CN220162333U - Six-degree-of-freedom constrained flexible assembly tool - Google Patents
Six-degree-of-freedom constrained flexible assembly tool Download PDFInfo
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- 229920000049 Carbon (fiber) Polymers 0.000 description 7
- 239000004917 carbon fiber Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
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Abstract
The utility model discloses a six-degree-of-freedom constrained flexible assembly tool, which comprises a flexible supporting mechanism, a lifting mechanism and a driving device, wherein the flexible supporting mechanism is arranged on the flexible supporting mechanism; the flexible supporting mechanism is arranged on the lifting mechanism, and the driving device is used for driving the lifting mechanism 102 to lift so as to enable the flexible supporting mechanism arranged on the lifting mechanism to move up and down linearly; the flexible supporting mechanism comprises a sleeve arranged on the lifting mechanism, a flexible rod taper sleeve is arranged in the sleeve, a flexible rod is arranged in the flexible rod taper sleeve, the end face of the flexible rod, which is close to a product, is connected with the product, and the face, which is far away from the product, is connected with the flexible rod taper sleeve; the sleeve is provided with a threaded hole, and a limit screw is arranged in the threaded hole; the utility model can solve the problems that in the prior art, the rigid tool cannot compensate the stress generated in the assembly process, and the product is damaged in the vibration test; the flexible tool has the problems of insufficient rigidity and low modal fundamental frequency, and cannot meet the technical requirements.
Description
Technical Field
The utility model relates to an assembly structure, in particular to a flexible assembly tool, and especially relates to a six-degree-of-freedom constrained flexible assembly tool.
Background
The optical module product in the aerospace field has the technical requirements of high precision, high stability, high and low temperature resistance, impact resistance and the like. In the ground verification stage, the simulation of mechanical vibration conditions under the emission condition, such as impact working condition excitation, sinusoidal vibration excitation, random vibration excitation and the like, is required. In order to prevent the product from being damaged, the product and the vibration test stand are required to be mechanically connected through a tool. The product is generally provided with a plurality of mechanical interfaces, the tool can be used for carrying out switching with a test bed, three interfaces are common, and six-degree-of-freedom constraint on the module can be realized through three-point support. Aiming at the high precision, complexity and the like of products in the aerospace field, the requirements on the tooling are also severe during the test. The tooling structure has the following characteristics: (1) The tooling structure can overcome the tiny deformation of the structure of the aerospace product caused by self gravity. (2) The tool structure can adapt to deformation caused by high and low temperature change, and the product performance is not influenced. (3) The tool structure can compensate the assembly stress generated in the assembly process, and damage caused by local stress concentration in a product test is avoided. The flexible structure has good dynamic adaptability, can release certain stress, and better bear the impact and vibration conditions of the dynamic load loaded in the test, thereby reducing the influence of the clamp on the product in the test and ensuring more reliable test results.
The prior art has the application number of: the utility model of CN115789452A discloses a carbon fiber Bipod supporting device of a space camera and the space camera device (hereinafter referred to as prior art 1), which comprises an upper base, two lower bases and carbon fiber rods, wherein each lower base is hinged with one carbon fiber rod, and the upper end of each carbon fiber rod is hinged on the upper base; the carbon fiber rod is cylindrical, the side wall of the carbon fiber rod comprises a plurality of groups of composite layers, and each group of composite layers comprises a damping layer and a carbon fiber layer which are laminated and bonded in a composite manner
The Bipod supporting device in the prior art can realize the support and vibration reduction of the space camera and restrict six degrees of freedom of the space camera; however, the Bipod supporting device in the prior art is used for products with large weight, large required rigidity and inconsistent supporting point interface forms, and the supporting rigidity and the assembling form of the supporting device cannot meet the requirements of product tests.
Disclosure of Invention
The utility model aims to provide a six-degree-of-freedom constrained flexible assembly tool, which can solve the problem that in the prior art, the rigid tool cannot compensate stress generated in the assembly process and damage a product in a vibration test; the flexible tool has the problems of insufficient rigidity and low modal fundamental frequency, and cannot meet the technical requirements. Meanwhile, when a high-low temperature test is required to be carried out on a product restrained by the flexible assembly tool, the flexible assembly tool also has a certain compensation effect on stress and deformation generated by a material with a larger thermal expansion coefficient.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a six-degree-of-freedom constrained flexible assembly tool comprises a flexible supporting mechanism, a lifting mechanism and a driving device;
the flexible supporting mechanism is arranged on the lifting mechanism, and the driving device is used for driving the lifting mechanism to lift so as to enable the flexible supporting mechanism arranged on the lifting mechanism to move up and down in a straight line;
the flexible supporting mechanism comprises a sleeve arranged on the lifting mechanism, a flexible rod taper sleeve is arranged in the sleeve, a flexible rod is arranged in the flexible rod taper sleeve, the end face of the flexible rod, which is close to a product, is connected with the product, and the face, which is far away from the product, is connected with the flexible rod taper sleeve; the sleeve is provided with a threaded hole, a limit screw is arranged in the threaded hole, a second threaded hole is formed in the flexible rod taper sleeve, and the limit screw is in clearance fit with the second threaded hole and limits the flexible rod taper sleeve.
The lifting mechanism comprises a bottom plate, a vertical moving part and a horizontal moving part, wherein the vertical moving part and the horizontal lifting part are both arranged on the bottom plate, and the driving device is connected with the horizontal moving part.
Further optimized, the horizontal moving part comprises a pressing plate, a shaft sleeve and a test rack, the test rack is arranged on the shaft sleeve, and the pressing plate is arranged at the left end and the right end of the bottom plate; a first limit area is formed between the bottom plate and the pressing plate, a slope slide block is slidably arranged in the first limit area, and the top surface of the slope slide block is provided with an inclined plane; the driving device is connected with the slope sliding block and used for driving the slope sliding block to slide in the first limiting area; guide plates are arranged on the left side and the right side of the slope sliding block, guide grooves are formed in the guide plates, a connecting shaft is arranged between the two guide plates, and the left end and the right end of the connecting shaft are slidably arranged in the guide grooves; the connecting shaft is provided with a bearing, the shaft sleeve is arranged on the connecting shaft, the test frame is connected with the movable end of the vertical moving part, and the flexible supporting mechanism is arranged on the test frame.
The left end and the right end of the connecting shaft are provided with first shaft shoulders, and when the connecting shaft arranged between the two guide plates slides in the guide groove, the first shaft shoulders play a limiting role on the connecting shaft.
Further optimizing, the connecting shaft is symmetrically provided with a second shoulder corresponding to the central line of the slope sliding block, the connecting shaft is provided with a check ring, and a second limiting area is formed between the check ring and the second shoulder; the bearing is mounted in the second spacing region.
The vertical moving part comprises a vertical rail and a vertical rail sliding block, the vertical rail is arranged on the bottom plate, the vertical rail sliding block is arranged on the test frame, and the vertical rail sliding block is slidably arranged on the vertical rail.
Further preferably, the end face, connected with the product, of the flexible rod is provided with an opening, and one face, far away from the product, of the flexible rod is connected with the flexible rod taper sleeve through a bolt.
Wherein, be provided with the second screw hole on the flexible pole taper sleeve.
Further preferably, the flexible rod is provided with a flexible groove.
The diameter of the flexible rod is increased stepwise from the end surface connected with the product to the end surface connected with the flexible rod taper sleeve.
Compared with the prior art, the utility model has the following beneficial effects:
in the utility model, the flexible supporting mechanism is arranged on the lifting mechanism, and the driving device is used for driving the lifting mechanism to lift so as to enable the flexible supporting mechanism arranged on the lifting mechanism to move up and down linearly; the flexible supporting mechanism comprises a sleeve arranged on the lifting mechanism, a flexible rod taper sleeve is arranged in the sleeve, and a flexible rod is arranged in the flexible rod taper sleeve; when the product is supported, the sleeve is firstly mounted on the lifting mechanism by bolts, the end face, close to the product, of the flexible rod mounted in the flexible rod taper sleeve is connected with the product, and the face, far away from the product, of the flexible rod taper sleeve is connected with the flexible rod taper sleeve; the sleeve is provided with threaded holes, in the utility model, the number of the threaded holes is three, and limit screws are arranged in the threaded holes; the flexible rod taper sleeve is provided with a second threaded hole which is in clearance fit with the limit screw and limits the flexible rod taper sleeve. In the process of assembling the product and the flexible tool, the limit screw is not fastened, and the degree of freedom of the flexible rod taper sleeve in the sleeve along the axial direction and the degree of freedom of movement along the axial direction can be released through a second threaded hole which is formed in the flexible rod taper sleeve and is in clearance fit with the limit screw, and errors of the product connected with the flexible rod in the process of assembling are compensated. Therefore, one flexible rod only constrains two degrees of freedom of displacement in two directions, releasing three degrees of freedom of rotation and one degree of freedom of displacement. The flexible supporting mechanism needs three groups to be used together, three flexible rods are respectively supported on three sides of a product, the first flexible rod limits two degrees of freedom of the product in the displacement directions, the second flexible rod limits two degrees of freedom of rotation of the product after being installed, and the last flexible rod limits one degree of freedom of the product in the displacement and one degree of freedom of rotation after being installed, so that six-degree-of-freedom constraint is realized. After compensating assembly errors in the six-degree-of-freedom directions of the product in the assembly process, the three limit screws are fastened, and the flexible rod taper sleeve is positioned and clamped, so that the rigidity and the fundamental frequency of the whole tool in the test are improved. The utility model can solve the problems that in the prior art, the rigid tool cannot compensate the stress generated in the assembly process, and the product is damaged in the vibration test; the flexible tool has the problems of insufficient rigidity and low modal fundamental frequency, and cannot meet the technical requirements. When the product limited by the flexible assembly tool is tested, the flexible assembly tool can also compensate the tiny deformation of the product caused by self gravity and the stress and deformation of the product caused by temperature change, so that the risk of product damage in the test is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic perspective view of a flexible supporting mechanism in the present utility model.
Fig. 3 is a schematic perspective view of a lifting mechanism in the present utility model.
Fig. 4 is a schematic structural view of a lifting mechanism in the present utility model.
Fig. 5 is a schematic perspective view of a flexible rod according to the present utility model.
FIG. 6 is a view of the use of the flexible shaft cone sleeve according to the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
the device comprises a flexible supporting mechanism, a lifting mechanism, a driving device, a sleeve, a flexible rod taper sleeve, a flexible rod, a limit screw, a base plate, a pressing plate, a sleeve, a test rack, a slope sliding block, a guide plate, a guide groove, a connecting shaft, a flexible groove, a threaded hole, a first shaft shoulder, a second shaft shoulder, a retaining ring, a 121 vertical rail sliding block and a 122 vertical rail.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the embodiments of the present utility model, it should be understood that the terms "length," "vertical," "horizontal," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the embodiments of the present utility model and to simplify the description, rather than to indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.
The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present utility model. Furthermore, embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1-6, the present embodiment discloses an assembly fixture, specifically a six-degree-of-freedom constrained flexible assembly fixture, which includes a flexible supporting mechanism 101, a lifting mechanism 102 and a driving device 103;
the flexible supporting mechanism 101 is arranged on the lifting mechanism 102, and the driving device 103 is used for driving the lifting mechanism 102 to lift so as to enable the flexible supporting mechanism 101 arranged on the lifting mechanism 102 to move up and down linearly;
the flexible supporting mechanism 101 comprises a sleeve 104 arranged on the lifting mechanism 102, a flexible rod taper sleeve 105 is arranged in the sleeve 104, a flexible rod 106 is arranged in the flexible rod taper sleeve 105, the end face of the flexible rod 106 close to a product is connected with the product, and the face far away from the product is connected with the flexible rod taper sleeve 105; the sleeve 104 is provided with a threaded hole, the threaded hole is internally provided with a limit screw 107, the flexible rod taper sleeve 105 is provided with a second threaded hole 117, and the limit screw 107 is in clearance fit with the second threaded hole 117 and limits the flexible rod taper sleeve 105.
In the utility model, a flexible supporting mechanism 101 is arranged on a lifting mechanism 102, a driving device 103 is used for driving the lifting mechanism 102 to lift, so that the flexible supporting mechanism 101 arranged on the lifting mechanism 102 moves up and down linearly; the flexible supporting mechanism 101 comprises a sleeve 104 arranged on the lifting mechanism 102, a flexible rod taper sleeve 105 is arranged in the sleeve 104, and a flexible rod 106 is arranged in the flexible rod taper sleeve 105; when a product is supported, firstly, a sleeve 104 is mounted on a lifting mechanism 102 by bolts, the end face, close to the product, of a flexible rod 106 mounted in a flexible rod taper sleeve 105 is connected with the product, and the end face, far away from the product, of the flexible rod taper sleeve 105 is connected with the flexible rod taper sleeve; the sleeve 104 is provided with three threaded holes, and limit screws 107 are arranged in the threaded holes; the flexible rod taper sleeve 105 is provided with a second threaded hole 117, and the second threaded hole 117 is in clearance fit with the limit screw 107 and limits the flexible rod taper sleeve 105. In the process of assembling the product and the flexible tool, the limit screw 107 is not fastened, and the degree of freedom of rotation of the flexible rod cone 105 in the axial direction and the degree of freedom of movement in the axial direction in the sleeve 104 can be released through the second threaded hole 117 provided on the flexible rod cone 105 and in clearance fit with the limit screw 107, and compensate for errors generated in the process of assembling the product connected with the flexible rod 106. So that one flexible rod 106 constrains only two degrees of freedom of displacement, releasing three degrees of rotational freedom and one degree of freedom of displacement. The flexible supporting mechanism 101 needs three groups to be used together, three flexible rods 106 are respectively supported on three sides of a product, the first flexible rod 106 limits two degrees of freedom of the product in displacement directions, the second flexible rod 106 limits two degrees of freedom of rotation of the product after being installed, and the last flexible rod 106 limits one degree of freedom of displacement and one degree of freedom of rotation of the product after being installed, so that six-degree-of-freedom constraint is realized. After compensating assembly errors in the six-degree-of-freedom directions of the product in the assembly process, the three limit screws 107 are fastened, and the flexible rod taper sleeve 105 is positioned and clamped, so that the rigidity and the fundamental frequency of the whole tool in the test are improved. The utility model can solve the problems that in the prior art, the rigid tool cannot compensate the stress generated in the assembly process, and the product is damaged in the vibration test; the flexible tool has the problems of insufficient rigidity and low modal fundamental frequency, and cannot meet the technical requirements. When the product limited by the flexible assembly tool is tested, the flexible tool can compensate micro deformation of the product caused by self gravity and stress and deformation of the product caused by temperature change, so that the risk of product damage in the test is reduced.
The lifting mechanism 102 comprises a bottom plate 108, a vertical moving part and a horizontal moving part, wherein the vertical moving part and the horizontal lifting part are both arranged on the bottom plate 108; the moving end of the vertical moving part is connected to the horizontal moving part, and the driving device 103 is connected to the horizontal moving part. The driving device 103 drives the horizontal moving part to move in the horizontal direction, and drives the moving end of the vertical moving part connected with the horizontal moving part to move up and down in a straight line.
Further preferably, the horizontal moving part comprises a pressing plate 109, a shaft sleeve 110 and a test rack 111, the test rack 111 is arranged on the shaft sleeve 110, and the pressing plate 109 is arranged at the left end and the right end of the bottom plate 108; a first limit area is formed between the bottom plate 108 and the pressing plate 109, a slope slide block 112 is slidably arranged in the first limit area, and the top surface of the slope slide block 112 is provided with an inclined surface; the driving device 103 is connected with the slope slide block 112 and is used for driving the slope slide block 112 to slide in the first limit area; guide plates 113 are arranged on the left side and the right side of the slope slide block 112, guide grooves 114 are arranged on the guide plates 113, a connecting shaft 115 is arranged between the two guide plates 113, and the left end and the right end of the connecting shaft 115 are slidably arranged in the guide grooves 114; the connecting shaft 115 is provided with a bearing, the shaft sleeve 110 is provided on the connecting shaft 115, the test stand 111 is connected to the movable end of the vertical moving part, and the flexible support mechanism 101 is provided on the test stand 111. The driving device 103 drives the ramp slider 112 and the guide plate 113 mounted on the ramp slider 112 to move linearly in the first limit region. The slope slide block 112 drives the bearing arranged on the connecting shaft 115 to roll in the linear motion process; the guide plates 113 are driven by the driving device 103 to be installed between the guide plates 113, and the connecting shafts 115, both left and right ends of which are slidably installed in the guide grooves 114, are slid in the guide grooves 114. The shaft housing 110 mounted on the connection shaft 115, and the test stand 111 coupled to the shaft housing 110 of the connection shaft 115, linearly move up and down with the sliding of the connection shaft 115 in the guide groove 114. At this time, the moving end of the vertical moving part connected to the test stand 111 will move vertically up and down with the test piece. In this embodiment, two vertical moving parts are symmetrically installed at the left and right sides of the test stand 111, and the bearings installed on the connecting shaft 115 are deep groove ball bearings, and two deep groove ball bearings are installed on the connecting shaft 115, compared with the middle line of the bottom plate 108. The driving device 103 may be a cylinder, a telescopic rod or other driving mechanism capable of driving the ramp slider 112 to slide in the first limiting area, and the driving device 103 in this embodiment is a cylinder connected with the ramp slider 112.
Example two
Referring to fig. 1-6, this embodiment is further optimized on the basis of the first embodiment, the left and right ends of the connecting shaft 115 are provided with first shaft shoulders 118, and when the connecting shaft 115 installed between the two guiding plates 113 slides in the guiding groove 114, the first shaft shoulders 118 play a limiting role on the connecting shaft 115. The first shaft shoulders 118 arranged at the left end and the right end of the connecting shaft 115 are symmetrically arranged relative to the central line of the bottom plate 108, the guide plates 113 are driven by the driving device 103 to be installed between the guide plates 113, and when the connecting shaft 115 with the left end and the right end slidably installed in the guide groove 114 slides in the guide groove 114, the first shaft shoulders 118 limit the connecting shaft 115, so that the connecting shaft 115 is prevented from falling off due to displacement along the axial direction of the connecting shaft 115 in the moving process.
The connecting shaft 115 is symmetrically provided with a second shoulder 119 relative to the central line of the slope slider 112, the connecting shaft 115 is provided with a retainer ring 120, and a second limiting area is formed between the retainer ring 120 and the second shoulder 119; the bearing is mounted in the second spacing region. The distance from the second shoulder 119 to the center line of the slope slider 112 is smaller than the distance from the first shoulder 118 to the center line of the slope slider 112, the slope slider 112 drives the bearing mounted on the connecting shaft 115 to roll in the linear motion process, and the bearing is mounted in a second limiting area formed between the retainer 120 and the shoulder by arranging the retainer 120 on the connecting shaft 115, so that the bearing is prevented from displacing along the axis direction of the connecting shaft 115 in the rolling process.
Further preferably, the vertical moving part comprises a vertical rail 122 and a vertical rail sliding block 121, wherein the vertical rail 122 is arranged on the bottom plate 108, the vertical rail sliding block 121 is arranged on the test frame 111, and the vertical rail sliding block 121 is slidably arranged on the vertical rail 122. The slope slide block 112 drives the bearing arranged on the connecting shaft 115 to roll in the linear motion process; the guide plates 113 are driven by the driving device 103 to be installed between the guide plates 113, and the connecting shafts 115, both left and right ends of which are slidably installed in the guide grooves 114, are slid in the guide grooves 114. The shaft housing 110 mounted on the connection shaft 115, and the test stand 111 coupled to the shaft housing 110 of the connection shaft 115, linearly move up and down with the sliding of the connection shaft 115 in the guide groove 114. The vertical rail slider 121 is slidably mounted on the vertical rail 122, and the vertical rail slider 121 connected to the test stand 111 is to be linearly moved up and down along with the test piece under the guide of the vertical rail 122.
Wherein, be provided with the trompil on the terminal surface that flexible pole 106 and product are connected, the one side that flexible pole 106 kept away from the product is connected with flexible pole taper sleeve 105 through the bolt. The end surface of the flexible rod 106, which is contacted with the side surface of the product, is provided with an opening, and in the embodiment, the flexible rod 106 is connected with the product through a bolt; one side of the flexible rod 106, which is far away from the product, is connected with the flexible rod taper sleeve 105 through a bolt, so that the flexible rod 106 is prevented from falling off from the flexible rod taper sleeve 105, the three groups of flexible supporting mechanisms 101 are ensured to be used, and six-degree-of-freedom constraint on the product can be realized.
Further preferably, flexible rod 106 is provided with flexible channel 116. The flexible grooves 116 are formed in two groups and are orthogonally distributed on the surface of the flexible rod 106; two degrees of rotational freedom of the flexible rod 106 are released by providing flexible grooves 116 in the surface of the flexible rod 106.
The flexible rod 106 is a stepped rod, and the large end of the stepped rod is connected with the flexible rod taper sleeve 105. Such that the diameter of the flexible rod 106 increases stepwise from the end surface to which the product is attached to the end surface to which the flexible rod cone sleeve 105 is attached. The rigidity of the flexible rod 106 is enhanced by increasing the diameter of the flexible rod 106 stepwise from the end surface connected with the product to the end surface connected with the flexible rod taper sleeve 105; the weakening of the rigidity of the flexible rod 106 by the flexible groove 116 after the flexible groove 116 is provided on the flexible rod 106 can be reduced.
Example III
Referring to fig. 1-6, the present embodiment is basically the same as the first embodiment, except that in the present embodiment, a chute corresponding to the second limit area is provided on the ramp slider 112; the slope slide block 112 drives the bearing arranged on the connecting shaft 115 to roll in the linear motion process; the bearing on the connecting shaft 115 is installed in the second limiting area, and when the bearing rolls on the slope slider 112, the sliding groove arranged on the slope slider 112 limits the bearing, so that the stability of the bearing in movement is improved.
Wherein, the bottom surface of the bottom plate 108 is provided with an anti-skid pad; by providing a non-slip mat on the underside of the base plate 108, the assembly fixture is prevented from being displaced by the reaction force of the product in use.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. A six-degree-of-freedom constrained flexible assembly tool is characterized in that: comprises a flexible supporting mechanism (101), a lifting mechanism (102) and a driving device (103);
the flexible supporting mechanism (101) is arranged on the lifting mechanism (102), and the driving device (103) is used for driving the lifting mechanism (102) to lift so as to enable the flexible supporting mechanism (101) arranged on the lifting mechanism (102) to move up and down in a straight line;
the flexible supporting mechanism (101) comprises a sleeve (104) arranged on the lifting mechanism (102), a flexible rod taper sleeve (105) is arranged in the sleeve (104), a flexible rod (106) is arranged in the flexible rod taper sleeve (105), the end face, close to a product, of the flexible rod (106) is used for being connected with the product, and the face, far away from the product, of the flexible rod taper sleeve (105) is connected with the flexible rod taper sleeve; be provided with the screw hole on sleeve (104), threaded hole installs stop screw (107), is provided with second screw hole (117) on flexible pole taper sleeve (105), stop screw (107) and second screw hole (117) clearance fit to carry out spacingly to flexible pole taper sleeve (105).
2. The six-degree-of-freedom constrained flexible assembly tool according to claim 1, wherein: the lifting mechanism (102) comprises a bottom plate (108), a vertical moving part and a horizontal moving part, and the vertical moving part and the horizontal lifting part are both arranged on the bottom plate (108); the movable end of the vertical movable part is connected with the horizontal movable part, and the driving device (103) is connected with the horizontal movable part.
3. The six degree of freedom constrained flexible assembly tooling of claim 2, wherein: the horizontal moving part comprises a pressing plate (109), a shaft sleeve (110) and a test rack (111), the test rack (111) is arranged on the shaft sleeve (110), and the pressing plate (109) is arranged at the left end and the right end of the bottom plate (108); a first limit area is formed between the bottom plate (108) and the pressing plate (109), a slope sliding block (112) is slidably arranged in the first limit area, and the top surface of the slope sliding block (112) is provided with an inclined surface; the driving device (103) is connected with the slope sliding block (112) and is used for driving the slope sliding block (112) to slide in the first limit area; guide plates (113) are arranged on the left side and the right side of the slope sliding block (112), guide grooves (114) are formed in the guide plates (113), a connecting shaft (115) is arranged between the two guide plates (113), and the left end and the right end of the connecting shaft (115) are slidably arranged in the guide grooves (114); the connecting shaft (115) is provided with a bearing, the shaft sleeve (110) is arranged on the connecting shaft (115), the test frame (111) is connected with the moving end of the vertical moving part, the flexible supporting mechanism (101) is arranged on the test frame (111), and the bearing is contacted with the inclined plane.
4. A six degree of freedom constrained flexible assembly tool as claimed in claim 3, wherein: the left end and the right end of the connecting shaft (115) are provided with first shaft shoulders (118), and when the connecting shaft (115) arranged between the two guide plates (113) slides in the guide groove (114), the first shaft shoulders (118) play a limiting role on the connecting shaft (115).
5. The six-degree-of-freedom constrained flexible assembly tool according to claim 4, wherein: the connecting shaft (115) is symmetrically provided with a second shoulder (119) relative to the central line of the slope sliding block (112), the connecting shaft (115) is provided with a check ring (120), and a second limit area is formed between the check ring (120) and the second shoulder (119); the bearing is mounted in the second spacing region.
6. A six degree of freedom constrained flexible assembly tool as claimed in claim 3, wherein: the vertical moving part comprises a vertical rail (122) and a vertical rail sliding block (121), the vertical rail (122) is arranged on the bottom plate (108), the vertical rail sliding block (121) is arranged on the test frame (111), and the vertical rail sliding block (121) is slidably arranged on the vertical rail (122).
7. The six-degree-of-freedom constrained flexible assembly tool according to claim 1, wherein: the end face, connected with the product, of the flexible rod (106) is provided with an opening, and one face, far away from the product, of the flexible rod (106) is connected with the flexible rod taper sleeve (105) through a bolt.
8. The six-degree-of-freedom constrained flexible assembly tool according to claim 1, wherein: a flexible groove (116) is arranged on the flexible rod (106).
9. The six-degree-of-freedom constrained flexible assembly tool according to claim 1, wherein: the flexible rod (106) is a stepped rod, and the large end of the stepped rod is connected with the flexible rod taper sleeve (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320898911.5U CN220162333U (en) | 2023-04-20 | 2023-04-20 | Six-degree-of-freedom constrained flexible assembly tool |
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| CN202320898911.5U CN220162333U (en) | 2023-04-20 | 2023-04-20 | Six-degree-of-freedom constrained flexible assembly tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A flexible assembly fixture with six degrees of freedom constraints Granted publication date: 20231212 Pledgee: Chengdu Rural Commercial Bank Co.,Ltd. Shuangliu Branch Pledgor: Sichuan Zhongke Chengguang Technology Co.,Ltd. Registration number: Y2024980039437 |