CN114083199A - Accelerometer core assembling device and method - Google Patents
Accelerometer core assembling device and method Download PDFInfo
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- CN114083199A CN114083199A CN202010856667.7A CN202010856667A CN114083199A CN 114083199 A CN114083199 A CN 114083199A CN 202010856667 A CN202010856667 A CN 202010856667A CN 114083199 A CN114083199 A CN 114083199A
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- positioning
- torquer
- assembly
- accelerometer
- supporting seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention provides an accelerometer movement assembling device and an accelerometer movement assembling method, wherein the accelerometer movement assembling device comprises the following steps: the positioning assembly comprises a supporting seat and a positioning sleeve which can be separately butted with the supporting seat, wherein a slot is arranged on the supporting seat and can be coaxially matched with the lower torquer, a positioning cavity is arranged in the positioning sleeve and can be coaxially matched with the upper torquer, the slot is communicated with the positioning cavity in the butted state of the supporting seat and the positioning sleeve, and the central axis of the slot is superposed with the central axis of the positioning cavity; the pressurizing assembly comprises a fixed frame with a base and a pressurizing rod which is connected with the fixed frame in a linear moving mode and is arranged opposite to the base. The invention ensures the coaxiality of the assembly of the watch core and improves the assembly quality.
Description
Technical Field
The invention relates to the technical field of accelerometers, in particular to an accelerometer movement assembling device and an accelerometer movement assembling method.
Background
The watch core is formed by connecting an upper torquer, a pendulum assembly and a lower torquer through a belly belt, the upper torquer, the pendulum assembly and the lower torquer are all provided with circular peripheries with the same diameter, and the pendulum assembly is clamped in the middle by the upper torquer and the lower torquer. The lower torquer is provided with a binding post and used for realizing the electrical connection of the pendulum assembly and external equipment. After the meter core is assembled, the central axes of the upper torquer and the lower torquer are ideally overlapped with the central axis of the pendulum assembly, and the relative positions of the three components are not changed in the working process of the accelerometer. However, due to the influence of the machining precision of the parts, the outer diameters of the upper torquer, the lower torquer and the pendulum assembly often have large differences due to tolerance ranges, and particularly, the pendulum assembly is made of quartz material, so that the machining precision is poorly controlled. The upper torquer, the pendulum assembly and the lower torquer are positioned by clinging the circumferential outer wall of the part to two inclined planes of the V-shaped block in the prior art.
The currently common watch core assembling method generally positions an upper torquer, a pendulum assembly and a lower torquer by means of a V-shaped block and by means of simultaneously clinging the circumferential outer wall of a part to two inclined planes of the V-shaped block. In order to avoid that the relative positions of the parts change during the vibration process, the pressing force is always kept among the three parts. The concrete implementation mode is that after the positions of the three components are aligned, axial pressure is applied to the upper torquer, the pendulum assembly and the lower torquer through the tool, and then the upper torquer and the lower torquer are fixed through the metal rings in the state that the pressure exists, so that stable connection of the three components is achieved. However, the positioning by using the V-shaped auxiliary block commonly used at present can only ensure that two tangential planes on the periphery of the component are in linear arrangement, and the positions of central axes of the three components are still influenced by the size difference of the outer diameters of the parts. In the actual production process, the problem that assembly coaxiality does not reach the standard due to different diameters of parts, so that a watch core fails and waste is caused frequently exists.
Disclosure of Invention
The invention aims to provide an accelerometer core assembling device and an accelerometer core assembling method, which are used for solving the problem that the assembling coaxiality of a core does not reach the standard in the prior art.
In order to achieve the above object, the present invention provides an accelerometer core assembling device, which includes: the positioning assembly comprises a supporting seat and a positioning sleeve which can be separately butted with the supporting seat, a cylindrical slot used for accommodating the lower part of a lower torquer is arranged on the supporting seat, the slot can be coaxially matched with the lower torquer, a cylindrical positioning cavity used for accommodating the upper part of the lower torquer, a swing assembly and an upper torquer is arranged in the positioning sleeve, the positioning cavity can be coaxially matched with the upper torquer, the slot is communicated with the positioning cavity in the butted state of the supporting seat and the positioning sleeve, and the central axis of the slot is superposed with the central axis of the positioning cavity; the pressurizing assembly comprises a fixed frame with a base and a pressurizing rod which can be linearly moved, is connected with the fixed frame and is opposite to the base, the positioning assembly is placed on the base, the axial direction of the assembling cavity is parallel to the moving direction of the pressurizing rod, and the pressurizing rod extends into the positioning sleeve and applies axial pressure to the lower torquer, the pendulum assembly and the upper torquer in the positioning cavity by moving towards the positioning assembly.
The accelerometer core assembling device as described above, wherein the positioning assembly further includes a plurality of first positioning elements threadedly connected to the support base, a plurality of second positioning elements threadedly connected to the positioning sleeve, and a plurality of third positioning elements threadedly connected to the positioning sleeve, each of the first positioning elements is radially disposed along the slot, the plurality of first positioning elements are spaced apart from each other along a circumferential direction of the slot and extend into the slot to abut against an outer sidewall of the lower torquer, each of the first positioning elements and each of the second positioning elements are radially disposed along the positioning cavity, the plurality of second positioning elements are spaced apart from each other along the circumferential direction of the positioning cavity and extend into the positioning cavity to abut against an outer sidewall of the pendulum assembly, and the plurality of third positioning elements are spaced apart from each other along the circumferential direction of the positioning cavity and extend into the positioning cavity, so as to prop against the outer side wall of the upper torquer.
As above accelerometer watch core assembly quality, wherein, first setting element is for having ripples pearl screw or bulb plunger of scalable end, the scalable end top of first setting element supports down the lateral wall of torquer, the ripples pearl screw or bulb plunger of second setting element for having scalable end, the scalable end top of second setting element supports the lateral wall of pendulum subassembly, the ripples pearl screw or bulb plunger of third setting element for having scalable end, the scalable end top of third setting element supports the lateral wall of last torquer.
The accelerometer movement assembling device comprises a base, a support seat, a positioning sleeve, a positioning cavity, a pressure rod, a lower torquer, a pendulum assembly and an upper torquer, wherein the lower thrust bearing is arranged at the bottom of the support seat, the support seat is arranged on the base through the lower thrust bearing, the upper thrust bearing is arranged in the positioning sleeve and is positioned above the positioning cavity, and the pressure rod applies pressure to the lower torquer, the pendulum assembly and the upper torquer in the axial direction through pressurizing the upper thrust bearing.
As above accelerometer watch core assembly quality, wherein, the bottom of supporting seat is equipped with the reference column, be fixed with the jump ring on the outer wall of reference column, lower thrust bearing cover is in outside the reference column, just lower thrust bearing centre gripping in the jump ring with between the bottom surface of supporting seat, be equipped with the confession in the base reference column male jack, the jack can with reference column clearance fit.
The accelerometer movement assembling device comprises a base, a plurality of spring plungers, a plurality of pressure rods, a plurality of supporting seats and a plurality of pressure rods, wherein the base is provided with the spring plungers, the spring plungers are in threaded connection with the base, the axial direction of each spring plunger is parallel to the moving direction of the pressure rod, each spring plunger is provided with a telescopic end, the telescopic ends of the spring plungers protrude out of the base, the top surfaces of the telescopic ends of the spring plungers are located on the same plane, and the base supports the supporting seats through the telescopic ends of the spring plungers.
The accelerometer movement assembling device as described above, wherein the pressure rod includes a threaded section, a reducing section and a pressure head which are connected in sequence, the pressure rod is in threaded connection with the fixed frame through the threaded section, the diameter of the reducing section is smaller than that of the pressure head, and the diameter of the reducing section is not larger than the width of the opening of the accelerometer belly band.
As above accelerometer table core assembly quality, wherein, the pressure bar is still including connecting the screw thread section with joint section between the reducing section, the joint section is equipped with double-end ripples pearl screw, double-end ripples pearl screw is followed the radial direction of joint section runs through the joint section and with joint section threaded connection the pressure bar is right in the locating cavity down the torquer pendulum subassembly with under the state that axial pressure was applyed to last torquer, through inciting somebody to action locating sleeve stimulates extremely joint section department makes locating sleeve's inner wall with the both ends joint location of double-end ripples pearl screw.
The accelerometer core assembling device comprises a supporting seat, wherein the supporting seat is provided with a through hole for penetrating a signal line of the lower torquer, and the bottom wall of the slot is provided with an annular groove for placing a binding post of the lower torquer.
The invention also provides an accelerometer core assembling method, which adopts the accelerometer core assembling device to assemble the lower torquer, the pendulum assembly and the upper torquer, and the accelerometer core assembling method comprises the following steps: horizontally placing the supporting seat on a horizontal plane, and inserting the lower part of the lower torquer into the slot on the supporting seat; placing the supporting seat on a base of the fixed frame; stacking the pendulum assembly on the lower torquer, and adjusting the position of the pendulum assembly to enable the outer peripheral wall of the pendulum assembly to be aligned with the outer peripheral wall of the lower torquer; the upper torquer is arranged in a positioning cavity in the positioning sleeve; butting the positioning sleeve with the supporting seat in a posture that the positioning cavity faces the supporting seat, wherein the central axis of the positioning cavity of the positioning sleeve is superposed with the central axis of the slot of the supporting seat, and the lower torquer, the pendulum assembly and the upper torquer are coaxially positioned; moving the pressurizing rod towards the direction close to the positioning component, so that the pressurizing rod extends into the positioning sleeve and applies axial pressure to the lower torquer, the pendulum component and the upper torquer in the positioning cavity until the preset pressure is reached; moving the positioning sleeve towards the direction far away from the supporting seat to separate the positioning sleeve from the supporting seat, wherein the upper part of the lower torquer, the pendulum assembly and the upper torquer are exposed outside; and (3) enabling an opening of the accelerometer web band to penetrate through the pressurizing rod from the lateral direction of the pressurizing rod, enabling the accelerometer web band to be sleeved on the outer side of the pressurizing rod, moving the accelerometer web band to a position between the lower torquer and the upper torquer along the pressurizing rod, and fixedly connecting the accelerometer web band with the lower torquer and the upper torquer respectively.
The accelerometer core assembling device and the accelerometer core assembling method have the characteristics and advantages that:
1. the lower torquer, the pendulum assembly and the upper torquer are coaxially positioned by arranging the supporting seat and the positioning sleeve, and axial pressure is applied to the lower torquer, the pendulum assembly and the upper torquer by arranging the pressurizing assembly, so that not only is the pressing force kept among the lower torquer, the pendulum assembly and the upper torquer, but also the lower torquer, the pendulum assembly and the upper torquer are still coaxially kept in an exposed state after the positioning sleeve is taken away, the lower torquer, the pendulum assembly and the upper torquer are fixedly connected together, the coaxiality of meter core assembly is ensured, the assembly quality is improved, the assembly yield is improved, the operation is simple, and the use is convenient;
2. according to the invention, the positions of the lower torquer, the pendulum assembly and the upper torquer can be further adjusted from the radial direction perpendicular to the axial direction by arranging the first positioning piece, the second positioning piece and the third positioning piece, so that the fine adjustment of the coaxiality of the lower torquer, the pendulum assembly and the upper torquer is realized, the assembly precision is further improved, and the assembly coaxiality is ensured.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic view of a support base according to the present invention;
FIG. 2 is a schematic view of the lower torque device and pendulum assembly being placed on a support base;
FIG. 3 is a schematic view of a positioning sleeve according to the present invention;
FIG. 4 is a schematic view of the placement of the upper torquer within the alignment sleeve;
FIG. 5 is a schematic view of a positioning assembly of the present invention;
FIG. 6 is a schematic view of a pressurization lever according to the present invention;
FIG. 7 is a schematic view of a compression assembly of the present invention;
FIG. 8 is a schematic view of the compression bar during assembly;
fig. 9 is a schematic view of the separation of the retainer sleeve from the support block during assembly.
Main element number description:
1. a positioning assembly;
11. a supporting seat; 111. a slot; 112. an annular groove;
12. a positioning sleeve; 121. a positioning cavity; 122. an upper chamber; 123. a lower chamber;
13. a first positioning member; 14. a second positioning member; 15. a third positioning member; 16. a lower thrust bearing;
17. an upper thrust bearing; 18. a positioning column; 19. a clamp spring;
2. a pressurizing assembly;
21. a fixed frame; 211. a base; 212. a jack; 213. a strut; 214. an upper cantilever;
22. a pressurizing rod; 221. a threaded segment; 222. a reducing section; 223. a pressurizing head; 224. a clamping section;
23. a spring plunger; 24. a double-headed wave-bead screw;
100. a lower torquer; 200. a pendulum assembly; 300. an upper torquer; 400. and a signal line.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Where adjective or adverbial modifiers "upper" and "lower", "top" and "bottom", "inner" and "outer" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms. Furthermore, the terms "first", "second", etc. 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, whereby a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 9, the present invention provides an accelerometer core assembling device, which includes a positioning assembly 1 and a pressurizing assembly 2, wherein the positioning assembly 1 includes a supporting seat 11 and a positioning sleeve 12 that can be separately butted with the supporting seat 11, a cylindrical slot 111 for accommodating a lower portion of a lower torquer 100 is disposed on the supporting seat 11, the slot 111 can be coaxially matched with the lower torquer 100, a cylindrical positioning cavity 121 for accommodating an upper portion of the lower torquer 100, a pendulum assembly 200 and an upper torquer 300 is disposed in the positioning sleeve 12, the positioning cavity 121 can be coaxially matched with the upper torquer 300, in a state where the supporting seat 11 is butted with the positioning sleeve 12, the slot 111 is communicated with the positioning cavity 121, and a central axis of the slot 111 coincides with a central axis of the positioning cavity 121, so as to coaxially position the lower torquer 100, the pendulum assembly 200 and the upper torquer 300;
the pressurizing assembly 2 comprises a fixed frame 21 with a base 211 and a pressurizing rod 22 which is connected with the fixed frame 21 in a linear moving mode and is arranged opposite to the base 211, in the state that the positioning assembly 1 is placed on the base 211, the axial direction of the assembling cavity is parallel to the moving direction of the pressurizing rod 22, the pressurizing rod 22 extends into the positioning sleeve 12 by moving the pressurizing rod 22 towards the positioning assembly 1, axial pressure is applied to the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 in the positioning cavity 121, and the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are kept in a pressing force by applying the axial pressure, so that the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are kept coaxial in an exposed state after the positioning sleeve 12 is removed, and the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are fixedly connected together.
The lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are coaxially positioned by arranging the supporting seat 11 and the positioning sleeve 12, the coaxiality of assembly is ensured, the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are axially pressed by arranging the pressurizing assembly 2, so that not only is the pressing force kept among the lower torquer 100, the pendulum assembly 200 and the upper torquer 300, but also the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are still coaxially kept in an exposed state after the positioning sleeve 12 is taken away, the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are fixedly connected together, the assembly quality is improved, the assembly yield is improved, the operation is simple, and the use is convenient.
The accelerometer core assembling device is used for assembling the lower torquer 100, the pendulum assembly 200 and the upper torquer 300, and comprises the following operation steps:
step S10: horizontally placing the support seat 11 on a horizontal plane, and inserting the lower part of the lower moment instrument 100 into the slot 111 of the support seat 11;
step S20: placing the support base 11 on the base 211 of the fixed frame 21;
step S30: stacking the pendulum assembly 200 on the lower torquer 100, and adjusting the position of the pendulum assembly 200 such that the outer peripheral wall of the pendulum assembly 200 is substantially aligned with the outer peripheral wall of the lower torquer 100;
step S40: installing the upper torquer 300 into the positioning cavity 121 in the positioning sleeve 12;
step S50: butting the positioning sleeve 12 with the supporting seat 11 in a posture that the positioning cavity 121 faces the supporting seat 11, wherein the central axis of the positioning cavity 121 of the positioning sleeve 12 is overlapped with the central axis of the slot 111 of the supporting seat 11, and the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are coaxially positioned;
step S60: moving the pressurizing rod 22 towards the positioning assembly 1, so that the pressurizing rod 22 extends into the positioning sleeve 12 and applies axial pressure on the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 in the positioning cavity 121 until a preset pressure is reached;
step S70: moving the positioning sleeve 12 away from the support base 11 to separate the positioning sleeve 12 from the support base 11, wherein the upper portion of the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are exposed;
step S80: the assembly is completed by passing the opening of the accelerometer web through the pressure bar 22 from the side of the pressure bar 22, fitting the accelerometer web over the outside of the pressure bar 22, moving the accelerometer web along the pressure bar 22 to a position between the lower torquer 100 and the upper torquer 300, and fixedly connecting the accelerometer web to the lower torquer 100 and the upper torquer 300, respectively, for example by welding or other fixed connection means.
Further, the slot 111 is clearance-fitted with the lower torque device 100 to ensure the coaxiality of the slot 111 and the lower torque device 100. For example, the inner diameter of the slot 111 is 0.02mm to 2mm, preferably 0.5mm, larger than the outer diameter of the lower torque device 100; the inner diameter of the slot 111 is 3mm to 9mm, and the depth of the slot 111 is 5 mm.
Further, positioning cavity 121 is in clearance fit with upper torquer 300 to ensure coaxiality of positioning cavity 121 and upper torquer 300. Because the diameters of lower torquer 100, pendulum assembly 200, and upper torquer 300 are substantially equal, positioning cavity 121 is also a clearance fit with lower torquer 100 and pendulum assembly 200. For example, the inner diameter of the positioning cavity 121 is 0.02mm to 2mm, preferably 0.5mm, larger than the outer diameter of the upper torquer 300.
As shown in fig. 2 and 4, further, the depth of the insertion groove 111 is smaller than the height of the lower torquer 100, the depth of the positioning cavity 121 is larger than the sum of the heights of the pendulum assembly 200 and the upper torquer 300 and smaller than the sum of the heights of the lower torquer 100, the pendulum assembly 200 and the upper torquer 300, and the sum of the depths of the insertion groove 111 and the positioning cavity 121 is equal to the sum of the heights of the lower torquer 100, the pendulum assembly 200 and the upper torquer 300.
As shown in fig. 5, further, the positioning sleeve 12 can be inserted into and positioned on the supporting seat 11, so as to realize the butt joint and separation of the two through insertion and extraction, which is convenient for operation. In step S50, the positioning sleeve 12 is engaged with the supporting seat 11 in a posture that the positioning cavity 121 faces the supporting seat 11, so as to realize the insertion with the supporting seat 11. For example, the support seat 11 can be inserted into the positioning sleeve 12, and the outer diameter of the support seat 11 is 20mm to 40mm, preferably 36 mm.
As shown in fig. 7, the pressurizing rod 22 is further screwed to the fixed frame 21, so that fine and precise control of the pressure can be achieved, and the pressurizing rod 22 can be driven to move linearly by rotating the pressurizing rod 22, and the operation is simple.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 8, in an embodiment, the positioning assembly 1 further includes a plurality of first positioning members 13 in threaded connection with the supporting seat 11, a plurality of second positioning members 14 in threaded connection with the positioning sleeve 12, and a plurality of third positioning members 15 in threaded connection with the positioning sleeve 12, each of the first positioning members 13 is respectively disposed along a radial direction of the slot 111, the plurality of first positioning members 13 are arranged at intervals along a circumferential direction of the slot 111 and extend into the slot 111 to abut against an outer sidewall of the lower torquer 100 along the radial direction thereof at an outer peripheral side of the lower torquer 100, so as to fix the lower torquer 100 in the slot 111; each first positioning member 13 and each second positioning member 14 are respectively arranged along the radial direction of the positioning cavity 121, and a plurality of second positioning members 14 are arranged at intervals along the circumferential direction of the positioning cavity 121 and extend into the positioning cavity 121 to abut against the outer side wall of the pendulum assembly 200 along the radial direction thereof on the outer circumferential side of the pendulum assembly 200, so that the pendulum assembly 200 is fixed in the positioning cavity 121; the third positioning members 15 and the second positioning members 14 are spaced in the axial direction of the positioning sleeve 12 to correspond to the upper torquer 300 and the pendulum assembly 200, respectively, and a plurality of the third positioning members 15 are arranged at intervals in the circumferential direction of the positioning cavity 121 and extend into the positioning cavity 121 to abut against the outer side wall of the upper torquer 300 in the radial direction thereof on the outer circumferential side thereof, thereby fixing the upper torquer 300 in the positioning cavity 121.
When the assembling apparatus of the present embodiment is used for assembling, in step S10, after the lower portion of the lower torque device 100 is inserted into the slot 111 of the supporting seat 11, each first positioning member 13 is rotationally adjusted to fix the lower torque device 100 in the slot 111 by the plurality of first positioning members 13; in step S40, after the upper torquer 300 is installed in the positioning cavity 121 of the positioning sleeve 12, each third positioning member 15 is rotationally adjusted to fix the upper torquer 300 in the positioning cavity 121 by the plurality of third positioning members 15; in step S50, after the positioning sleeve 12 is abutted to the supporting seat 11 with the positioning cavity 121 facing the supporting seat 11, each second positioning element 14 is rotationally adjusted, and the signal output of the watch movement is measured through the external device, if the signal output is normal, it indicates that the coaxiality of the pendulum assembly 200, the lower torquer 100 and the upper torquer 300 meets the requirement, and if the signal output is abnormal, each second positioning element 14 is continuously rotationally adjusted to adjust the position of the pendulum assembly 200 until the signal output is normal.
In this embodiment, by providing the first positioning element 13, the second positioning element 14 and the third positioning element 15, the positions of the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 can be further adjusted from the radial direction perpendicular to the axial direction, so as to achieve fine adjustment of the coaxiality of the lower torquer 100, the pendulum assembly 200 and the upper torquer 300, thereby further improving the assembly accuracy and ensuring the assembly coaxiality.
For example, the number of the first positioning members 13 is three, three first positioning members 13 are arranged around the insertion groove 111 at equal intervals of 120 °, the number of the second positioning members 14 is three, three second positioning members 14 are arranged around the positioning cavity 121 at equal intervals of 120 °, the number of the third positioning members 15 is three, and three third positioning members 15 are arranged around the positioning cavity 121 at equal intervals of 120 °.
Further, the first positioning element 13 is a ball screw or a ball plunger having a retractable end, the retractable end of the first positioning element 13 abuts against the outer side wall of the lower torquer 100, the second positioning element 14 is a ball screw or a ball plunger having a retractable end, the retractable end of the second positioning element 14 abuts against the outer side wall of the pendulum assembly 200, the third positioning element 15 is a ball screw or a ball plunger having a retractable end, and the retractable end of the third positioning element 15 abuts against the outer side wall of the upper torquer 300.
Specifically, the ball head is arranged at the telescopic end of the ball screw and the ball head plunger, the ball head can move under the elastic force action of the spring to realize the telescopic action, the first positioning piece 13, the second positioning piece 14 and the third positioning piece 15 respectively prop against the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 through the respective telescopic ends, so that the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 can be positioned, and the outer side walls of the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 cannot be damaged. The structures of the wave ball screw and the ball plunger are the prior art, and the invention is not repeated in detail.
For example, the ball of the ball screw and the ball plunger has a diameter of 0.8mm, and the ball of the second positioning member 14 contacting the pendulum assembly 200 is made of a polymer material.
As shown in fig. 1 and 4, in one embodiment, the bottom of the supporting seat 11 is provided with a lower thrust bearing 16, the supporting seat 11 is seated on the base 211 through the lower thrust bearing 16, the positioning sleeve 12 is provided with an upper thrust bearing 17, the upper thrust bearing 17 is located above the positioning cavity 121, and the pressurizing rod 22 applies axial pressure to the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 by pressurizing the upper thrust bearing 17. In the embodiment, the axial pressure is transmitted through the thrust bearing, so that direct contact between the upper torquer 300 and the pressurizing rod 22 and between the lower torquer 100 and the base 211 is avoided, and the upper torquer 300 and the lower torquer 100 are protected.
During assembly, in step S50, after the positioning sleeve 12 is abutted against the support seat 11 with the positioning cavity 121 facing the support seat 11, the upper thrust bearing 17 is placed in the positioning sleeve 12 above the positioning cavity 121, that is, the upper thrust bearing 17 is placed on the top surface of the upper torquer 300; in step S60, the pressing lever 22 is moved toward the positioning assembly 1, the pressing lever 22 is brought into contact with the upper thrust bearing 17 and applies pressure to the upper thrust bearing 17.
As shown in fig. 1 and 8, further, the bottom of the supporting seat 11 is provided with a cylindrical positioning column 18, a clamp spring 19 is fixed on the outer wall of the positioning column 18, the lower thrust bearing 16 is sleeved outside the positioning column 18, and the lower thrust bearing 16 is clamped between the clamp spring 19 and the bottom surface of the supporting seat 11, namely, the two axial ends of the lower thrust bearing 16 respectively abut against the top surface of the clamp spring 19 and the bottom surface of the supporting seat 11, a jack 212 for inserting the positioning column 18 is arranged in the base 211, the jack 212 can be in clearance fit with the positioning column 18, namely, the jack 212 is in coaxial fit with the positioning column 18, so as to position the supporting seat 11 on the base 211. In assembling, in step S20, the support base 11 is placed on the base 211 of the fixing frame 21, and the positioning post 18 is inserted into the insertion hole 212 of the base 211.
As shown in fig. 1 and 4, an upper chamber 122 located above the positioning cavity 121 and a lower chamber 123 located below the positioning cavity 121 are further arranged in the positioning sleeve 12, the lower chamber 123, the positioning cavity 121 and the upper chamber 122 are sequentially communicated from bottom to top, central axes of the three are overlapped, an inner diameter of the lower chamber 123 is larger than an inner diameter of the positioning cavity 121, an inner diameter of the upper chamber 122 is smaller than the inner diameter of the positioning cavity 121, the upper thrust bearing 17 is arranged in the upper chamber 122, and the upper thrust bearing 17 is in clearance fit with the upper chamber 122; the lower cavity 123 is used for inserting the cylindrical support seat 11 and is in clearance fit with the support seat 11, so as to realize the inserting positioning of the positioning sleeve 12 and the support seat 11.
As shown in fig. 7 and 8, in one embodiment, a plurality of spring plungers 23 are provided on the base 211, each spring plunger 23 is screwed to the base 211, an axial direction of each spring plunger 23 is parallel to a moving direction of the pressure rod 22, the spring plungers 23 have retractable ends, the retractable ends of the spring plungers 23 protrude from the base 211, top surfaces of the retractable ends of the plurality of spring plungers 23 are located on the same plane to stably support the positioning assembly 1, and the base 211 supports the support base 11 through the retractable ends of the spring plungers 23. Specifically, the retractable end of the spring plunger 23 has a ball head, and the ball head can move under the elastic force of the spring to achieve the retraction, and the structure of the spring plunger 23 is the prior art, so that the present invention is not described in detail herein.
In assembling, in step S20, the support base 11 is placed on the ball heads of the plurality of spring plungers 23, and the positioning posts 18 are inserted into the insertion holes 212 of the base 211, while the lower thrust bearings 16 at the bottom of the support base 11 are in direct contact with the ball heads at the tops of the plurality of spring plungers 23.
For example, the number of the spring plungers 23 is three or more, the plurality of spring plungers 23 are arranged at equal intervals in a ring shape, the diameter of each spring plunger 23 is 2mm to 8mm, the maximum moving distance of the ball head at the top of each spring plunger 23 is 10mm, and the maximum pressure which can be borne by each spring plunger 23 is 60N.
As shown in fig. 6 and 7, in one embodiment, the pressure rod 22 includes a threaded section 221, a reduced diameter section 222 and a pressure head 223 connected in sequence in a direction close to the base 211, the pressure rod 22 is in threaded connection with the fixed frame 21 through the threaded section 221, the pressure rod 22 applies axial pressure through the pressure head 223, the diameter of the reduced diameter section 222 is smaller than that of the pressure head 223, and the diameter of the reduced diameter section 222 is not larger than the width of the opening of the accelerometer binder. In assembly, in step S80, the opening of the accelerometer web is passed through the reduced diameter section 222 of the pressure bar 22 from the side of the reduced diameter section 222 to fit the accelerometer web outside the pressure bar 22.
Further, the threaded section 221 of the pressure rod 22 is provided with length scales, and the moving distance of the pressure rod 22 can be known by reading the scales, so that the pressure can be conveniently adjusted.
As shown in fig. 6, 7, 8 and 9, further, the pressure lever 22 further includes a clamping section 224 connected between the threaded section 221 and the reduced diameter section 222, the clamping section 224 is provided with a double-headed wave ball screw 24, the double-headed wave ball screw 24 penetrates through the clamping section 224 along a radial direction of the clamping section 224 and is in threaded connection with the clamping section 224, two ends of the double-headed wave ball screw 24 are telescopic ends with ball heads, the two telescopic ends are respectively located at two opposite sides of the clamping section 224, and the positioning sleeve 12 can be fixed at the clamping section 224 by pulling the positioning sleeve 12 up to the clamping section 224 to clamp and position the inner wall of the positioning sleeve 12 with two ends of the double-headed wave ball screw 24 in a clamping manner in a state that the pressure lever 22 applies axial pressure to the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 in the positioning cavity 121.
During assembly, in step S70, the positioning sleeve 12 is moved in a direction away from the supporting seat 11 until the positioning sleeve 12 is engaged with the double-headed wave-ball screw 24 for positioning, so that the positioning sleeve 12 is fixed above the reduced diameter section 222 of the pressure rod 22, the positioning sleeve 12 is prevented from falling down, and the abdominal belt of the accelerometer can be conveniently sleeved from the reduced diameter section 222 and can be fixedly connected with the lower moment device 100 and the upper moment device 300.
For example, the diameter of the threaded section 221 of the pressure rod 22 is 5mm to 25mm, preferably 15mm, the diameter of the threaded section 221 is 0.5mm to 6mm, preferably 1mm larger than the diameter of the catching section 224, the diameter of the reduced diameter section 222 is 1mm to 6mm smaller than the diameter of the catching section 224, and the diameter of the reduced diameter section 222 is preferably 6 mm.
As shown in fig. 1, 2 and 8, in one embodiment, an annular groove 112 for placing a terminal of the lower torquer 100 is formed on a bottom wall of the slot 111, a threading hole for threading a signal wire 400 of the lower torquer 100 is formed in the support base 11, and the threading hole extends from the bottom wall of the slot 111 to an outer wall of the support base 11 to communicate the slot 111 with an outside of the support base 11.
During assembly, in step S10, when the lower portion of the lower torquer 100 is inserted into the slot 111 of the support base 11, the terminal of the lower torquer 100 is inserted into the annular groove 112, and the signal wire 400 of the lower torquer 100 is passed through the threading hole, so as to connect the signal wire 400 with external equipment, and measure the signal output of the watch core.
As shown in fig. 7 and 8, in an embodiment, the fixing frame 21 further includes a supporting rod 213 and an upper suspension arm 214, the base 211, the supporting rod 213 and the upper suspension arm 214 are sequentially connected from bottom to top, the base 211 and the upper suspension arm 214 are disposed opposite and spaced apart, a placing space for placing the positioning assembly 1 is formed between the base 211 and the upper suspension arm 214, and the pressure rod 22 is in threaded connection with the upper suspension arm 214.
As shown in fig. 8 and 9, the present invention further provides an accelerometer core assembling method, which adopts the accelerometer core assembling apparatus to assemble the lower torquer 100, the pendulum assembly 200 and the upper torquer 300, and the accelerometer core assembling method includes the following steps:
step S10: horizontally placing the support seat 11 on a horizontal plane, and inserting the lower part of the lower moment instrument 100 into the slot 111 on the support seat 11;
step S20: placing the support base 11 on the base 211 of the fixed frame 21;
step S30: stacking the pendulum assembly 200 on the lower torquer 100, and adjusting the position of the pendulum assembly 200 such that the outer peripheral wall of the pendulum assembly 200 is substantially aligned with the outer peripheral wall of the lower torquer 100;
step S40: installing the upper torquer 300 into the positioning cavity 121 in the positioning sleeve 12;
step S50: butting the positioning sleeve 12 with the supporting seat 11 in a posture that the positioning cavity 121 faces the supporting seat 11, wherein the central axis of the positioning cavity 121 of the positioning sleeve 12 is overlapped with the central axis of the slot 111 of the supporting seat 11, and the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are coaxially positioned;
step S60: moving the pressurizing rod 22 towards the direction close to the positioning component 1, so that the pressurizing rod 22 extends into the positioning sleeve 12 and applies axial pressure on the lower torquer 100, the pendulum component 200 and the upper torquer 300 in the positioning cavity 121 until reaching the preset pressure;
step S70: moving the positioning sleeve 12 away from the support base 11 to separate the positioning sleeve 12 from the support base 11, wherein the upper portion of the lower torquer 100, the pendulum assembly 200 and the upper torquer 300 are exposed;
step S80: the opening of the accelerometer web is passed through the pressure bar 22 from the side of the pressure bar 22, the accelerometer web is sleeved outside the pressure bar 22, the accelerometer web is moved along the pressure bar 22 to a position between the lower moment device 100 and the upper moment device 300, the accelerometer web is fixedly connected with the lower moment device 100 and the upper moment device 300, respectively, and the assembly of the lower moment device 100, the pendulum assembly 200 and the upper moment device 300 is completed.
The accelerometer meter core assembling device and the assembling method can obviously weaken the influence of the difference of the outer diameters of parts on the assembling precision, effectively overcome the difference of the sizes of the parts, ensure the assembling coaxiality of the parts, and control the pressing force among the lower torquer 100, the pendulum assembly 200 and the upper torquer 300.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention. It should be noted that the components of the present invention are not limited to the above-mentioned whole application, and various technical features described in the present specification can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention.
Claims (10)
1. An accelerometer core assembly apparatus, comprising:
the positioning assembly comprises a supporting seat and a positioning sleeve which can be separately butted with the supporting seat, a cylindrical slot used for accommodating the lower part of a lower torquer is arranged on the supporting seat, the slot can be coaxially matched with the lower torquer, a cylindrical positioning cavity used for accommodating the upper part of the lower torquer, a swing assembly and an upper torquer is arranged in the positioning sleeve, the positioning cavity can be coaxially matched with the upper torquer, the slot is communicated with the positioning cavity in the butted state of the supporting seat and the positioning sleeve, and the central axis of the slot is superposed with the central axis of the positioning cavity;
the pressurizing assembly comprises a fixed frame with a base and a pressurizing rod which can be linearly moved, is connected with the fixed frame and is opposite to the base, the positioning assembly is placed on the base, the axial direction of the assembling cavity is parallel to the moving direction of the pressurizing rod, and the pressurizing rod extends into the positioning sleeve and applies axial pressure to the lower torquer, the pendulum assembly and the upper torquer in the positioning cavity by moving towards the positioning assembly.
2. The accelerometer movement assembling device of claim 1, wherein the positioning assembly further comprises a plurality of first positioning members threadedly coupled to the support base, a plurality of second positioning members threadedly coupled to the positioning sleeve, and a plurality of third positioning members threadedly coupled to the positioning sleeve, each of the first positioning members being disposed radially of the slot, the plurality of first positioning members being spaced apart from each other in a circumferential direction of the slot and extending into the slot so as to abut against an outer sidewall of the lower torquer, each of the first positioning members and each of the second positioning members being disposed radially of the positioning cavity, the plurality of second positioning members being spaced apart from each other in a circumferential direction of the positioning cavity and extending into the positioning cavity so as to abut against an outer sidewall of the pendulum assembly, the plurality of third positioning members being spaced apart from each other in a circumferential direction of the positioning cavity and extending into the positioning cavity, so as to prop against the outer side wall of the upper torquer.
3. The assembly apparatus of claim 2, wherein the first positioning element is a ball screw or a ball plunger having a retractable end, the retractable end of the first positioning element abuts against an outer sidewall of the lower torquer, the second positioning element is a ball screw or a ball plunger having a retractable end, the retractable end of the second positioning element abuts against an outer sidewall of the pendulum assembly, the third positioning element is a ball screw or a ball plunger having a retractable end, and the retractable end of the third positioning element abuts against an outer sidewall of the upper torquer.
4. The accelerometer movement assembly of claim 1 wherein the support base has a lower thrust bearing at a bottom thereof, the support base being seated on the base by the lower thrust bearing, the alignment sleeve having an upper thrust bearing therein, the upper thrust bearing being positioned above the alignment cavity, the pressure bar applying axial pressure to the lower torquer, the pendulum assembly and the upper torquer by applying pressure to the upper thrust bearing.
5. The accelerometer movement assembly of claim 4, wherein the bottom of the support base is provided with a positioning post, a snap spring is fixed on an outer wall of the positioning post, the lower thrust bearing is sleeved outside the positioning post and clamped between the snap spring and the bottom surface of the support base, and the base is provided with a plug hole for inserting the positioning post, and the plug hole can be in clearance fit with the positioning post.
6. The accelerometer movement assembly of any one of claims 1 to 5, wherein the base is provided with a plurality of spring plungers, the spring plungers are threadedly coupled to the base, an axial direction of each spring plunger is parallel to a moving direction of the pressure bar, the spring plungers have retractable ends, the retractable ends of the spring plungers protrude from the base, top surfaces of the retractable ends of the plurality of spring plungers are located on the same plane, and the base supports the support base through the retractable ends of the spring plungers.
7. The accelerometer movement assembly of any one of claims 1 to 5, wherein the compression bar includes a threaded section, a reduced diameter section, and a compression head connected in series, the compression bar being threadedly connected to the fixed frame through the threaded section, the reduced diameter section having a diameter smaller than that of the compression head, and the reduced diameter section having a diameter not greater than the width of the opening of the accelerometer web.
8. The accelerometer movement assembling device of claim 7, wherein the pressure bar further comprises a clamping section connected between the thread section and the reducing section, the clamping section is provided with a double-headed wave ball screw, the double-headed wave ball screw penetrates through the clamping section along the radial direction of the clamping section and is in threaded connection with the clamping section, and the pressure bar is used for positioning the inner wall of the positioning sleeve and clamping and positioning the two ends of the double-headed wave ball screw by pulling the positioning sleeve to the clamping section under the condition that the lower torquer, the pendulum assembly and the upper torquer in the positioning cavity apply axial pressure.
9. The accelerometer core assembling device according to any one of claims 1 to 5, wherein the bottom wall of the slot is provided with an annular groove for placing a binding post of the lower torquer, the support seat is provided with a threading hole for threading a signal wire of the lower torquer, and the threading hole extends from the bottom wall of the slot to the outer wall of the support seat so as to communicate the slot with the outside of the support seat.
10. An accelerometer core assembling method, characterized in that the accelerometer core assembling method adopts the accelerometer core assembling device of any one of claims 1 to 9 to assemble a lower torquer, a pendulum assembly and an upper torquer, and the accelerometer core assembling method comprises the following steps:
horizontally placing the supporting seat on a horizontal plane, and inserting the lower part of the lower torquer into the slot on the supporting seat;
placing the supporting seat on a base of the fixed frame;
stacking the pendulum assembly on the lower torquer, and adjusting the position of the pendulum assembly to enable the outer peripheral wall of the pendulum assembly to be aligned with the outer peripheral wall of the lower torquer;
the upper torquer is arranged in a positioning cavity in the positioning sleeve;
butting the positioning sleeve with the supporting seat in a posture that the positioning cavity faces the supporting seat, wherein the central axis of the positioning cavity of the positioning sleeve is superposed with the central axis of the slot of the supporting seat, and the lower torquer, the pendulum assembly and the upper torquer are coaxially positioned;
moving the pressurizing rod towards the direction close to the positioning component, so that the pressurizing rod extends into the positioning sleeve and applies axial pressure to the lower torquer, the pendulum component and the upper torquer in the positioning cavity until the preset pressure is reached;
moving the positioning sleeve towards the direction far away from the supporting seat to separate the positioning sleeve from the supporting seat, wherein the upper part of the lower torquer, the pendulum assembly and the upper torquer are exposed outside;
and (3) enabling an opening of the accelerometer web band to penetrate through the pressurizing rod from the lateral direction of the pressurizing rod, enabling the accelerometer web band to be sleeved on the outer side of the pressurizing rod, moving the accelerometer web band to a position between the lower torquer and the upper torquer along the pressurizing rod, and fixedly connecting the accelerometer web band with the lower torquer and the upper torquer respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010856667.7A CN114083199B (en) | 2020-08-24 | 2020-08-24 | Accelerometer core assembly device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010856667.7A CN114083199B (en) | 2020-08-24 | 2020-08-24 | Accelerometer core assembly device and method |
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| CN114083199A true CN114083199A (en) | 2022-02-25 |
| CN114083199B CN114083199B (en) | 2023-10-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201300296Y (en) * | 2008-11-28 | 2009-09-02 | 国营三四○五厂 | Positioned welding clamp for torquer unit |
| CN102922134A (en) * | 2012-11-15 | 2013-02-13 | 航天科工惯性技术有限公司 | Device of laser welding meter core |
| CN103033645A (en) * | 2012-12-11 | 2013-04-10 | 北京兴华机械厂 | Omniseal gauge outfit and quartz flexure accelerometer |
| CN104384919A (en) * | 2014-08-21 | 2015-03-04 | 航天科工惯性技术有限公司 | Assembling device for quartz flexible accelerometer movement |
| WO2017081502A1 (en) * | 2015-11-09 | 2017-05-18 | Kármán Balázs | Spherical head assembly for attaching an optical and/or electronic device to a stander |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201300296Y (en) * | 2008-11-28 | 2009-09-02 | 国营三四○五厂 | Positioned welding clamp for torquer unit |
| CN102922134A (en) * | 2012-11-15 | 2013-02-13 | 航天科工惯性技术有限公司 | Device of laser welding meter core |
| CN103033645A (en) * | 2012-12-11 | 2013-04-10 | 北京兴华机械厂 | Omniseal gauge outfit and quartz flexure accelerometer |
| CN104384919A (en) * | 2014-08-21 | 2015-03-04 | 航天科工惯性技术有限公司 | Assembling device for quartz flexible accelerometer movement |
| WO2017081502A1 (en) * | 2015-11-09 | 2017-05-18 | Kármán Balázs | Spherical head assembly for attaching an optical and/or electronic device to a stander |
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| CN114083199B (en) | 2023-10-17 |
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