阅读说明：本技术 一种推杆压紧装置、定位组件以及定位装置 (Push rod closing device, locating component and positioner ) 是由 张璐 王辅辅 王珂 乔志宏 许莹 张聚乐 王乐天 于 2021-10-15 设计创作，主要内容包括：本发明涉及一种推杆压紧装置、定位组件以及定位装置,推杆压紧装置包括工作台活动约束座和约束头,约束头安装在工作台活动约束座上,约束头的约束方向与工作台活动约束座的安装方向成角度布置；工作台活动约束座包括约束座主支撑、旋紧手柄以及活动挡块,约束座主支撑上设有装配通孔,活动挡块能够沿装配通孔的周向旋转的嵌设在约束座主支撑的装配通孔内,活动挡块上设有径向布置的手柄滑动槽,旋紧手柄安装在手柄滑动槽内且能够沿手柄滑动槽滑动。采用成角度布置的工作台活动约束座和约束头,通过工作台活动约束座将约束头固定在工作台的合适位置,并对载荷设备提供预紧力,再利用约束头与载荷设备产生摩擦力而保证对载荷设备约束固定。(The invention relates to a push rod pressing device, a positioning assembly and a positioning device, wherein the push rod pressing device comprises a workbench movable restraining seat and a restraining head, the restraining head is installed on the workbench movable restraining seat, and the restraining direction of the restraining head and the installation direction of the workbench movable restraining seat are arranged at an angle; the workbench activity restraint seat comprises a restraint seat main support, a screwing handle and a movable stop block, wherein an assembly through hole is formed in the restraint seat main support, the movable stop block can be embedded in the assembly through hole of the restraint seat main support along the circumferential rotation of the assembly through hole, a handle sliding groove which is radially arranged is formed in the movable stop block, and the screwing handle is installed in the handle sliding groove and can slide along the handle sliding groove. The movable restraint seat and the restraint head are arranged at an angle, the restraint head is fixed at a proper position of the workbench through the movable restraint seat, pretightening force is provided for load equipment, and the restraint head and the load equipment generate friction force to ensure that the load equipment is restrained and fixed.)

1. The push rod pressing device is characterized by comprising a workbench movable restraining seat and a restraining head, wherein the restraining head is installed on the workbench movable restraining seat, and the restraining direction of the restraining head and the installation direction of the workbench movable restraining seat are arranged at an angle; workstation activity restraint seat is including restraint seat main tributary strut, the handle of screwing and activity dog, be equipped with the assembly through-hole on the restraint seat main tributary strut, activity dog can be followed the rotatory inlaying of circumference of assembly through-hole is established in the assembly through-hole of restraint seat main tributary strut, be equipped with the handle sliding tray of radial arrangement on the activity dog, the handle of screwing is installed in the handle sliding tray and can follow the handle sliding tray slides.

2. The push rod compression device as claimed in claim 1, wherein a threaded section is provided at a position near one end of the tightening handle, a handle stopper is provided on the tightening handle, and the handle stopper is spaced apart from the threaded section; the screwing handle is arranged in the handle sliding groove in a penetrating mode, the thread section is located on one side of the bottom of the main restraint seat support, and the handle stop block is located on one side of the top of the main restraint seat support; the movable stop block is clamped in the interval between the handle stop block and the threaded section.

3. The push rod pressing device as claimed in claim 1, wherein the main support of the constraining base comprises a supporting base of the constraining base and an annular pressing block, the supporting base of the constraining base is provided with an assembling through hole, a limiting step is formed in the assembling through hole, the movable stopper is arranged on the limiting step, and the annular pressing block is pressed on the limiting step and is fixedly connected with the supporting base of the constraining base.

4. The push rod pressing device as claimed in claim 1, wherein the bottom of the main support of the constraining seat is provided with a friction member, the friction member is annular and is annularly arranged on the periphery of the assembling through hole.

5. The push rod pressing device as claimed in claim 1, wherein the constraint head comprises a constraint head main support, a rotary pushing handle, an elastic member and a sliding constraint head, a pre-pressing channel is formed in the constraint head main support, the two ends of the pre-pressing channel are respectively an operating end and a pre-pressing end, and the rotary pushing handle is screwed in the operating end of the pre-pressing channel and is elastically connected with the sliding constraint head through the elastic member; the inner side wall of the prepressing channel close to the prepressing end is provided with a circle of annular step, the outer side wall of the sliding restraint head is provided with an annular shoulder, the annular shoulder is abutted against the annular step, and the free end of the sliding restraint head penetrates out of the prepressing end of the prepressing channel.

6. The push rod compression device as claimed in claim 5, wherein the restraint head main support comprises a restraint head support seat and a handle restraint block, a pre-pressing channel is formed in the restraint head support seat, and the handle restraint block is mounted at an operation end of the pre-pressing channel; the rotary propelling handle comprises a first thread section and a second thread section, the outer diameter of the rotary propelling handle is smaller than that of the first thread section, a limiting nut is connected onto the second thread section, the first thread section of the rotary propelling handle is in threaded connection with the handle restraint block, the limiting nut is located on the inner side of the handle restraint block, and the second thread section is in elastic connection with the sliding restraint head through an elastic piece.

7. The push rod pressing device as claimed in claim 5, wherein one end of the rotary pushing handle located in the pre-pressing channel is connected with a pushing block, the pushing block and the sliding constraining head are arranged at intervals, and the pushing block is elastically connected with the sliding constraining head through an elastic member; a rubber pad is arranged on the sliding restraint head, and a part of the rubber pad penetrates out of the prepressing end of the prepressing channel.

8. A positioning assembly, comprising the push rod pressing device as claimed in any one of claims 1 to 7, and further comprising an angle gauge, wherein the bottom of the angle gauge is provided with a guide pin column, and the inner side surface of the angle gauge is provided with a rubber strip.

9. The positioning assembly according to claim 8, wherein the inside surface of the angle gauge is provided with a plurality of through grooves with through tops and closed bottoms, the through grooves are embedded with rubber strips, and a pressing block for pressing the rubber strips is fixed at the tops of the angle gauge.

10. A positioning device comprising a putter compression device as claimed in any one of claims 1 to 7 or a positioning assembly as claimed in any one of claims 8 to 9;

the device also comprises an operation platform, wherein threaded holes which are arranged in an array are formed in the operation platform; or the operation platform is provided with threaded holes which are arranged in an array manner and also provided with two rows of guide pin holes.

Technical Field

The invention relates to the technical field related to equipment positioning in microgravity space, in particular to a push rod pressing device, a positioning assembly and a positioning device.

Background

With the development of manned aerospace technology, the establishment of an environment with people living and working for a long time in outer space becomes the center of gravity of human aerospace industry. The logistics of international space stations is very expensive and difficult compared with the natural exploration activities of any former human, the logistics problem of building bases on the moon and mars in the future is more severe, and especially, the loss caused by ground guarantee delay cannot be estimated in response to emergencies. Therefore, given the initiative of astronauts, the ability to enhance the autonomous maintenance and support of facilities is an important measure to address the logistical replenishment problem by providing a range of tools and technical support to the personnel.

An online maintenance and debugging operation cabinet (hereinafter referred to as an "online cabinet") is a scientific and technical experiment platform for planning an application system of a space station, and mainly provides a working place for on-orbit fault diagnosis, relay-level maintenance and manual or mechanical operation of a payload of the space station. The operation cabinet can utilize the space environmental conditions in the cabin provided by the manned space station and the on-orbit operation, maintenance and replacement capabilities of the astronaut, and can carry out on-orbit maintenance, debugging operation and experimental research based on the resource constraints of external machines, electricity, heat, information, measurement and control and the like.

Because the space station environment is the microgravity environment, the load equipment that needs to be developed on-orbit maintenance and adjustment or experimental research can not be restrained by the friction force generated by the dead weight of the equipment and the bottom like the ground, and the load equipment needs to be installed and fixed on the operation platform arranged in the on-line cabinet. For example, SDU devices which are used in large numbers in space stations, and other non-cooperating load devices (i.e. load devices which do not communicate with the on-line cabinet in advance, or which do not reserve an installation interface in advance). There is a strong need for a versatile device that can restrain some of the above-mentioned load devices.

Disclosure of Invention

The invention provides a push rod pressing device, a positioning assembly and a positioning device in order to solve one or more of the technical problems.

The technical scheme for solving the technical problems is as follows: a push rod pressing device comprises a workbench movable restraining seat and a restraining head, wherein the restraining head is installed on the workbench movable restraining seat, and the restraining direction of the restraining head and the installation direction of the workbench movable restraining seat are arranged at an angle; workstation activity restraint seat is including restraint seat main tributary strut, the handle of screwing and activity dog, be equipped with the assembly through-hole on the restraint seat main tributary strut, activity dog can be followed the rotatory inlaying of circumference of assembly through-hole is established in the assembly through-hole of restraint seat main tributary strut, be equipped with the handle sliding tray of radial arrangement on the activity dog, the handle of screwing is installed in the handle sliding tray and can follow the handle sliding tray slides.

The invention has the beneficial effects that: the invention adopts the workbench movable restraining seat and the restraining head which are arranged at an angle, the restraining head can be fixed at a proper position of the workbench through the workbench movable restraining seat, pretightening force is provided for load equipment, and the restraining head and the load equipment generate friction force to ensure the restraint and fixation of the load equipment. The movable restraint seat of the workbench adopts the rotatable movable stop block, the rotary handle arranged on the movable stop block can move at any position of the movable stop block corresponding to the assembly through hole region, aiming at load equipment with different specifications, a corresponding threaded hole can be found on the workbench, the rotary handle is arranged in the corresponding threaded hole, the positioning of the movable restraint seat of the workbench and the pre-tightening force of the load equipment are realized, and the restraint head is utilized to further restrain and position the load equipment.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, a threaded section is arranged at a position, close to one end, of the screwing handle, a handle stop block is arranged on the screwing handle, and the handle stop block and the threaded section are arranged at intervals; the screwing handle is arranged in the handle sliding groove in a penetrating mode, the thread section is located on one side of the bottom of the main restraint seat support, and the handle stop block is located on one side of the top of the main restraint seat support; the movable stop block is clamped in the interval between the handle stop block and the threaded section.

The beneficial effect of adopting the further scheme is that: the screwing handle is arranged at intervals, the movable stop block is restrained in an interval between the thread section and the handle stop block, the screwing handle is restrained in the handle sliding groove of the movable stop block, the screwing handle can move in the radial direction in the handle sliding groove but cannot be taken out, the movable stop block is limited in the restraint seat main support and can rotate freely, the load equipment is pre-tightened through the restraint seat main support, the screwing handle can reach any position of the corresponding area of the movable stop block and the assembly through hole by utilizing the rotation of the movable stop block and the radial movement of the screwing handle in the handle sliding groove, the screwing handle is ensured to find the corresponding threaded hole on the workbench in a large range, and the thread section at the bottom of the screwing handle is connected with the threaded hole on the workbench.

Furthermore, restraint seat owner supports including restraint seat supporting seat and annular briquetting, be equipped with the assembly through-hole on the restraint seat supporting seat, be formed with spacing step in the assembly through-hole, the setting of activity dog is in on the spacing step, annular briquetting crimping is in on the spacing step and with restraint seat supporting seat fixed connection.

The beneficial effect of adopting the further scheme is that: adopt annular briquetting with the crimping of activity dog on the spacing step of assembly through-hole, the operation such as maintenance is conveniently dismantled.

Further, the bottom of restraint seat owner support is equipped with the friction member, the friction member is annular and the ring is established all sides of assembly through-hole.

The beneficial effect of adopting the further scheme is that: the annular friction piece is adopted, so that friction force can be provided for the restraint seat supporting seat during working, and the assembly connection and the like of the restraint seat supporting seat are facilitated.

Furthermore, the restraint head comprises a restraint head main support, a rotary pushing handle, an elastic piece and a sliding restraint head, a pre-pressing channel is formed in the restraint head main support, the two ends of the pre-pressing channel are respectively an operating end and a pre-pressing end, and the rotary pushing handle is in threaded connection with the inside of the operating end of the pre-pressing channel and is elastically connected with the sliding restraint head through the elastic piece; the inner side wall of the prepressing channel close to the prepressing end is provided with a circle of annular step, the outer side wall of the sliding restraint head is provided with an annular shoulder, the annular shoulder is abutted against the annular step, and the free end of the sliding restraint head penetrates out of the prepressing end of the prepressing channel.

The beneficial effect of adopting the further scheme is that: the elastic piece can be driven by rotating the pushing handle to push the sliding restraining head to move in the pre-pressing channel and provide pressing force for the loading equipment.

Furthermore, the restraint head main support comprises a restraint head support seat and a handle restraint block, and a pre-pressing channel is formed in the restraint head support seat; the rotary propelling handle comprises a first thread section and a second thread section, the outer diameter of the rotary propelling handle is smaller than that of the first thread section, a limiting nut is connected onto the second thread section, the first thread section of the rotary propelling handle is in threaded connection with the handle restraint block, the limiting nut is located on the inner side of the handle restraint block, and the second thread section is in elastic connection with the sliding restraint head through an elastic piece.

The beneficial effect of adopting the further scheme is that: through setting up first screw thread section and second screw thread section to connect limit nut on the second screw thread section, can carry on spacingly to the axial displacement of locking handle.

Furthermore, one end of the rotary propelling handle, which is positioned in the pre-pressing channel, is connected with a push block, the push block and the sliding restraint head are arranged at intervals, and the push block is elastically connected with the sliding restraint head through an elastic piece; a rubber pad is arranged on the sliding restraint head, and a part of the rubber pad penetrates out of the prepressing end of the prepressing channel.

The beneficial effect of adopting the further scheme is that: by adopting the push block and the sliding restraint head which are arranged at intervals, when the push block is driven to be completely pressed with the sliding restraint head, the acting force applied to the sliding restraint head by the elastic piece is constant, and can be preset according to needs (for example, different springs are selected for use), so that the acting force applied to the load equipment by the restraint head is controllable. Adopt the rubber pad, avoid causing damage etc. to load equipment.

The positioning assembly comprises a push rod pressing device and an angle gauge, wherein a guide pin column is arranged at the bottom of the angle gauge, and a rubber strip is arranged on the inner side surface of the angle gauge.

The invention has the beneficial effects that: according to the positioning assembly, the angle gauge and the push rod pressing device are matched for use, the angle gauge can be fixed on the workbench in advance, the load equipment is placed close to the angle gauge in a restraining mode, and then the push rod pressing device is used for restraining and positioning the load equipment. The rubber strip on the angle gauge can protect the load equipment and ensure certain friction force. The positioning can be carried out on the workbench by arranging the guide pin columns on the angle gauge.

Further, a plurality of top through and bottom closed through grooves are formed in the inner side face of the angle gauge, rubber strips are embedded in the through grooves, and pressing blocks pressing the rubber strips are fixed to the top of the angle gauge.

The beneficial effect of adopting the further scheme is that: the pressing block can be adopted to compress and fix the rubber strip in the through groove, and the rubber strip is favorably compressed and fixed.

A positioning device, comprising the push rod pressing device or the positioning assembly;

the device also comprises an operation platform, wherein threaded holes which are arranged in an array are formed in the operation platform; or the operation platform is provided with threaded holes which are arranged in an array manner and also provided with two rows of guide pin holes.

The invention has the beneficial effects that: according to the positioning device, the angle gauge and the push rod pressing device can be matched for use, the angle gauge can be fixed on the workbench in advance, the load equipment is placed close to the angle gauge in a restraining mode, and then the push rod pressing device is used for restraining and positioning the load equipment. When the angle gauge is fixed by matching the guide pin columns with the guide pin holes, after the load equipment is restrained and positioned by the push rod pressing device, the restrained load has higher positioning accuracy, and the load equipment can be operated by a mechanical arm (the mechanical arm has higher requirement on the positioning accuracy of the load equipment) in the state; if the angle gauge is not provided with the guide pin column, the angle gauge is not fixed through the guide pin hole, the load equipment cannot be operated through the mechanical arm at the moment, and only the astronaut can directly and manually operate the load equipment.

Drawings

FIG. 1 is a first schematic view of a movable restraint base and a restraint head of a workbench according to the present invention;

FIG. 2 is a schematic view of a second three-dimensional structure of the movable restraint base and the restraint head of the workbench;

FIG. 3 is a schematic cross-sectional view of a movable restraint base of the workbench according to the present invention;

FIG. 4 is a schematic cross-sectional view of a restraint head according to the present invention;

FIG. 5 is a first perspective view of the angle gauge of the present invention;

FIG. 6 is a schematic perspective view of a second angle gauge of the present invention;

FIG. 7 is a schematic view of the structure of the operation box and the operation table of the present invention;

fig. 8 is a schematic view of the structure of the load device mounted on the work table.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a worktable movable restraint seat; 11. a restraint base support base; 111. a face B; 12. screwing the handle; 13. a movable stop block; 14. a handle sliding groove; 15. a threaded segment; 16. a handle stop; 17. an annular pressing block; 18. a friction member; 19. a limiting step;

2. a restraint head; 21. a restraint head support seat; 211. face A; 22. a handle restraint block; 23. rotating the propulsion handle; 231. a first thread segment; 232. a second thread segment; 24. a spring; 25. sliding the restraint head; 251. an annular shoulder; 26. a limit nut; 27. a push block; 28. a rubber pad; 29. an ear plate;

3. an angle gauge; 31. a guide pin column; 32. a rubber strip; 33. briquetting;

4. an operation table; 41. a threaded hole; 42. a guide pin hole; 43. a weight reduction groove; 44. accommodating grooves;

5. an operation box; 6. a load apparatus.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1 to fig. 3, the push rod pressing device of the present embodiment includes a workbench movable constraining base 1 and a constraining head 2, the constraining head 2 is mounted on the workbench movable constraining base 1, the constraining direction of the constraining head 2 is arranged at an angle to the mounting direction of the workbench movable constraining base 1, the direction of arrow a in fig. 1 is the constraining direction of the constraining head 2, and the direction of arrow b is the mounting direction of the workbench movable constraining base 1; workstation activity restriction seat 1 is including restriction seat owner support, handle 12 and the movable stop dog 13 of screwing, be equipped with the assembly through-hole on the restriction seat owner support, movable stop dog 13 can be followed the rotatory inlaying of circumference of assembly through-hole is established in the assembly through-hole of restriction seat owner support, be equipped with the handle sliding tray 14 of radial arrangement on the movable stop dog 13, the handle 12 of screwing is installed in the handle sliding tray 14 and can follow the handle sliding tray 14 slides.

As shown in fig. 1 and 2, the constraining direction of the constraining head 2 is perpendicular to the mounting direction of the movable constraining base 1 of the workbench. I.e. the squeezing direction of the binding head 2 is arranged perpendicular to the tightening handle 12.

As shown in fig. 1 and 2, the restraint head 2 is provided with an ear plate 29, and can be fixedly connected with the movable restraint base 1 of the workbench through the ear plate 29.

As shown in fig. 3, in a preferred embodiment of the present invention, a threaded section 15 is provided at a position near one end of the tightening handle 12, a handle stop 16 is provided on the tightening handle 12, and the handle stop 16 is spaced from the threaded section 15; the screwing handle 12 is arranged in the handle sliding groove 14 in a penetrating mode, the threaded section 15 is located on one side of the bottom of the main restraint seat support, and the handle stop block 16 is located on one side of the top of the main restraint seat support; the movable stop 13 is clamped in the space between the handle stop 16 and the threaded section 15. Adopt the handle of screwing of interval arrangement, movable stop block restraint is in the interval between screw thread section and handle dog, the handle of screwing restraint is in movable stop block's handle sliding tray, the handle of screwing can be at handle sliding tray internal radial movement but can't take out, movable stop block restriction just can rotate wantonly in restraint seat owner supports, carry out the pretension to load equipment through restraint seat owner supports, usable movable stop block's rotation and the radial movement of the handle of screwing in the handle sliding tray, make the handle of screwing can reach the movable stop block and assemble the regional optional position that corresponds of through-hole, guarantee to screw the handle and can find the screw hole that corresponds on the workstation in the large-scale, and be connected with the screw hole on the workstation through the screw thread section of the handle bottom of screwing.

As shown in fig. 3, a specific solution of this embodiment is that the constraining seat main support includes a constraining seat support 11 and an annular pressing block 17, an assembly through hole is formed on the constraining seat support 11, a limiting step 19 is formed in the assembly through hole, the movable stopper 13 is disposed on the limiting step, and the annular pressing block 17 is pressed on the limiting step and is fixedly connected with the constraining seat support 11. Adopt annular briquetting with the crimping of activity dog on the spacing step of assembly through-hole, the operation such as maintenance is conveniently dismantled.

As shown in fig. 3, a further solution of this embodiment is that a friction member 18 is disposed at the bottom of the main support of the constraining seat, and the friction member 18 is annular and disposed around the assembling through hole. The annular friction piece is adopted, so that friction force can be provided for the restraint seat supporting seat during working, and the assembly connection and the like of the restraint seat supporting seat are facilitated. The friction member 18 may be bonded to the bottom of the restraint base main support or embedded in the bottom of the restraint base main support. The friction piece 18 can be annular rubber strips, can adopt two rubber strips and be embedded into a dovetail groove at the bottom of the main support of the constraint seat, can provide larger friction force during working while preventing falling off, and ensures high reliability of fixation.

In the embodiment, the workbench movable restraining seat and the restraining head which are arranged at an angle are adopted, the restraining head can be fixed at a proper position of the workbench through the workbench movable restraining seat, pretightening force is provided for load equipment, and the restraining head and the load equipment generate friction force to ensure that the load equipment is restrained and fixed. The movable restraint seat of the workbench adopts the rotatable movable stop block, the rotary handle arranged on the movable stop block can move at any position of the movable stop block corresponding to the assembly through hole region, aiming at load equipment with different specifications, a corresponding threaded hole can be found on the workbench, the rotary handle is arranged in the corresponding threaded hole, the positioning of the movable restraint seat of the workbench and the pre-tightening force of the load equipment are realized, and the restraint head is utilized to further restrain and position the load equipment.

Example 2

On the basis of the embodiment 1, as shown in fig. 4, the restraint head 2 of the present embodiment includes a restraint head main support, a rotary push handle 23, an elastic member, and a sliding restraint head 25, wherein a pre-pressing channel is formed in the restraint head main support, two ends of the pre-pressing channel are respectively an operating end and a pre-pressing end, and the rotary push handle 23 is screwed in the operating end of the pre-pressing channel and elastically connected with the sliding restraint head 25 through the elastic member; the inner side wall of the prepressing channel close to the prepressing end is provided with a circle of annular step (the annular step can be a square annular step, a circular annular step or other polygonal annular steps), the outer side wall of the sliding restraint head 25 is provided with an annular shoulder 251, the annular shoulder 251 is abutted against the annular step, and the free end of the sliding restraint head 25 penetrates out of the prepressing end of the prepressing channel. The elastic piece can be driven by rotating the pushing handle to push the sliding restraining head to move in the pre-pressing channel and provide pressing force for the loading equipment.

As shown in fig. 4, a specific solution of this embodiment is that the restraint head main support includes a restraint head support base 21 and a handle restraint block 22, and a pre-pressing channel is formed in the restraint head support base 21; the rotary propulsion handle 23 comprises a first thread section 231 and a second thread section 232, the outer diameter of the second thread section is smaller than that of the first thread section 231, a limiting nut 26 is connected to the second thread section 232, the first thread section 231 of the rotary propulsion handle 23 is in threaded connection with the handle restraint block 22, the limiting nut 26 is located on the inner side of the handle restraint block 22, and the second thread section 232 is in elastic connection with the sliding restraint head 25 through an elastic piece. Through setting up first screw thread section and second screw thread section to connect limit nut on the second screw thread section, can carry on spacingly to the axial displacement of locking handle.

As shown in fig. 4, one end of the rotary push handle 23 in the pre-pressing channel of the present embodiment is connected with a push block 27, the push block 27 and the sliding restraint head 25 are arranged at an interval, and the push block 27 is elastically connected with the sliding restraint head 25 through an elastic member; the sliding restraint head 25 is provided with a rubber pad 28, and a part of the rubber pad 28 penetrates out of the prepressing end of the prepressing channel. By adopting the push block and the sliding restraint head which are arranged at intervals, when the push block is driven to be completely pressed with the sliding restraint head, the acting force applied to the sliding restraint head by the elastic piece is constant, and can be preset according to needs (for example, different springs are selected for use), so that the acting force applied to the load equipment by the restraint head is controllable. Adopt the rubber pad, avoid causing damage etc. to load equipment. The arrangement of the elastic piece and the rubber pad on the sliding restraint head can provide a stable and reliable consistent fixing mode, and is not affected by the difference of operators.

According to the working principle of the push rod pressing device of the embodiment, the surface B111 of the restraint base support base 11 and the surface A211 of the restraint head support base 21 are abutted against the surface of the load equipment 6, the corresponding threaded hole 41 is found on the workbench 4 through the workbench movable restraint base 1, the threaded section 15 at the bottom is screwed into the threaded hole 41 through the screwing handle 12, and at the moment, the friction piece 18 at the bottom of the restraint base support base 11 is in contact deformation with the workbench 4 (friction force is increased), so that the whole workbench movable restraint base 1 is fixed on the workbench 4. Then, the rotary push handle 23 of the restraint head 2 is rotated to push the push block 27 to move towards the spring side, the push block is tightly abutted to the sliding restraint head 25, at the moment, the rotary push handle 23 cannot rotate, the spring 24 is compressed to a preset compression position to generate a preset spring force, at the moment, the rubber pad 28 is in surface contact with the load equipment 6 and generates deformation (the rubber pad and the load equipment 6 generate a high friction coefficient), and meanwhile, the load equipment 6 is provided with a spring pretightening force, so that the friction fixing restraint of the movable restraint seat of the workbench is not influenced while high friction force is ensured.

When the push rod pressing device is used, a proper position can be found in threaded holes at equal intervals in the workbench, the workbench is constrained on the workbench, the movable stop block capable of rotating and the rotary handle move in the handle sliding groove, the rotary handle can be guaranteed to move in all ranges of the inner ring of the annular pressing block, the rotary handle can find corresponding threaded holes in the workbench in a large range, and the threaded holes in the bottom of the rotary handle are connected with the threaded holes in the workbench through the threaded sections in the bottom of the rotary handle. The rubber pad on the restraint head is adhered with the sliding restraint head and is reliably bound by the string to form the sliding restraint head assembly. The sliding restraint head assembly is inserted into the restraint head main support, the inner side of the restraint head main support is provided with a limiting step, the sliding restraint head assembly can be restrained at the position shown in figure 4, at the moment, the rubber pad protrudes out of the surface A211 for a certain position, a certain deformation amount is ensured when the rubber pad is pre-pressed in the future, and a certain friction force is generated; placing a spring in a cavity on the other side of the sliding restraint head assembly; inserting the push block into the inner side of the main support of the restraint head, accommodating the compression spring into a cavity on one side of the main support, screwing the rotary propulsion handle into the restraint block of the handle through the first thread section, screwing the limit nut into the second thread section of the rotary propulsion handle, and completely fixing the limit nut at the root of the second thread section to form a rotary propulsion handle assembly; the rotary push handle assembly is inserted into the restraint head main support, and the handle restraint block and the restraint head main support are fixed through 2M 3 cylindrical head screws.

Example 3

As shown in fig. 5 and 6, a positioning assembly of this embodiment includes the push rod pressing device of embodiment 1 or embodiment 2, and further includes an angle gauge 3, a guide pin 31 is provided at the bottom of the angle gauge 3, and a rubber strip 32 is provided on the inner side surface of the angle gauge 3. The rubber strip on the angle gauge can protect the load equipment and ensure certain friction force. The positioning can be carried out on the workbench by arranging the guide pin columns on the angle gauge.

As shown in fig. 5 and 6, in a preferred embodiment of the present invention, a plurality of through grooves with a through top and a closed bottom are formed on an inner side surface of the angle gauge 3, a rubber strip 32 is embedded in the through grooves, and a pressing block 33 for pressing the rubber strip 32 is fixed on the top of the angle gauge 3. The pressing block can be adopted to compress and fix the rubber strip in the through groove, and the rubber strip is favorably compressed and fixed. The through groove can adopt a semi-cylindrical through groove, the size of the opening of the through groove of the semi-cylindrical is smaller than half of the perimeter, and the rubber strip can be embedded in the through groove to prevent the rubber strip from being separated from the through groove. Specifically, 4 or 5 rubber strips can be respectively arranged on two right-angle edges of the angle gauge 3.

Specifically, the guide pin column 31 on the angle gauge 3 is integrally processed, and two M5 loose-free screws are arranged on the angle gauge 3, so that the angle gauge can be in threaded connection with the operation table 4. The angle gauge 3 also has two right angle binding edges.

When the positioning assembly of the embodiment is used, an angle gauge and a push rod pressing device can be adopted to be matched for use, for example, a cubic load device can be adopted, and one angle gauge and at least two push rod pressing devices can be adopted to be matched for use; the angle gauges and the push rod pressing devices with different numbers can be adopted for equipment with other shapes according to requirements. The angle gauge can be fixed on the workbench in advance, the load equipment is placed close to the angle gauge in a constrained mode, then the push rod pressing device with pretightening force and capable of adjusting the installation position is used for close to the load equipment, the workbench movable constraint seat provides the pretightening force for the load equipment, and the rubber pad on the constraint head and the load equipment generate friction force to guarantee constraint fixation of the load equipment.

The locating component of this embodiment uses through cooperating angle gauge and push rod closing device, and push rod closing device can carry out reliable and stable uniformity fixed mode to load equipment, does not receive the influence of operating personnel difference.

Example 4

As shown in fig. 7 and 8, a positioning device of the present embodiment includes a push rod pressing device according to embodiment 1 or embodiment 2; the device further comprises an operation platform 4, and threaded holes 41 which are arranged in an array are formed in the operation platform 4. The threaded holes 41 on the work table 4 are arranged at equal intervals. The back of the work table 4 is provided with lightening slots 43, and the front of the work table 4 can be provided with accommodating slots 44 for accommodating relevant components on the load device 6 according to the load device 6 to be mounted. For example, when the load device 6 is an SDU, a front panel receiving slot may be provided in the front of the table 4 to receive and retract the bottom structure of the SDU.

The positioning device of this embodiment can a plurality of push rod closing devices of exclusive use, and it is fixed with the screw hole of array arrangement on a plurality of push rod closing devices and the workstation locking, retrains the location to load equipment.

Example 5

As shown in fig. 7 and 8, a positioning device of the present embodiment includes the positioning assembly described in embodiment 3; the device also comprises an operation platform 4, wherein threaded holes 41 which are arranged in an array are formed in the operation platform 4; or the workbench 4 is provided with both the threaded holes 41 arranged in an array and two rows of guide pin holes 42, that is, two parallel dotted lines in fig. 7 are the tracks of the guide pin holes 42. The threaded holes 41 on the work table 4 are arranged at equal intervals. The back of the work table 4 is provided with lightening slots 43, and the front of the work table 4 can be provided with accommodating slots 44 for accommodating relevant components on the load device 6 according to the load device 6 to be mounted. For example, when the load device 6 is an SDU, a front panel receiving slot may be provided in the front of the table 4 to receive and retract the bottom structure of the SDU.

When the workbench 4 and the angle gauge 3 are used in a matched mode, the guide pin columns 3 on the angle gauge are placed in the guide pin holes 42 of the workbench 4, the angle gauge is installed and fixed in the threaded hole 41 of the workbench 4 through two release screws, then the load equipment 6 is placed, the load equipment 6 is made to abut against the rubber strips on two sides of the angle gauge, and the rubber strips are mainly arranged to protect the load equipment and ensure friction.

The positioning device of the embodiment can be used by matching the angle gauge with the push rod pressing device, can fix the angle gauge on the workbench in advance, places load equipment close to the angle gauge in a constrained mode, and then positions the load equipment in a constrained mode by the push rod pressing device. When the angle gauge is fixed by matching the guide pin columns with the guide pin holes, after the load equipment is restrained and positioned by the push rod pressing device, the restrained load has higher positioning accuracy, and the load equipment can be operated by a mechanical arm (the mechanical arm has higher requirement on the positioning accuracy of the load equipment) in the state; if the angle gauge is not provided with the guide pin column, the angle gauge is not fixed through the guide pin hole, the load equipment cannot be operated through the mechanical arm at the moment, and only the astronaut can directly and manually operate the load equipment.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.