A spiral rack processing and manufacturing device and processing method thereof

Abstract

The invention discloses a spiral rack processing and manufacturing device and a processing method. The device includes a base platform, a fixed plate, a rotating rod, and a rotating pressure head. The base platform is provided with a semicircular area, and there are multiple fixed plates, which are radially fixed on the base platform along the semicircular line of the semicircular area as a reference to form a semicircular array. The fixed plate includes an outer shaping side edge, and the linear rack is pressed onto a supporting mold composed of the shaping side edge of the fixed plate by means of a spinning pressure head, so as to complete the processing and manufacturing of the spiral rack that meets the production requirement parameters, and the operation is convenient, the shaping effect is good, the work efficiency is improved, and the scrap rate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of rail equipment, and in particular to a device and method for manufacturing a spiral rack. Background Art

[0002] In order to facilitate people with limited mobility to go up and down stairs, a series of climbing seat systems have appeared on the market, generally including two tracks and a driving seat. One of the tracks is generally fixed with a rack to facilitate meshing and connection with the seat drive mechanism. In order to achieve the climbing seat to run smoothly along the linear rack and the spiral rack, the spiral rack must be consistent with the direction of the spiral guide rail and the spiral rack tooth shape must maintain the linear standard. The spiral rack at the turn of the corridor is a shape in which the rack rotates upward along the spatial curve. The spiral guide rail can be made by special equipment on the market, but there is currently no device for making spiral racks. The special turning track racks mentioned above have relatively high precision requirements and are very difficult to make, because their quality will directly determine the stability and reliability of the objects on the track. The manual processing and production method is not only labor-intensive and time-consuming, but also cannot guarantee quality. Summary of the invention

[0003] The purpose of the present invention is to provide a spiral rack processing and manufacturing device and a processing method, which can effectively realize the processing and manufacturing of high-precision spiral racks and fill the technical gap in this field.

[0004] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0005] A spiral rack manufacturing device comprises a base platform, a fixing plate, a rotating rod and a rotating pressing head;

[0006] The base platform is provided with a semicircular area, and a plurality of fixing plates are fixed on the base platform in a radial shape along the semicircular line of the semicircular area as a reference to form a semicircular array; the fixing plate includes an outer molding side edge, and the lower end edge of the molding side edge coincides with the semicircular line;

[0007] Furthermore, the outer molding sides of all the fixing plates are parallel.

[0008] The rotating rod is arranged above the fixed plate, and a rotating shaft seat is arranged at the center of the semicircular area. A rotating shaft I is arranged at one end of the rotating rod and connected to the rotating shaft seat. A rotating pressure head is connected to the lower end of the other end of the rotating rod. The rotating pressure head can rotate, and the lower end of the rotating pressure head is close to the lower end edge of the side of the fixed plate. Through the displacement of the rotating pressure head, the lower end of the pressure head contacts the lower end of the spur rack, so that the lower end of the spur rack is close to the lower end of the fixed plate, which is convenient for bending and shaping.

[0009] Furthermore, taking the center of the rotating shaft seat of the base platform as the dot, a semicircular area is divided equally into several parts by drawing an equilateral line, and the semicircular area is divided equally into several parts. The number of fixed plates is the same as the number of equilateral lines, so that the lower edge of each fixed plate coincides with the equilateral line at the lower end, and the lower end edge of the shaped side of the fixed plate coincides with the semicircular line. The fixed plates include fixed plate I at the starting end of the semicircular line, fixed plate II at the middle end, fixed plate III at the tail end, and several other fixed plates, wherein the shaped side of fixed plate II is perpendicular to the equilateral line, the shaped side of fixed plate I has an angle with the inner side of the equilateral line less than 90 degrees, and the fixed plate I is the one with the smallest angle with the inner side of the equilateral line among all the fixed plates in the semicircular array, the shaped side of fixed plate III has an angle with the inner side of the equilateral line greater than 90 degrees, and the fixed plate III is the one with the largest angle with the inner side of the equilateral line among all the fixed plates, and the angle between the fixed plates of the semicircular array and the inner side of the equilateral line gradually increases from fixed plate I to fixed plate III.

[0010] The rotating pressure head includes a straight roller and a conical table roller. When the rack is pressed and molded in the front half of the semicircular area, that is, the area from fixed plate I to fixed plate II, the straight roller is needed to bend the rack. When the rack is pressed and molded in the back half, that is, the area from fixed plate II to fixed plate III, it is necessary to replace it with a conical table roller to bend the rack.

[0011] Furthermore, the lower ends of the straight roller and the conical table roller are close to the lower end of the shaping side adjacent to the fixed plate, and the gap distance between the lower end of the straight roller or the conical table roller and the lower end of the adjacent fixed plate is greater than or equal to the thickness of the spur rack. The purpose is to ensure that the rotating pressure head can press the spur rack against the shaping side of the fixed plate or make the spur rack as close to the shaping side of the fixed plate as possible.

[0012] In order to improve the accuracy, a copper sleeve is installed in the shaft seat, and the surface of the shaft I of the rotating rod is finely processed to match the clearance of the copper sleeve so that the rotating rod rotates stably; the upper surface of the base platform is finely processed, and the flatness error is not greater than 0.1mm.

[0013] A method for manufacturing a spiral rack using the above spiral rack manufacturing device comprises the following steps:

[0014] (1) According to the actual production requirements of the spiral rack, the inclination angles of various parts on the inner side of the spiral rack are obtained after the spiral rack is horizontally laid down, and multiple fixing plates arranged in a semicircular shape are set on the base platform so that the inclination angle of the outer molding side of each fixing plate corresponds to the inclination angle of the inner side of the spiral rack after the spiral rack is horizontally laid down, and a molding support mold for a straight rack is formed by the molding sides of the multiple fixing plates.

[0015] (2) Fix one end of the processed spur rack on the base platform so that the spur rack is arranged between the starting end fixing plate I and the rotating pressure head;

[0016] (3) Modeling from the starting end to the middle end:

[0017] The rotary pressure head uses a straight roller, and the handle drives the rotary rod to rotate slowly. The lower end of the straight roller presses against the lower end of the outer side of the spur rack. As the rotary rod rotates, the spur rack is bent, and its inner side is close to the molding side of the adjacent fixed plate; when the rotary rod reaches the fixed plate II, the molding of this section ends;

[0018] (4) Middle to end styling:

[0019] The rotating pressure head is replaced with a conical roller, and the handle drives the rotating rod to continue to rotate slowly. The lower end of the conical roller presses against the outside of the rack. As the rotating rod rotates, the rack is bent and its inner side is close to the molding side of the adjacent fixed plate. When the rotating rod reaches fixed plate III, this section of molding is completed.

[0020] In the above step (1), the inclination angle parameter of the inner side of the spiral rack can be obtained through three-dimensional modeling software. In the modeling software, a spiral rack that matches the actual product is constructed, and the points at the lower ends of the starting point, midpoint, and end point of the spiral rack are connected to obtain the inclined plane of the spiral rack. A vertical fixed plate is constructed on the inclined plane, and the finished product is processed and manufactured according to the size of the fixed plate.

[0021] Specifically, in Figure 3 In the process, according to the design requirements, determine the lengths of line segments ab, bc, cd, and find the specific position of point b in the three-dimensional modeling; determine the lengths of line segments ef, fg, gh, and find the specific position of point h in the three-dimensional modeling; determine the lengths of line segments ij, jk, kl, and find the position of point l in the three-dimensional modeling. Use 3D sketches to draw an arc with three points. The arc is the shape trajectory of the guide rail and spiral rack. The angle between the plane M passing through the arc and the horizontal plane N is the initial inclination angle of the base platform. Draw various fixing plates vertically on the plane M. The guide rail and spiral rack after production are as follows Figure 2 The finished product is shown.

[0022] In the above step (1), a calibration line is drawn on the base platform, and with the center of the shaft seat as the dot, 20 lines of equal radius are drawn that are equal to the standard semicircle of the spiral rack when viewed from above, and the semicircle is divided into 20 equal parts. 21 fixing plates are fixed on the base platform according to the serial numbers, and the lower edge of the shaped side of the fixing plate is made to coincide with the semicircle line.

[0023] Furthermore, in step (2), one end of the spur rack is fixed by a clamping groove, and the inclination angle of the clamping groove is the same as the inclination angle of the shaped side of the fixing plate I.

[0024] Furthermore, the thickness of the fixing plate is controlled between 8-10 mm, and the 21 fixing plates can be processed into finished products according to the parameters of each fixing plate in the modeling, and then welded and fixed to the base platform.

[0025] A bisector is opposite to another fixed plate, and the bottom edge of the fixed plate is parallel to the bisector.

[0026] The length of the shaping side is greater than the maximum width of the rack and less than 1.5 times the maximum width of the rack.

[0027] To improve the molding accuracy, during the steps (3) and (4), the rotary pressing head is rotated while the rack pressed by the rotary pressing head is struck by a hammer so that the rack is completely pressed down onto the molding side of the adjacent fixed plate. In this case, a rubber hammer is preferred.

[0028] When the rotating rod reaches fixed plate II, the straight roller presses the contacting rack completely onto the shaped side of fixed plate II. When the rotating rod reaches fixed plate III, the conical roller presses the rack completely onto the shaped side of fixed plate III.

[0029] The beneficial effects of the present invention are as follows: through the mechanical device, a linear rack can be pressed onto a supporting mold formed by the shaped side edges of a fixed plate by means of a spinning press head, thereby completing the processing and manufacturing of a spiral rack that meets the production requirements and parameters, with convenient operation, good styling effect, improved work efficiency, and reduced scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the position of an embodiment of the present invention at a corridor corner;

[0032] Figure 3 for Figure 2 Schematic diagram of the position of the base platform in 3D mapping software.

[0033] 1-base platform, 2-rotating rod, 3-rotating shaft I, 4-rotating pressure head, 5-spur rack, 6-clamping groove, 7-bisector line, 21-fixed plate I, 22-fixed plate II, 23-fixed plate III. DETAILED DESCRIPTION

[0034] Combined with the above Figure 1-3 , the case is described in detail below: A spiral rack manufacturing device, which includes a base platform 1, a fixed plate, a rotating rod 2, and a rotating pressure head 4;

[0035] The base platform 1 is provided with a semicircular area, and there are multiple fixed plates, preferably 21 in this case, which are radially fixed on the base platform along the semicircular line of the semicircular area as a reference to form a semicircular array; the fixed plate includes an outer molding side edge, and the lower end of the molding side edge coincides with the semicircular line;

[0036] Furthermore, the outer molding sides of all the fixed plates are parallel because in the modeling software, the actual supporting mold of the spiral rack is in a vertical state.

[0037] The rotating rod 2 is arranged above the fixed plate, and a rotating shaft seat is arranged at the center of the semicircular area. A rotating shaft I3 is arranged at one end of the rotating rod and connected to the rotating shaft seat. The lower end of the other end of the rotating rod 2 is connected to a rotating pressure head 4. The rotating pressure head 4 can rotate, and the lower end of the rotating pressure head is close to the lower end edge of the side of the fixed plate. Through the displacement of the rotating pressure head, the lower end of the pressure head contacts the lower end of the spur rack 5, so that the lower end of the spur rack 5 is close to the lower end of the fixed plate, which is convenient for bending and shaping.

[0038] Furthermore, taking the center of the rotating shaft seat of the base platform 1 as the dot, draw a semicircular area bisector to divide the semicircular area into several equal parts, the number of fixed plates is the same as the number of bisectors, so that the lower edge of each fixed plate coincides with the bisector at the lower end, and the lower end edge of the shaped side of the fixed plate coincides with the semicircular line, the fixed plate includes a fixed plate I at the starting end of the semicircular line, a fixed plate II at the middle end, a fixed plate III at the tail end, and several other fixed plates, wherein the shaped side of the fixed plate II coincides with the shaped side of the fixed plate where The bisector is vertical, and the angle between the shaped side of fixed plate I and the inner side of the bisector is less than 90 degrees. Fixed plate I is the one with the smallest angle with the inner side of the bisector among all the fixed plates of the semicircular array. The angle between the shaped side of fixed plate III and the inner side of the bisector is greater than 90 degrees. Fixed plate III is the one with the largest angle with the inner side of the bisector among all the fixed plates. The angles between the fixed plates of the semicircular array and the inner side of the bisector gradually increase from fixed plate I to fixed plate III.

[0039] The rotating pressure head 4 includes a straight roller and a conical table roller. When the rack is pressed and molded in the front half of the semicircular area, that is, the area from fixed plate I to fixed plate II, a straight roller is needed to bend the rack. When the rack is pressed and molded in the back half, that is, the area from fixed plate II to fixed plate III, a conical table roller needs to be used to bend the rack.

[0040] Furthermore, the lower ends of the straight roller and the conical table roller are close to the lower end of the shaping side adjacent to the fixed plate, and the gap distance between the lower end of the straight roller or the conical table roller and the lower end of the adjacent fixed plate is greater than or equal to the thickness of the spur rack. The purpose is to ensure that the rotating pressure head can press the spur rack against the shaping side of the fixed plate or make the spur rack as close to the shaping side of the fixed plate as possible.

[0041] In order to improve the accuracy, a copper sleeve is installed in the shaft seat, and the surface of the shaft I of the rotating rod is finely processed to match the clearance of the copper sleeve so that the rotating rod rotates stably; the upper surface of the base platform is finely processed, and the flatness error is not greater than 0.1mm.

[0042] A method for manufacturing a spiral rack using the above spiral rack manufacturing device comprises the following steps:

[0043] (1) According to the actual production requirements of the spiral rack, the inclination angles of various parts on the inner side of the spiral rack are obtained after the spiral rack is horizontally laid down, and multiple fixing plates arranged in a semicircular shape are set on the base platform so that the inclination angle of the outer molding side of each fixing plate corresponds to the inclination angle of the inner side of the spiral rack after the spiral rack is horizontally laid down, and a molding support mold for a straight rack is formed by the molding sides of the multiple fixing plates.

[0044] (2) Fix one end of the processed spur rack on the base platform so that the spur rack is arranged between the starting end fixing plate I and the rotating pressure head;

[0045] (3) Modeling from the starting end to the middle end:

[0046] The rotary pressure head uses a straight roller, and the handle drives the rotary rod to rotate slowly. The lower end of the straight roller presses against the lower end of the outer side of the spur rack. As the rotary rod rotates, the spur rack is bent, and its inner side is close to the molding side of the adjacent fixed plate; when the rotary rod reaches the fixed plate II, the molding of this section ends;

[0047] (4) Middle to end styling:

[0048] The rotating pressure head is replaced with a conical roller, and the handle drives the rotating rod to continue to rotate slowly. The lower end of the conical roller presses against the outside of the rack. As the rotating rod rotates, the rack is bent and its inner side is close to the molding side of the adjacent fixed plate. When the rotating rod reaches fixed plate III, this section of molding is completed.

[0049] In the above step (1), the inclination angle parameter of the inner side of the spiral rack can be obtained through three-dimensional modeling software. In the modeling software, a spiral rack that matches the actual product is constructed, and the points at the lower ends of the starting point, midpoint, and end point of the spiral rack are connected to obtain the inclined plane of the spiral rack. A vertical fixed plate is constructed on the inclined plane, and the finished product is processed and manufactured according to the size of the fixed plate.

[0050] Specifically, in the modeling and drawing software, according to the design requirements, the coordinate positions of the lower ends of the sides of the fixed plates I, II, and III are determined in turn, and a circular arc is drawn at three points using a 3D sketch. The circular arc is the shape trajectory of the spiral rack. The angle between the plane passing through the circular arc and the horizontal plane is the initial inclination angle of the base platform, and various fixed plates are drawn vertically on the plane.

[0051] In the above step (1), a calibration line is drawn on the base platform, and with the center of the shaft seat as the dot, 20 lines of equal radius are drawn that are equal to the standard semicircle of the spiral rack when viewed from above, and the semicircle is divided into 20 equal parts. 21 fixing plates are fixed on the base platform according to the serial numbers, and the lower edge of the shaped side of the fixing plate is made to coincide with the semicircle line.

[0052] Furthermore, in step (2), one end of the spur rack is fixed by a clamping groove, and the inclination angle of the clamping groove is the same as the inclination angle of the shaped side of the fixing plate I.

[0053] Furthermore, the thickness of the fixing plate is controlled between 8-10 mm, and the 21 fixing plates can be processed into finished products according to the parameters of each fixing plate in the modeling, and then welded and fixed to the base platform.

[0054] A bisector is opposite to another fixed plate, and the bottom edge of the fixed plate is parallel to the bisector.

[0055] The length of the shaping side is greater than the maximum width of the rack and less than 1.5 times the maximum width of the rack.

[0056] To improve the molding accuracy, during the steps (3) and (4), the rotary pressing head is rotated while the rack pressed by the rotary pressing head is struck by a hammer so that the rack is completely pressed down onto the molding side of the adjacent fixed plate. In this case, a rubber hammer is preferred.

[0057] When the rotating rod reaches fixed plate II, the straight roller presses the contacting rack completely onto the shaped side of fixed plate II. When the rotating rod reaches fixed plate III, the conical roller presses the rack completely onto the shaped side of fixed plate III.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in the technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as the scope of protection of the present invention without paying creative labor.

Claims

1. A spiral rack processing and manufacturing device, characterized in that: It includes a base platform, a fixing plate, a rotating rod, and a rotating pressure head; The base platform is provided with a semicircular area, and a plurality of fixing plates are fixed on the base platform in a radial shape along the semicircular line of the semicircular area as a reference, forming a semicircular array; the fixing plate includes an outer molding side edge, and the lower end edge of the molding side edge coincides with the semicircular line; The rotating rod is arranged above the fixed plate, a rotating shaft seat is arranged at the center of the semicircular area, a rotating shaft I is arranged at one end of the rotating rod and connected to the rotating shaft seat, and a rotating pressure head is connected to the lower end of the other end of the rotating rod. The rotating pressure head can rotate, and the lower end of the rotating pressure head is close to the lower end edge of the side of the fixed plate; The outer molding sides of all fixed plates are parallel; Taking the center of the rotating shaft seat of the base platform as the dot, draw an equilateral line of the semicircular area to divide the semicircular area into several parts. The number of fixed plates is the same as the number of equilateral lines, so that the lower edge of each fixed plate coincides with the equilateral line at the lower end, and the lower end edge of the shaped side of the fixed plate coincides with the semicircular line. The fixed plates include fixed plate I at the starting end of the semicircular line, fixed plate II at the middle end, fixed plate III at the tail end, and several other fixed plates, wherein the shaped side of fixed plate II is perpendicular to the equilateral line, the angle between the shaped side of fixed plate I and the inner side of the equilateral line is less than 90 degrees, and the fixed plate I is the one with the smallest angle with the inner side of the equilateral line among all the fixed plates in the semicircular array, the angle between the shaped side of fixed plate III and the inner side of the equilateral line is greater than 90 degrees, and the fixed plate III is the one with the largest angle with the inner side of the equilateral line among all the fixed plates, and the angle between the fixed plates of the semicircular array and the inner side of the equilateral line gradually increases from fixed plate I to fixed plate III.

2. The spiral rack processing and manufacturing device according to claim 1 is characterized in that: The rotating pressure head includes a straight roller and a conical table roller. When the rack is pressed and molded in the front half of the semicircular area, that is, the area from fixed plate I to fixed plate II, the straight roller is needed to bend the rack. When the rack is pressed and molded in the back half, that is, the area from fixed plate II to fixed plate III, it is necessary to replace it with a conical table roller to bend the rack.

3. The spiral rack processing and manufacturing device according to claim 1, characterized in that: A copper sleeve is installed in the rotating shaft seat, and the surface of the rotating shaft I of the rotating rod is finely processed to match the clearance of the copper sleeve.

4. A method for processing a helical rack using the helical rack processing and manufacturing device according to claim 2 or 3, characterized in that: It includes the following steps: (1) According to the actual production requirements of the spiral rack, the inclination angles of various parts on the inner side of the spiral rack after it is horizontally laid down are obtained, and multiple fixing plates arranged in a semicircular shape are arranged on the base platform, so that the inclination angle of the outer molding side of each fixing plate corresponds to the inclination angle of the inner side of the spiral rack after it is horizontally laid down, and a molding support mold for a straight rack is formed by the molding sides of the multiple fixing plates; (2) Fix one end of the processed spur rack on the base platform so that the spur rack is arranged between the starting end fixing plate I and the rotating pressure head; (3) Modeling from the starting end to the middle end: The rotary pressure head uses a straight roller, and the handle drives the rotary rod to rotate slowly. The lower end of the straight roller presses against the lower end of the outer side of the spur rack. As the rotary rod rotates, the spur rack is bent, and its inner side is close to the molding side of the adjacent fixed plate; when the rotary rod reaches the fixed plate II, the molding of this section ends; (4) Middle to end styling: The rotating pressure head is replaced with a conical roller, and the handle drives the rotating rod to continue to rotate slowly. The lower end of the conical roller presses against the outside of the rack. As the rotating rod rotates, the rack is bent and its inner side is close to the molding side of the adjacent fixed plate. When the rotating rod reaches fixed plate III, this section of molding is completed.

5. The method for processing a helical rack according to claim 4, characterized in that: In the above step (1), the inclination angle parameters of the inner side of the spiral rack are obtained through three-dimensional modeling software. In the modeling software, a spiral rack that matches the actual product is constructed, and the points at the lower ends of the starting point, midpoint, and end point of the spiral rack are connected to obtain the inclined plane of the spiral rack. A vertical fixed plate is constructed on the inclined plane, and the finished product is processed and manufactured according to the size of the fixed plate.

6. The method for processing a helical rack according to claim 4, characterized in that: In the above step (1), a calibration line is drawn on the base platform, and with the center of the shaft seat as the dot, 20 lines of equal radius are drawn that are equal to the standard semicircle of the spiral rack when viewed from above, and the semicircle is divided into 20 equal parts. 21 fixing plates are fixed on the base platform according to the serial numbers, and the lower edge of the shaped side of the fixing plate is made to coincide with the semicircle line.

7. The method for processing a helical rack according to claim 4, characterized in that: In step (2), one end of the spur rack is fixed by a clamping groove, and the inclination angle of the clamping groove is the same as the inclination angle of the shaped side of the fixing plate I.

8. The method for processing a helical rack according to claim 4, characterized in that: During steps (3) and (4), the rotary pressing head is rotated while the hammer is used to strike the rack pressed by the rotary pressing head, so that the rack is completely pressed down onto the molding side of the adjacent fixed plate.

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