the locking shaft in a sleeving mode, the ball pressing piece controls the locking steel ball to be away from the axis direction of the locking shaft and enables the locking steel ball to abut against the locking conical face, and the locking shaft and the locking sleeve are in the locking state. The invention provides a quick locking device which synchronously performs guiding positioning and locking functions and is high in locking efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of quick connection, and in particular to a heavy-load high-precision quick guiding, positioning and locking device. Background Art

[0002] In the field of industrial automation, a large number of cables, oil pipes, water pipes, and gas lines need to be quickly connected and separated, especially in the injection molding, automobile, integrated die-casting and other industries. In order to improve the efficiency of mold change, the current market has gradually begun to use automated plug-in connection devices, which usually integrate a large number of oil lines, water lines, gas lines, and circuits together. The plug-in accuracy requirements are very high, the plug-in frequency is very high, the impact force during the plug-in process is large, and the local separation force generated during work is very large, reaching more than 50KN. However, there are no products on the market that fully meet the requirements.

[0003] At present, most of the existing products on the market have separate guiding and locking, which makes the process more complicated and not conducive to quick connection and locking; or the guiding structure is cancelled, which makes the docking inaccurate, there will be obvious movement gap after locking, and the stability is poor. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a heavy-load, high-precision, fast guiding, positioning and locking device with compact structure, large locking force, high guiding and positioning accuracy, long plug-in life, and the ability to achieve fast and efficient locking and separation, which is stable and reliable.

[0005] The present invention is achieved through the following technical solutions:

[0006] A heavy-load high-precision fast guiding positioning locking device, comprising:

[0007] A locking shaft, the outside of which is fixed with a first docking member, a locking hole is passed through the inside of the locking shaft, a plurality of locking steel balls are arranged around the locking shaft near one end, and a ball pressing member is also arranged in the locking hole to control the locking steel balls to move closer to or away from the axial direction of the locking shaft;

[0008] A locking sleeve, on the outside of which a second docking member is fixed, the locking sleeve can be slidably sleeved on the outside of the locking shaft, a docking hole is penetrated inside the locking sleeve, the docking hole includes a guide section and a locking section, and the locking section has a locking cone surface;

[0009] In the initial state, the locking sleeve is sleeved on the outside of the locking shaft, and the ball pressure piece controls the locking steel ball to move away from the axial direction of the locking shaft and makes the locking steel ball abut against the locking cone surface, and the locking shaft and the locking sleeve are in a locked state.

[0010] A further preferred embodiment of the present technical solution is that the ball pressing member comprises:

[0011] The clamping end provides a locking force to the locking steel ball when the locking steel ball contacts the locking cone surface;

[0012] The pushing end is arranged at one side of the pressing end, and its outer diameter gradually decreases along the length direction of the pushing end;

[0013] The ball pressing part controls the locking steel ball to move closer to or farther from the axial direction of the locking shaft by the pushing end.

[0014] A further preferred embodiment of the present technical solution is that the locking shaft comprises a locking portion, a guide portion and an assembly portion which are arranged in sequence;

[0015] The middle ring of the locking part is provided with a plurality of placement holes, the locking steel balls are arranged in the placement holes, and the ball pressing piece can move left and right inside the locking part.

[0016] A further preferred solution of the present technical solution is that an annular buffer groove is recessed in the middle of the guide portion.

[0017] A further preferred solution of the present technical solution is that the locking hole comprises a movable hole, a connecting hole and a pushing hole which are arranged in sequence, the diameter of the connecting hole is smaller than the diameters of the movable hole and the pushing hole; and the ball pressing piece is located in the movable hole.

[0018] A further preferred embodiment of the present technical solution is that it further comprises a driving mechanism, wherein the driving mechanism comprises:

[0019] A hydraulic seat is fixed to one side of the assembly portion, an oil channel runs through the middle of the hydraulic seat, and the other end of the oil channel is connected to a hydraulic oil pump;

[0020] A linkage shaft, one end of which is located in the oil channel, and the other end of which passes through the push hole and the connecting hole in sequence and extends into the movable hole and is connected to the ball pressing member;

[0021] A shaft sleeve, which is sleeved on the outside of the linkage shaft and located in the pushing hole;

[0022] A limit block is sleeved on the outside of the linkage shaft and contacts the hydraulic seat, and the limit block is connected to the linkage shaft through a positioning pin;

[0023] The spring is sleeved on the outside of the linkage shaft and is located between the shaft sleeve and the limit block.

[0024] A further preferred solution of the technical solution is that a first proximity switch is fixed to one end of the limit block through a first mounting bracket, and the first proximity switch is arranged toward the assembly portion;

[0025] The other end of the limit block is fixed with a sensing sheet, and one side surface of the hydraulic seat is fixed with a second proximity switch through a second mounting bracket, and the second proximity switch is arranged toward the sensing sheet;

[0026] The first proximity switch and the second proximity switch are arranged opposite to each other.

[0027] A further preferred embodiment of the present technical solution is that a buffer pad is provided between the limit block and the hydraulic seat.

[0028] A further preferred embodiment of the present technical solution is that the guide section includes a guide hole and a buffer hole, the guide hole is provided with a guide cone surface at a position close to the end of the locking sleeve, and the buffer hole is located between the guide hole and the locking section; the aperture of the buffer hole is larger than the aperture of the guide hole, and the inner diameter of the guide hole is the same as the outer diameter of the guide part.

[0029] The present invention discloses a heavy-load high-precision fast guiding positioning locking device. Compared with the prior art:

[0030] 1) Provide a quick locking device with synchronous guiding positioning and locking functions, with high locking efficiency;

[0031] 2) With the steel ball locking, through reasonable structural design, the maximum locking force of 150KN can be achieved, which can easily meet the use requirements of 50KN-10KN large locking force;

[0032] 3) Two-level guidance realizes the unity of large floating amount and high positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 It is the front view of the present invention.

[0035] Figure 3 It is a structural schematic diagram of the ball pressing member of the present invention.

[0036] Figure 4 It is a cross-sectional view of the locking shaft of the present invention.

[0037] Figure 5 The cross-sectional view of the locking shaft and the pushing mechanism of the present invention Figure 1 .

[0038] Figure 6 The cross-sectional view of the locking shaft and the pushing mechanism of the present invention Figure 2 .

[0039] Figure 7 It is a structural schematic diagram of the pushing mechanism of the present invention.

[0040] Figure 8 It is a cross-sectional view of the locking sleeve of the present invention.

[0041] Fig. 9 The locking state of the locking shaft and the locking sleeve of the present invention is shown in FIG. Figure 1 .

[0042] Fig.10 The locking state of the locking shaft and the locking sleeve of the present invention is shown in FIG. Figure 2 .

[0043] Fig.11 It is a structural schematic diagram of the first butt joint component and the second butt joint component of the present invention provided with joints.

[0044] The numbers and letters in the figure represent the corresponding component names:

[0045] Among them: 10, locking shaft; 20, first docking member; 30, locking hole; 40, ball pressing member; 50, locking sleeve; 60, second docking member; 70, docking hole; 80, pushing mechanism; 101, locking steel ball; 102, locking part; 103, guide part; 104, assembly part; 105, placement hole; 106, buffer groove; 301, movable hole; 302, connecting hole; 303, pushing hole; 401, pressing end; 402, pushing Moving end; 701, guide section; 702, locking section; 703, locking cone; 704, guide cone; 801, hydraulic seat; 802, oil channel; 803, linkage shaft; 804, bushing; 805, limit block; 806, spring; 807, positioning pin; 808, first mounting bracket; 809, first induction switch; 810, induction sheet; 811, second mounting bracket; 812, second proximity switch; 813, buffer pad. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0047] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0048] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside", etc. appear to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0049] See also Figures 1 to 11As shown, a heavy-load high-precision fast guiding positioning locking device comprises: a locking shaft 10, a first docking member 20 is fixed on the outside of the locking shaft 10, a locking hole 30 is passed through the locking shaft 10, a plurality of locking steel balls 101 are arranged around the locking shaft 10 at a position close to one end, and a pressure ball member 40 is also arranged in the locking hole 30 for controlling the plurality of locking steel balls 101 to approach or move away from the axial direction of the locking shaft 10; a locking sleeve 50, a second docking member 60 is fixed on the outside of the locking shaft 10, the locking sleeve 50 can be slidably sleeved on the outside of the locking shaft 10, a docking hole 70 is passed through the locking sleeve 50, the docking hole 70 comprises a guiding section 701 and a locking section 702, and the locking section 702 has a The locking sleeve 50 is preferably arranged on the outside of the locking shaft 10, and the ball pressing member 40 controls the locking steel ball 101 to move away from the axial direction of the locking shaft 10 and makes the locking steel ball 101 abut against the locking cone surface 703, and the locking shaft 10 and the locking sleeve 50 are in a locked state; in the above technical scheme, when the locking sleeve 50 is in the positioning and locking process with the locking shaft 10, due to the structural guidance of the guide section 701 at the locking sleeve 50, the locking sleeve 50 can move smoothly along the outer wall of the locking shaft 10 until the locking sleeve 50 is completely sleeved on the outside of the locking shaft 10, and then the ball pressing member 40 in the locking shaft 10 simultaneously controls multiple locking steel balls 101 to move in a fixed manner. The ball 101 moves away from the axial direction of the locking shaft 10, so that the locking steel ball 101 abuts against the locking cone surface 703 of the locking sleeve 50. At this time, the pressure ball member 40 always applies a locking force to the locking steel ball 101, so that the locking steel ball 101 and the locking quasi-surface 703 will not separate, thereby ensuring that the locking shaft 10 and the locking sleeve 50 are locked. With this steel ball locking method, a maximum locking force of 150KN can be achieved, which can easily meet the use requirements of a large locking force of 50KN-10KN; through the above-mentioned guiding positioning locking structure, the first docking member 20 located on the locking shaft 10 and the second docking member 60 located on the locking sleeve 50 are connected to each other, so that the locking shaft 10 and the locking sleeve 50 can be locked. The first docking component 20 and the second docking component 60 continue to perform the docking procedure; when replacement is required, the ball pressing member 40 is moved to control the multiple locking steel balls 101 to approach the axial direction of the locking shaft 10, so that the locking steel balls 101 gradually move away from the locking cone surface 703 until they are completely separated. At this time, the locking sleeve 50 can be removed to completely separate the locking shaft 10 and the locking sleeve 50, and then a new locking sleeve can be replaced and then installed; the first docking component 20 and the second docking component 60 are both provided with joints on the opposite surfaces. When the locking shaft 10 and the locking sleeve 50 are locked, the joints on the two docking components complete the plug-in process to facilitate the subsequent oil, liquid and gas communication.

[0050] See also Figure 3 , Figure 5 and Figure 6As shown, the ball pressing member 40 includes: a clamping end 401, when the locking steel ball 101 abuts against the locking cone surface 703, the clamping end 401 provides a locking force to the locking steel ball 101, and the clamping end 401 is cylindrical; a pushing end 402, which is arranged on one side of the clamping end 401, and its outer diameter gradually decreases along the length direction of the pushing end 402, and the pushing end 402 is a truncated cone. Figure 3 , Figure 5 and Figure 6 Taking the angle as an example, the outer diameter of the pushing end 402 gradually decreases from left to right, and the outer diameter on the left side of the pushing end 402 is the same as the diameter of the clamping end 401; the pressure ball member 40 relies on the pushing end 402 to control the locking steel ball 101 to approach or move away from the axial direction of the locking shaft 10; the movement trajectory of the pressure ball member 40 is that, in the initial state, the clamping end 401 of the pressure ball member 40 is in contact with the locking steel ball 101, and at the same time, the outer wall of the clamping end 401 applies a locking force to the locking steel ball 101 so that the locking steel ball 101 remains stationary and continuously applies pressure to the locking cone surface 703 to ensure that the locking shaft 10 and the locking sleeve 50 are locked, and when it needs to be loosened, the pressure ball member 40 It starts to move gradually to the left. When the clamping end 401 separates from the locking steel ball 101, the clamping end 401 can no longer apply a locking force to the locking steel ball 101. However, due to the structural design of the outer wall of the pushing end 402, it can guide the locking steel ball 101 to move toward the axial direction of the locking shaft 10. Moreover, when the locking steel ball 101 no longer applies a locking force to the locking cone 703, as the locking sleeve 50 gradually begins to loosen from the locking shaft 10, the locking cone 703 at the locking sleeve 50 will also apply a thrust to the locking steel ball 101, causing the locking steel ball 101 to move inward. It is worth noting that a threaded hole is passed through the center of the ball pressing member 40 for connection.

[0051] See also Figure 4As shown, the locking shaft 10 includes a locking portion 102, a guide portion 103 and an assembly portion 104 which are arranged in sequence. The outer diameter of the locking portion 102 is smaller than the outer diameter of the guide portion 103. The assembly portion 104 has an annular boss on the outside. The assembly portion 104 is used to fix the first docking member 20. The first docking member 20 is fixed to the assembly portion 104 by multiple bolts. A plurality of placement holes 105 are arranged in the middle ring of the locking portion 102. The locking steel ball 101 is arranged in the placement hole 105, and the locking steel ball 101 can move up and down in the placement hole 105. The aperture of the outer hole of the placement hole 105 is smaller than the diameter of the locking steel ball 101. The aperture of the inner hole of the placement hole 105 is the same as the diameter of the locking steel ball 101. The interior of the placement hole 105 is an arc-shaped structure from the inner hole to the outer hole. By designing the placement hole 105 in this way, the ball pressing member 40 can control the locking steel ball 101 to move in and out. During the movement, the locking steel ball 101 will not move outward to the point of being separated from the locking shaft 10, and the ball pressing piece 40 can move left and right inside the locking part 102. The ball pressing piece 40 can not only control the locking steel ball 101 to approach or move away from the axial direction of the locking shaft 10, but also play a supporting role for the locking steel ball 101 to prevent the locking steel ball 101 from falling inward and affecting the subsequent locking process; during the assembly process of the locking steel ball 101, the locking steel ball 101 is first extended from the locking hole 30 in the locking part 102 to the placement hole 105, and then the ball pressing piece 40 is placed inside the locking part 102 to support the locking steel ball 101; it is worth noting that although the ball pressing piece 40 moves left and right inside the locking part 101, since the ball pressing piece 40 has a certain travel limit inside the locking part 102, the locking steel ball 103 will not fall into the locking hole 30.

[0052] See also Figure 4 As shown, an annular buffer groove 106 is recessed in the middle of the guide portion 103; in order to facilitate the assembly of the locking shaft 10 and the locking sleeve 50, lubricating oil is generally applied to the inner wall of the locking sleeve 50 or the outer wall of the locking shaft 10 to make the connection and guidance between the two smoother, and during long-term use, lubricating oil also needs to be added as an inevitable part. Therefore, by providing the buffer groove 106, it can play a certain role in preserving oil and maintaining internal lubrication; at the same time, it should be noted that due to changes in the workshop working environment or the assembly environment, there may be waste chips or fine particles in this process. Therefore, the buffer groove 106 can not only preserve oil, but also provide a space for waste chips or fine particles, thereby avoiding irreversible damage to the locking shaft 10 or the locking sleeve 50 and extending the service life.

[0053] See also Figures 4 to 10As shown, the locking hole 30 includes a movable hole 301, a connecting hole 302 and a pushing hole 303 arranged in sequence, and the aperture of the connecting hole 302 is smaller than the apertures of the movable hole 301 and the pushing hole 303; the ball pressing member 40 is located in the movable hole 301; since the aperture of the connecting hole 302 is smaller than the aperture of the pushing hole 303, the shaft sleeve 804 placed inside the pushing hole 303 will not be separated from the pushing hole 303; and also includes a pushing mechanism 80, the pushing mechanism 80 includes: a hydraulic seat 801, which is fixed to one side of the assembly part 104, and an oil channel 802 runs through the middle of the hydraulic seat 801, and the other end of the oil channel 802 is connected to the hydraulic oil pump, and the hydraulic seat A plug channel connected to the oil channel 802 is also provided on one side wall of 801, and the plug channel is vertically arranged with the oil channel 802, and a plug is fixed on the outside of the plug channel. The hydraulic seat 801 has two connecting plates protruding at one end close to the assembly part 104, and the connecting plates are used to connect with the assembly part 104, so that the hydraulic seat 801 is fixed to the locking shaft 10; a linkage shaft 803, one end of which is located in the oil channel 802, and the other end of which passes through the pushing hole 303 and the connecting hole 302 in turn and extends to the movable hole 301 and is connected to the ball pressing member 40, and the linkage shaft 803 is provided with a plurality of rings at the end located in the oil channel 802 A mounting groove is provided, a wear-resistant ring is provided in the outermost mounting groove, and a sealing ring is provided in the inner mounting groove. Since the oil channel 802 is connected to the hydraulic oil pump, there will be oil in it, and one end of the linkage shaft 803 is located in the oil channel 802. Therefore, by providing a sealing ring, the oil will not overflow outward. At the same time, the provision of the wear-resistant ring can also extend the service life of the linkage shaft 803. The other end of the linkage shaft 803 is fixed to the ball pressure member 40 by bolts; the shaft sleeve 804 is sleeved on the outside of the linkage shaft 803 and is located in the pushing hole 303. The provision of the shaft sleeve 804 facilitates the axial movement of the linkage shaft 803 and plays a role in lubrication and guiding. The limit block 805 is sleeved on the outside of the linkage shaft 803 and contacts the hydraulic seat 801. The limit block 805 is connected to the linkage shaft 803 through the positioning pin 807. The setting of the limit block 805 is mainly used to prevent the linkage shaft 803 from having an excessive stroke during operation; the spring 806 is sleeved on the outside of the linkage shaft 803 and is located between the sleeve 804 and the limit block 805. In the above technical solution, in the initial state, the inside of the hydraulic seat 801 is in a pressure relief state, and the pressure ball 40 applies a locking force to the locking steel ball 101, so that the locking steel ball 101 abuts against the locking cone surface 703, thereby locking the locking shaft 10 and the locking sleeve 50;When the locking shaft 10 and the locking sleeve 50 need to be separated, the hydraulic oil pump is used to supply oil, and the oil pressure will cause the limit block 805 to move to the left, and the linkage shaft 803 to move to the left. At this time, the spring 806 is in a compressed state, and the linkage shaft 803 moves to the left, causing the pressure ball 40 to move to the left, thereby separating the locking steel ball 101 from the pressing end 401 of the pressure ball 40, and causing the locking steel ball 101 to move along the conical surface of the pushing end 402 until the locking steel ball 101 is completely separated from the locking conical surface 703, so that the locking shaft 10 and the locking sleeve 50 can be loosened; when the pressure is released, the pressure applied to the linkage shaft 803 by the oil pressure is gone, and at this time, the spring 806 will automatically return, pushing the limit block 805 and the linkage shaft 803 to move to the right, and the pressure ball 40 to move to the right, thereby pushing the locking steel ball 101 out again. ;

[0054] See also Figures 5 to 7 As shown, a first proximity switch 809 is fixed to one end of the limit block 805 through a first mounting bracket 808, and the first proximity switch 809 is arranged toward the assembly portion 104; a sensing sheet 810 is fixed to the other end of the limit block 805, and a second proximity switch 812 is fixed to one side of the hydraulic seat 801 through a second mounting bracket 811, and the second proximity switch 812 is arranged toward the sensing sheet 810; the first proximity switch 809 and the second proximity switch 812 are arranged opposite to each other; in the above technical solution, the first proximity switch 809 is used to sense the distance between it and the assembly portion 104, and the second proximity switch 812 is used to sense the distance between it and the sensing sheet 810; in the pressure relief state of the inner cavity of the hydraulic seat 801, the spring 806 will compress the limit due to its own preload force Block 805, through the linkage shaft 803, drives the ball pressure piece 40 to move to the right, thereby pushing out the locking steel ball 101 and protruding it to the outer surface of the locking shaft 10, so that the locking steel ball 101 and the locking cone surface 703 are in a locked state. At the same time, the limit block 805 drives the sensor plate 810 to move to the right, close to the second proximity switch 812, and the second proximity switch 812 receives the signal and gives a locked signal; when preparing for insertion, first start unlocking, and the inner cavity of the hydraulic seat 801 supplies oil. The oil pressure will push the linkage shaft 803 to overcome the compression force of the spring 806 and move to the left. The ball pressure piece 40 moves to the left and is in place. The locking steel ball 101 is changed from a locked state to a free state. At the same time, the limit block 805 will drive the first proximity switch 809 to the left and approach the end face of the assembly part 104, and trigger the unlocking signal.

[0055] A further preferred solution of the present technical solution is that a buffer pad 813 is further provided between the limit block 805 and the hydraulic seat 801; the buffer pad 813 is fixed to the end face of the hydraulic seat 801 close to the limit block 805, which fully absorbs the impact kinetic energy of the limit block and avoids the impact and noise caused by the rapid left and right movement of the limit block.

[0056] A further preferred scheme of the present technical scheme is that the guide section 701 includes a guide hole and a buffer hole, the guide hole is provided with a guide cone 704 at a position close to the end of the locking sleeve 50, the buffer hole is located between the guide hole and the locking section 702, the design of the guide cone 704 is convenient for the locking sleeve 50 to be sleeved on the outside of the locking shaft 10, the aperture of the guide hole is the same as the outer diameter of the guide part 103, during the guiding process, the locking shaft 10 and the locking sleeve 50 are positioned, the aperture of the buffer hole is larger than the aperture of the guide hole, the buffer groove 106 is located in the buffer hole, the inner diameter of the buffer hole is larger so that oil can be stored therein; the locking section 702 is a circular through hole, the aperture of the locking section 702 is smaller than the aperture of the guide hole, the aperture of the locking section 702 is the same as the outer diameter of the locking part 102, so that the positioning effect of the present device is better.

[0057] In the above technical solution, the guide hole cooperates with the guide part 103, and the locking section 702 cooperates with the locking part 102, so that the guiding and positioning effect of the two during the insertion process is better and very convenient. Through the two-stage guidance, after the two are inserted into place, the device end will give a locking signal to start the locking action.

[0058] See also Fig.11 As shown, the first docking member 20 and the second docking member 60 are both rectangular plate structures, and multiple hydraulic joints or water joints or the like can be configured on the first docking member 20 and the second docking member 60. Male joints and female joints are respectively configured on opposite sides of the first docking member 20 and the second docking member 60. After the locking sleeve 50 is locked with the locking shaft 10, the joints of the first docking member 20 and the second docking member 60 are plugged in.

[0059] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A heavy-load, high-precision, fast guiding, positioning and locking device, characterized in that: include: A locking shaft (10) is fixed with a first docking member (20) on the outside, a locking hole (30) is passed through the locking shaft (10), a plurality of locking steel balls (101) are arranged around the locking shaft (10) at a position close to one end, and a ball pressing member (40) is also arranged in the locking hole (30) for controlling the locking steel balls (101) to move closer to or farther from the axial direction of the locking shaft (10); A locking sleeve (50) having a second docking member (60) fixed to its exterior. The locking sleeve (50) can be slidably sleeved on the exterior of the locking shaft (10). A docking hole (70) is formed through the locking sleeve (50). The docking hole (70) includes a guide section (701) and a locking section (702). The locking section (702) has a locking cone surface (703). In the initial state, the locking sleeve (50) is sleeved on the outside of the locking shaft (10), and the ball pressing member (40) controls the locking steel ball (101) to move away from the axial direction of the locking shaft (10) and makes the locking steel ball (101) abut against the locking cone surface (703), so that the locking shaft (10) and the locking sleeve (50) are in a locked state.

2. A heavy-load, high-precision, fast guiding, positioning and locking device according to claim 1, characterized in that: The ball pressing member (40) comprises: The clamping end (401) provides a locking force to the locking steel ball (101) when the locking steel ball (101) abuts against the locking cone surface (703); The pushing end (402) is arranged at one side of the pressing end (401), and its outer diameter gradually decreases along the length direction of the pushing end (402); The ball pressing member (40) controls the locking steel ball (101) to move closer to or farther from the axis of the locking shaft (10) by means of the pushing end (402).

3. A heavy-load, high-precision, fast guiding, positioning and locking device according to claim 2, characterized in that: The locking shaft (10) comprises a locking portion (102), a guide portion (103) and an assembly portion (104) which are arranged in sequence; The locking portion (102) is provided with a plurality of placement holes (105) in the middle ring, the locking steel balls (101) are arranged in the placement holes (105), and the ball pressing member (40) can move left and right inside the locking portion (102).

4. A heavy-load, high-precision, fast guiding, positioning and locking device according to claim 3, characterized in that: An annular buffer groove (106) is recessed in the middle of the guide portion (103).

5. A heavy-load, high-precision, fast guiding, positioning and locking device according to claim 4, characterized in that: The locking hole (30) comprises a movable hole (301), a connecting hole (302) and a pushing hole (303) which are arranged in sequence, and the diameter of the connecting hole (302) is smaller than the diameters of the movable hole (301) and the pushing hole (303); the ball pressing member (40) is located in the movable hole (301).

6. A heavy-load, high-precision, fast guiding, positioning and locking device according to claim 5, characterized in that: The invention also includes a driving mechanism (80), wherein the driving mechanism (80) includes: A hydraulic seat (801) is fixed to one side of the assembly portion (104); an oil channel (802) runs through the middle of the hydraulic seat (801); and the other end of the oil channel (802) is connected to a hydraulic oil pump; A linkage shaft (803), one end of which is located in the oil channel (802), and the other end of which passes through the pushing hole (303) and the connecting hole (302) in sequence and extends into the movable hole (301) and is connected to the ball pressing member (40); A shaft sleeve (804) is sleeved on the outside of the linkage shaft (803) and is located in the pushing hole (303); A limit block (805) is sleeved on the outside of the linkage shaft (803) and is in contact with the hydraulic seat (801). The limit block (805) is connected to the linkage shaft (803) via a positioning pin (807); The spring (806) is sleeved on the outside of the linkage shaft (803) and is located between the shaft sleeve (804) and the limit block (805).

7. A heavy-load, high-precision, fast guiding, positioning and locking device according to claim 6, characterized in that: A first proximity switch (809) is fixed to one end of the limit block (805) via a first mounting bracket (808), and the first proximity switch (809) is arranged toward the assembly portion (104); A sensing sheet (810) is fixed to the other end of the limit block (805), and a second proximity switch (812) is fixed to one side surface of the hydraulic seat (801) via a second mounting bracket (811), and the second proximity switch (812) is arranged toward the sensing sheet (810); The first proximity switch (809) and the second proximity switch (812) are arranged opposite to each other.

8. A heavy-load, high-precision, fast guiding, positioning and locking device according to claim 7, characterized in that: A buffer pad (813) is also provided between the limit block (805) and the hydraulic seat (801).

9. A heavy-load, high-precision, fast guiding, positioning and locking device according to claim 3, characterized in that: The guide section (701) comprises a guide hole and a buffer hole. The guide hole is provided with a guide cone (704) at a position close to the end of the locking sleeve (50). The buffer hole is located between the guide hole and the locking section (702). The aperture of the buffer hole is larger than the aperture of the guide hole. The inner diameter of the guide hole is the same as the outer diameter of the guide portion.

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