CN113276044B - Flexible positioning device and positioning method for thyristor silicon stack - Google Patents
Flexible positioning device and positioning method for thyristor silicon stack Download PDFInfo
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- CN113276044B CN113276044B CN202110609313.7A CN202110609313A CN113276044B CN 113276044 B CN113276044 B CN 113276044B CN 202110609313 A CN202110609313 A CN 202110609313A CN 113276044 B CN113276044 B CN 113276044B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
Abstract
The invention discloses a flexible positioning device and a positioning method for a thyristor silicon stack, wherein the thyristor silicon stack comprises a left press-mounting block, a right press-mounting block and a radiator; the first cross beam, the second cross beam, the third cross beam and the fourth cross beam are respectively connected to the base in a sliding manner; the first clamping device is connected to the first cross beam and is suitable for clamping the left press-fitting block and positioning the longitudinal position of the left press-fitting block; the second clamping device is connected to the second cross beam and is suitable for clamping the right press-fitting block and positioning the longitudinal position of the right press-fitting block; and the third clamping device is connected to the third cross beam and is suitable for clamping the radiator and positioning the longitudinal position of the radiator. The invention can improve the longitudinal position precision of the left press mounting block, the right press mounting block and the radiator, and can prevent the radiator from colliding and damaging with the upper pull ring.
Description
Technical Field
The invention relates to a flexible positioning device and a positioning method for a thyristor silicon stack.
Background
At present, a thyristor silicon stack is one of important components of a converter valve, and comprises a left press-mounting block, a right press-mounting block, a spring assembly, a radiator, an upper pull ring and a lower pull ring; the upper end of the radiator is provided with a bulge part due to the requirement of structural design, the bulge part extends into the inner side of the upper pull ring, and the gap between the bulge part and the upper pull ring is very small. In the production process of the thyristor silicon stack, the left press-mounting block, the spring assembly, the radiator and the right press-mounting block are required to be arranged in sequence along the transverse direction, and then the left press-mounting block, the spring assembly, the radiator and the right press-mounting block are pressed and pressed along the transverse direction by high-load pressing force. However, in the press-fitting process, the longitudinal position of each device is not accurately positioned, so that the heat radiator is longitudinally deviated, the protruding part at the upper end of the heat radiator is collided with the upper pull ring, the surfaces of the upper pull ring and the protruding part of the heat radiator are collided, and even the electric test is failed. It is therefore necessary to accurately position the longitudinal position of each device during press-fitting.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a flexible positioning device for a thyristor silicon stack, which can improve the position precision of each device in the thyristor silicon stack in the longitudinal direction and prevent each device from being collided and damaged.
In order to solve the technical problems, the technical scheme of the invention is as follows: a flexible positioning device for a thyristor silicon stack comprising:
a base;
the cross beams are connected to the base in a transverse sliding mode;
a plurality of clamping devices connected to the corresponding beams and adapted to clamp corresponding devices in the thyristor silicon stack and to locate the longitudinal position of the clamped devices;
at least one bracket connected to the corresponding beam and adapted to hold a device in the thyristor silicon stack and to locate the longitudinal position of the held device.
Further, the thyristor silicon stack comprises a left press-mounting block, a right press-mounting block, a spring assembly and at least one radiator, wherein the left press-mounting block, the spring assembly, the radiator and the right press-mounting block are sequentially arranged along the transverse direction;
the cross beams comprise at least one first cross beam, at least one second cross beam, at least one third cross beam and at least one fourth cross beam;
said brackets being connected to respective fourth cross members and adapted to carry said spring assemblies and to define the longitudinal position of said spring assemblies;
the clamping device comprises a first clamping device, a second clamping device and a third clamping device; wherein the content of the first and second substances,
the first clamping device is connected to the first cross beam and is suitable for clamping the left press-fitting block and positioning the longitudinal position of the left press-fitting block;
the second clamping device is connected to the second cross beam and is suitable for clamping the right press-fitting block and positioning the longitudinal position of the right press-fitting block;
the third clamping device is connected to the third cross beam and is adapted to clamp the radiator and to position the longitudinal position of the radiator.
Further, the thyristor silicon stack further comprises a lower pull ring;
the pull-down ring is adapted to bear on at least one of the first, second, third and fourth beams.
Further provides a concrete structure of the first clamping device, the second clamping device and the third clamping device,
the first clamping device comprises a first positioning baffle and a first pressing assembly; wherein the content of the first and second substances,
the first positioning baffle is connected to the first cross beam and is suitable for abutting against the left press-mounting block so as to position the longitudinal position of the left press-mounting block;
the first pressing assembly is connected to the first cross beam and is suitable for pressing the left pressing block on the first positioning baffle;
and/or the second clamping device comprises a second positioning baffle and a second pressing component; wherein the content of the first and second substances,
the second positioning baffle is connected to the second cross beam and is suitable for abutting against the right press-fitting block so as to position the longitudinal position of the right press-fitting block;
the second pressing assembly is connected to the second cross beam and is suitable for pressing the right pressing block on the second positioning baffle;
and/or the third clamping device comprises a limiting strip and a third pressing component; wherein the content of the first and second substances,
the limiting strip is connected to the third cross beam and is suitable for abutting against the radiator to position the longitudinal position of the radiator;
the third pressing assembly is connected to the third cross beam and is suitable for pressing the radiator on the limiting strips.
Further provides a specific structure of the first pressing component and the second pressing component,
the first compression assembly comprises:
the first mounting seat is connected to the first cross beam;
the first pressure rod is in threaded connection with the first mounting seat and is suitable for being screwed to be abutted against the left press-fitting block so as to press the left press-fitting block on the first positioning baffle;
the second compression assembly comprises:
the second mounting seat is connected to the second cross beam;
and the second pressure lever is in threaded connection with the second mounting seat and is suitable for being screwed to a second pressure lever which is abutted against the right pressure fitting block so as to press the right pressure fitting block on the second positioning baffle.
The specific structure of the third pressing assembly is further provided, at least two third cross beams are arranged, the third cross beams are connected with connecting plates, and the limiting strips are connected to the connecting plates;
the third pressing assembly comprises pressing strips and quick clamps which correspond to the third cross beams one to one;
the quick clamps are connected to the corresponding third cross beams, and the pressing strips are connected to the quick clamps so that the quick clamps can be driven to move to press the radiator on the limiting strips.
Further provides a concrete structure of the bracket, wherein the bracket comprises a transverse supporting rod and a longitudinal supporting rod; wherein the content of the first and second substances,
the lower end parts of the longitudinal support rods are connected to the corresponding fourth cross beams;
the transverse supporting rod is connected to the upper end part of the longitudinal supporting rod and is suitable for supporting the cylindrical side wall of the spring assembly;
the transverse supporting rod is of an arc structure or a V-shaped structure matched with the cylindrical side wall of the spring assembly.
The invention also provides a positioning method of the flexible positioning device for the thyristor silicon stack, the thyristor silicon stack further comprises a lower pull ring, one end part of the lower pull ring is suitable for being connected to the lower end part of the left press-mounting block, and the other end part of the lower pull ring is suitable for being connected to the lower end part of the right press-mounting block; wherein the content of the first and second substances,
the method comprises the following steps:
s1: placing the pull-down ring on at least one of the first, second, third, and fourth beams;
s2: the left press-fitting block, the right press-fitting block and the radiator are mounted on the lower pull ring, the spring assembly is mounted on the bracket, the first clamping device is operated to clamp the left press-fitting block and position the longitudinal position of the left press-fitting block, the second clamping device is operated to clamp the right press-fitting block and position the longitudinal position of the right press-fitting block, and the third clamping device is operated to clamp the radiator and position the longitudinal position of the radiator.
Further, the specific steps of step S2 are:
installing the left press-fitting block on the lower pull ring and abutting against the first positioning baffle, installing the right press-fitting block on the lower pull ring and abutting against the second positioning baffle, installing the radiator on the lower pull ring and abutting against the limiting strip, installing the spring assembly on the bracket, and screwing the first pressure lever to tightly press the left press-fitting block on the first positioning baffle; screwing the second pressure rod to tightly press the right press-fitting block on the second positioning baffle; and actuating the quick clamp to drive the pressing strip to act so as to press the radiator on the limiting strip.
Further, the thyristor silicon stack further comprises an upper pull ring, one end of the upper pull ring is suitable for being connected to the upper end of the left press-mounting block, and the other end of the upper pull ring is suitable for being connected to the upper end of the right press-mounting block; the method comprises the following steps:
s0: respectively sliding the first beam, the second beam, the third beam and the fourth beam to proper positions;
s3: and one end part of the upper pull ring is arranged and connected at the upper end part of the left press-mounting block, and the other end part of the upper pull ring is arranged and connected at the upper end part of the right press-mounting block.
Furthermore, the upper end part of the left press-mounting block is provided with a left upper connecting part, and the lower end part of the left press-mounting block is provided with a left lower connecting part;
the upper end part of the right press-mounting block is provided with a right upper connecting part, and the upper end part of the right press-mounting block is provided with a right lower connecting part;
the left end part of the upper pull ring is suitable for being connected to the left upper connecting part, and the right end part of the upper pull ring is suitable for being connected to the right upper connecting part;
the left end part of the lower pull ring is suitable for being connected to the left lower connecting part, and the right end part of the lower pull ring is suitable for being connected to the right lower connecting part;
in step S2, the step of mounting the left press-fitting block on the lower tab includes:
placing the left press fitting block on the lower pull ring and enabling the left lower connecting part to extend into the left end part of the lower pull ring;
in step S2, the step of mounting the right press-fitting block on the pull-down ring includes:
placing the right press fitting block on the lower pull ring and enabling the right lower connecting part to extend into the right end part of the lower pull ring;
the specific steps of step S3 are:
and sleeving the left end part of the upper pull ring on the left upper connecting part, and sleeving the right end part of the upper pull ring on the right upper connecting part.
After the technical scheme is adopted, in the production process of the thyristor silicon stack, when the left press mounting block, the spring assembly, the radiator and the right press mounting block are transversely pressed through high-load pressing force, the spring assembly is pressed to generate elastic deformation, the left press mounting block, the spring assembly, the radiator and the right press mounting block can transversely generate displacement, the displacement of the left press mounting block is compensated through the first cross beam, the displacement of the right press mounting block is compensated through the second cross beam, the displacement of the radiator is compensated through the third cross beam, the displacement of the spring assembly is compensated through the fourth cross beam, and then the flexible positioning of the left press mounting block, the spring assembly, the radiator and the right press mounting block is realized. And, the last pull ring in the thyristor silicon stack is connected on left pressure equipment piece and right pressure equipment piece, and first clamping device has pinpointed the longitudinal position of left pressure equipment piece, and second clamping device has pinpointed the longitudinal position of right pressure equipment piece, and third clamping device has pinpointed the longitudinal position of radiator, and then can prevent that the bellying of radiator upper end from colliding with last pull ring because of vertical skew, and then has avoided the bellying of last pull ring and radiator to be collided with, has improved the quality, the reliability and the qualification rate of product, has reduced the trouble risk, reduces cost loss, guarantees that the electrical test passes.
Drawings
FIG. 1 is a schematic structural diagram of a flexible positioning device for a thyristor silicon stack according to the present invention;
fig. 2 is a schematic structural diagram of the front side of the flexible positioning device for the thyristor silicon stack of the invention;
fig. 3 is a schematic structural diagram of the back side of the flexible positioning device for the thyristor silicon stack of the invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example one
As shown in fig. 1 to 3, a flexible positioning device for a thyristor silicon stack comprises:
a base 5;
a plurality of cross beams which are connected on the base 5 in a transverse sliding mode;
a plurality of clamping devices connected to the corresponding beams and adapted to clamp corresponding devices in the thyristor silicon stack and to locate the longitudinal position of the clamped devices;
at least one bracket 10, the bracket 10 is connected on the corresponding beam and is suitable for supporting a certain device in the thyristor silicon stack and positioning the longitudinal position of the supported device; specifically, through clamping device with the position precision of each device in the thyristor silicon stack on vertical can be improved to the bracket, and then has prevented to take place to collide with and collide with the wound between each device, has improved the quality, reliability and the qualification rate of thyristor silicon stack, has reduced the fault risk, reduces cost loss, guarantees that electrical test passes through.
As shown in fig. 1 to 3, the thyristor silicon stack may include a left press-fitting block 1, a right press-fitting block 2, a spring assembly 3, and at least one heat sink 4, where the left press-fitting block 1, the spring assembly 3, the heat sink 4, and the right press-fitting block 2 may be arranged in sequence along a transverse direction;
the cross-beams may comprise at least one first cross-beam 6, at least one second cross-beam 7, at least one third cross-beam 8 and at least one fourth cross-beam 9;
said brackets 10 are connected to the respective fourth crosspiece 9 and are suitable for carrying said spring assemblies 3 and defining the longitudinal position of said spring assemblies 3;
the clamping means may comprise first, second and third clamping means; wherein the content of the first and second substances,
the first clamping device is connected to the first cross beam 6 and is suitable for clamping the left press-fitting block 1 and positioning the longitudinal position of the left press-fitting block 1;
the second clamping device is connected to the second cross beam 7 and is suitable for clamping the right press-fitting block 2 and positioning the longitudinal position of the right press-fitting block 2;
said third clamping means being connected to said third beam 8 and adapted to clamp said radiator 4 and to position the longitudinal position of said radiator 4; in the present embodiment, the brackets 10 correspond to the fourth cross beams 9 one to one; the transverse direction is vertical to the longitudinal direction, and the transverse direction and the longitudinal direction are both horizontally arranged. Specifically, in the production process of thyristor silicon stack, when transversely compressing tightly left pressure equipment piece 1, spring assembly 3, radiator 4 and right pressure equipment piece 2 through high load crimping power, spring assembly 3 pressurized produces elastic deformation, left side pressure equipment piece 1, spring assembly 3, radiator 4 and right pressure equipment piece 2 all can transversely take place the displacement along, the displacement of left side pressure equipment piece 1 compensates through first crossbeam 6, the displacement of right side pressure equipment piece 2 compensates through second crossbeam 7, the displacement of radiator 4 compensates through third crossbeam 8, the displacement of spring assembly 3 compensates through fourth crossbeam 9, and then has realized the flexible positioning of left pressure equipment piece 1, spring assembly 3, radiator 4 and right pressure equipment piece 2. And, the last pull ring 11 in the thyristor silicon stack is connected on left pressure equipment piece 1 and right pressure equipment piece 2, and first clamping device has pinpointed the longitudinal position of left pressure equipment piece 1, and the longitudinal position of right pressure equipment piece 2 has pinpointed to the second clamping device, and the longitudinal position of radiator 4 has pinpointed to the third clamping device, and then can prevent that bellying 12 of radiator 4 upper end from colliding with last pull ring 11 because of vertical skew, and then has avoided the bellying 12 of last pull ring 11 and radiator 4 to be collided with, has improved the quality, reliability and the qualification rate of product, has reduced the fault risk, reduces cost loss, guarantees that the electrical test passes through. In the present embodiment, the number of the heat sinks 4 is 8.
As shown in fig. 1 to 3, the thyristor silicon stack may further include a pull-down ring 13;
said lower tab 13 is adapted to bear on at least one of said first, second, third and fourth beams 6, 7, 8, 9;
the left press-mounting block 1, the right press-mounting block 2 and the radiator 4 are suitable for bearing on the lower pull ring 13; in this embodiment, two slide rails 28 are connected to the base 5, and the length direction of the slide rails 28 is set along the transverse direction; one end of the first beam 6, one end of the second beam 7, one end of the third beam 8, and one end of the fourth beam 9 are slidably connected to one of the slide rails 28, and the other end of the first beam 6, the other end of the second beam 7, the other end of the third beam 8, and the other end of the fourth beam 9 are slidably connected to the other slide rail 28.
1-3, the first clamping device is, for example and without limitation, a structure comprising a first positioning baffle 14 and a first hold-down assembly; wherein the content of the first and second substances,
the first positioning baffle 14 is connected to the first cross beam 6 and is suitable for abutting against the left press-fitting block 1 so as to position the longitudinal position of the left press-fitting block 1;
the first pressing assembly is connected to the first cross beam 6 and is suitable for pressing the left press-mounting block 1 on the first positioning baffle 14;
the second clamping device is, for example and without limitation, a structure comprising a second positioning baffle 15 and a second pressing assembly; wherein the content of the first and second substances,
the second positioning baffle 15 is connected to the second cross beam 7 and is suitable for abutting against the right press-fitting block 2 so as to position the longitudinal position of the right press-fitting block 2;
the second pressing assembly is connected to the second cross beam 7 and is suitable for pressing the right pressing block 2 on the second positioning baffle 15;
the third clamping device is, for example and without limitation, a structure comprising a spacing bar 16 and a third pressing assembly; wherein the content of the first and second substances,
the limiting strip 16 is connected to the third cross beam 8 and is suitable for abutting against the radiator 4 to position the longitudinal position of the radiator 4;
the third pressing assembly is connected to the third beam 8 and is adapted to press the heat sink 4 against the position-limiting strips 16.
As shown in fig. 1-3, the first pressing assembly includes, for example but not limited to, the following structure:
a first mounting seat 17 connected to the first cross beam 6;
a first pressure rod 18 which is screwed on the first mounting seat 17 and is suitable for being screwed to abut against the left press-fitting block 1 so as to press the left press-fitting block 1 on the first positioning baffle 14;
the second compression assembly, such as but not limited to the following, includes:
a second mounting base 19 connected to the second cross member 7;
and a second pressure rod 20 which is screwed on the second mounting seat 19 and is suitable for being screwed to be abutted against the right press-fitting block 2 so as to press the right press-fitting block 2 on the second positioning baffle 15.
As shown in fig. 1 to 3, at least two third beams 8 may be provided, a connecting plate 21 is connected to the third beams 8, and the limiting strips 16 are connected to the connecting plate 21;
the third pressing assembly is, for example and without limitation, a structure comprising a pressing strip 22 and quick clamps 23 corresponding to the third cross beam 8 one by one;
the quick clamp 23 is connected to the corresponding third beam 8, and the pressing strip 22 is connected to the quick clamp 23, so that the quick clamp 23 is actuated to drive the pressing strip 22 to act to press the heat sink 4 against the limiting strip 16; specifically, the quick clamp 23 may be, but is not limited to, a vertical clamp or a push-pull clamp, and the specific structures of the vertical clamp and the push-pull clamp are well known in the art, and are not described in detail in this embodiment.
As shown in FIGS. 1-3, the bracket 10 is constructed, for example and without limitation, by including a transverse bracket bar 24 and a longitudinal bracket bar 25; wherein the content of the first and second substances,
the lower end parts of the longitudinal support rods 25 are connected to the corresponding fourth cross beams 9;
the transverse supporting rod 24 is connected to the upper end part of the longitudinal supporting rod 25 and is suitable for supporting the cylindrical side wall of the spring assembly 3;
the transverse supporting rod 24 is of an arc structure or a V-shaped structure matched with the cylindrical side wall of the spring component 3; in this embodiment, the transverse supporting rod 24 may be an arc structure, and the longitudinal position of the spring assembly 3 can be located through the arc structure; in this embodiment, there is one each of the first beam 6 and the second beam 7; 3 third cross beams 8 are provided, and 3 fast clamps 23 are correspondingly provided; the number of the fourth cross beams 9 is two, and the number of the brackets 10 is also 2 correspondingly.
Example two
As shown in fig. 1 to 3, in a positioning method of a flexible positioning device for a thyristor silicon stack according to the first embodiment, the thyristor silicon stack further includes a lower pull ring 13, one end of the lower pull ring 13 is adapted to be connected to a lower end of the left press-fitting block 1, and the other end of the lower pull ring 13 is adapted to be connected to a lower end of the right press-fitting block 2; wherein the content of the first and second substances,
the method comprises the following steps:
s1: placing the lower tab 13 on at least one of the first beam 6, second beam 7, third beam 8 and fourth beam 9;
s2: the left press-fitting block 1, the right press-fitting block 2 and the radiator 4 are mounted on the lower pull ring 13, the spring assembly 3 is mounted on the bracket 10, the first clamping device is operated to clamp the left press-fitting block 1 and position the longitudinal position of the left press-fitting block 1, the second clamping device is operated to clamp the right press-fitting block 2 and position the longitudinal position of the right press-fitting block 2, and the third clamping device is operated to clamp the radiator 4 and position the longitudinal position of the radiator 4, so that the longitudinal position accuracy of the left press-fitting block 1, the right press-fitting block 2 and the radiator 4 is ensured. In this embodiment, the first beam 6, the second beam 7, the third beam 8, and the fourth beam 9 are all located at the same height, and the lower pull ring 13 is simultaneously borne on the first beam 6, the second beam 7, the third beam 8, and the fourth beam 9.
Specifically, the step S2 includes the following steps:
mounting the left press-fitting block 1 on the lower pull ring 13 and abutting against the first positioning baffle 14, mounting the right press-fitting block 2 on the lower pull ring 13 and abutting against the second positioning baffle 15, mounting the radiator 4 on the lower pull ring 13 and abutting against the limiting strip 16, mounting the spring assembly 3 on the bracket 10, and screwing the first pressure lever 18 to press the left press-fitting block 1 on the first positioning baffle 14; screwing the second pressing rod 20 to press the right press fitting block 2 on the second positioning baffle 15; and actuating the quick clamp 23 to drive the pressing strip 22 to move so as to press the radiator 4 on the limiting strip 16.
In this embodiment, the thyristor silicon stack further includes an upper pull ring 11, one end of the upper pull ring 11 is adapted to be connected to the upper end of the left press-fitting block 1, and the other end of the upper pull ring 11 is adapted to be connected to the upper end of the right press-fitting block 2; the method comprises the following steps:
s0: respectively sliding the first beam 6, the second beam 7, the third beam 8 and the fourth beam 9 to proper positions;
s3: and one end part of the upper pull ring 11 is arranged and connected at the upper end part of the left press fitting block 1, and the other end part of the upper pull ring 11 is arranged and connected at the upper end part of the right press fitting block 2.
More specifically, the upper end part of the left press-mounting block 1 is provided with a left upper connecting part 26, and the lower end part of the left press-mounting block 1 is provided with a left lower connecting part;
the upper end part of the right press-mounting block 2 is provided with a right upper connecting part 27, and the upper end part of the right press-mounting block 2 is provided with a right lower connecting part;
the left end of the upper pull ring 11 is suitable for being connected to the left upper connecting part 26, and the right end of the upper pull ring 11 is suitable for being connected to the right upper connecting part 27;
the left end of the lower pull ring 13 is suitable for being connected to the left lower connecting part, and the right end of the lower pull ring 13 is suitable for being connected to the right lower connecting part;
in step S2, the specific steps of mounting the left press-fitting block 1 on the lower tab 13 are as follows:
placing the left press fitting block 1 on the lower pull ring 13 and making the left lower connecting part extend into the left end part of the lower pull ring 13;
in step S2, the specific steps of mounting the right press-fitting block 2 on the lower tab 13 are as follows:
placing the right press fitting block 2 on the lower pull ring 13 and making the right lower connecting part extend into the right end part of the lower pull ring 13;
the specific steps of step S3 are:
the left end of the upper tab 11 is fitted to the left upper connecting portion 26, and the right end of the upper tab 11 is fitted to the right upper connecting portion 27. In this embodiment, after the left press-fitting block 1, the spring assembly 3, the radiator 4 and the right press-fitting block 2 are positioned, the left press-fitting block 1, the spring assembly 3, the radiator 4 and the right press-fitting block 2 need to be press-fitted, during the press-fitting process, a right pressure needs to be applied to the left press-fitting block 1, a left pressure needs to be applied to the right press-fitting block 2, and then the left press-fitting block 1, the spring assembly 3, the radiator 4 and the right press-fitting block 2 are transversely pressed; in the process, the spring assembly 3 is pressed to generate elastic deformation, the left press fitting block 1, the spring assembly 3, the radiator 4 and the right press fitting block 2 can transversely displace, the displacement of the left press fitting block 1 is compensated through the first cross beam 6, the displacement of the right press fitting block 2 is compensated through the second cross beam 7, the displacement of the radiator 4 is compensated through the third cross beam 8, the displacement of the spring assembly 3 is compensated through the fourth cross beam 9, and therefore flexible positioning of the left press fitting block 1, the spring assembly 3, the radiator 4 and the right press fitting block 2 is achieved. And, the last pull ring 11 in the thyristor silicon stack is connected on left pressure equipment piece 1 and right pressure equipment piece 2, and first clamping device has pinpointed the longitudinal position of left pressure equipment piece 1, and the longitudinal position of right pressure equipment piece 2 has pinpointed to the second clamping device, and the longitudinal position of radiator 4 has pinpointed to the third clamping device, and then can prevent that bellying 12 of radiator 4 upper end from colliding with last pull ring 11 because of vertical skew, and then has avoided the bellying 12 of last pull ring 11 and radiator 4 to be collided with, has improved the quality, reliability and the qualification rate of product, has reduced the fault risk. Further specifically, the step of press-fitting the left press-fitting block 1, the spring assembly 3, the heat sink 4, and the right press-fitting block 2 is well known in the prior art, and is not described in detail in this embodiment.
The working principle of the invention is as follows:
in the production process of thyristor silicon stack, when transversely compressing tightly left pressure equipment piece 1, spring assembly 3, radiator 4 and right pressure equipment piece 2 through high load crimping power, spring assembly 3 pressurized produces elastic deformation, left side pressure equipment piece 1, spring assembly 3, radiator 4 and right pressure equipment piece 2 all can be followed transversely and take place the displacement, the displacement of left side pressure equipment piece 1 compensates through first crossbeam 6, the displacement of right pressure equipment piece 2 compensates through second crossbeam 7, the displacement of radiator 4 compensates through third crossbeam 8, the displacement of spring assembly 3 compensates through fourth crossbeam 9, and then has realized the flexible positioning of left pressure equipment piece 1, spring assembly 3, radiator 4 and right pressure equipment piece 2. And, the upper pull ring 11 in the thyristor silicon stack is connected on the left press mounting block 1 and the right press mounting block 2, the first clamping device accurately positions the longitudinal position of the left press mounting block 1, the second clamping device accurately positions the longitudinal position of the right press mounting block 2, the third clamping device accurately positions the longitudinal position of the radiator 4, and then the boss 12 at the upper end of the radiator 4 can be prevented from colliding with the upper pull ring 11 due to longitudinal deviation, so that the upper pull ring 11 and the boss 12 of the radiator 4 are prevented from being collided, the quality, reliability and qualification rate of products are improved, the fault risk is reduced, the cost loss is reduced, and the electrical test is guaranteed to pass.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
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; either directly or indirectly through intervening media, either internally or in any other relationship. 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 description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A flexible positioning device for thyristor silicon stacks, characterized in that it comprises a base (5), a plurality of beams, a plurality of clamping means and at least one carriage (10);
the cross beam is connected to the base (5) in a transverse sliding mode;
the clamping devices are connected to the corresponding cross beams and are suitable for clamping corresponding devices in the thyristor silicon stack and positioning the longitudinal positions of the clamped devices;
the bracket (10) is connected to the corresponding beam and is suitable for supporting a certain device in the thyristor silicon stack and positioning the longitudinal position of the supported device;
the thyristor silicon stack comprises a left press-mounting block (1), a right press-mounting block (2), a spring assembly (3) and at least one radiator (4), wherein the left press-mounting block (1), the spring assembly (3), the radiator (4) and the right press-mounting block (2) are sequentially arranged along the transverse direction;
the cross beams comprise at least one first cross beam (6), at least one second cross beam (7), at least one third cross beam (8) and at least one fourth cross beam (9);
the brackets (10) are connected to the respective fourth cross-member (9) and are adapted to carry the spring assembly (3) and to define the longitudinal position of the spring assembly (3);
the clamping device comprises a first clamping device, a second clamping device and a third clamping device;
the first clamping device is connected to the first cross beam (6) and is suitable for clamping the left press fitting block (1) and positioning the longitudinal position of the left press fitting block (1);
the second clamping device is connected to the second cross beam (7) and is suitable for clamping the right press fitting block (2) and positioning the longitudinal position of the right press fitting block (2);
the third clamping means are connected to the third cross member (8) and adapted to clamp the radiator (4) and to position the longitudinal position of the radiator (4).
2. Flexible positioning device for a thyristor silicon stack according to claim 1,
the thyristor silicon stack further comprises a lower pull ring (13);
the lower tab (13) is adapted to bear on at least one of the first beam (6), the second beam (7), the third beam (8) and the fourth beam (9).
3. Flexible positioning device for a thyristor silicon stack according to claim 1,
the first clamping device comprises a first positioning baffle (14) and a first pressing assembly; wherein the content of the first and second substances,
the first positioning baffle (14) is connected to the first cross beam (6) and is suitable for abutting against the left press-fitting block (1) so as to position the longitudinal position of the left press-fitting block (1);
the first pressing assembly is connected to the first cross beam (6) and is suitable for pressing the left pressing block (1) on the first positioning baffle (14);
and/or the second clamping device comprises a second positioning baffle (15) and a second pressing component; wherein the content of the first and second substances,
the second positioning baffle (15) is connected to the second cross beam (7) and is suitable for abutting against the right press-fitting block (2) so as to position the longitudinal position of the right press-fitting block (2);
the second pressing assembly is connected to the second cross beam (7) and is suitable for pressing the right pressing block (2) on the second positioning baffle (15);
and/or the third clamping device comprises a limiting strip (16) and a third pressing component; wherein the content of the first and second substances,
the limiting strip (16) is connected to the third cross beam (8) and is suitable for abutting against the radiator (4) so as to position the longitudinal position of the radiator (4);
the third pressing component is connected to the third cross beam (8) and is suitable for pressing the radiator (4) on the limiting strip (16).
4. Flexible positioning device for a thyristor silicon stack according to claim 3,
the first compression assembly comprises:
a first mounting seat (17) connected to the first cross beam (6);
the first pressing rod (18) is in threaded connection with the first mounting seat (17) and is suitable for being screwed to abut against the left pressing block (1) so as to press the left pressing block (1) on the first positioning baffle (14);
the second compression assembly comprises:
a second mounting seat (19) connected to the second cross beam (7);
and the second pressing rod (20) is in threaded connection with the second mounting seat (19) and is suitable for being screwed to the second pressing rod (20) which is abutted against the right pressing block (2) so as to press the right pressing block (2) on the second positioning baffle (15).
5. Flexible positioning device for a thyristor silicon stack according to claim 3,
at least two third cross beams (8) are arranged, connecting plates (21) are connected to the third cross beams (8), and the limiting strips (16) are connected to the connecting plates (21);
the third pressing assembly comprises pressing strips (22) and quick clamps (23) which correspond to the third cross beams (8) one by one;
the quick clamp (23) is connected to the corresponding third cross beam (8), and the pressing strip (22) is connected to the quick clamp (23) so that the quick clamp (23) can be actuated to drive the pressing strip (22) to act to press the radiator (4) on the limiting strip (16).
6. The flexible positioning device for thyristor silicon stacks according to claim 1, wherein the carrier (10) comprises a transverse strut (24) and a longitudinal strut (25); wherein the content of the first and second substances,
the lower end parts of the longitudinal support rods (25) are connected to the corresponding fourth cross beams (9);
the transverse supporting rod (24) is connected to the upper end part of the longitudinal supporting rod (25) and is suitable for supporting the cylindrical side wall of the spring assembly (3);
the transverse supporting rod (24) is of an arc structure or a V-shaped structure matched with the cylindrical side wall of the spring assembly (3).
7. The method for positioning the flexible positioning device of the thyristor silicon stack as claimed in any one of claims 1 to 5, wherein the thyristor silicon stack further comprises a lower pull ring (13), one end of the lower pull ring (13) is suitable for being connected to the lower end of the left press-mounting block (1), and the other end of the lower pull ring (13) is suitable for being connected to the lower end of the right press-mounting block (2); wherein the content of the first and second substances,
the method comprises the following steps:
s1: placing the lower tab (13) on at least one of the first beam (6), second beam (7), third beam (8) and fourth beam (9);
s2: installing the left press fitting block (1), the right press fitting block (2) and the radiator (4) on the lower pull ring (13), installing the spring assembly (3) on the bracket (10), operating the first clamping device to clamp the left press fitting block (1) and locate the longitudinal position of the left press fitting block (1), operating the second clamping device to clamp the right press fitting block (2) and locate the longitudinal position of the right press fitting block (2), and operating the third clamping device to clamp the radiator (4) and locate the longitudinal position of the radiator (4).
8. The positioning method according to claim 7,
the first clamping device comprises a first positioning baffle (14), a first mounting seat (17) and a first pressure rod (18); wherein, the first and the second end of the pipe are connected with each other,
the first positioning baffle (14) is connected to the first cross beam (6) and is suitable for abutting against the left press-fitting block (1) so as to position the longitudinal position of the left press-fitting block (1);
the first mounting seat (17) is connected to the first cross beam (6);
the first pressure rod (18) is in threaded connection with the first mounting seat (17) and is suitable for being screwed to abut against the left press-fitting block (1) so as to press the left press-fitting block (1) on the first positioning baffle (14);
the second clamping device comprises a second positioning baffle (15), a second mounting seat (19) and a second pressure rod (20); wherein the content of the first and second substances,
the second positioning baffle (15) is connected to the second cross beam (7) and is suitable for abutting against the right press-fitting block (2) so as to position the longitudinal position of the right press-fitting block (2);
the second mounting seat (19) is connected to the second cross beam (7);
the second pressure rod (20) is in threaded connection with the second mounting seat (19) and is suitable for being screwed to abut against the right press-fitting block (2) so as to press the right press-fitting block (2) on the second positioning baffle (15);
the third clamping device comprises a limiting strip (16), a quick clamp (23) and a pressing strip (22); wherein the content of the first and second substances,
the limiting strip (16) is connected to the third cross beam (8) and is suitable for abutting against the radiator (4) so as to position the longitudinal position of the radiator (4);
the quick clamp (23) is connected to the third cross beam (8), and the pressing strip (22) is connected to the quick clamp (23) so that the quick clamp (23) is actuated to drive the pressing strip (22) to act to press the radiator (4) on the limiting strip (16);
the specific steps of step S2 are:
mounting the left press-fitting block (1) on the lower pull ring (13) and abutting against the first positioning baffle (14), mounting the right press-fitting block (2) on the lower pull ring (13) and abutting against the second positioning baffle (15), mounting the radiator (4) on the lower pull ring (13) and abutting against the limiting strip (16), mounting the spring assembly (3) on the bracket (10), and screwing the first pressure lever (18) to press the left press-fitting block (1) on the first positioning baffle (14); screwing the second pressure rod (20) to press the right press-fitting block (2) on the second positioning baffle (15); and actuating the quick clamp (23) to drive the pressing strip (22) to act so as to press the radiator (4) on the limiting strip (16).
9. The positioning method according to claim 7, wherein the thyristor silicon stack further comprises an upper pull ring (11), one end of the upper pull ring (11) is suitable for being connected to the upper end of the left press block (1), and the other end of the upper pull ring (11) is suitable for being connected to the upper end of the right press block (2); the method comprises the following steps:
s0: respectively sliding the first beam (6), the second beam (7), the third beam (8) and the fourth beam (9) to proper positions;
s3: one end part of the upper pull ring (11) is arranged and connected at the upper end part of the left press fitting block (1), and the other end part of the upper pull ring (11) is arranged and connected at the upper end part of the right press fitting block (2).
10. The positioning method according to claim 9,
the upper end part of the left press-mounting block (1) is provided with a left upper connecting part (26), and the lower end part of the left press-mounting block (1) is provided with a left lower connecting part;
the upper end part of the right press-mounting block (2) is provided with a right upper connecting part (27), and the upper end part of the right press-mounting block (2) is provided with a right lower connecting part;
the left end part of the upper pull ring (11) is suitable for being connected to the left upper connecting part (26), and the right end part of the upper pull ring (11) is suitable for being connected to the right upper connecting part (27);
the left end part of the lower pull ring (13) is suitable for being connected to the left lower connecting part, and the right end part of the lower pull ring (13) is suitable for being connected to the right lower connecting part;
the step S2 of mounting the left press fitting block (1) on the lower pull ring (13) comprises the following specific steps:
placing the left press fitting block (1) on the lower pull ring (13) and making the left lower connecting part extend into the left end part of the lower pull ring (13);
the step S2 of mounting the right press-fitting block (2) on the lower pull ring (13) comprises the following specific steps:
placing the right press fitting block (2) on the lower pull ring (13) and making the right lower connecting part extend into the right end part of the lower pull ring (13);
the specific steps of step S3 are:
and sleeving the left end part of the upper pull ring (11) on the left upper connecting part (26), and sleeving the right end part of the upper pull ring (11) on the right upper connecting part (27).
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| CN202110609313.7A CN113276044B (en) | 2021-06-01 | 2021-06-01 | Flexible positioning device and positioning method for thyristor silicon stack |
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| CN202110609313.7A CN113276044B (en) | 2021-06-01 | 2021-06-01 | Flexible positioning device and positioning method for thyristor silicon stack |
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