Precise positioning marking tool for single crystal furnace

Abstract

The utility model discloses an accurate positioning marking tool for a single crystal furnace, which comprises a positioning block and a marking rope, the two sides of the positioning block are provided with magnetic top blocks capable of being transversely telescopically adjusted, and a sea heald pipe part on the positioning block is provided with a first positioning sleeve and a second positioning sleeve through a positioning rod; a centering rod is transversely inserted into the lower portion in the first positioning sleeve and the lower portion in the second positioning sleeve through positioning holes, a centering frame is inserted into one end of the centering rod through an inner supporting rod, a movable centering wheel is arranged at one end of the centering frame, wire grooves are formed in the upper side of the first positioning sleeve and the upper side of the second positioning sleeve, and the marking rope, the movable centering wheel and the wire grooves are horizontally arranged. The marking tool solves the problems that the distance between a marking positioning workpiece (a furnace bottom plate) and a marking area (a base cross beam) is long, and marking is difficult according to a high-position positioning line and a low-position marking line, the center positioning device is movable, and the size of the center positioning device can be changed to adapt to pipeline openings of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of marking tools, in particular to a precise positioning marking tool for a single crystal furnace. Background Art

[0002] The single crystal furnace is positioned on the base. To improve the positioning accuracy of the single crystal furnace base, it is necessary to position it on the outer diameter of the furnace bottom plate and draw positioning marks on the base beam (attached Figure 2 The center line of A and the center line of B in the center of the furnace bottom plate are calculated by the front and rear ends of the base. There is an error in the direct marking of the furnace bottom plate position, which is not recognized by customers. Because the height difference between the furnace bottom plate and the marking position of the base beam is about 2 meters and the outer diameter of the furnace bottom plate is 1650mm, it is difficult to locate the center line of the furnace bottom plate perpendicular to the base beam. After positioning, it is also difficult to extend the line to the center line of the base 2 meters below, so the corresponding tools need to be customized.

[0003] In the prior art, a laser marking tool for construction engineering with application number 202320181712.2 includes a suspension structure, a suspension frame structure, and a laser marking structure. The suspension structure is connected to the top center of the suspension frame structure, and the laser marking structure is connected to the bottom end of the suspension frame structure. The suspension structure can rotate at the top of the suspension frame structure, and the laser marking structure can shake at the bottom end of the suspension frame structure. The utility model optimizes the setting of the laser marking tool, changes the support point and fixing method of the traditional laser marking tool, and designs a laser marking tool that is fixed by suspension. After the structure is fixed, it always maintains the setting in the plumb direction. In addition, it can be fine-tuned in height after being fixed. It has better stability and is suitable for popularization and use. However, it is not convenient to measure the centerline position on both sides of the equipment, and the structure is complex and the cost is high. Utility Model Content

[0004] The utility model aims to provide a precise positioning marking tool for a single crystal furnace, so as to solve the problems that the prior art is inconvenient to measure the centerline positions on both sides of the equipment, has a complex structure and is costly.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precise positioning and marking tool for a single crystal furnace, comprising a positioning block and a marking rope, wherein the positioning block is provided with a magnetic top block which can be adjusted laterally telescopically on both sides, and the positioning block is provided with a first positioning sleeve and a second positioning sleeve through a positioning rod, and a centering rod is laterally inserted through a positioning hole in the lower part of the first positioning sleeve and the second positioning sleeve, a centering frame is inserted through an inner support rod inside one end of the centering rod, a movable centering wheel is provided at one end of the centering frame, a wire groove is provided on the upper side of the first positioning sleeve and the second positioning sleeve, and the marking rope is horizontally arranged with the movable centering wheel and the wire groove, and a plumb bob is also provided at one end of the marking rope.

[0006] Furthermore, the wire grooves on the upper sides of the first positioning sleeve and the second positioning sleeve are both horn grooves, and the bottom walls of the two wire grooves are arranged on the same horizontal line.

[0007] Furthermore, the outer surface of one end of the magnetic top block is an arc-shaped end surface, and the two magnetic top blocks are symmetrically arranged with respect to the positioning block.

[0008] Furthermore, an adjusting screw is provided in the middle of one side of the magnetic top block, and one end of the adjusting screw is threadedly connected to the outer side wall of the positioning block.

[0009] Furthermore, the side walls of the first positioning sleeve and the second positioning sleeve outside the positioning hole are also threaded with a first locking bolt, and the upper side of one end of the centering rod is provided with a second locking bolt.

[0010] Furthermore, the movable centering wheel is rotatably arranged at one end of the centering frame through a connecting shaft, and a guide groove is provided in the middle of the outer portion of the movable centering wheel.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The marking tool of the utility model solves the problem that the distance between the marking positioning workpiece (furnace bottom plate) and the marking area (base beam) is far, making it difficult to mark the line at a low position according to the high-position positioning line, and the center positioning device is movable, and the size can be changed to adapt to pipe openings of different sizes. The operation is convenient and fast, and the marking accuracy is high. The fixed position of the centering rod is adjustable, and the movable centering wheel can accurately control the plumb bob hanging position. In addition, the equipment has a simple structure, is easy to operate, and has a low manufacturing cost.

[0013] 2. The utility model provides transversely telescopically adjustable magnetic top blocks on both sides of the positioning block, an adjusting screw is provided in the middle of one side of the magnetic top block, and one end of the adjusting screw is threadedly connected to the outer wall of the positioning block, so that the distance between two adjacent magnetic top blocks can be adjusted by rotating the adjusting screw, thereby facilitating the insertion and fixing of the positioning block on the upper part of the pipe opening of different sizes, and adopts double-group positioning, so the positioning stability is higher.

[0014] 3. In the utility model, a centering rod is laterally inserted through the positioning hole in the lower part of the first positioning sleeve and the second positioning sleeve, and a first locking bolt is threadedly provided on the side walls of the first positioning sleeve and the second positioning sleeve outside the positioning hole, so that the centering rod can be laterally moved and adjusted relative to the positioning sleeve and locked by the first locking bolt, thereby facilitating the adjustment of the lateral use position of the centering rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the positioning block and the positioning sleeve of the utility model;

[0018] Figure 3 This is a schematic diagram of the centering frame structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the center line structure of the single crystal furnace mark of the utility model.

[0020] In the figure: 1. first positioning sleeve; 2. positioning rod; 3. positioning block; 4. adjusting screw; 5. magnetic top block; 6. centering rod; 7. wire groove; 8. first locking bolt; 9. positioning hole; 10. second positioning sleeve; 11. second locking bolt; 12. centering frame; 13. movable centering wheel; 14. marking rope; 15. plumb bob; 16. inner support rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiment of the utility model, a precise positioning and marking tool for a single crystal furnace includes a positioning block 3 and a marking rope 14. Magnetic top blocks 5 that can be adjusted laterally are arranged on both sides of the positioning block 3. The outer sides of one end of the magnetic top block 5 are all arc-shaped end faces, and the two magnetic top blocks 5 are symmetrically arranged about the positioning block 3. An adjusting screw 4 is arranged in the middle of one side of the magnetic top block 5, and one end of the adjusting screw 4 is threadedly connected to the outer wall of the positioning block 3, so that the distance between the two adjacent magnetic top blocks 5 can be adjusted by rotating the adjusting screw 4, so that the positioning block 3 can be inserted and fixed on the upper part of the pipe mouth of different sizes. In addition, double-group positioning is adopted, and the positioning stability is high, which is conducive to improving the accuracy of marking.

[0023] like Figure 1 and Figure 3As shown, in order to guide the marking rope 14, the positioning block 3 is provided with a first positioning sleeve 1 and a second positioning sleeve 10 through a positioning rod 2, a centering rod 6 is inserted horizontally through a positioning hole 9 in the lower part of the first positioning sleeve 1 and the second positioning sleeve 10, a centering frame 12 is inserted through an inner support rod 16 at one end of the centering rod 6, and a movable centering wheel 13 is provided at one end of the centering frame 12, and a wire groove 7 is provided on the upper side of the first positioning sleeve 1 and the second positioning sleeve 10, and the wire grooves 7 on the upper sides of the first positioning sleeve 1 and the second positioning sleeve 10 are It is a ram's horn groove, and the bottom walls of the two wire grooves 7 are arranged on the same horizontal line. The movable centering wheel 13 is rotatably arranged at one end of the centering frame 12 through a connecting shaft, and a guide groove is provided in the middle part of the outer side of the movable centering wheel 13, and the marking rope 14 is horizontally arranged with the movable centering wheel 13 and the wire groove 7, which is used to perform horizontal guiding and limiting processing on one end of the marking rope 14. A plumb bob 15 is also provided at one end of the marking rope 14, and a second locking bolt 11 is provided on the upper side of one end of the centering rod 6, which is used to lock the inner support rod 16 inserted into one end of the centering rod 6.

[0024] like Figure 1 and Figure 2 As shown, in order to adjust the lateral use position of the centering rod 6, the side walls of the first positioning sleeve 1 and the second positioning sleeve 10 outside the positioning hole 9 are also threaded with a first locking bolt 8, so that after the centering rod 6 is adjusted to move laterally relative to the positioning sleeve, it is locked by the first locking bolt 8, thereby facilitating the adjustment of the lateral use position of the centering rod 6.

[0025] The working principle and use process of the utility model: when in use, the center circle of the positioning block 3 and the size of the adjusting screw 4 are measured by using a caliper to adjust the spacing between the two magnetic top blocks 5, and then the magnetic top block 5 is embedded in the upper part of the A and B evacuated pipe openings to complete the positioning and installation of the first positioning sleeve 1 and the second positioning sleeve 10; using the two-point one-line principle, the centering rod 6 is horizontally inserted into the lower part of the first positioning sleeve 1 and the second positioning sleeve 10, and the position of the centering rod 6 is fixed by the first locking bolt 8 after adjusting the position, and the movable centering wheel 13 is inserted into one end of the centering rod 6 by using the centering frame 12 and the inner support rod 16, and the second locking bolt 11 is used to lock it after finding a suitable position, and finally one end of the marking rope 14 is fixed in the wire groove 7 on the upper part of the second positioning sleeve 10, and the other end of the marking rope 14 passes through the first positioning sleeve 1 and the movable centering wheel 13 in turn and extends the center line to the lower beam through the plumb bob 15, and the center line is drawn on the beam according to the extension line. When positioning with the A1A2 positioning port, draw the A center line; when positioning with the B1B2 positioning port, draw the B center line.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A precise positioning and marking tool for a single crystal furnace, comprising a positioning block (3) and a marking rope (14), characterized in that: The positioning block (3) is provided with a magnetic top block (5) which can be adjusted laterally. The positioning block (3) is provided with a first positioning sleeve (1) and a second positioning sleeve (10) through a positioning rod (2). A centering rod (6) is inserted laterally through a positioning hole (9) in the lower part of the first positioning sleeve (1) and the second positioning sleeve (10). A centering frame (12) is inserted into one end of the centering rod (6) through an inner support rod (16). A movable centering wheel (13) is provided at one end of the centering frame (12). A guide wire groove (7) is provided on the upper side of the first positioning sleeve (1) and the second positioning sleeve (10). A marking rope (14) is arranged horizontally with the movable centering wheel (13) and the guide wire groove (7). A plumb bob (15) is also provided at one end of the marking rope (14).

2. The precise positioning marking tool for a single crystal furnace according to claim 1, characterized in that: The wire grooves (7) on the upper sides of the first positioning sleeve (1) and the second positioning sleeve (10) are both horn grooves, and the bottom walls of the two wire grooves (7) are arranged on the same horizontal line.

3. The precise positioning marking tool for a single crystal furnace according to claim 1, characterized in that: The outer surface of one end of the magnetic top block (5) is an arc-shaped end surface, and the two magnetic top blocks (5) are symmetrically arranged with respect to the positioning block (3).

4. The precise positioning marking tool for a single crystal furnace according to claim 3, characterized in that: An adjusting screw (4) is provided in the middle of one side of the magnetic top block (5), and one end of the adjusting screw (4) is threadedly connected to the outer side wall of the positioning block (3).

5. The precise positioning marking tool for a single crystal furnace according to claim 1, characterized in that: A first locking bolt (8) is also threadedly provided on the side walls of the first positioning sleeve (1) and the second positioning sleeve (10) outside the positioning hole (9), and a second locking bolt (11) is provided on the upper side of one end of the centering rod (6).

6. The precise positioning marking tool for a single crystal furnace according to claim 1, characterized in that: The movable centering wheel (13) is rotatably arranged at one end of the centering frame (12) via a connecting shaft, and a guide groove is provided at the outer middle part of the movable centering wheel (13).

Images