An automatic locking mechanism for fixture installation and its positioning device

Abstract

The present invention relates to the technical field of intelligent assembly equipment, and more specifically, to an automatic locking mechanism for fixture installation and its positioning device. The present invention provides an automatic locking mechanism for fixture installation, which includes a guiding and aligning part installed on the turnover equipment rack, and the guiding and aligning part is cooperatively connected with a guiding and aligning hole on the fixture to be locked; a first positioning part and a second positioning part are installed on the turnover equipment rack, the first positioning part can move along a first direction and is cooperatively connected with a first positioning hole on the fixture to be locked, and the second positioning part can move along a second direction and is cooperatively connected with a second positioning hole on the fixture to be locked. The fixture to be locked is fixedly locked by the first positioning part and the second positioning part in two different directions, realizing the quick in-place installation of the fixture to be locked, and reducing the problems of long time consumption and improper installation existing in manual installation.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent assembly equipment, and more specifically to an automatic locking mechanism for fixture installation and a positioning device thereof. Background Art

[0002] A fixture refers to a device used to fix the processing object during the mechanical manufacturing process; the fixture usually needs to be installed on a corresponding platform for use. In the prior art, the installation and positioning of the fixture mainly rely on manual assembly and installation. The fixture is manually installed on the platform through multiple locking screws, which has the following shortcomings: manual installation is time-consuming, difficult to install and disassemble quickly, and manual installation may result in incomplete installation, affecting the processing efficiency of subsequent processing objects. Summary of the invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0004] In order to at least partially solve the above-mentioned problems, the present invention provides an automatic locking mechanism for clamp installation, including a guide alignment portion installed on a flipping device stand, the guide alignment portion being matched and connected with a guide alignment hole on the clamp to be locked; a first positioning portion and a second positioning portion are installed on the flipping device stand, the first positioning portion can move along a first direction to be matched and connected with a first positioning hole on the clamp to be locked, and the second positioning portion can move along a second direction to be matched and connected with a second positioning hole on the clamp to be locked.

[0005] The first positioning portion and the second positioning portion are vertically staggered.

[0006] There are four groups of the combination of the first positioning portion and the second positioning portion, and the four groups of the combination of the first positioning portion and the second positioning portion are arranged at the four corners of the flip device stand.

[0007] The first positioning part includes a cylinder and a positioning piece. The fixed end of the cylinder is fixed on the flipping equipment stand, and the movable end of the cylinder is equipped with a positioning piece to lock and fix the locking clamp through the positioning piece. The first positioning part and the second positioning part have the same structure.

[0008] The positioning member includes a positioning tube, a guide tube, an end cover, a pushing shaft and a buffer compression spring; the positioning tube is sleeved on the outside of the coaxial guide tube, and the end cover is fixed to the positioning tube and one end of the guide tube; the pushing shaft is slidably fitted in the guide tube, and a buffer compression spring is fixed between the pushing shaft and the end cover; the other end of the pushing shaft is connected to the cylinder through a flange.

[0009] A plurality of limiting sliding grooves are uniformly arranged around the pipe surface of the guiding pipe, and a plurality of limiting sliding blocks are uniformly fixed around the pushing shaft. The plurality of limiting sliding blocks are in sliding fit with the plurality of limiting sliding grooves one by one; a conical locking plug is provided on the positioning pipe.

[0010] A plurality of flipping grooves are uniformly arranged around the positioning pipe. A flipping shaft is rotated in each flipping groove, and a flipping gear and a flipping locking rod are fixed on each flipping shaft; racks are fixed on the plurality of limiting sliding blocks, and the plurality of racks are meshed with the plurality of flipping gears one by one, so as to drive the plurality of flipping locking rods to flip from front to back to the outside of the flipping groove or flip from back to front to the inside of the flipping groove through the cooperation and transmission of the plurality of flipping gears and the flipping shafts.

[0011] A conical locking plug without a taper tip is in threaded fit with the positioning pipe. A fastening bolt is in threaded fit with the round pipe at the rear end of the conical locking plug, and the inner end of the fastening bolt presses against the external thread structure of the positioning pipe; the conical locking plug is located between the flipping locking rod and the cylinder.

[0012] An internal thread groove is provided at one end of the pushing shaft close to the end cover; a sliding pipe is in sliding fit in the central hole of the end cover. A first limiting ring is fixed at one end of the sliding pipe inserted into the guiding pipe, a second limiting ring is fixed at the other end of the sliding pipe, and an adjusting spring is sleeved on the pipe body of the sliding pipe between the second limiting ring and the end cover; the middle part of a locking screw rod is in threaded fit with the sliding pipe, one end of the locking screw rod can be in threaded fit with the internal thread groove, and a locking rotating wheel is fixed at the other end of the locking screw rod.

[0013] A positioning device includes the automatic locking mechanism for fixture installation described in any one of the above.

[0014] Compared with the prior art, the present invention at least includes the following beneficial effects:

[0015] The automatic locking mechanism for fixture installation of the present invention is internally provided with a first positioning part and a second positioning part, and the fixture to be locked can be fixedly locked in two different directions through the first positioning part and the second positioning part, realizing the quick in-place installation of the fixture to be locked, reducing the problems of long time consumption and improper installation existing in manual installation, and effectively improving the fixture installation efficiency.

[0016] The advantages of the present invention are as follows:

[0017] 1. Internally provided with a first positioning part and a second positioning part that can move in different directions, forming forces in two directions to fixedly lock the fixture to be locked, with good stability;

[0018] 2. There is a positioning member inside that can limit the clamping fixture to be locked in two directions. When locking and limiting the clamping fixture to be locked, one side of the clamping fixture to be locked can be limited by the conical locking plug inside the positioning member, and the other side of the clamping fixture to be locked can be limited by multiple flipping locking rods inside the positioning member. The two-way limiting function can prevent the clamping fixture to be locked from shifting;

[0019] 3. The internal positioning member can be applied to fixtures with positioning holes of different sizes or fixtures with positioning plates of different thicknesses. The application range is relatively wide, and it can be adjusted according to actual needs to meet various usage requirements.

[0020] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. Brief Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following will briefly introduce the drawings required for use in the description of the specific embodiments or related technologies. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 The front view of the overall structure provided by the embodiment of the present invention;

[0023] Figure 2 The top view of the overall structure provided by the embodiment of the present invention;

[0024] Figure 3 The structural schematic diagram of the first positioning portion provided by the embodiment of the present invention;

[0025] Figure 4 The structural schematic of the positioning member provided by the embodiment of the present invention Figure 1 ;

[0026] Figure 5 The structural schematic of the positioning member provided by the embodiment of the present invention Figure 2 ;

[0027] Figure 6 The partial structural schematic diagram of the positioning member provided by the embodiment of the present invention;

[0028] Figure 7 The sectional view of the structural schematic diagram of the positioning member provided by the embodiment of the present invention;

[0029] Figure 8 The connection structural schematic diagram of the positioning tube, guiding tube, and end cap provided by the embodiment of the present invention;

[0030] Figure 9 This is a schematic structural diagram of the conical locking plug provided by an embodiment of the present invention.

[0031] Icons: guiding and aligning part 01; fixture copper electrode 02; first positioning part 03; second positioning part 04; cylinder 05; positioning part 06; positioning tube 07; guiding tube 08; end cap 09; pushing shaft 10; buffer compression spring 11; limiting slideway 12; limiting slider 13; flipping groove 14; flipping shaft 15; flipping gear 16; flipping locking rod 17; rack 18; conical locking plug 19; fastening bolt 20; sliding tube 21; first limiting ring 22; second limiting ring 23; distance adjusting spring 24; locking screw 25; locking runner 26. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to this application.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality of" or "several" is two or more, unless otherwise specifically defined.

[0036] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of this application. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of this application.

[0037] The following will further describe the present invention in detail with reference to the attached Figures 1-9 drawings.

[0038] Embodiment 1

[0039] As Figures 1-9 shown, an automatic locking mechanism for fixture installation includes a guiding and aligning part 01 installed on the flipping equipment rack. The guiding and aligning part 01 is connected in a mating manner with a guiding and aligning hole on the fixture to be locked; a first positioning part 03 and a second positioning part 04 are installed on the flipping equipment rack. The first positioning part 03 can move along a first direction to be connected in a mating manner with a first positioning hole on the fixture to be locked, and the second positioning part 04 can move along a second direction to be connected in a mating manner with a second positioning hole on the fixture to be locked.

[0040] The working principle and beneficial effects of the above technical solution are as follows:

[0041] For the automatic locking mechanism for fixture installation of the present invention, when installing the fixture to be locked, first control the guiding and aligning hole on the fixture to be locked to be butted and installed with the guiding and aligning part 01 on the flipping equipment rack. The guiding and aligning part 01 plays a role of guiding and limiting to a certain extent, enabling the fixture to be locked to be initially installed on the flipping equipment rack, which is convenient for improving the accuracy of subsequent limiting of the fixture to be locked by the first positioning part 03 and the second positioning part 04; multiple guiding and aligning parts 01 can be provided on the flipping equipment rack, and the multiple guiding and aligning parts 01 are in one-to-one cooperation with the multiple guiding and aligning holes on the fixture to be locked, with better stability;

[0042] After the initial installation, power on and start the first positioning part 03 and the second positioning part 04. After the first positioning part 03 starts, it moves along the first direction and is inserted into and cooperates with the first positioning hole on the fixture to be locked, so as to limit and fix the fixture to be locked in the first direction; after the second positioning part 04 starts, it moves along the second direction and is inserted into and cooperates with the second positioning hole on the fixture to be locked, so as to limit and fix the fixture to be locked in the second direction, and through the cooperation with a plurality of guiding and aligning parts 01, the accurate and stable fixation of the fixture to be locked is realized; the first positioning part 03 and the second positioning part 04 are used to limit and fix the first positioning hole and the second positioning hole of the fixture to be locked from different directions, realizing the quick and in-place installation of the fixture to be locked, reducing the problems of long time consumption and improper installation existing in manual installation, and effectively improving the fixture installation efficiency.

[0043] In the automatic locking mechanism for fixture installation described above, the fixture copper electrode 02 on the fixture to be locked is in contact conduction with the copper electrode on the flipping equipment rack.

[0044] Embodiment 2

[0045] As Figures 1-9 shown, in the automatic locking mechanism for fixture installation described above, the first positioning part 03 and the second positioning part 04 are vertically and staggeredly arranged.

[0046] The working principle and beneficial effects of the above technical solution are:

[0047] In the automatic locking mechanism for fixture installation of the present invention, the first positioning part 03 and the second positioning part 04 are vertically and staggeredly arranged, realizing that the first positioning part 03 and the second positioning part 04 form an angle in two mutually perpendicular directions to lock and fix the fixture to be locked, effectively preventing the offset of the fixture to be locked.

[0048] Embodiment 3

[0049] As Figures 1-9 shown, in the automatic locking mechanism for fixture installation described above, there are four groups of combinations of the first positioning part 03 and the second positioning part 04, and the four groups of combinations of the first positioning part 03 and the second positioning part 04 are arranged at the four corners of the flipping equipment rack.

[0050] The working principle and beneficial effects of the above technical solution are:

[0051] In the automatic locking mechanism for fixture installation of the present invention, four groups of combinations of the first positioning part 03 and the second positioning part 04 are arranged at the four corners of the flipping equipment rack, limiting the four sides of the fixture to be locked from four positions, and improving the stability of fixing the fixture to be locked.

[0052] Embodiment 4

[0053] AsFigures 1-9 As shown in the figure, in the automatic locking mechanism for fixture installation, the first positioning part 03 includes a cylinder 05 and a positioning member 06. The fixed end of the cylinder 05 is fixed on the flipping equipment rack, and the movable end of the cylinder 05 is equipped with the positioning member 06 to lock and fix the fixture to be locked through the positioning member 06. The first positioning part 03 and the second positioning part 04 have the same structure.

[0054] The interior of the present invention is also provided with a position detection sensor and a controller. The detection sensor is used to detect whether the guiding alignment hole on the fixture to be locked is docked with the guiding alignment part 01 on the flipping equipment rack. The controller is a programmable PLC controller, which is used to control the first positioning part 03 and the second positioning part 04.

[0055] The working principle and beneficial effects of the above technical solution are as follows:

[0056] In the automatic locking mechanism for fixture installation of the present invention, after the guiding alignment hole on the fixture to be locked is docked and installed with the guiding alignment part 01 on the flipping equipment rack, the position detection sensor inside the present invention detects the in-place information and transmits a signal to the controller. The controller controls the first positioning part 03 and the second positioning part 04 to start. The controller controls the cylinder 05 inside the first positioning part 03 to start, and drives the positioning member 06 through the cylinder 05 to be inserted into the first positioning hole on the fixture to be locked. The controller controls the cylinder inside the second positioning part 04 to drive the positioning member to be inserted into the second positioning hole on the fixture to be locked, so as to realize the fixed locking of the fixture to be locked in different directions.

[0057] Embodiment Five

[0058] As Figures 1-9 shown in the figure, in the automatic locking mechanism for fixture installation, the positioning member 06 includes a positioning tube 07, a guiding tube 08, an end cap 09, a push shaft 10 and a buffer compression spring 11. The positioning tube 07 is sleeved outside the guiding tube 08 coaxial with it, and the end cap 09 is fixed at one end of the positioning tube 07 and the guiding tube 08. The push shaft 10 is slidably fitted inside the guiding tube 08, and a buffer compression spring 11 is fixed between the push shaft 10 and the end cap 09. The other end of the push shaft 10 is connected to the cylinder 05 through a flange.

[0059] The working principle and beneficial effects of the above technical solution are as follows:

[0060] An automatic locking mechanism for fixture installation according to the present invention, when locking and limiting the fixture to be locked through the first positioning portion 03, the push shaft 10 moves under the drive of the cylinder 05, so as to drive the end cover 09, the guide tube 08 and the positioning tube 07 to move towards the first positioning hole on the fixture to be locked in cooperation with the buffer compression spring 11, and control the positioning tube 07 to be inserted into the first positioning hole, realizing the limit of the fixture to be locked in one direction; when performing plug-in positioning, if the inside of the first positioning hole is uneven or has rust, jamming will occur. At this time, when the positioning tube 07 contacts the rust or unevenness inside the first positioning hole, it will exert a certain pressure on the buffer compression spring 11 through the end cover 09 until the buffer compression spring 11 is compressed and then the positioning tube 07 is driven by the push shaft 10 to pass through the first positioning hole. The buffer compression spring 11 can play a buffering role, reducing the probability of hard damage when the rust or unevenness inside the first positioning hole contacts the positioning tube 07;

[0061] The working principle of the second positioning portion 04 is the same as that of the present invention.

[0062] Embodiment Six

[0063] As Figures 1-9 shown, the push shaft 10 is rotatably connected in the central hole of the flange, and the flange is detachably connected to the cylinder 05 through the cooperation of bolts and nuts.

[0064] The working principle and beneficial effects of the above technical solution are as follows:

[0065] In an automatic locking mechanism for fixture installation according to the present invention, the flange is detachably connected to the cylinder 05 through the cooperation of bolts and nuts, which is convenient for installation or disassembly; the push shaft 10 is rotatably connected in the central hole of the flange, so that relative rotation can be performed between the positioning tube 07 and the first positioning hole. When the first positioning hole rusts, the inside of the first positioning hole can be rotated and polished to remove rust by rotating the positioning tube 07, and the positioning tube 07 and the first positioning hole are connected with a clearance fit, with high precision and good stability.

[0066] Embodiment Seven

[0067] As Figures 1-9 shown, in an automatic locking mechanism for fixture installation, a plurality of limiting slideways 12 are evenly and circumferentially arranged on the tube surface of the guide tube 08, and a plurality of limiting sliders 13 are evenly and circumferentially fixed on the push shaft 10. The plurality of limiting sliders 13 are in sliding fit with the plurality of limiting slideways 12 one by one; a conical locking plug 19 is provided on the positioning tube 07.

[0068] The working principle and beneficial effects of the above technical solution are as follows:

[0069] In an automatic locking mechanism for fixture installation according to the present invention, a plurality of limit sliders 13 are slidably engaged with a plurality of limit chutes 12 one by one, which can limit the relative positions of the guide tube 08 and the push shaft 10, preventing the separation of the push shaft 10 and the guide tube 08. Moreover, the setting of the guide tube 08 makes the transmission of the push shaft 10 to the end cap 09 and the positioning tube 07 more stable. And the structure of the double-layer tubes of the positioning tube 07 and the guide tube 08 has a certain deformation amount compared with the solid plug used for conventional positioning. When the fixture to be locked undergoes a small displacement under the influence of a large external force during the use of the present invention, it can exert pressure on the positioning tube 07, causing the positioning tube 07 to have a certain deformation amount. At this time, it can prevent the fixture to be locked from being severely damaged. A tapered locking plug 19 is provided on the positioning tube 07 to block one side of the positioning plate of the fixture to be locked, so as to stably and bi-directionally press and limit the positioning plate of the fixture to be locked through the tapered locking plug 19 and the positioning tube 07, effectively preventing the positioning plate of the fixture to be locked from loosening.

[0070] Embodiment VIII

[0071] As Figures 1-9 shown, in the automatic locking mechanism for fixture installation, a plurality of flipping grooves 14 are evenly and circumferentially arranged on the positioning tube 07. A flipping shaft 15 is rotated in each flipping groove 14, and a flipping gear 16 and a flipping locking rod 17 are fixed on each flipping shaft 15. A rack 18 is fixed on each of the plurality of limit sliders 13, and the plurality of racks 18 are meshed with the plurality of flipping gears 16 one by one, so as to drive the plurality of flipping locking rods 17 to flip from front to back outside the flipping grooves 14 or from back to front inside the flipping grooves 14 through the cooperative transmission of the plurality of flipping gears 16 and the flipping shafts 15.

[0072] The working principle and beneficial effects of the above technical solution are as follows:

[0073] In an automatic locking mechanism for fixture installation of the present invention, there is a positioning member 06 that can perform bidirectional limiting on the positioning plate of the fixture to be locked. When locking and limiting the fixture to be locked, the conical locking plug 19 inside the positioning member 06 can be used to limit one side of the positioning plate of the fixture to be locked. After the conical locking plug 19 contacts the positioning plate of the fixture to be locked, as the push shaft 10 continues to move, the buffer compression spring 11 can be compressed, and multiple racks 18 can be driven to move towards the end cover 09, thereby driving the rotation shaft 15 to rotate through the engagement of multiple racks 18 and multiple flipping gears 16, so as to drive multiple flipping locking rods 17 to flip from front to back outside the flipping groove 14, thus pressing against the other side of the positioning plate of the fixture to be locked, and the pressing degree can be finely adjusted by the air cylinder 05, and it can also be used for locking and fixing with positioning plates of different thicknesses of different fixtures to be locked; the bidirectional limiting of the conical locking plug 19 and multiple flipping locking rods 17, combined with the axial limiting of the positioning tube 07, enables the present invention to realize the locking and fixing of the fixture to be locked only by relying on one positioning member 06, and only one air cylinder is required for driving, and the operation is very convenient.

[0074] Embodiment Nine

[0075] As Figures 1-9 shown, in the automatic locking mechanism for fixture installation, a conical locking plug 19 without a taper tip is in threaded cooperation with the positioning tube 07, and a fastening bolt 20 is in threaded cooperation with the round tube at the rear end of the conical locking plug 19, and the inner end of the fastening bolt 20 presses against the external thread structure of the positioning tube 07; the conical locking plug 19 is located between the flipping locking rod 17 and the air cylinder 05.

[0076] The working principle and beneficial effects of the above technical solution are as follows:

[0077] In the automatic locking mechanism for fixture installation of the present invention, the structure of the conical locking plug 19 is set so that it can be suitable for the limiting of the first positioning holes with different diameters. The threaded connection between the positioning tube 07 and the conical locking plug 19 enables the relative position between the conical locking plug 19 and the positioning tube 07 to be appropriately adjusted, so that the conical locking plug 19 and multiple flipping locking rods 17 can be combined to be suitable for the limiting and fixing of positioning plates of more different thicknesses of fixtures to be locked.

[0078] Embodiment Ten

[0079] As Figures 1-9As shown, in the automatic locking mechanism for fixture installation, an internal thread groove is provided at one end of the push shaft 10 close to the end cover 09. A sliding tube 21 is slidably fitted in the central hole of the end cover 09. A first limit ring 22 is fixed at one end of the sliding tube 21 inserted into the guide tube 08. A second limit ring 23 is fixed at the other end of the sliding tube 21. An adjusting spring 24 is sleeved on the tube body of the sliding tube 21 between the second limit ring 23 and the end cover 09. The middle part of the locking screw 25 is in internal thread fit with the sliding tube 21. One end of the locking screw 25 can be in thread fit with the internal thread groove, and the other end of the locking screw 25 is fixed with a locking wheel 26.

[0080] The working principle and beneficial effects of the above technical solution are as follows:

[0081] In the automatic locking mechanism for fixture installation of the present invention, a locking screw 25 for manual locking and limiting is also provided. After the positioning tube 07, the conical locking plug 19 and multiple flipping locking rods 17 cooperate to realize the limiting and fixing of the positioning plate of the fixture to be locked, in order to prevent the preset operation program of the present invention from making mistakes or accidentally touching the operation button of the cylinder 05 to cause the cylinder 05 to move, the locking screw 25 can be controlled to limit and lock the push shaft 10. After the push shaft 10 completes the control of the positioning tube 07, the conical locking plug 19 and multiple flipping locking rods 17, press the locking screw 25 to drive the sliding tube 21 to slide in the central hole of the end cover 09 until the locking screw 25 contacts the internal thread groove of the push shaft 10, and then rotate the locking screw 25 to insert it into the internal thread groove until the adjusting spring 24 is completely compressed. At this time, the locking screw 25 and the push shaft 10 are relatively fixed, and the cylinder 05 cannot drive the push shaft 10 to move, realizing manual locking and preventing the situation that the fixture to be locked is not firmly fixed due to the preset operation program of the present invention making mistakes or accidentally touching the operation button of the cylinder 05 to cause the cylinder 05 to move.

[0082] The automatic locking mechanism for fixture installation further includes:

[0083] A counter for counting the number of times the buffer compression spring 11 is actually compressed and deformed, facilitating the judgment of whether the buffer compression spring 11 reaches the maximum deformation times;

[0084] A displacement sensor for detecting the sliding distance of the push shaft 10 in the guide tube 08 each time. When the push shaft 10 slides in the guide tube 08 to a preset distance interval, it is judged as one compression, and then a signal is transmitted to the controller, and the controller controls the counter to count the number of compression times;

[0085] A pressure sensor is installed between the push shaft 10 and the buffer compression spring 11 for calculating the pressure borne by the buffer compression spring 11 each time it is compressed.

[0086] A humidity sensor is used to detect the humidity of the working environment of the buffer compression spring 11. The higher the humidity, the larger the rust area and the lower the reliability of the buffer compression spring 11.

[0087] A speed sensor is used to detect the compression speed when the push shaft 10 compresses the buffer compression spring 11.

[0088] In the described automatic locking mechanism for fixture installation, the stability of the internal buffer compression spring 11 of the present invention can be calculated by the following formula. When the stability of the buffer compression spring 11 is less than the preset stability, when the push shaft 10 slides in the positioning tube 07, it cannot drive the end cover 09 and the positioning tube 07 to move a preset distance through the buffer compression spring 11. At this time, it is necessary for the push shaft 10 to contact the end cover 09 to drive the positioning tube 07 to move. When the push shaft 10 contacts the end cover 09, the meshing of multiple racks 18 and multiple flipping gears 16 drives the flipping shaft 15 to rotate, thereby driving multiple flipping locking rods 17 to flip from front to back outside the flipping groove 14. At this time, it is impossible to cooperate with the conical locking plug 19 and multiple flipping locking rods 17 to block on both sides of the fixture. Therefore, it is very important to calculate the stability of the internal buffer compression spring 11 of the present invention. The calculation formula is as follows:

[0089]

[0090] In the formula:

[0091] T X is the stability of the internal buffer compression spring 11 of the present invention;

[0092] T 1 is the initial stability of the internal buffer compression spring 11 of the present invention;

[0093] C 1 is the actual number of compressions of the buffer compression spring 11 detected by the internal counter of the present invention during use;

[0094] C X is the maximum number of compressions that the internal buffer compression spring 11 of the present invention can withstand;

[0095] Y avg is the average value of the pressure received by the buffer compression spring 11 during multiple compressions detected by the internal pressure sensor of the present invention, that is, the sum of the pressures of multiple compressions divided by the number of compressions;

[0096] Y x is the maximum pressure value that the internal buffer compression spring 11 of the present invention can withstand;

[0097] S avg is the average compression duration when the internal push shaft 10 of the present invention compresses the buffer compression spring 11 multiple times;

[0098] Sx is the preset duration for each compression of the buffer compression spring 11 when the present invention leaves the factory;

[0099] is the actual humidity value of the environment where the internal buffer compression spring 11 of the present invention is used;

[0100] w x is the humidity value of the preset environment for the internal buffer compression spring 11 of the present invention;

[0101] Qε÷Eγβ is the material strength of the internal buffer compression spring 11 actually used in the present invention;

[0102] Q x is the material strength of the internal buffer compression spring 11 preset for use in the present invention.

[0103] The working principle and beneficial effects of the above technical solution are as follows:

[0104] In the above formula, various factors affecting the stability performance of the buffer compression spring 11 are fully considered. Through the initial stability performance of the buffer compression spring 11, the actual number of compressions of the buffer compression spring 11 during use detected by the counter, the maximum number of compressions of the buffer compression spring 11, the average value of the pressure received by the buffer compression spring 11 during multiple compressions detected by the pressure sensor, the maximum pressure value that the buffer compression spring 11 can withstand, the average compression duration of the buffer compression spring 11 when the push shaft 10 performs multiple compressions on it, the preset duration for each compression of the buffer compression spring 11 when it leaves the factory, the actual humidity value of the environment where the buffer compression spring 11 is used, the humidity value of the preset environment for the buffer compression spring 11, the material strength of the actually used buffer compression spring 11, and the material strength of the preset buffer compression spring 11 for use, etc., the stability performance of the internal buffer compression spring 11 of the present invention after being used for a period of time can be accurately and efficiently calculated, and it can be judged whether the calculated stability performance TX of the buffer compression spring 11 is within the preset stability performance range. If so, the present invention can continue to operate normally. If not, the buffer compression spring 11 needs to be replaced to prevent the inability to cooperate with the conical locking plug 19 and multiple flipping locking rods 17 to block on both sides of the fixture to be locked; using the above formula to calculate the stability performance of the internal buffer compression spring 11 of the present invention is beneficial to analyzing the stability and operating life during the operation of the present invention, reducing the subsequent problem of the inability to stably clamp the fixture, resulting in poor stability when the fixture clamps the product, and ultimately affecting the quality of the processed product.

[0105] A positioning device includes the automatic locking mechanism for fixture installation described in any one of the above. The automatic locking mechanism for fixture installation can effectively position the fixture and ensure the stability of the fixture installed on the flipping equipment rack.

[0106] Regarding the specific models and / or structures of all the component parts, circuit modules, and / or devices involved in the present invention, those skilled in the art can, in combination with the common technical knowledge, theoretical principles, relevant circuit design books, user manuals, and other technical guidance materials in the prior art, make specific model selections and specific circuit structure designs according to the actual application scenarios to enable them to achieve the functions and roles of the corresponding component parts, circuit modules, and / or components disclosed in the present invention. Moreover, the component parts involved can be controlled by computer programs, and the computer programs can be stored in a non-volatile computer-readable storage medium. When the computer programs are executed, they can include the processes of the embodiments of the above-mentioned various methods. The specific implementation manners of the present invention do not elaborate and enumerate the specific component model selections and specific circuit structures.

[0107] Regarding all the methods involved in the present invention, those of ordinary skill in the art can understand and implement all or part of the methods in the above-mentioned embodiments. Those skilled in the art can, in combination with the common technical knowledge, theoretical principles, relevant design books, user manuals, and other technical guidance materials in the prior art, perform specific operations according to the actual application scenarios. The specific implementation manners of the present invention do not elaborate and enumerate the specific method processes.

[0108] The various embodiments in the specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

[0109] It should also be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including", or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article, or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article, or device including the said element.

Claims

1. An automatic locking mechanism for fixture installation, characterized in that, it includes a guiding and aligning part (01) installed on the flipping equipment stand, and the guiding and aligning part (01) is connected in a mating manner with the guiding and aligning holes on the fixture to be locked; a first positioning part (03) and a second positioning part (04) are installed on the flipping equipment stand, the first positioning part (03) moves along a first direction and is connected in a mating manner with the first positioning hole on the fixture to be locked, and the second positioning part (04) moves along a second direction and is connected in a mating manner with the second positioning hole on the fixture to be locked; the first positioning part (03) includes a cylinder (05) and a positioning member (06), the fixed end of the cylinder (05) is fixed on the flipping equipment stand, and the movable end of the cylinder (05) is provided with the positioning member (06) to lock and fix the fixture to be locked through the positioning member (06); the first positioning part (03) and the second positioning part (04) have the same structure; the positioning member (06) includes a positioning tube (07), a guiding tube (08), an end cover (09), a push shaft (10) and a buffer compression spring (11); the positioning tube (07) is sleeved outside the guiding tube (08) coaxial with it, and the end cover (09) is fixed at one end of the positioning tube (07) and the guiding tube (08); the push shaft (10) is slidably fitted in the guiding tube (08), and a buffer compression spring (11) is fixed between the push shaft (10) and the end cover (09); the other end of the push shaft (10) is connected to the cylinder (05) through a flange; a plurality of limiting sliding grooves (12) are evenly arranged in a circumferential manner on the tube surface of the guiding tube (08), a plurality of limiting sliding blocks (13) are evenly fixed in a circumferential manner on the push shaft (10), and the plurality of limiting sliding blocks (13) are slidably fitted with the plurality of limiting sliding grooves (12) one by one; a conical locking plug (19) is provided on the positioning tube (07); one end of the push shaft (10) close to the end cover (09) is provided with an internal thread groove; a sliding tube (21) is slidably fitted in the central hole of the end cover (09), a first limiting ring (22) is fixed at one end of the sliding tube (21) inserted into the guiding tube (08), a second limiting ring (23) is fixed at the other end of the sliding tube (21), and an adjusting spring (24) is sleeved on the tube body of the sliding tube (21) between the second limiting ring (23) and the end cover (09); the middle part of a locking screw (25) is in internal thread fit with the sliding tube (21), and one end of the locking screw (25) is in thread fit with the internal thread groove.

2. An automatic locking mechanism for fixture installation according to claim 1, characterized in that, the first positioning part (03) and the second positioning part (04) are arranged vertically and staggeredly.

3. An automatic locking mechanism for fixture installation according to claim 1, characterized in that, there are four groups of combinations of the first positioning part (03) and the second positioning part (04), and the four groups of combinations of the first positioning part (03) and the second positioning part (04) are arranged at the four corners of the flipping equipment stand.

4. An automatic locking mechanism for fixture installation according to claim 1, characterized in that, A plurality of flipping grooves (14) are evenly arranged around the positioning tube (07). A flipping shaft (15) is rotatably arranged in each flipping groove (14). A flipping gear (16) and a flipping locking rod (17) are fixed on each flipping shaft (15). A rack (18) is fixed on each of the plurality of limiting sliders (13). The plurality of racks (18) are engaged with the plurality of flipping gears (16) one by one, so as to drive the plurality of flipping locking rods (17) to flip from front to back to the outside of the flipping groove (14) or from back to front to the inside of the flipping groove (14) through the cooperation and transmission of the plurality of flipping gears (16) and the flipping shafts (15).

5. An automatic locking mechanism for fixture installation according to claim 4, wherein, a conical locking plug (19) without a taper tip is in threaded fit with the positioning tube (07). A fastening bolt (20) is in threaded fit with the round tube at the rear end of the conical locking plug (19). The inner end of the fastening bolt (20) presses against the external thread structure of the positioning tube (07). The conical locking plug (19) is located between the flipping locking rod (17) and the cylinder (05).

6. A positioning device, wherein, it includes the automatic locking mechanism for fixture installation according to any one of claims 1-5.

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