Sheath fixing clamp and manufacturing method thereof

Abstract

The invention discloses a sheath fixing clamp and a manufacturing method thereof, and belongs to the technical field of hot isostatic pressing equipment, the sheath fixing clamp comprises a connecting assembly and at least two clamping sections, the clamping sections extend in an arc shape, the multiple clamping sections are connected end to end to jointly define a circular clamping space, and a sheath is clamped in the clamping space; the ends of every two adjacent clamping sections are detachably connected through a connecting assembly, and the connecting assemblies can adjust the distance between the two ends, close to each other, of every two adjacent clamping sections so as to change the extrusion force of the clamping sections on the sheath, and therefore the roundness of the sheath is adjusted. The manufacturing method of the sheath fixing clamp is applied to the sheath fixing clamp. Through cooperation of the clamping sections and the connecting assemblies, multi-point and multi-direction simultaneous extrusion correction of the sheath can be achieved, the structure is simple, the cost is low, the correction effect is good, and high adaptability is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of hot isostatic pressing equipment, and in particular to a sheath fixing fixture and a manufacturing method thereof. Background Art

[0002] The cladding is a container used in hot isostatic pressing technology, usually made of metal or high temperature resistant materials. Its main function is to protect the green body from contamination from the external environment and provide a high temperature and high pressure sintering environment for the green body.

[0003] In the process of making the bag, welding technology is usually used to splice the sheets into a whole. For rectangular bags, deformation is relatively rare due to the regular shape of the material. However, the production of circular bags is more complicated. Generally, the sheet is first processed into a cylindrical shape through rolling technology, and then the interface is welded to form the bag. However, due to the limitation of the accuracy of the rolling equipment, most processing units find it difficult to achieve high-precision rolling. In addition, the sheet is thin during transportation and is very easy to deform, which often causes the bag to be processed into an elliptical shape, which brings great difficulties to the placement and sealing of the product.

[0004] Therefore, in the prior art, one method for making a cylindrical package is to use a U-shaped clamp for calibration, see Figure 1 This method is relatively quick, but when the U-clip is clamped, only one point falls on the bag. Therefore, for large bags, multiple U-clip clamps need to be clamped at the same time. Due to the large area of ​​the bag, the U-clip is stacked back and forth, resulting in the force points not being on the same horizontal line. In addition, the height of the U-clip is limited, and too many cannot be placed at the same time, which limits its application effect in the calibration of large bags. Another method is to use correction equipment for correction. The correction equipment usually consists of a set of hydraulic devices. For larger bags, larger equipment is required, which occupies a large area and has a higher cost. In addition, due to the characteristics of some metal materials, such as stainless steel, there will still be a certain rebound after the correction equipment is released. If welding operations or hoisting are performed at this time, the correction effect will be greatly reduced, and the U-clip will be needed to assist in slight correction again. Summary of the invention

[0005] The object of the present invention is to provide a sleeve fixing fixture and a manufacturing method thereof, so as to solve the technical problems existing in the prior art that the sleeve fixing fixture has high cost, poor correction effect and low adaptability.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] On the one hand, an embodiment of the present invention provides a sleeve fixing fixture, comprising:

[0008] At least two clamping sections, the clamping sections extending in an arc shape, a plurality of the clamping sections connected end to end to form a circular clamping space, and the sleeve is clamped in the clamping space;

[0009] A connecting component, through which the ends of two adjacent clamping segments are detachably connected, and the connecting component can adjust the distance between the two ends of the two adjacent clamping segments that are close to each other, so as to change the squeezing force of the clamping segments on the sheath, thereby adjusting the roundness of the sheath.

[0010] Preferably, the connecting assembly includes a fixed stop block, a limiting rod and a limiting block, and each of the outer walls of the clamping section near both ends is fixedly connected with a fixed stop block, and the limiting rod can be sequentially passed through the two fixed stops close to each other in two adjacent clamping sections, and each of the two ends of the limiting rod is sleeved with a limiting block, and the limiting block can move along the axial direction of the limiting rod to push the two fixed stops to move relative to each other, thereby adjusting the distance between the two ends of the two clamping sections.

[0011] Preferably, a positioning hole is provided on the fixed stopper, and in two adjacent clamping sections, the positioning holes of two fixed stoppers close to each other are coaxially arranged, and the limiting rod can be passed through the positioning hole.

[0012] Preferably, the limiting rod is a threaded rod, and the limiting block is threadably connected to the limiting rod.

[0013] Preferably, the fixed stopper is in the shape of a right triangle, and the right-angled side of the fixed stopper is directly opposite to the limiting block.

[0014] Preferably, the limiting rod is provided with scale values, and the scale values ​​extend along the axial direction of the limiting rod.

[0015] Preferably, the number of the clamping sections is greater than or equal to two and less than or equal to four.

[0016] Preferably, four clamping segments are provided, and the arc of each clamping segment is 90 degrees.

[0017] Preferably, a shock-absorbing pad is provided on the inner wall of the clamping section.

[0018] On the other hand, an embodiment of the present invention further provides a method for manufacturing a sleeve fixing fixture, which is applied to the above-mentioned sleeve fixing fixture, comprising:

[0019] Step 1: Cut the plate to be processed into a ring-shaped plate;

[0020] Step 2: cutting the annular plate into a plurality of arc-shaped extending clamping segments;

[0021] Step 3: Install the connection assembly at both ends of the clamping section;

[0022] Step 4: Connect the multiple clamping segments end to end in sequence through the connecting assembly to form the clamping space.

[0023] Beneficial effects of the present invention:

[0024] The sleeve fixing clamp proposed in the present invention is provided with at least two clamping sections extending in an arc shape, which are connected end to end and jointly enclose a circular clamping space, and can adapt to circular sleeves of different sizes, thereby improving the versatility and adaptability of the clamp. The distance between the two ends of adjacent clamping sections is adjusted by the connecting component, thereby changing the extrusion force of the clamping section on the sleeve, and realizing multi-point and multi-directional extrusion correction of the sleeve at the same time. It can be flexibly adjusted according to the size of the sleeve material, and can be flexibly transported after adjustment, without worrying about deformation again. It can be adjusted at any time during the production process, which is convenient and fast, and has high flexibility. Compared with the U-shaped clamp in the prior art that can only bear force at a single point and has a limited scope of application, the present clamp can clamp the sleeve in all directions, ensure that the overall force of the sleeve is uniform, avoid incomplete deformation correction caused by local uneven force, and realize precise adjustment of the roundness of the sleeve. The detachable connecting component allows the clamp to be easily disassembled and stored when not in use, saving space and facilitating management. In addition, the present invention only adds a detachable clamp outside the sleeve, which has a simple structure and low cost. It not only does not cause complex effects on the original structure and processing flow of the sleeve, but also provides an efficient and convenient correction method. When the sleeve needs to be moved to another place for welding, the clamp can move with the sleeve and be fixed at all times, avoiding tedious re-correction procedures, saving time and labor costs, and effectively ensuring the continuity and stability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the cooperation between the U-shaped clip and the bag sleeve in the prior art;

[0026] Figure 2 is a cross-sectional view of the matching between the sleeve fixing fixture and the sleeve provided in the first embodiment of the present invention;

[0027] Figure 3 is a top view of the sleeve fixing fixture provided in the first embodiment of the present invention;

[0028] Figure 4 is a side view of the sleeve fixing fixture provided in the first embodiment of the present invention;

[0029] Figure 5 is a schematic structural diagram of a clamping section provided in Embodiment 1 of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the cooperation between a partial clamping section and a fixed stop block provided in the first embodiment of the present invention.

[0031] In the figure:

[0032] 100, package;

[0033] 1. Clamping section; 10. Clamping space;

[0034] 2. Connecting assembly; 21. Fixed stop block; 22. Limit rod; 23. Limit block. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0039] Embodiment 1

[0040] The embodiment of the present invention provides a sleeve fixing fixture, which can achieve a clamping and correction effect on the sleeve.

[0041] See also Figures 1 to 6The sleeve fixing fixture provided by the embodiment of the present invention comprises a connecting component 2 and at least two clamping segments 1. The clamping segments 1 extend in an arc shape, and a plurality of clamping segments 1 are connected end to end to form a circular clamping space 10, in which the sleeve 100 is clamped; the ends of two adjacent clamping segments 1 are detachably connected by the connecting component 2, and the connecting component 2 can adjust the distance between the two ends of the adjacent clamping segments 1 that are close to each other, so as to change the squeezing force of the clamping segments 1 on the sleeve 100, thereby adjusting the roundness of the sleeve 100.

[0042] The sleeve fixing fixture proposed in the present invention is provided with at least two arc-shaped clamping sections 1, which are connected end to end to form a circular clamping space 10, and can adapt to circular sleeves 100 of different sizes, thereby improving the versatility and adaptability of the fixture. The distance between the two ends of the adjacent clamping sections 1 is adjusted by the connecting component 2, thereby changing the extrusion force of the clamping section 1 on the sleeve 100, and realizing the extrusion correction of the sleeve 100 at multiple points and multiple directions at the same time. It can be flexibly adjusted according to the size of the material of the sleeve 100, and can be flexibly transported after adjustment, without worrying about deformation again. It can be adjusted at any time during the production process, which is convenient and fast, and has high flexibility. Compared with the U-shaped clamp in the prior art that can only bear force at a single point and has a limited scope of application, the present fixture can clamp the sleeve 100 in all directions, ensure that the overall force of the sleeve 100 is uniform, avoid incomplete deformation correction caused by local uneven force, and realize precise adjustment of the roundness of the sleeve 100. The detachable connecting component 2 allows the fixture to be easily disassembled and stored when not in use, saving space and facilitating management. In addition, the present invention only adds a detachable clamp to the outside of the package 100, which has a simple structure and low cost. It not only does not cause complex effects on the original structure and processing flow of the package 100, but also provides an efficient and convenient correction method. When the package 100 needs to be moved to another place for welding, the clamp can move with the package 100 and be fixed at all times, avoiding tedious re-correction procedures, saving time and labor costs, and effectively ensuring the continuity and stability of production.

[0043] The specific structure of the sleeve fixing fixture is described below.

[0044] About the connection component 2. The connection component 2 includes a fixed stopper 21, a limiting rod 22 and a limiting block 23. A fixed stopper 21 is fixedly connected to the outer side wall of each clamping segment 1 near both ends. The limiting rod 22 can be sequentially passed through two fixed stops 21 close to each other in two adjacent clamping segments 1. A limiting block 23 is sleeved on each of the two ends of the limiting rod 22. The limiting block 23 can move along the axial direction of the limiting rod 22 to push the two fixed stops 21 to move relative to each other, thereby adjusting the distance between the two ends of the two clamping segments 1. During use, when it is necessary to further clamp the sleeve 100, one of the limit blocks 23 or both limit blocks 23 are driven to slide on the limit rod 22 along the corresponding fixed block 21, so that the limit rod 22 applies a thrust to the fixed block 21, driving one end of the clamping segment 1 fixedly connected to the fixed block 21 to move along the direction of the clamping segment 1 adjacent thereto, so that the gap between the ends of the two clamping segments 1 is reduced, that is, the inner diameter of the clamping space 10 is reduced, and the squeezing force of the inner wall of the clamping segment 1 on the sleeve 100 is enhanced, thereby achieving a further clamping effect of the sleeve 100. When it is necessary to loosen the clamping sleeve 100, the operation method is the same as the above process, and only the moving direction of the limit block 23 needs to be changed, which will not be described in detail here.

[0045] It is worth noting that the driving process of the limit block 23 can be driven by an electric device or manually by an operator, which is not limited here.

[0046] Specifically, a positioning hole is provided on the fixed block 21. In two adjacent clamping sections 1, the positioning holes of the two fixed blocks 21 close to each other are coaxially arranged, and the limiting rod 22 can be inserted into the positioning hole. The arrangement of the positioning hole provides a clear and accurate insertion position for the limiting rod 22, ensuring the installation accuracy and stability of the limiting rod 22 between the fixed blocks 21. The coaxially arranged positioning holes enable the limiting rod 22 to be smoothly inserted into the two fixed blocks 21 in sequence, avoiding the problems of structural instability and inaccurate adjustment caused by installation deviation.

[0047] When the limit block 23 moves to the target position on the limit rod 22, it is necessary to lock the limit block 23 to prevent the limit block 23 from being offset after the thrust on the limit block 23 is removed, so that the fixation of the fixed block 21 fails. Therefore, the limit rod 22 is a threaded rod, and the limit block 23 is threadedly connected to the limit rod 22. The threaded connection has good self-locking performance. After the limit block 23 is adjusted into place, even if the force on the limit block 23 is removed, the limit block 23 can be stably maintained in the current position under the action of the thread, and will not be displaced due to the reaction force of the fixed block 21 or external reasons, thereby improving stability. In addition, the threaded connection can provide fine displacement control, so that the operator only needs to screw the limit block 23 to accurately adjust the distance between adjacent clamping sections 1, thereby achieving high-precision adjustment of the roundness of the sleeve 100.

[0048] In other embodiments, the locking effect of the limit block 23 may also be achieved by means of latches, bolts, etc., which will not be elaborated here.

[0049] In order to further improve the high-precision adjustment of the roundness of the sleeve 100, a scale value is set on the limit rod 22, and the scale value extends along the axial direction of the limit rod 22. The existence of the scale value provides an intuitive and accurate adjustment reference for the operator. When adjusting the distance between the ends of adjacent clamping sections 1, the operator can accurately control the adjustment amount according to the scale value to achieve high-precision adjustment of the roundness of the sleeve 100.

[0050] In addition, the fixed block 21 is in the form of a right triangle, and the right angle side of the fixed block 21 is directly opposite to the limit block 23. The fixed block 21 in the form of a right triangle has a stable structure, can withstand a large extrusion force and friction force, and is not easily deformed. The right angle side is directly opposite to the limit block 23, which increases the contact area between the limit block 23 and the fixed block 21, making the force transmission more direct and effective.

[0051] Regarding the number of clamping segments 1. The number of clamping segments 1 is greater than or equal to two and less than or equal to four. This can prevent a single clamping segment 1 from failing to clamp and correct the package 100 in all directions, and can also prevent an excessive number of clamping segments 1 from increasing the structural complexity and manufacturing difficulty of the clamp, and also making the operation cumbersome.

[0052] In the present embodiment, four clamping segments 1 are provided, and the curvature of each clamping segment 1 is 90 degrees. Four clamping segments 1 with a curvature of 90 degrees can be combined into a complete circular clamping space 10, and 360-degree all-round clamping and correction of the cylindrical sleeve 100 can be achieved, avoiding areas where correction is missed. The four clamping segments 1 with the same curvature have good stability and balance, and the force shared by each clamping segment 1 is relatively uniform, so that there will be no situation where a clamping segment 1 is subjected to excessive or insufficient force, which effectively reduces the deformation or damage of the clamping segment 1 caused by uneven force. In addition, the design of the 90-degree curvature makes each clamping segment 1 have the same shape and size, which is convenient for batch manufacturing, processing and replacement, and reduces production costs.

[0053] In other embodiments, for the packages 100 of different sizes and deformation degrees, a clamp with two, three or four clamping sections 1 may be selected according to the specific situation to achieve the best correction effect, which will not be elaborated here.

[0054] In addition, in order to protect the quality of the sleeve 100 and prevent the clamping section 1 from damaging the outer wall of the sleeve 100 during the calibration process, a shock-absorbing pad is provided on the inner wall of the clamping section 1. The shock-absorbing pad can effectively buffer the impact force generated during the clamping process. When the clamping section 1 clamps and calibrates the sleeve 100, damage to the surface of the sleeve 100 that may be caused by rigid contact is avoided, thereby protecting the integrity and surface quality of the sleeve 100. Among them, the shock-absorbing pad can be selected from existing rubber pads, silicone pads, etc., which are not limited here.

[0055] Embodiment 2

[0056] The embodiment of the present invention further provides a method for manufacturing a sleeve fixing fixture, which is applied to the above-mentioned sleeve fixing fixture, and the specific steps thereof include:

[0057] Step 1: Cut the plate to be processed into a ring-shaped plate;

[0058] In this step, high-strength stainless steel sheets are selected as raw materials. Laser cutting equipment is used to cut the stainless steel sheets to be processed into ring-shaped sheets according to the pre-designed dimensions.

[0059] Step 2: cutting the annular plate into a plurality of arc-shaped extending clamping segments 1;

[0060] In this step, the annular plate is evenly cut into four clamping segments 1 extending in a 90-degree arc shape by using a high-precision water jet cutting process.

[0061] Step 3: Install the connecting components 2 at both ends of the clamping section 1;

[0062] In this step, first cut a number of right-angled triangular iron blocks as fixed blocks 21, punch holes in the upper part of the fixed blocks 21 to form positioning holes for the convenience of the limiting rod 22 to pass through, and fix a fixed block 21 at both ends of each clamping section 1 2 cm away from the edge by welding.

[0063] Step 4: Connecting the multiple clamping segments 1 end to end in sequence through the connecting assembly 2 to form a clamping space 10;

[0064] In this step, the limiting rod 22 passes through the positioning holes of the fixed stopper 21 of two adjacent clamping sections 1, and a limiting block 23 with an inner diameter matching the limiting rod 22 is respectively put on both ends of the limiting rod 22. The operation is repeated several times until multiple clamping sections 1 are connected end to end in sequence to form a clamping space 10.

[0065] After the sleeve fixing fixture is completed, the sleeve 100 is clamped in the clamping space 10. According to the needs of the sleeve 100, the limit block 23 is screwed to move the limit block 23 along the limit rod 22, thereby pushing the fixed stop block 21 to move, and adjusting the distance between the two ends close to each other in the two adjacent clamping sections 1 to change the squeezing force of the clamping section 1 on the sleeve 100, thereby adjusting the roundness of the sleeve 100.

[0066] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sleeve fixing fixture, characterized in that: include: At least two clamping sections (1), the clamping sections (1) extending in an arc shape, a plurality of the clamping sections (1) connected end to end to form a circular clamping space (10), and the sleeve (100) is clamped in the clamping space (10); A connecting component (2), wherein the ends of two adjacent clamping segments (1) are detachably connected via the connecting component (2), and the connecting component (2) is capable of adjusting the distance between the two ends of the two adjacent clamping segments (1) that are close to each other, so as to change the squeezing force of the clamping segments (1) on the sheath (100), thereby adjusting the roundness of the sheath (100).

2. The sleeve fixing fixture according to claim 1, characterized in that: The connecting assembly (2) comprises a fixed stopper (21), a limiting rod (22) and a limiting block (23); each of the outer side walls of the clamping section (1) close to both ends is fixedly connected to one of the fixed stoppers (21); the limiting rod (22) can be sequentially inserted into two mutually close fixed stoppers (21) in two adjacent clamping sections (1); each of the two ends of the limiting rod (22) is sleeved with one of the limiting blocks (23); the limiting block (23) can move along the axial direction of the limiting rod (22) to push the two fixed stoppers (21) to move relative to each other, thereby adjusting the distance between the two ends of the two clamping sections (1).

3. The sleeve fixing fixture according to claim 2, characterized in that: The fixed stopper (21) is provided with a positioning hole. In two adjacent clamping sections (1), the positioning holes of two mutually adjacent fixed stoppers (21) are coaxially arranged, and the limiting rod (22) can be inserted into the positioning hole.

4. The sleeve fixing fixture according to claim 2, characterized in that: The limiting rod (22) is a threaded rod, and the limiting block (23) is threadedly connected to the limiting rod (22).

5. The sleeve fixing fixture according to claim 2, characterized in that: The fixed stopper (21) is in the form of a right-angled triangle, and the right-angled side of the fixed stopper (21) is directly opposite to the limiting block (23).

6. The sleeve fixing fixture according to claim 2, characterized in that: The limiting rod (22) is provided with scale values, and the scale values ​​extend along the axial direction of the limiting rod (22).

7. The sleeve fixing fixture according to any one of claims 1 to 6, characterized in that: The number of the clamping sections (1) is greater than or equal to two and less than or equal to four.

8. The sleeve fixing fixture according to claim 7, characterized in that: Four clamping sections (1) are provided, and the arc of each clamping section (1) is 90 degrees.

9. The sleeve fixing fixture according to any one of claims 1 to 6, characterized in that: The inner wall of the clamping section (1) is provided with a shock-absorbing pad.

10. A method for manufacturing a sleeve fixing fixture, characterized in that: The sleeve fixing fixture used in any one of claims 1 to 9 comprises: Step 1: Cut the plate to be processed into a ring-shaped plate; Step 2: cutting the annular plate into a plurality of arc-shaped extending clamping segments (1); Step 3: Installing the connection assembly (2) at both ends of the clamping section (1); Step 4: Connecting the plurality of clamping segments (1) end to end in sequence via the connecting assembly (2) to form the clamping space (10).

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