A thin-walled cylindrical structure drawing device with adaptive thickness and curvature
By designing thin-walled structure line drawing devices with adaptive thickness and curvature, the problem of customizing a large number of tooling in the prior art is solved, and the rapid and accurate line drawing of workpieces with different thicknesses and curvature is achieved, saving costs and improving operational convenience.
Patent Information
- Application Number
- CN202211278549.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-19
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2042-10-19
AI Technical Summary
In the prior art, different toolings are required to customize cylindrical structure workpieces of different thicknesses and curvatures to draw lines, resulting in the need to customize a large number of tooling, which is costly and cumbersome to use.
A thin-wall structure line drawing device with adaptive thickness and curvature is designed, including a first clamping frame, a second clamping frame, a long rod pen holder and a pen. By adjusting the spacing of the clamping frame, we can adapt to workpieces of different thicknesses, and through the adjustment of the long rod pen holder, we can adapt to inner or outer walls of different depths to draw lines.
It realizes fast and precise line drawing operations on workpieces of different thicknesses and curvatures, saving the cost of making different models of workpieces. It has a light design, simple operation, good promotion and high safety.
Smart Images
Figure CN115488849B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mechanical processing, and in particular to a thin-wall structure drawing device with adaptive thickness and curvature. Background Art
[0002] For the processing of workpieces with thin-walled cylindrical structures, horizontal lines need to be drawn on the inner or outer walls to assist processing under certain processing requirements. There are two main existing methods of drawing lines: one is manual drawing. Whether it is the inner or outer wall, the accuracy of manual drawing is difficult to guarantee, especially for the inner wall, there are problems such as narrow working space and high difficulty in operation; the other is to make corresponding tooling to assist in drawing lines. This method is effective for specific types of workpieces, but for cylindrical structures of different thicknesses and different curvatures, a large number of tooling needs to be customized, and the corresponding model of tooling needs to be found during specific operations. This method is not only uneconomical, but also still relatively cumbersome in actual use.
[0003] Since the prior art requires different tooling to be customized for marking cylindrical structure workpieces of different thicknesses and different curvatures, a large number of tooling needs to be customized, resulting in high costs and cumbersome use. Therefore, the present invention studies and designs a thin-wall structure marking device with adaptive thickness and curvature. Summary of the invention
[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that different tooling needs to be customized to mark cylindrical structure workpieces of different thicknesses and different curvatures, which results in the need to customize a large number of tooling and leads to high costs, thereby providing a thin-wall structure marking device with adaptive thickness and curvature.
[0005] In order to solve the above problems, the present invention provides a thin-wall structure drawing device with adaptive thickness and curvature, which comprises:
[0006] A first clamping frame, a second clamping frame, a long-shaft pen holder and a pen, the first clamping frame includes a first operating part, a first combining part and a first fastening part, the second clamping frame includes a second operating part, a second combining part and a second fastening part, one end of the first combining part is connected to the first operating part, and the other end is connected to the first fastening part, one end of the second combining part is connected to the second operating part, and the other end is connected to the second fastening part, the first combining part and the second combining part intersect, so that the first clamping frame and the second clamping frame can rotate around the intersection position, the first fastening part can be connected to the outer wall of the thin-walled structure, and the second fastening part can be connected to the inner wall of the thin-walled structure to form a clamp for the thin-walled structure, the spacing distance between the first operating part and the second operating part can be adjusted to adjust the spacing between the first fastening part and the second fastening part, and then clamp the thin-walled structure according to the thickness of different thin-walled structures, the long-shaft pen holder is connected to the second fastening part, and the pen is arranged at one end of the long-shaft pen holder to draw lines on the inner wall of the thin-walled structure with the pen.
[0007] In some embodiments, a bolt and a nut are further included, wherein the bolt is connected to the first operating part and the second operating part at the same time, and the nut is threadedly connected to the bolt, so that the distance between the first operating part and the second operating part can be adjusted by the nut, thereby adjusting the distance between the first fastening part and the second fastening part; and / or,
[0008] The length of the second fastening portion is longer than that of the first fastening portion; and the long-shaft pen holder can be extended or shortened relative to the second fastening portion.
[0009] In some embodiments, the first operating part includes a first cross bar, a first vertical bar and a second vertical bar, one end of the first cross bar is connected to the first vertical bar, and the other end is connected to the second vertical bar; the first combining part includes a first diagonal bar and a second diagonal bar, the first fastening part includes a second cross bar, a third vertical bar and a fourth vertical bar, one end of the second cross bar is connected to the third vertical bar, and the other end is connected to the fourth vertical bar; one end of the first diagonal bar is connected to the first vertical bar, and the other end is connected to the third vertical bar, one end of the second diagonal bar is connected to the second vertical bar, and the other end is connected to the fourth vertical bar, so that the first operating part, the first combining part and the first fastening part form a first frame structure.
[0010] In some embodiments, the second operating part includes a third horizontal bar, a fifth vertical bar and a sixth vertical bar, one end of the third horizontal bar is connected to the fifth vertical bar, and the other end is connected to the sixth vertical bar; the second combining part includes a third diagonal bar and a fourth diagonal bar, and the second fastening part includes a seventh vertical bar and an eighth vertical bar; and one end of the third diagonal bar is connected to the fifth vertical bar, and the other end is connected to the seventh vertical bar, and one end of the fourth diagonal bar is connected to the sixth vertical bar, and the other end is connected to the eighth vertical bar, so that the second operating part, the second combining part and the second fastening part form a second frame structure.
[0011] In some embodiments, a connecting rod is also included, wherein a first hole is provided on the first oblique rod, a second hole is provided on the third oblique rod, the first hole is arranged opposite to the second hole, the first oblique rod and the third oblique rod are cross-connected, a third hole is provided on the second oblique rod, a fourth hole is provided on the fourth oblique rod, and the third hole is arranged opposite to the fourth hole; the second oblique rod and the fourth oblique rod are cross-connected, one end of the connecting rod is passed through the first hole and the second hole, and the other end is passed through the third hole and the fourth hole, so that the first clamping frame can rotate around the connecting rod, and the second clamping frame can rotate around the connecting rod.
[0012] In some embodiments, the first diagonal rod includes a first ring, the third diagonal rod is inserted into the first ring, the first hole is arranged on the first ring, the fourth diagonal rod includes a second ring, the second diagonal rod is inserted into the second ring, the fourth hole is arranged on the second ring, the outside of the first hole is also provided with a first anti-falling fastening structure to prevent one end of the connecting rod from falling off, and the outside of the fourth hole is also provided with a second anti-falling fastening structure to prevent the other end of the connecting rod from falling off.
[0013] In some embodiments, a first vertical pulley is provided at the lower end of the first ring, and a second vertical pulley is also provided at the lower end of the second ring. The first vertical pulley can be rollingly connected with the upper end of the thin-walled structure, and the second vertical pulley can be rollingly connected with the upper end of the thin-walled structure, so that the line drawing device can roll along the upper end of the thin-walled structure.
[0014] In some embodiments, a first bottom pulley is disposed on a side of the lower end of the third vertical rod facing the second fastening portion, and a second bottom pulley is disposed on a side of the lower end of the fourth vertical rod facing the second fastening portion, and the first bottom pulley and the second bottom pulley can respectively be in rolling contact with the outer wall of the thin-walled structure, so that the line drawing device can roll on the outer wall of the thin-walled structure;
[0015] A third bottom pulley is provided on the side of the lower end of the seventh vertical rod facing the first fastening portion, a fourth bottom pulley is provided on the side of the lower end of the eighth vertical rod facing the first fastening portion, a first top pulley is provided on the side of the upper end of the seventh vertical rod facing the first fastening portion, and a second top pulley is provided on the side of the upper end of the eighth vertical rod facing the first fastening portion. The third bottom pulley, the fourth bottom pulley, the first top pulley and the second top pulley can respectively be in rolling connection with the inner wall of the thin-walled structure, so that the line drawing device can roll on the outer wall of the thin-walled structure.
[0016] In some embodiments, it also includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first sleeve, a second sleeve, a first fastener and a second fastener, one end of the first connecting rod is connected to the upper end of the seventh vertical rod, and the other end is connected to the first sleeve, one end of the second connecting rod is connected to the upper end of the eighth vertical rod, and the other end is connected to the first sleeve; one end of the third connecting rod is connected to the lower end of the seventh vertical rod, and the other end is connected to the second sleeve; one end of the fourth connecting rod is connected to the lower end of the eighth vertical rod, and the other end is connected to the second sleeve; the first sleeve is located above the second sleeve, and the long-shaft pen holder is respectively inserted into the first sleeve and the second sleeve, the first fastener can fix the long-shaft pen holder to the first sleeve, and the second fastener can fix the long-shaft pen holder to the second sleeve, and the depth of the pen in the thin-walled structure can be adjusted by adjusting the length of the long-shaft pen holder extending out of the first sleeve.
[0017] In some embodiments, a third sleeve and a third fastener are further included, the lower end of the long-shaft pen holder is fixedly connected to the outer wall of the third sleeve, the pen is inserted into the third sleeve, and the third fastener can fix the pen to the third sleeve so as to adjust the pen to contact the inner wall of the thin-walled structure for drawing lines.
[0018] The thin-wall structure marking device with adaptive thickness and curvature provided by the present invention has the following beneficial effects:
[0019] 1. The present invention provides a first and a second clamping frame, and the two clamping frames respectively include an operating portion, a combining portion and a fastening portion, the two operating portions can be used for operation and adjustment, the two combining portions intersect to form a hinged portion, and form a structure in which the two clamping frames can rotate around the combining portion respectively, and the spacing between the two fastening portions can be effectively adjusted by adjusting the spacing between the two operating portions, the first fastening portion can be connected to the outer wall of the thin-walled structure, and the second fastening portion can be connected to the inner wall of the thin-walled structure, and the two fastening portions are used to form a clamp on the thin-walled structure, so the spacing between the two fastening portions can be adjusted by adjusting the spacing between the two operating portions, so that the line drawing device can be clamped on the thin-walled structure for thin-walled structures of different thicknesses, thereby The invention can effectively draw lines on thin-walled structures of different thicknesses, avoiding the problems of low drawing accuracy, great operating difficulty, and long operation time existing in manual drawing. The invention can realize fast and accurate drawing operations; the invention realizes self-adaptation to workpieces of different wall thicknesses and different curvatures, saving a large amount of cost for making tooling of different models; the invention is not only applicable to thin-walled cylindrical workpieces, but also to flat plates or plates with a certain curvature; the invention can draw lines not only on the inner wall of a thin-walled cylinder, but also on its outer wall; when drawing lines, the invention can not only make the pen contact vertically with the wall of the workpiece, but also flexibly adjust the contact angle, which is more convenient for actual drawing operations; the invention is light in design, simple in operation, easy to use, good in promotion, and high in safety;
[0020] 2. The present invention can also adjust the length of the upper end of the long-shaft pen holder extending out of the sleeve through the structure of the long-shaft pen holder and the two sleeves, thereby effectively adjusting the depth of the pen extending into the thin-wall structure, so that lines can be drawn at different positions. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a front schematic diagram of the thin-wall structure drawing device with adaptive thickness and curvature of the present invention;
[0022] Figure 2 It is a schematic diagram of the reverse side of the thin-walled structure drawing device with adaptive thickness and curvature of the present invention;
[0023] Figure 3 It is a schematic diagram of the interior of the line drawing device of the present invention during line drawing operation;
[0024] Figure 4 It is an external schematic diagram of the line drawing device of the present invention during line drawing operation.
[0025] The reference numerals are:
[0026] 1. First clamping frame; 101. First operating part; 111. First cross bar; 112. First vertical bar; 113. Second vertical bar; 102. First joint part; 121. First diagonal bar; 122. Second diagonal bar; 123. First sleeve; 103. First fastening part; 131. Second cross bar; 132. Third vertical bar; 133. Fourth vertical bar; 2. Second clamping frame; 201. Second operating part; 211. Third cross bar; 212. Fifth vertical bar; 213. Sixth vertical bar; 202. Second joint part; 221. Third diagonal bar; 222. Fourth diagonal bar; 223. Second sleeve; 203. Second fastening part; 232. Seventh vertical bar; 233. Eighth vertical bar; 3. , the first bottom pulley; 4, the second bottom pulley; 5, the third bottom pulley; 6, the fourth bottom pulley; 7, the first top pulley; 8, the second top pulley; 9, the first vertical pulley; 10, the second vertical pulley; 11, the first anti-slip fastening structure; 12, the second anti-slip fastening structure; 13, the connecting rod; 14, the bolt; 15, the nut; 16, the nut; 17, the first fastener; 18, the first sleeve; 191, the first connecting rod; 19, the second connecting rod; 20, the second fastener; 21, the second sleeve; 2211, the third connecting rod; 22, the fourth connecting rod; 23, the third fastener; 24, the third sleeve; 25, the pen; 26, the long-bar pen holder; 27, the thin-walled structure. DETAILED DESCRIPTION
[0027] like Figure 1-4 As shown, the present invention provides a thin-wall structure drawing device with adaptive thickness and curvature, which includes:
[0028] A first clamping frame 1, a second clamping frame 2, a long-shaft pen holder and a pen 25, wherein the first clamping frame 1 includes a first operating portion 101, a first combining portion 102 and a first fastening portion 103, and the second clamping frame 2 includes a second operating portion 201, a second combining portion 202 and a second fastening portion 203, one end of the first combining portion 102 is connected to the first operating portion 101, and the other end is connected to the first fastening portion 103, one end of the second combining portion 202 is connected to the second operating portion 201, and the other end is connected to the second fastening portion 203, and the first combining portion 102 intersects with the second combining portion 202, so that the first clamping frame 1 and the second The clamping frame 2 can rotate around the intersection position, the first fastening part 103 can be connected with the outer wall of the thin-walled structure, and the second fastening part 203 can be connected with the inner wall of the thin-walled structure to form a clamp for the thin-walled structure. The spacing distance between the first operating part 101 and the second operating part 201 can be adjusted to adjust the spacing between the first fastening part 103 and the second fastening part 203, and then clamp the thin-walled structure according to the thickness of different thin-walled structures. The long-shaft pen holder 26 is connected to the second fastening part 203, and the pen 25 is set at one end of the long-shaft pen holder 26 to draw lines on the inner wall of the thin-walled structure through the pen 25.
[0029] The present invention provides a first and a second clamping frame, and the two clamping frames respectively include an operating portion, a combining portion and a fastening portion, the two operating portions can be used for operation and adjustment, the two combining portions intersect to form a hinged portion, and form a structure in which the two clamping frames can rotate around the combining portion respectively, and the spacing between the two fastening portions can be effectively adjusted by adjusting the spacing between the two operating portions, the first fastening portion can be connected to the outer wall of the thin-walled structure, and the second fastening portion can be connected to the inner wall of the thin-walled structure, and the two fastening portions are used to form a clamp on the thin-walled structure, so the spacing between the two fastening portions can be adjusted by adjusting the spacing between the two operating portions, so that the line drawing device can be clamped on the thin-walled structure for thin-walled structures of different thicknesses, thereby having The invention can effectively draw lines on thin-walled structures of different thicknesses, avoiding the problems of low drawing accuracy, great operating difficulty, long operation time, etc. existing in manual drawing, and can realize fast and accurate drawing operations; the invention realizes self-adaptation to workpieces of different wall thicknesses and different curvatures, saving a large amount of cost for manufacturing tooling of different models; the invention is not only applicable to thin-walled cylindrical workpieces, but also to flat plates or plates with a certain curvature; the invention can draw lines not only on the inner wall of a thin-walled cylinder, but also on its outer wall; when drawing lines, the invention can not only make the pen contact vertically with the wall of the workpiece, but also flexibly adjust the contact angle, which is more convenient for actual drawing operations; the invention is light in design, simple in operation, easy to use, good in promotion, and high in safety.
[0030] The working principle of the specific embodiment of the present invention is as follows: first, the lower parts of the long and short clamping frames of the device are respectively placed on both sides of the wall of the cylindrical workpiece, and the two vertical pulleys are erected at the end face of the cylindrical workpiece; then the lower part of the long clamping frame is close to the wall of the cylindrical workpiece, and the four horizontal pulleys thereon are all close to the wall; then the wall on the other side of the cylindrical workpiece is clamped by the short clamping frame, and the two horizontal pulleys thereon are all close to the side wall; after manually clamping the workpiece, the device is completely fastened to the workpiece by tightening the nuts on the upper parts of the long and short clamping frames; then the long-bar pen holder is passed through the two sleeves on the outer side of the lower part of the long clamping frame, and the length and angle of the long-bar pen holder penned into the workpiece are adjusted, and the position of the long-bar pen holder is fixed by the fastening structure on the sleeve; the position of the pen is adjusted by the sleeve at the bottom of the long-bar pen holder and the fastening structure for fixing the pen; finally, the device is pushed along the circumference of the cylindrical workpiece to complete the line drawing operation.
[0031] The present invention provides a thin-walled structure marking device with adaptive thickness and curvature, comprising: a long clamping frame (a second clamping frame 2) and a short clamping frame (a first clamping frame 1), wherein the long and short clamping frames are connected by a connecting rod which is integrated with the long clamping frame, and anti-slip fastening structures are provided at both ends of the connecting rod, and vertical pulleys are provided at the bottom of the structure respectively. The upper parts of the long and short clamping frames are fastened by bolts, nuts and nuts. A total of four horizontal pulleys are provided at the inner bottom and top of the lower half of the long clamping frame, and two support frames, corresponding sleeves and fastening structures are provided at the outer bottom and top respectively. Two horizontal pulleys are provided at the inner bottom of the lower half of the short clamping frame. In addition, a sleeve and a fastening structure for fixing the pen are provided at the bottom of the long-bar pen holder.
[0032] The device described above is a bilaterally symmetrical structure.
[0033] In some embodiments, a bolt 14 and a nut 15 are further included, wherein the bolt 14 is connected to the first operating portion 101 and the second operating portion 201 at the same time, and the nut 15 is threadedly connected to the bolt 14, so that the distance between the first operating portion 101 and the second operating portion 201 can be adjusted by the nut 15, thereby adjusting the distance between the first fastening portion 103 and the second fastening portion 203; and / or,
[0034] The length of the second fastening portion 203 is longer than that of the first fastening portion 103 ; the long-shaft pen holder 26 can be extended or shortened relative to the second fastening portion 203 .
[0035] The present invention uses the structure of bolts, nuts and nuts to increase or decrease the distance between the two operating parts by screwing the nuts, thereby adjusting the distance between the two fastening parts to adapt to thin-walled structures of different thicknesses; the second fastening part is longer than the first fastening part, so that the brush structure extending into the thin-walled structure can go deeper and can draw lines on deeper inner walls; the long-barrel pen holder can be extended or shortened relative to the second fastening part to adjust the depth of the brush, thereby being suitable for drawing lines at different depths.
[0036] As described above, a round hole is provided at the middle connection of the top of the long and short clamping frames for fastening their occlusal state. A bolt passes through the round hole. One end of the bolt is connected to a nut to prevent one end from completely passing through the hole. The other end of the bolt is fastened with a nut to achieve the effect of the fixing device clamping the clamped workpiece.
[0037] As mentioned above, the bottom length of the long clamping frame is twice the bottom length of the short clamping frame, while the top lengths are the same, so that when the device is clamping the work surface of the workpiece, it is first ensured that one side of the long clamping frame is completely perpendicular to the work surface, which is also convenient for accurately measuring the depth of the drawn line. When the short clamping frame clamps the workpiece, the clamping position is located in the middle corresponding to the clamping position of the long clamping frame, which can play an effective clamping role, and due to the difference in length of the clamping frame, it avoids the disadvantage that the workpiece can only be clamped when the corresponding clamping parts are completely parallel, and realizes the adaptability to the thickness of the clamped workpiece.
[0038] In some embodiments, the first operating portion 101 includes a first cross bar 111, a first vertical bar 112 and a second vertical bar 113, one end of the first cross bar 111 is connected to the first vertical bar 112, and the other end is connected to the second vertical bar 113; the first combining portion 102 includes a first oblique bar 121 and a second oblique bar 122, the first fastening portion 103 includes a second cross bar 131, a third vertical bar 132 and a fourth vertical bar 133, one end of the second cross bar 131 is connected to the third vertical bar 132, and the other end is connected to the fourth vertical bar 133; one end of the first oblique bar 121 is connected to the first vertical bar 112, and the other end is connected to the third vertical bar 132, one end of the second oblique bar 122 is connected to the second vertical bar 113, and the other end is connected to the fourth vertical bar 133, so that the first operating portion 101, the first combining portion 102 and the first fastening portion 103 form a first frame structure. This is the preferred structural form of the first operating part, the first combining part and the first fastening part of the present invention, that is, forming a first frame structure, which is convenient for connecting with the second combining part to form a hinged part, the first operating part of the frame structure is convenient for cooperation and operation, and the first fastening part of the frame structure is convenient for clamping the outer wall of the thin-walled structure.
[0039] In some embodiments, the second operating portion 201 includes a third cross bar 211, a fifth vertical bar 212 and a sixth vertical bar 213, one end of the third cross bar 211 is connected to the fifth vertical bar 212, and the other end is connected to the sixth vertical bar 213; the second combining portion 202 includes a third diagonal bar 221 and a fourth diagonal bar 222, and the second fastening portion 203 includes a seventh vertical bar 232 and an eighth vertical bar 233; and one end of the third diagonal bar 221 is connected to the fifth vertical bar 212, and the other end is connected to the seventh vertical bar 232, one end of the fourth diagonal bar 222 is connected to the sixth vertical bar 213, and the other end is connected to the eighth vertical bar 233, so that the second operating portion 201, the second combining portion 202 and the second fastening portion 203 form a second frame structure. This is the preferred structural form of the second operating part, the second combining part and the second fastening part of the present invention, that is, forming a second frame structure, which is convenient for connecting with the first combining part through the second combining part to form a hinged part, the second operating part of the frame structure is convenient for cooperation and operation, and the second fastening part of the frame structure is convenient for clamping the outer wall of the thin-walled structure.
[0040] In some embodiments, a connecting rod 13 is also included, a first hole is provided on the first inclined rod 121, a second hole is provided on the third inclined rod 221, the first hole is arranged opposite to the second hole, the first inclined rod 121 and the third inclined rod 221 are cross-connected, a third hole is provided on the second inclined rod 122, a fourth hole is provided on the fourth inclined rod 222, and the third hole is arranged opposite to the fourth hole; the second inclined rod 122 and the fourth inclined rod 222 are cross-connected, one end of the connecting rod 13 is penetrated into the first hole and the second hole, and the other end is penetrated into the third hole and the fourth hole, so that the first clamping frame 1 can rotate around the connecting rod 13, and the second clamping frame 2 can rotate around the connecting rod 13. The present invention uses the structure of the connecting rod and the multiple hole structures on the four oblique rods to allow one end of the connecting rod to be inserted into the first hole and the second hole, and the other end of the connecting rod to be inserted into the third hole and the fourth hole, thereby effectively forming a hinge structure with the connecting rod as the hinge axis, so that the first clamping frame can rotate around the connecting rod and the second clamping frame can rotate around the connecting rod.
[0041] As described above, the long clamping frame, connecting rod, and the anti-slip fastening structures at both ends of the connecting rod are all integrated. The circular rotating area in the middle of the short clamping frame passes through the connecting rod, and the displacement along the axial direction of the connecting rod is restricted by the circular rotating area in the middle of the long clamping frame and the anti-slip fastening structure at the end of the connecting rod. The cumbersome riveting method is avoided here, so that the long and short clamping frames can achieve a movement mode of mutual engagement and separation.
[0042] In some embodiments, the first inclined rod 121 includes a first ring 123, the third inclined rod 221 is inserted into the first ring 123, the first hole is set on the first ring 123, the fourth inclined rod 222 includes a second ring 223, the second inclined rod 122 is inserted into the second ring 223, the fourth hole is set on the second ring 223, the first hole is also provided with a first anti-slip fastening structure 11 to prevent one end of the connecting rod 13 from falling off, and the fourth hole is also provided with a second anti-slip fastening structure 12 to prevent the other end of the connecting rod 13 from falling off. The present invention can also fix the part of the connecting rod extending outside the hole and prevent the connecting rod from falling out of the hole through the structure of the first ring and the second ring, as well as the first and second anti-slip fastening structures, thereby ensuring the stability of the hinged structure.
[0043] In some embodiments, the lower end of the first ring 123 is provided with a first vertical pulley 9, and the lower end of the second ring 223 is also provided with a second vertical pulley 10, the first vertical pulley 9 can be in rolling contact with the upper end of the thin-walled structure, and the second vertical pulley 10 can be in rolling contact with the upper end of the thin-walled structure, so that the line drawing device can roll along the upper end of the thin-walled structure. The present invention can also be arranged at the upper end of the edge of the thin-walled structure and roll along it through the arrangement of the first vertical pulley and the second vertical pulley, so that the line drawing device can clamp the thin-walled structure and draw lines along the direction of its upper edge.
[0044] As described above, the two pulleys connected to the anti-slip fastening structures at both ends of the connecting rod are both in the vertical direction, so as to achieve the support and sliding effect in the vertical direction when the device moves in the horizontal direction.
[0045] In some embodiments, a first bottom pulley 3 is disposed on a side of the lower end of the third vertical rod 132 facing the second fastening portion 203, and a second bottom pulley 4 is disposed on a side of the lower end of the fourth vertical rod 133 facing the second fastening portion 203, and the first bottom pulley 3 and the second bottom pulley 4 can respectively be in rolling contact with the outer wall of the thin-walled structure, so that the line drawing device can roll on the outer wall of the thin-walled structure;
[0046] A third bottom pulley 5 is provided at the lower end of the seventh vertical rod 232 toward the side of the first fastening portion 103, a fourth bottom pulley 6 is provided at the lower end of the eighth vertical rod 233 toward the side of the first fastening portion 103, a first top pulley 7 is provided at the upper end of the seventh vertical rod 232 toward the side of the first fastening portion 103, and a second top pulley 8 is provided at the upper end of the eighth vertical rod 233 toward the side of the first fastening portion 103. The third bottom pulley 5, the fourth bottom pulley 6, the first top pulley 7 and the second top pulley 8 can respectively be in rolling connection with the inner wall of the thin-walled structure, so that the drawing device can roll on the outer wall of the thin-walled structure.
[0047] The present invention can also be rollingly connected to the outer wall of the thin-walled structure through the first bottom pulley and the second bottom pulley, thereby facilitating the rolling movement of the line drawing operation of the line drawing device. The third bottom pulley 5, the fourth bottom pulley 6, the first top pulley 7 and the second top pulley 8 can also be rollingly connected to the inner wall of the thin-walled structure, thereby facilitating the rolling movement of the line drawing operation of the line drawing device.
[0048] As mentioned above, the pulleys of the lower part of the long and short clamping frames are all in the horizontal direction, so that the device can still move in the horizontal direction after clamping the workpiece, and realizes the adaptability to workpieces with different curvatures.
[0049] The pulleys as described above are all made of rubber material to increase the contact friction and at the same time prevent the clamping force from being too large and damaging the workpiece.
[0050] In some embodiments, the first connecting rod 191, the second connecting rod 19, the third connecting rod 2211, the fourth connecting rod 22, the first sleeve 18, the second sleeve 21, the first fastener 17 and the second fastener 20 are also included. One end of the first connecting rod 191 is connected to the upper end of the seventh vertical rod 232, and the other end is connected to the first sleeve 18. One end of the second connecting rod 19 is connected to the upper end of the eighth vertical rod 233, and the other end is connected to the first sleeve 18. One end of the third connecting rod 2211 is connected to the lower end of the seventh vertical rod 232, and the other end is connected to the second sleeve 21. , one end of the fourth connecting rod 22 is connected to the lower end of the eighth vertical rod 233, and the other end is connected to the second sleeve 21; the first sleeve 18 is located above the second sleeve 21, and the long-barrel pen holder 26 is respectively inserted into the first sleeve 18 and the second sleeve 21, the first fastener 17 can fix the long-barrel pen holder 26 to the first sleeve 18, and the second fastener 20 can fix the long-barrel pen holder 26 to the second sleeve 21, and the depth of the pen 25 in the thin-walled structure can be adjusted by adjusting the length of the long-barrel pen holder 26 extending above the first sleeve 18. The present invention also enables the long-barrel pen holder to be effectively connected to the first fastening part through multiple connecting rods and multiple sleeves, and can adjust the long-barrel pen holder to move up and down to adjust the up and down height of the brush, so as to be suitable for drawing lines at different brush positions.
[0051] In some embodiments, a third sleeve 24 and a third fastener 23 are further included, the lower end of the long-barrel pen holder 26 is fixedly connected to the outer wall of the third sleeve 24, the pen 25 is inserted into the third sleeve 24, and the third fastener 23 can fix the pen 25 to the third sleeve 24, so that the contact between the pen 25 and the inner wall of the thin-walled structure 27 can be adjusted to draw lines. The present invention can also adjust the distance between the brush and the inner wall or outer wall of the thin-walled structure through the third sleeve and the third fastener, so that the tip of the pen can contact the wall to complete the drawing.
[0052] As described above, the two sleeves at the outer side of the lower half of the long clamping frame are concentric and vertical, so that the long-barrel pen holder can only move in the vertical direction and rotate along its axis.
[0053] As mentioned above, fastening structures are respectively arranged on two sleeves at the outer sides of the lower half of the long clamping frame, and the fastening structures tighten the long-barrel pen holder and fix it by twisting the connecting rod with threads.
[0054] The sleeve and fastening structure at the bottom of the long-shaft pen holder as described above are used to adjust the contact position between the pen and the workpiece, and the contact angle between the pen and the workpiece can be controlled by the rotation angle of the long-shaft pen holder along its axis, further facilitating the line drawing operation.
[0055] The working principle of the specific implementation mode of the present invention:
[0056] Step 1: Place the lower parts of the long and short clamping frames of the device on both sides of the wall of the cylindrical workpiece, and make the two vertical pulleys stand on the end surface of the cylindrical workpiece;
[0057] Step 2: Place the lower half of the long clamping frame close to the wall of the cylindrical workpiece, and make the four horizontal pulleys on it close to the wall;
[0058] Step 3: Clamp the wall surface on the other side of the cylindrical workpiece by means of a short clamping frame, and make the two horizontal pulleys thereon close to the side wall surface;
[0059] Step 4: After manually clamping the workpiece, tighten the nuts on the upper part of the long and short clamping frames to completely fasten the device to the workpiece;
[0060] Step 5: Pass the long-rod pen holder through the two sleeves on the outer side of the lower half of the long clamping frame, and then adjust the length and angle of the long-rod pen holder penetrating into the workpiece, and fix the position of the long-rod pen holder through the fastening structure on the sleeve;
[0061] Step 6: Adjust the position of the pen through the sleeve at the bottom of the long-barrel pen holder and the fastening structure for fixing the pen;
[0062] Step 7: Push the device along the circumference of the cylindrical workpiece to complete the line drawing operation.
[0063] The present invention has the following six beneficial effects: it avoids the problems of low line drawing accuracy, great operating difficulty, long operation time and the like existing in manual line drawing, and the present invention can realize fast and accurate line drawing operation; the present invention realizes self-adaptation to workpieces with different wall thicknesses and different curvatures, and saves a lot of costs for manufacturing tooling of different models; the present invention is light in design, simple in operation, easy to use, has good promotion and high safety; the present invention is not only applicable to thin-walled cylindrical workpieces, but also to flat plates or plates with a certain curvature; when drawing lines, the present invention can not only make the pen contact vertically with the wall surface of the workpiece, but also flexibly adjust the contact angle, which is more convenient for actual line drawing operation.
[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.
Claims
1. A thin-wall structure line drawing device with adaptive thickness and curvature, characterized in that: include: A first clamping frame (1), a second clamping frame (2), a long-shaft pen holder (26) and a pen (25), wherein the first clamping frame (1) comprises a first operating portion (101), a first combining portion (102) and a first fastening portion (103), and the second clamping frame (2) comprises a second operating portion (201), a second combining portion (202) and a second fastening portion (203), one end of the first combining portion (102) is connected to the first operating portion (101) and the other end is connected to the first fastening portion (103), one end of the second combining portion (202) is connected to the second operating portion (201) and the other end is connected to the second fastening portion (203), and the first combining portion (102) and the second combining portion (202) intersect so that the first clamping frame The first operating part (101) and the second clamping frame (2) can rotate around the intersection position, the first fastening part (103) can be connected to the outer wall of the thin-walled structure (27), and the second fastening part (203) can be connected to the inner wall of the thin-walled structure to form a clamp for the thin-walled structure, the spacing distance between the first operating part (101) and the second operating part (201) can be adjusted to adjust the spacing between the first fastening part (103) and the second fastening part (203), and then clamp the thin-walled structure according to the thickness of the thin-walled structure, the long-shaft pen holder (26) is connected to the second fastening part (203), and the pen (25) is arranged at one end of the long-shaft pen holder (26) so that the inner wall of the thin-walled structure can be drawn by the pen (25).
2. The thin-wall structure drawing device with adaptive thickness and curvature according to claim 1, characterized in that: It also includes a bolt (14) and a nut (15), wherein the bolt (14) is connected to the first operating part (101) and the second operating part (201) at the same time, and the nut (15) is threadedly connected to the bolt (14), so that the distance between the first operating part (101) and the second operating part (201) can be adjusted through the nut (15), thereby adjusting the distance between the first fastening part (103) and the second fastening part (203); and / or, The length of the second fastening portion (203) is longer than the length of the first fastening portion (103); and the long-shaft pen holder (26) can be extended or shortened relative to the second fastening portion (203).
3. The thin-walled structure drawing device with adaptive thickness and curvature according to claim 1, characterized in that: The first operating portion (101) comprises a first cross bar (111), a first vertical bar (112) and a second vertical bar (113); one end of the first cross bar (111) is connected to the first vertical bar (112), and the other end is connected to the second vertical bar (113); the first combining portion (102) comprises a first oblique bar (121) and a second oblique bar (122); the first fastening portion (103) comprises a second cross bar (131), a third vertical bar (132) and a fourth vertical bar (133); the second cross bar (131) One end of the first diagonal rod (121) is connected to the first vertical rod (112) and the other end is connected to the third vertical rod (132); one end of the second diagonal rod (122) is connected to the second vertical rod (113) and the other end is connected to the fourth vertical rod (133), so that the first operating portion (101), the first combining portion (102) and the first fastening portion (103) form a first frame structure.
4. The thin-wall structure drawing device with adaptive thickness and curvature according to claim 3, characterized in that: The second operating portion (201) comprises a third horizontal bar (211), a fifth vertical bar (212) and a sixth vertical bar (213); one end of the third horizontal bar (211) is connected to the fifth vertical bar (212), and the other end is connected to the sixth vertical bar (213); the second combining portion (202) comprises a third oblique bar (221) and a fourth oblique bar (222); the second fastening portion (203) comprises a seventh vertical bar (232) and an eighth vertical bar (233); and one end of the third oblique bar (221) is connected to the fifth vertical bar (212), and the other end is connected to the seventh vertical bar (232); one end of the fourth oblique bar (222) is connected to the sixth vertical bar (213), and the other end is connected to the eighth vertical bar (233), so that the second operating portion (201), the second combining portion (202) and the second fastening portion (203) form a second frame structure.
5. The thin-wall structure drawing device with adaptive thickness and curvature according to claim 4, characterized in that: It also includes a connecting rod (13), wherein the first inclined rod (121) is provided with a first hole, the third inclined rod (221) is provided with a second hole, the first hole and the second hole are arranged opposite to each other, the first inclined rod (121) and the third inclined rod (221) are cross-connected, the second inclined rod (122) is provided with a third hole, the fourth inclined rod (222) is provided with a fourth hole, the third hole and the fourth hole are arranged opposite to each other; the second inclined rod (122) and the fourth inclined rod (222) are cross-connected, one end of the connecting rod (13) is inserted into the first hole and the second hole, and the other end is inserted into the third hole and the fourth hole, so that the first clamping frame (1) can rotate around the connecting rod (13) and the second clamping frame (2) can rotate around the connecting rod (13).
6. The thin-wall structure marking device with adaptive thickness and curvature according to claim 5, characterized in that: The first inclined rod (121) comprises a first ring (123), the third inclined rod (221) is inserted into the first ring (123), the first hole is arranged on the first ring (123), the fourth inclined rod (222) comprises a second ring (223), the second inclined rod (122) is inserted into the second ring (223), the fourth hole is arranged on the second ring (223), the first hole is further provided with a first anti-detachment fastening structure (11) for preventing one end of the connecting rod (13) from falling off, and the fourth hole is further provided with a second anti-detachment fastening structure (12) for preventing the other end of the connecting rod (13) from falling off.
7. The thin-wall structure drawing device with adaptive thickness and curvature according to claim 6, characterized in that: A first vertical pulley (9) is provided at the lower end of the first ring (123), and a second vertical pulley (10) is also provided at the lower end of the second ring (223). The first vertical pulley (9) can be in rolling connection with the upper end of the thin-walled structure, and the second vertical pulley (10) can be in rolling connection with the upper end of the thin-walled structure, so that the line drawing device can roll along the upper end of the thin-walled structure.
8. The thin-wall structure drawing device with adaptive thickness and curvature according to any one of claims 4 to 7, characterized in that: A first bottom pulley (3) is provided on the side of the lower end of the third vertical rod (132) facing the second fastening portion (203), and a second bottom pulley (4) is provided on the side of the lower end of the fourth vertical rod (133) facing the second fastening portion (203), and the first bottom pulley (3) and the second bottom pulley (4) can respectively be in rolling contact with the outer wall of the thin-walled structure, so that the line drawing device can roll on the outer wall of the thin-walled structure; A third bottom pulley (5) is provided at the lower end of the seventh vertical rod (232) on the side facing the first fastening portion (103), a fourth bottom pulley (6) is provided at the lower end of the eighth vertical rod (233) on the side facing the first fastening portion (103), a first top pulley (7) is provided at the upper end of the seventh vertical rod (232) on the side facing the first fastening portion (103), and a second top pulley (8) is provided at the upper end of the eighth vertical rod (233) on the side facing the first fastening portion (103), and the third bottom pulley (5), the fourth bottom pulley (6), the first top pulley (7) and the second top pulley (8) can respectively be in rolling connection with the inner wall of the thin-walled structure, so that the line drawing device can roll on the outer wall of the thin-walled structure.
9. The thin-wall structure drawing device with adaptive thickness and curvature according to any one of claims 4 to 7, characterized in that: The invention also includes a first connecting rod (191), a second connecting rod (19), a third connecting rod (2211), a fourth connecting rod (22), a first sleeve (18), a second sleeve (21), a first fastener (17) and a second fastener (20), wherein one end of the first connecting rod (191) is connected to the upper end of the seventh vertical rod (232), and the other end is connected to the first sleeve (18); one end of the second connecting rod (19) is connected to the upper end of the eighth vertical rod (233), and the other end is connected to the first sleeve (18); one end of the third connecting rod (2211) is connected to the lower end of the seventh vertical rod (232), and the other end is connected to the second sleeve (21); One end of the connecting rod (22) is connected to the lower end of the eighth vertical rod (233), and the other end is connected to the second sleeve (21); the first sleeve (18) is located above the second sleeve (21), and the long-shaft pen holder (26) is respectively inserted into the first sleeve (18) and the second sleeve (21); the first fastener (17) can fix the long-shaft pen holder (26) to the first sleeve (18), and the second fastener (20) can fix the long-shaft pen holder (26) to the second sleeve (21); the depth of the pen (25) in the thin-walled structure can be adjusted by adjusting the length of the long-shaft pen holder (26) extending above the first sleeve (18).
10. The thin-wall structure drawing device with adaptive thickness and curvature according to any one of claims 1 to 9, characterized in that: It also includes a third sleeve (24) and a third fastener (23), the lower end of the long-shaft pen holder (26) is fixedly connected to the outer wall of the third sleeve (24), the pen (25) is inserted into the third sleeve (24), and the third fastener (23) can fix the pen (25) to the third sleeve (24) so as to adjust the contact between the pen (25) and the inner wall of the thin-walled structure (27) for drawing lines.
Citation Information
Patent Citations
Line drawing machine for steel plate
CN110695951A
Intersecting line scriber
CN216859708U