Columnar product test platform

Abstract

A columnar product testing platform relates to the technical field of avionic product testing, can complete various specified actions required by columnar product testing, reliably fixes a columnar product on a control console, has three-degree-of-freedom motion of pitching, orientation and rolling, is provided with a locking device and an adjusting mechanism for each degree of freedom, can translate along a longitudinal axis, and can be used for testing the columnar product. The cylindrical product can be conveniently and rapidly adjusted to the needed posture and position, testing of related parameters of a certain type of cylindrical product is achieved, and the device has the advantages of being safe, convenient and rapid to operate, capable of being matched with testing equipment very smoothly to complete various testing work, high in working efficiency and high in reliability, meeting the use requirement and the like, and has wide application prospects. The cylindrical product testing platform is simple and convenient in structure operation, high in adjusting precision, small in occupied space, free of servo control and low in cost for testing, and is designed on the basis of the requirement, and related testing experiments and the like can be completed without using a computer system and a servo mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of aviation electronic product testing, and in particular to a columnar product testing platform. Background Art

[0002] The columnar product test platform is mainly used to cooperate with the test equipment to test the relevant parameters of the columnar product. When testing the columnar product, the columnar product test platform must not only meet the test requirements, but also be reliable and easy to operate. At the same time, it is necessary to adjust the position and angle of the columnar product up and down, left and right.

[0003] The columnar product test platform currently used usually uses guide rails, screw mechanisms, reduction mechanisms, stepping or servo motors in conjunction with control computers to control the three-degree-of-freedom motion of pitch, azimuth, and roll required by the columnar products on the test platform, to adjust the position and azimuth of the columnar products, and to test the relevant parameters of the columnar products in conjunction with the test equipment. This type of test platform is suitable for assembly line testing, automation, and large-scale testing operations, but due to the use of control computers and servo systems, this type of test platform has problems such as complex overall structure, large space occupation, and high cost.

[0004] In order to develop a certain columnar product, it is necessary to test its performance on a laboratory test platform. Since the columnar product is produced in single pieces and small batches during the development stage, it is necessary to use a columnar product testing platform with a simple structure, high adjustment accuracy, small space occupation, no need for servo control, and low cost for testing.

[0005] Therefore, how to provide a columnar product testing platform with simple structure, high adjustment accuracy, small space occupation and low cost has become a long-term technical demand of technical personnel in this field. Summary of the invention

[0006] In order to overcome the shortcomings of the background technology, the present invention provides a columnar product testing platform. The present invention can complete various prescribed actions required for columnar product testing, reliably fix the columnar product on the console, and has three degrees of freedom of pitch, azimuth, and roll. Each degree of freedom has a locking device and an adjustment mechanism, and can move horizontally along the longitudinal axis. The columnar product can be easily and quickly adjusted to the desired posture and position, thereby realizing the testing of relevant parameters of a certain type of columnar product.

[0007] In order to achieve the above-mentioned invention object, the present invention adopts the following technical solution: A columnar product testing platform comprises a front supporting frame, a rolling motion mechanism, a platform, an azimuth motion mechanism, a guide rail, a guide rail mounting platform and a platform body, wherein an azimuth motion mechanism is arranged on the top of the platform body, a guide rail mounting platform is arranged on the top of the azimuth motion mechanism, at least two parallel guide rails are arranged on the top of the guide rail mounting platform, sliders on the two guide rails are respectively connected to the platform, a front supporting frame and a rolling motion mechanism are arranged on the top of the platform, a horizontal movement limit assembly for limiting the sliding of the platform is arranged on the platform on the right side of the rolling motion mechanism, and a columnar product fixing hole on the front supporting frame is coaxially arranged with the columnar product fixing hole on the rolling motion mechanism.

[0008] The columnar product testing platform, the front support frame includes an upper left support, an upper right support, an upper movable support, a ball bearing, a lower movable support, an adjusting screw, a floating support, a connecting rod, a guide column, an adjusting screw, a translation limit block, a lower support and a live knot bolt. The lower support is fixedly connected to the upper surface of the platform by bolts, and an upwardly concave groove is provided on the lower end surface of the lower support. Plugs are respectively provided at the left and right ends of the groove, and adjustment screws are respectively threaded in the screw holes on the two plugs. A translation limit block that moves left and right is provided in the groove between the two plugs. The ends of the adjusting screws respectively abut against the left and right ends of the translation limit block, at least two guide column lower limit holes are arranged at intervals on the upper side of the translation limit block, a guide column is respectively inserted into each guide column lower limit hole, and the upper end of each guide column is respectively inserted into the guide column upper limit hole on the lower side of the floating support, the lower part of the floating support is hinged to the middle part of the connecting rod through a rotating pin, the left end of the connecting rod is hinged to the lower half support through a fixed pin, the right end of the connecting rod is suspended and hinged to the lower end of the adjusting screw through a pin, and the arc at the upper end of the floating support At least three ball bearings are arranged at intervals on the profile surface, and the outer edge surface of each ball bearing is higher than the arc surface of the upper end of the floating support. An upper left support and an upper right support are arranged above the lower support. The left end of the upper left support is connected to the left end of the lower support through a live bolt, the right end of the upper left support is hinged to the left end of the upper right support through a pin, and the right end of the upper right support is hinged to the upper end of the adjusting screw and the right end of the lower support through a pin. At least one ball bearing is arranged on the inner edge surface of the upper left support and the upper right support, and the outer edge of each ball bearing is The surfaces are respectively higher than the inner arc surfaces of the upper left support and the upper right support. A circular hole is formed in the middle of the lower support, the upper left support and the upper right support after being combined. An upper movable support and a lower movable support are arranged in the circular hole. The left ends of the upper movable support and the lower movable support are hinged by a swivel pin, and the right ends of the upper movable support and the lower movable support are connected by engaging screws to form an annular movable support. The outer edge surface of the annular movable support abuts against a plurality of ball bearings, and a columnar product to be tested is inserted into the inner hole in the middle of the annular movable support.

[0009] The columnar product testing platform described herein is provided with an annular groove on the end face of the annular movable support, and a plurality of positioning holes are provided at intervals at the bottom of the annular groove, an anti-rotation pin is provided in one of the positioning holes, and the outer end of the anti-rotation pin is connected to the lower half support; a cross-roller linear guide is provided under the lower half support, and the cross-roller linear guide is connected to the platform, and a fine-tuning limit assembly for limiting the movement of the lower half support is provided on the bottom plate of the lower half support.

[0010] The columnar product testing platform, the rolling motion mechanism includes a short connecting sleeve, a hollow rotating shaft, a roller bearing, a locking pin mounting plate, a long connecting sleeve, a support and a rotating positioning assembly, two roller bearings are arranged in the mounting hole at the upper end of the support, and a bearing cover A and a bearing cover B are respectively fixed at the two open ends of the mounting hole by screws A, the bearing cover A and the bearing cover B press the two roller bearings into the mounting hole, a hollow rotating shaft is inserted in the inner ring of the two roller bearings, a spacer is respectively arranged between the outer edge surface of the hollow rotating shaft and the inner edge surfaces of the bearing cover A and the bearing cover B, a positioning shoulder is arranged at one end of the outer edge surface of the hollow rotating shaft, and one side of the positioning shoulder corresponds to the shaft The bearing cover B and the other side of the positioning shoulder are connected to the long connecting sleeve by bolts. A plurality of anti-rotation positioning grooves are arranged at intervals on the outer edge surface of the positioning shoulder. An external thread is arranged at the other end of the outer edge surface of the hollow rotating shaft. At least one locking nut is sleeved on the external thread. The locking nut cooperates with the positioning shoulder to prevent the hollow rotating shaft from moving in the inner rings of the two roller bearings. The end of the hollow rotating shaft outside the locking nut is connected to the short connecting sleeve by a screw B. A locking pin mounting plate is arranged on the side of the support, and a rotation positioning assembly is arranged on the locking pin mounting plate. The end of the locking pin in the rotation positioning assembly corresponds to the anti-rotation positioning groove on the positioning shoulder of the hollow rotating shaft.

[0011] The cylindrical product testing platform, the rotation positioning assembly includes a dividing positioning pin assembly housing, a spring, a locking pin, a handle, a handle mounting pin, a limit pin, a sliding sleeve and a connecting bolt, the dividing positioning pin assembly housing is fixed to the locking pin mounting plate by connecting bolts, a three-level stepped hole with a larger opening at the lower end and a smaller opening at the upper end is provided in the middle of the dividing positioning pin assembly housing, a sliding sleeve is inserted in the inner hole with a larger aperture at the lower end, a locking pin is inserted in the inner hole of the sliding sleeve, a guide boss is provided on the outer edge surface of the locking pin, the outer edge surface of the guide boss contacts the inner hole wall of the sliding sleeve, a spring is sleeved on the outer edge surface of the locking pin above the guide boss, and the lower end of the spring abuts against the upper end surface of the guide boss, The upper end of the spring abuts against the upper end surface of the middle diameter of the stepped hole in the indexing and locating pin assembly housing, and a downwardly concave groove is provided on the upper end surface of the indexing and locating pin assembly housing, and the two end ends of the groove respectively extend to the outer edge surface of the indexing and locating pin assembly housing, and two short grooves are provided at the bottom of the groove, and the two short grooves are arranged at 180° and are respectively arranged at the two end ends of the groove, and a limit pin is provided in the groove, and the limit pin moves in the groove and the short groove, and the limit pin is arranged on the outer edge surface of the locking pin, and a handle is provided on the outer edge surface of the locking pin above the indexing and locating pin assembly housing through the handle mounting pin, and the locking pin is driven by the handle to extend and retract around the indexing and locating pin assembly housing.

[0012] The columnar product testing platform, the azimuth motion mechanism is a slewing bearing.

[0013] The columnar product testing platform described in claim 1, wherein the guide rail mounting platform comprises an upper mounting plate, a frame, a lower mounting plate, a guide rail mounting platform rotation positioning assembly, a guide rail mounting platform rotation positioning assembly mounting plate, connecting screws, eyebolts, handrails, L-shaped limit plates and L-shaped limit plate connecting screws. An upper mounting plate and a lower mounting plate are respectively arranged on the upper and lower surfaces of the frame, and arc-shaped bosses extending outward are respectively arranged on both sides of the middle portion of the lower mounting plate, and a plurality of bolt connecting holes are respectively arranged on the two arc-shaped bosses, and connecting bolts connected to the azimuth motion mechanism are respectively inserted in each bolt connecting hole, and a guide rail mounting platform rotation positioning assembly mounting plate is fixedly provided with a connecting screw on one of the arc-shaped bosses, and a guide rail mounting platform rotation positioning assembly is arranged on the guide rail mounting platform rotation positioning assembly mounting plate, and eyebolts are respectively arranged at the four corners above the upper mounting plate, and an handrail is arranged on the right end of the frame, and an L-shaped limit plate is arranged at the bottom of the right side of the lower mounting plate through the L-shaped limit plate connecting screw.

[0014] The columnar product testing platform has four corners below the platform body provided with screw adjustment mechanisms, and a graduation positioning pin assembly is provided on the right side above the platform body.

[0015] The columnar product testing platform has a counterweight disposed at the bottom of the platform body.

[0016] The columnar product testing platform, the spiral adjustment mechanism includes a screw rod, an upper connecting plate, a screw and a connecting seat, the lower end of the screw rod is provided with a ball head, the upper part of the ball head is sleeved with the upper connecting plate, the lower part of the ball head is inserted into the arc groove of the connecting seat, and the connecting seat and the upper connecting plate are fixed together by screws.

[0017] By adopting the above technical solution, the present invention has the following advantages: The present invention can complete various prescribed actions required for testing columnar products, reliably fix the columnar products on the control console, and has three degrees of freedom of pitch, azimuth, and roll. Each degree of freedom has a locking device and an adjustment mechanism, and can move horizontally along the longitudinal axis. The columnar product can be conveniently and quickly adjusted to a desired posture and position, and the test of relevant parameters of a certain type of columnar product can be realized. The present invention is safe, convenient, and fast to operate, and can very smoothly cooperate with the testing equipment to complete various testing tasks. It has high work efficiency and strong reliability, and meets the use requirements. The present invention has a columnar product testing platform with simple structure and operation, high adjustment accuracy, small space occupation, no need for servo control, and low cost for testing. The present invention is designed based on this demand and can complete relevant testing experiments without using a computer system or a servo mechanism (servo motor, reduction mechanism, feedback measurement element, etc.). BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the front support frame in the present invention; Figure 3 for Figure 2 A schematic cross-sectional structure diagram of ; Figure 4 It is a schematic diagram of the three-dimensional structure of the rolling motion mechanism in the present invention; Figure 5 for Figure 4 A schematic cross-sectional structure diagram of ; Figure 6 It is a structural schematic diagram of the rotation positioning assembly in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the azimuth motion mechanism in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the guide rail mounting platform in the present invention; Fig. 9 for Figure 8 Schematic diagram of the main structure; Fig.10 for Figure 8 Schematic diagram of the left view structure; Fig.11 It is a schematic diagram of the three-dimensional structure of the platform body in the present invention; Fig.12 It is a structural schematic diagram of the spiral adjustment mechanism in the present invention; In the figure: 1, front support frame; 101, upper left support; 102, upper right support; 103, upper movable support; 104, ball bearing; 105, lower movable support; 106, adjustment screw; 107, floating support; 108, connecting rod; 109, guide column; 110, adjustment screw; 111, Translation limit block; 112, lower half support; 113, live bolt; 114, anti-rotation pin; 115, rotating pin; 116, fixed pin; 117, cross roller linear guide; 118, connecting pin; 119, rotating pin; 120, small positioning pin; 121, joint screw; 122, positioning hole; 2, rolling motion mechanism; 201, screw A; 202, bearing cover A; 203, locking nut; 204, short connecting sleeve; 205, screw B; 206, hollow rotating shaft; 207, roller bearing; 208, bearing cover B; 209, locking pin mounting plate; 210, indexing positioning pin assembly housing; 211, spring; 212, locking pin; 213, handle; 214, spacer; 215, long connecting sleeve; 216, support; 217, hand Handle mounting pin; 218, limit pin; 219, sliding sleeve; 220, connecting bolt; 3, platform; 4, azimuth movement mechanism; 401, positioning assembly mounting hole; 5, guide rail; 6, guide rail mounting platform; 601, upper mounting plate; 602, frame; 603, lower mounting plate; 604, guide rail mounting platform rotation positioning assembly; 605, guide rail mounting platform rotation positioning assembly mounting plate; 606, connecting screw; 607, lifting eye screw; 608, handrail; 609, L-type limit plate; 610, L-type limit plate connecting screw; 7, platform body; 8, spiral adjustment mechanism; 801, screw; 802, upper connecting plate; 803, screw; 804, connecting seat; 9, counterweight; 10, horizontal movement limit assembly; 11, fine-tuning limit assembly; 12, indexing positioning pin assembly. DETAILED DESCRIPTION

[0019] The present invention can be explained in more detail by the following examples, but the present invention is not limited to the following examples; In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The present invention is designed based on the requirements of the background technology (pure mechanical test platform), and can complete relevant test experiments without using a computer system or a servo mechanism (servo motor, reduction mechanism, feedback measurement element, etc.).

[0022] The present invention is a mechanical structure, and has the advantages of high adjustment accuracy, small occupied space, low cost, etc.

[0023] Combined with Figures 1 to 12 , a columnar product testing platform according to the present invention, such as Figure 1 As shown, it includes a front support frame 1, a rolling motion mechanism 2, a platform 3, an azimuth motion mechanism 4, a guide rail 5, a guide rail mounting platform 6 and a platform body 7, wherein the azimuth motion mechanism 4 is arranged on the platform body 7, wherein the guide rail mounting platform 6 is arranged on the azimuth motion mechanism 4, wherein at least two parallel guide rails 5 are arranged at intervals on the guide rail mounting platform 6, wherein the sliders on the two guide rails 5 are respectively connected to the platform 3, wherein the front support frame 1 and the rolling motion mechanism 2 are arranged at intervals on the platform 3, wherein a horizontal movement limiting assembly 10 for limiting the sliding of the platform 3 is arranged on the platform 3 on the right side of the rolling motion mechanism 2, and wherein the columnar product fixing hole on the front support frame 1 is coaxially arranged with the columnar product fixing hole on the rolling motion mechanism 2.

[0024] When implementing, Figure 2 , 3As shown, the front support frame 1 includes an upper left support 101, an upper right support 102, an upper movable support 103, a ball bearing 104, a lower movable support 105, an adjusting screw 106, a floating support 107, a connecting rod 108, a guide column 109, an adjusting screw 110, a translation limit block 111, a lower support 112 and a live bolt 113. The lower support 112 is fixedly connected to the platform 3 by bolts, and a groove recessed upward is provided on the lower end surface of the lower support 112, and plugs are respectively provided at the left and right ends of the groove. The screw holes on the two plugs are respectively threaded with adjusting screws 110, and a translation limit block 111 that moves left and right is provided in the groove between the two plugs. The ends of the two adjusting screws 110 respectively abut against the left and right ends of the translation limit block 111. At least two guide column lower limit holes are arranged at intervals on the upper side of the translation limit block 111, and a guide column 109 is inserted into each guide column lower limit hole, and the upper end of each guide column 109 is inserted into the guide column upper limit hole on the lower side of the floating support 107, respectively. The lower part of the floating support 107 is hinged to the middle part of the connecting rod 108 through a rotating pin 115, and the left end of the connecting rod 108 is hinged to the lower half support 112 through a fixed pin 116. The right end of the connecting rod 108 is suspended and hinged to the lower end of the adjusting screw 106 through a pin. At least three ball bearings 104 are arranged at intervals on the arc surface of the upper end of the floating support 107, and the outer edge surface of each ball bearing 104 is higher than the arc surface of the upper end of the floating support 107. When implemented, Figure 3 As shown, the inner ring of the ball bearing 104 is fixed on the floating bearing 107 through the bearing fixing shaft; an upper left bearing 101 and an upper right bearing 102 are arranged above the lower bearing 112, the left end of the upper left bearing 101 is connected to the left end of the lower bearing 112 through a live bolt 113, the right end of the upper left bearing 101 is hinged to the left end of the upper right bearing 102 through a connecting pin 118, and the right end of the upper right bearing 102 is hinged to the upper end of the adjusting screw 106 and the right end of the lower bearing 112 through a pin shaft, at least one ball bearing 104 is respectively arranged on the inner edge surfaces of the upper left bearing 101 and the upper right bearing 102, and the outer edge surface of each ball bearing 104 is respectively higher than the inner arc surface of the upper left bearing 101 and the upper right bearing 102. When implemented, as shown in FIG. Figure 3As shown, the inner ring of the ball bearing 104 is fixed on the upper left support 101 and the upper right support 102 through the bearing fixing shaft; the lower support 112, the upper left support 101 and the upper right support 102 are combined to form a circular hole in the middle, and the upper movable support 103 and the lower movable support 105 are arranged in the circular hole. The left ends of the upper movable support 103 and the lower movable support 105 are hinged by a rotating pin 119, and the right ends of the upper movable support 103 and the lower movable support 105 are connected by a joint screw 121. After that, a circular ring-shaped movable support is formed. During implementation, in order to ensure the accuracy of the upper movable support 103 and the lower movable support 105 when they are connected by the coupling screws 121, a small positioning pin 120 is set on the upper movable support 103 or the lower movable support 105, and then a small positioning pin hole corresponding to the small positioning pin 120 is set on the lower movable support 105 or the upper movable support 103; the outer edge surface of the circular ring-shaped movable support is in contact with a plurality of ball bearings 104, and the columnar product to be tested is inserted into the inner hole in the middle of the circular ring-shaped movable support.

[0025] During implementation, an annular groove is provided on the end face of the annular movable support, and a plurality of positioning holes 122 are provided at intervals on the bottom of the annular groove. An anti-rotation pin 114 is provided in one of the positioning holes 122, and the outer end of the anti-rotation pin 114 is connected to the lower half support 112; a cross-roller linear guide 117 is provided under the lower half support 112, and the cross-roller linear guide 117 is connected to the platform 3, and a fine-tuning limit assembly 11 for limiting the movement of the lower half support 112 is provided on the bottom plate of the lower half support 112.

[0026] When implementing, Figure 1 , 3 As shown, in order to achieve fine adjustment of the position of the front support frame 1, a cross roller linear guide 117 is provided between the bottom of the lower half support 112 and the top of the platform 3 (during implementation, the cross roller linear guide 117 is a standard part and can be directly purchased and used, such as the VR series cross roller guide produced by Shanghai Benming Precision Machinery Equipment Co., Ltd.). The provision of the cross roller linear guide 117 enables the front support frame 1 to achieve a small range of movement relative to the platform 3, which is convenient for the installation of the columnar product to be tested. After the cross roller linear guide 117 is provided between the bottom of the lower half support 112 and the top of the platform 3, it is necessary to provide a fine adjustment limit assembly 11 on the bottom plate of the lower half support 112. After the front support frame 1 is adjusted to the predetermined position, the position of the front support frame 1 is locked by the fine adjustment limit assembly 11 (regarding the specific structure of the fine adjustment limit assembly 11, it is consistent with the structure of the rotation positioning assembly on the rolling motion mechanism 2, and no detailed description is given here).

[0027] Further, if Figure 1 , 4As shown in Figure 5, the rolling motion mechanism 2 includes a short connecting sleeve 204, a hollow rotating shaft 206, a roller bearing 207, a locking pin mounting plate 209, a long connecting sleeve 215, a support 216 and a rotation positioning assembly. Two roller bearings 207 are arranged in the mounting hole at the upper end of the support 216. Bearing caps A202 and bearing caps B208 are fixed to the two open ends of the mounting hole by screws A201 respectively. The bearing caps A202 and bearing caps B208 press the two roller bearings 207 into the mounting hole. The hollow rotating shaft 206 is inserted into the inner rings of the two roller bearings 207. Spacer sleeves 214 are respectively arranged between the outer edge surface of the hollow rotating shaft 206 and the inner edge surfaces of the bearing caps A202 and the bearing caps B208. A positioning shoulder is arranged at one end of the outer edge surface of the hollow rotating shaft 206, and one side of the positioning shoulder corresponds to the bearing cap B208. The other side of the positioning shoulder is connected to a long connecting sleeve 215 by bolts, and a plurality of anti-rotation positioning grooves are arranged at intervals on the outer edge surface of the positioning shoulder. An external thread is arranged at the other end of the outer edge surface of the hollow rotating shaft 206, and at least one locking nut 203 is sleeved on the external thread. The locking nut 203 cooperates with the positioning shoulder to prevent the hollow rotating shaft 206 from moving in the inner rings of the two roller bearings 207. During implementation, a protective cover is arranged on the periphery of the locking nut 203, and the end of the hollow rotating shaft 206 outside the locking nut 203 is connected to the short connecting sleeve 204 by a screw B205. A locking pin mounting plate 209 is arranged on the side of the support 216, and a rotation positioning assembly is arranged on the locking pin mounting plate 209. The end of the locking pin 212 in the rotation positioning assembly corresponds to the anti-rotation positioning groove on the positioning shoulder of the hollow rotating shaft 206.

[0028] During implementation, when the columnar product to be tested is connected to the long connecting sleeve 215, a plurality of sets of wedge pin assemblies are arranged between the outer edge surface of the columnar product to be tested and the inner edge surface of the inner hole of the long connecting sleeve 215, and the columnar product to be tested is fixed in the inner hole of the long connecting sleeve 215 by the plurality of sets of wedge pin assemblies. During implementation, the wedge pin assembly includes a positive wedge (thin sheet, one side of the long side is inclined at about +3°), a reverse wedge (thin sheet, one side of the long side is inclined at -3°, which is offset after cooperation with the positive wedge) and a straight wedge (thin sheet). The +3° and -3° long side bevels are in contact with each other and can slide relative to each other, so that the width of the positive wedge, reverse wedge and straight wedge can be changed after being fitted, which is used to connect the columnar product to be tested and the long connecting sleeve 215.

[0029] When implementing, Figure 1 , 4As shown in Figures 5 and 6, the hollow rotating shaft 206 can rotate in the mounting hole at the upper end of the support 216 through the roller bearing 207. The upper end of the support 216 is a mounting hole, and the mounting hole on the support 216 is sequentially installed with a spacer sleeve 214, two roller bearings 207, and a spacer sleeve 214. The bearing cap A202 and the bearing cap B208 are respectively fixed on the end surface of the mounting hole of the support 216 by screws A201 at both ends, and the roller bearing 207 and the inner hole of the spacer sleeve 214 are installed in the hollow rotating shaft 206. The hollow rotating shaft 206 is stepped and hollow. The large end of the hollow rotating shaft 206 supports the spacer sleeve 214, and the small end of the hollow rotating shaft 206 is locked with two locking nuts 203 slotted on the outer edge surface. The large end of the hollow rotating shaft 206 is screwed with a long connecting sleeve 215, and the small end of the hollow rotating shaft 206 is screwed with a short connecting sleeve 204.

[0030] When implementing, Figure 4 , 5 As shown in Figure 6, the rotation positioning assembly includes a dividing positioning pin assembly housing 210, a spring 211, a locking pin 212, a handle 213, a handle mounting pin 217, a limit pin 218, a sliding sleeve 219 and a connecting bolt 220. The dividing positioning pin assembly housing 210 is fixed to the locking pin mounting plate 209 by the connecting bolt 220. A three-step stepped hole with a larger opening at the lower end and a smaller opening at the upper end is provided in the middle of the dividing positioning pin assembly housing 210. A sliding sleeve 219 is inserted into the inner hole with a larger aperture at the lower end. A locking pin 212 is inserted into the inner hole of the sliding sleeve 219. A guide boss is provided on the outer edge surface of the locking pin 212. The outer edge surface of the guide boss contacts the inner hole wall of the sliding sleeve 219. A spring 211 is sleeved on the outer edge surface of the locking pin 212 above the guide boss. The lower end of the spring 211 abuts against the inner hole wall of the sliding sleeve 219. The upper end surface of the guide boss is connected, and the upper end of the spring 211 abuts against the upper end surface of the middle diameter of the stepped hole in the dividing and locating pin assembly housing 210. A downwardly recessed groove is provided on the upper end surface of the dividing and locating pin assembly housing 210, and the two end heads of the groove respectively extend to the outer edge surface of the dividing and locating pin assembly housing 210. Two short grooves are provided at the bottom of the groove. The two short grooves are arranged at 180° and are respectively arranged at the two end heads of the groove. A limit pin 218 is provided in the groove, and the limit pin 218 moves in the groove and the short groove. The limit pin 218 is arranged on the outer edge surface of the locking pin 212. A handle 213 is provided on the outer edge surface of the locking pin 212 above the dividing and locating pin assembly housing 210 through a handle mounting pin 217. The locking pin 212 is driven by the handle 213 to extend and retract around the dividing and locating pin assembly housing 210.

[0031] When implementing, Figure 4 , 5As shown in Figures 6 and 7, a limit hole and a mounting threaded hole are respectively provided on the right side of the support 216, the locking pin mounting plate 209 is fixed in the mounting threaded hole with screws, and the indexing positioning pin assembly housing 210 is fixed in an inner hole on one side of the locking pin mounting plate 209 by screws. The inner hole on the locking pin mounting plate 209 is coaxial with the limit hole provided on the right side of the support 216. The locking pin 212 can enter the inner hole of the locking pin mounting plate 209 and the limit hole on the right side of the support 216 at the same time under the action of the spring 211, so that the hollow rotating shaft 206 cannot rotate. The right end face of the indexing and positioning pin assembly housing 210 is provided with two groups of grooves (two in each group), and the right end of the locking pin 212 is provided with a handle 213 and a limit pin 218, which is radially inserted into the small hole on the right side of the locking pin 212. The limit pin 218 on the locking pin 212 cooperates with the long groove and short groove on the right end face of the indexing and positioning pin assembly housing 210 to achieve the locking pin 212 limiting and releasing the hollow rotating shaft 206. (In implementation, the indexing and positioning pin assembly housing 210 is provided with a long groove and a short groove intersecting at 90 degrees) Further, if Figure 1 As shown, a horizontal movement limit assembly 10 is provided on the right side of the rolling motion mechanism 2 on the platform 3. When the platform 3 slides to a predetermined position, the platform 3 is locked by the horizontal movement limit assembly 10 to prevent the platform 3 from being displaced during operation. During implementation, when the platform 3 slides to a predetermined position, the limit pin on the horizontal movement limit assembly 10 moves downward and is inserted into the limit hole on the upper mounting plate 601 of the guide rail mounting table 6 (the specific structure of the horizontal movement limit assembly 10 is consistent with the structure of the rotation positioning assembly on the rolling motion mechanism 2, and will not be described in detail here). For the structure of the limit hole on the upper mounting plate 601, please refer to the attached Figure 8 Or a clamping disc is installed at the lower end of the limit pin on the horizontal movement limit assembly 10. When the platform 3 slides to the predetermined position, the limit pin is spirally moved by screwing the handle, driving the limit pin to move downward. At this time, the clamping disc contacts the upper mounting plate 601 in the guide rail mounting table 6 and achieves positioning through friction, thereby positioning the platform 3.

[0032] Further, if Figure 7 As shown, the azimuth motion mechanism 4 is a slewing bearing.

[0033] When implementing, Figure 7As shown, the azimuth motion mechanism 4 can be set as a bearing structure, consisting of an inner ring and an outer ring, the inner ring can only rotate relative to the outer ring, and a plurality of positioning assembly mounting holes 401 are arranged on the outer ring at intervals, and the positioning assembly mounting holes 401 are used to connect the positioning pins in the guide rail mounting platform rotation positioning assembly 604, that is, the positioning pins in the guide rail mounting platform rotation positioning assembly 604 are moved down and inserted into the positioning assembly mounting holes 401, so as to realize the positioning of the guide rail mounting platform 6 and prevent the guide rail mounting platform 6 from rotating. Further, the lower side of the outer ring of the azimuth motion mechanism 4 is screwed with the corresponding threaded holes on the platform body 7 through the screws distributed on the circumference of the end face, and the inner ring of the azimuth motion mechanism 4 is screwed with the corresponding threaded holes on the guide rail mounting platform 6 through the screws distributed on the circumference of the end face, so as to realize the relative rotation movement (azimuth movement) of the guide rail mounting platform 6 relative to the platform body 7. Since the structure of the azimuth motion mechanism 4 is a conventional structure in the art, it will not be described here.

[0034] Further, if Figure 8 , 9 As shown in FIG. 10 , the guide rail mounting platform 6 includes an upper mounting plate 601, a frame 602, a lower mounting plate 603, a guide rail mounting platform rotation positioning assembly 604, a guide rail mounting platform rotation positioning assembly mounting plate 605, a connecting screw 606, a lifting eye screw 607, a handrail 608, An L-shaped limiting plate 609 and an L-shaped limiting plate connecting screw 610, an upper mounting plate 601 and a lower mounting plate 603 are respectively arranged on the upper and lower surfaces of the skeleton 602, and arc-shaped bosses extending outward are respectively arranged on both sides of the middle part of the lower mounting plate 603, and a plurality of bolt connecting holes are respectively arranged on the two arc-shaped bosses, and connecting bolts connected to the azimuth motion mechanism 4 are respectively inserted in each bolt connecting hole, and a guide rail mounting table rotation positioning assembly mounting plate 605 is fixed to one or two of the arc-shaped bosses by connecting screws 606, and a guide rail mounting table rotation positioning assembly 604 is arranged on one or two of the guide rail mounting table rotation positioning assembly mounting plates 605, and eye screws 607 are respectively arranged on the four corners of the upper mounting plate 601, a handrail 608 is arranged on the right end of the skeleton 602, and an L-shaped limiting plate 609 is arranged on the lower right side of the lower mounting plate 603 through an L-shaped limiting plate connecting screw 610.

[0035] During implementation, the upper mounting plate 601, the frame 602, and the lower mounting plate 603 are connected together by welding, and the middle part of the lower mounting plate 603 is a circular structure for connection with the azimuth motion mechanism 4. The lower mounting plate 603 is connected to the guide rail mounting platform rotation positioning assembly mounting plate 605 by connecting screws 606, and the guide rail mounting platform rotation positioning assembly mounting plate 605 is provided with a guide rail mounting platform rotation positioning assembly 604. The positioning pin in the guide rail mounting platform rotation positioning assembly 604 is moved down and inserted into the positioning assembly mounting hole 401 on the outer ring of the azimuth motion mechanism 4 to achieve the positioning of the guide rail mounting platform 6, so that the guide rail mounting platform 6 cannot rotate relative to the platform body 7 (the specific structure of the guide rail mounting platform rotation positioning assembly 604 is consistent with the rotation positioning assembly structure set on the rolling motion mechanism 2, and will not be repeated here). The L-shaped limit plate 609 is fixed to the lower part of the lower mounting plate 603 by the L-shaped limit plate connecting screw 610.

[0036] Further, if Fig.11 As shown, the four corners below the platform 7 are provided with screw adjustment mechanisms 8, and the right side above the platform 7 is provided with a graduation positioning pin assembly 12. During implementation, a counterweight 9 is provided at the lower part of the platform 7. During implementation, the counterweight 9 is two steel plates to lower the center of gravity of the entire test platform.

[0037] Further, if Fig.11 As shown, a dividing and locating pin assembly 12 is installed on the right side of the platform 7 (the structure of the dividing and locating pin assembly 12 is consistent with the structure of the rotating and locating assembly arranged on the rolling motion mechanism 2, and will not be described here). It should be noted that, Figure 1 , 8 As shown in FIGS. 1 and 11 , the structures of the fine-tuning limit assembly 11 arranged on the front support frame 1, the guide rail mounting table rotation positioning assembly 604 arranged on the guide rail mounting table 6, and the horizontal movement limit assembly 10 arranged on the platform 3 are all consistent with the structure of the rotation positioning assembly arranged on the rolling motion mechanism 2, and are not described again. The locking pin on the dividing positioning pin assembly 12 enters the groove on the L-shaped limit plate 609 to realize the accurate positioning of the guide rail mounting table 6 relative to the table body 7.

[0038] Further, if Fig.12 As shown, the spiral adjustment mechanism 8 includes a screw rod 801, an upper connecting plate 802, a screw 803 and a connecting seat 804. The lower end of the screw rod 801 is provided with a ball head, the upper part of the ball head is sleeved with the upper connecting plate 802, and the lower part of the ball head is inserted into the arc groove of the connecting seat 804. The connecting seat 804 and the upper connecting plate 802 are fixed together by screws 803.

[0039] During implementation, four spiral adjustment mechanisms 8 form a pitch adjustment mechanism. The operator uses a spanner to turn the screw 801 to adjust the four spiral adjustment mechanisms to achieve the lifting and pitch adjustment of the entire workbench. After the pitch posture and height position of the test bench are adjusted in place, the test bench posture is locked using four nuts. When adjusting the pitch motion, a leveling shell, one of the test bench accessories, is used to simulate the position and state of the product on the test bench to adjust the position of the test bench.

[0040] The columnar product to be tested in the present invention is in the shape of a hollow shell. During the test, one end of the columnar product to be tested is positioned and fixed by the long connecting sleeve 215 on the rolling motion mechanism 2, and the columnar product to be tested is clamped in the inner holes of the upper half movable support 103 and the lower half movable support 105 (such as Figure 1 As shown in the figure, the platform 3 can move axially along the guide rail 5 to an appropriate extent), the front support frame 1 and the rolling motion mechanism 2 jointly restrict the freedom of the columnar product to be tested except for rolling; the front support frame 1 and the rolling motion mechanism 2 are installed on the platform 3, and the platform 3 can move along the guide rail 5. The guide rail 5 is installed on the guide rail mounting platform 6, and an azimuth motion mechanism 4 is installed between the guide rail mounting platform 6 and the platform body 7, which can realize the rotational movement of the guide rail mounting platform 6 relative to the platform body 7. A counterweight 9 is installed on the platform body 7.

[0041] During the test, the columnar product is concentrically fixed on the long connecting sleeve 215 of the rolling motion mechanism 2, and the outer cylindrical surface of the columnar product is clamped in the inner holes of the upper half movable support 103 and the lower half movable support 105 of the front support frame 1 (such as Figure 1 As shown, the platform 3 can move axially along the guide rail 5 to an appropriate amount), and the rolling motion mechanism 2 cannot rotate after being positioned by the rotation positioning assembly. When it is necessary to slightly adjust the horizontal position of the columnar product, the adjustment screw 110 can be adjusted to make the translation limit block 111 move horizontally; by adjusting the screw 106, the connecting rod 108 and the floating support 107 are moved up and down, and the upper movable support 103 and the lower movable support 105 are further moved up and down, thereby driving the height direction adjustment of the columnar product. By pushing the platform 3, the columnar product is displaced a large distance in the horizontal direction along the linear guide rail; when the columnar product needs to rotate in the horizontal direction, the guide rail mounting table 6 is driven to rotate around the azimuth motion mechanism 4, and is positioned by the guide rail mounting table rotation positioning assembly 604. The four-corner spiral adjustment mechanism 8 under the platform 7 realizes fine adjustment of the horizontal and height directions of the columnar product. The lower counterweight 9 of the platform 7 is two steel plates, which lower the center of gravity of the entire test platform. The platform body 7 adopts a rigid truss structure, on which are mounted guide rails for platform movement and fixing devices for lifting the platform, which can reliably lock the height to be lifted and lowered, and has sufficient rigidity to maintain the stability of the platform body.

[0042] When the present invention is implemented, the specific structure of the front support frame 1 is as follows Figure 2 , 3As shown, the translation limit block 111 is located in the groove of the lower half support 112, and can move slightly left and right in the groove. The translation limit block 111 is locked in the horizontal position in the groove by moving the left and right adjustment screws 110. Two guide columns 109 are set in the two inner holes in the middle of the translation limit block 111, and the guide columns can move up and down in the inner holes. The left end of the connecting rod 108 is hinged in the left inner hole of the lower half support 112 through a fixed pin 116, the middle part of the connecting rod 108 is hinged to the floating support 107 through a rotating pin 115, and the right end of the connecting rod 108 is hinged to the adjusting screw 106 through a cylindrical pin; the adjusting screw 106 is composed of two outer studs with opposite rotation directions, which are connected by long nuts with inner threads with opposite rotation directions at both ends. When the long nut is rotated, the extension or shortening of the adjusting screw 106 is completed; the lower end of the adjusting screw 106 is hinged to the connecting rod 108, and the upper end of the adjusting screw 106 is hinged to the outer convex inner hole on the upper right side of the lower half support 112 through a cylindrical pin.

[0043] Furthermore, by manually adjusting the extension or shortening of the screw rod 106, the floating support 107 can be moved up and down under the limit of the guide column 109 and the action of the cylindrical pin in the middle of the connecting rod 108. The floating support 107 is provided with three bearings, which are tangent to the lower movable support 105. The lower movable support 105 and the upper movable support 103 can rotate with each other through the cylindrical pin on the left side. The columnar product to be tested can be placed in the middle of the upper movable support 103 and the lower movable support 105, and the connection is completed on the right side through the connecting screw.

[0044] The left side of the lower support 112 is connected to the upper left support 101 through a live bolt 113 and a nut, and the lower right side of the upper right support 102 is hinged to the lower support 112 through a cylindrical pin; a bearing is arranged in the middle groove of the upper left support 101 and the upper right support 102, and the right side of the upper left support 101 and the left side of the upper right support 102 are hinged through a connecting pin 118.

[0045] The hinge connection here is one of the innovations of the present invention: the conventional upper half support is an integrated design, and two bearings are arranged at the same position. However, since the right side of the integral upper half support is hinged with the lower half support 112, when the left side is tightened with the live bolt 113 and the nut, the two bearings of the integral upper half support can only achieve one bearing being tangent to the upper movable support 103 due to the processing error (three points determine a circle). However, the present design can overcome the above disadvantages and achieve Figure 3The five bearings shown are all tangent to the upper movable support 103 and the lower movable support 105, so the rotation accuracy is improved. That is, after the upper movable support 103, the lower movable support 105 and the floating support 107 are adjusted and moved left and right by the left and right adjustment screws 110 and the translation limit block 111, and adjusted and moved up and down by the adjustment screw 106 and the connecting rod 108, since the upper left support 101 and the upper right support 102 are composed of two halves that are hinged and can rotate relative to each other (the upper left support 101 and the upper right support 102 are conventionally designed as an integrated structure), it is ensured that after left and right adjustment and up and down adjustment, the upper movable support 103 can still have good contact with the upper bearings of the upper left support 101 and the upper right support 102, thereby ensuring the rotation accuracy of the upper movable support 103 and the lower movable support 105 for clamping the columnar product. During implementation, as Figure 3 As shown, the upper movable support 103 and the lower movable support 105 are connected as a whole through the arrangement of the rotation pin 119, the small positioning pin 120 and the engaging screw 121, and the columnar product can be clamped. At the same time, a plurality of positioning holes 122 cooperating with the anti-rotation pin shaft 114 are provided, that is, a plurality of positioning holes 122 are respectively provided on the upper movable support 103 and the lower movable support 105, as shown in FIG. Figure 3 As shown, six positioning holes 122 may be provided, and the six positioning holes 122 are 60 degrees apart.

[0046] Further, the specific structure of the platform 7 is as follows Fig.11 As shown, the platform 7 adopts a rigid truss structure, and a spiral adjustment mechanism 8 for adjusting the height of the platform 7 is installed at the bottom. The spiral adjustment mechanism 8 can allow the platform 7 to have a certain amount of lifting and lowering movement, and can reliably lock the lifted height, and has sufficient rigidity to maintain the stability of the platform; an azimuth movement mechanism 4 for rotating the guide rail mounting platform 6 is installed above.

[0047] When implementing, Figure 1 , 12 As shown, four spiral adjustment mechanisms 8 are provided, and the four spiral adjustment mechanisms 8 are combined to form a pitch motion mechanism. When implemented, the screw rod 801 is screwed by an adjustable wrench to adjust the four spiral adjustment mechanisms 8 to achieve the lifting and pitching adjustment of the entire platform 7. After the pitch attitude and height position of the platform 7 are adjusted in place, the attitude of the test platform is locked by four nuts. When adjusting the pitch motion, the test platform standard sample (the test platform standard sample is a standard sample used to calibrate the initial position) is used to level the shell to simulate the position and state of the columnar product on the test platform, and adjust the position of the test platform.

[0048] The structure of the rolling motion mechanism 2 is as follows: Figure 4 , 5As shown in Figure 6, two tapered roller bearings are installed on the rolling motion mechanism 2 for the rolling of the columnar product. Three sets of wedge pins (evenly distributed) are used to dock with the columnar product connector to complete the installation, connection and positioning of the columnar product. The position indexing required for the columnar product test is achieved by operating the rolling positioning pins. The entire rolling motion mechanism can make the columnar product roll 360° along its X-axis, with a rolling motion indexing angle of 45° and can be reliably and accurately positioned using the positioning pins.

[0049] The structure of the front support frame 1 is as follows Figure 2 , 3 As shown, the front support frame 1 is an adjustable bracket, and the adjusting screw 106 is used to fine-tune the Y-axis support position of the columnar product. The two adjustment screws 110 at the lower part of the adjusting screw 106 are used for fine-tuning the Z-axis direction of the columnar product, which is convenient for the initial installation of the columnar product and for auxiliary support of the columnar product after installation; the bottom of the front support frame 1 is designed with a cross-roller V-shaped rolling linear short guide rail, which can enable the columnar product to drive the front support frame to make a short-distance precise translation along the X-axis, which is convenient for the rapid docking of the columnar product and the connecting parts, and avoids the interference between the columnar product and the front support frame to cause mechanical damage.

[0050] Three bearings are installed on the lower support 112, and the lower movable support 105 can move on the bearings. In order to improve the contact characteristics of the upper movable support 103, the upper support is divided into two halves, namely the upper left support 101 and the upper right support 102 (each of which is provided with a bearing), which are connected in the middle with a rotating pin, so that the upper movable support 103 can reliably contact the two bearings on the upper left support 101 and the upper right support 102, thereby improving the rotation accuracy.

[0051] The structure of the azimuth motion mechanism 4 is as follows: Figure 7 As shown, the azimuth motion mechanism 4 is mainly a slewing bearing, which pushes the guide rail mounting platform 6 to rotate the columnar product around the center axis of the platform 7 by ±90°, thereby completing the installation of the columnar product and the required test orientation. The azimuth motion mechanism 4 is designed with an azimuth positioning and locking device.

[0052] When in use, the columnar product, the front support frame 1, the rolling motion mechanism 2 and the platform 3 can move horizontally for a long distance on the guide rail 5 along the X-axis direction of the columnar product to complete the posture adjustment and testing of the columnar product. The columnar product can be locked at any position within its motion range relative to the guide rail 5. The guide rail 5 uses a four-way equal load type rolling linear guide pair, which has the characteristics of high precision and reliable operation.

[0053] In order to ensure long-term and reliable use of the platform 3, multiple lubrication points can be set on the platform 3.

[0054] It should be understood that parts not elaborated in detail in this specification belong to the prior art.

[0055] It should be understood that the above description of the implementation examples is relatively detailed and cannot be regarded as limiting the scope of patent protection of the present invention. Under the guidance of the present invention, ordinary technicians in this field can also make substitutions or modifications without departing from the scope of protection of the claims of the present invention, which all fall within the scope of protection of the present invention. The scope of protection requested for the present invention shall be based on the attached claims.

Claims

1. A columnar product testing platform, comprising a front support frame (1), a rolling motion mechanism (2), a platform (3), an azimuth motion mechanism (4), a guide rail (5), a guide rail mounting platform (6) and a platform body (7), wherein: An azimuth movement mechanism (4) is provided on the platform body (7), a guide rail mounting platform (6) is provided on the azimuth movement mechanism (4), at least two parallel guide rails (5) are provided on the guide rail mounting platform (6), the sliders on the two guide rails (5) are respectively connected to the platform (3), a front support frame (1) and a rolling movement mechanism (2) are provided on the platform (3), a horizontal movement limit assembly (10) for limiting the sliding of the platform (3) is provided on the platform (3) on the right side of the rolling movement mechanism (2), and the columnar product fixing hole on the front support frame (1) is coaxially arranged with the columnar product fixing hole on the rolling movement mechanism (2).

2. The columnar product testing platform according to claim 1, characterized in that: The front support frame (1) comprises an upper left support (101), an upper right support (102), an upper movable support (103), a ball bearing (104), a lower movable support (105), an adjusting screw (106), a floating support (107), a connecting rod (108), a guide column (109), an adjusting screw (110), a translation limit block (111), a lower support (112) and a live bolt (113); the lower support (112) is fixedly connected to the upper surface of the platform (3) by bolts; a groove recessed upward is provided on the lower end surface of the lower support (112); plugs are respectively provided at the left and right ends of the groove; the screw holes on the two plugs are respectively threaded with the adjusting screws (110); and a left and right movable groove is provided in the groove between the two plugs. The ends of the two adjusting screws (110) respectively abut against the left and right ends of the translational limit block (111); at least two guide column lower limit holes are arranged at intervals on the upper side of the translational limit block (111); a guide column (109) is inserted into each guide column lower limit hole; the upper end of each guide column (109) is respectively inserted into the guide column upper limit hole on the lower side of the floating support (107); the lower part of the floating support (107) is hinged to the middle part of the connecting rod (108) through a rotating pin (115); the left end of the connecting rod (108) is hinged to the lower half support (112) through a fixed pin (116); the right end of the connecting rod (108) is suspended and connected to the adjusting screw (106) through a pin. ), at least three ball bearings (104) are arranged at intervals on the arc surface of the upper end of the floating support (107), and the outer edge surface of each ball bearing (104) is higher than the arc surface of the upper end of the floating support (107), and an upper left support (101) and an upper right support (102) are arranged above the lower half support (112), the left end of the upper left support (101) is connected to the left end of the lower half support (112) through a live bolt (113), the right end of the upper left support (101) is hinged to the left end of the upper right support (102) through a pin, and the right end of the upper right support (102) is hinged to the upper end of the adjusting screw (106) and the right end of the lower half support (112) through a pin, and the upper left support (101) is connected to the left end of the lower half support (112) through a live bolt (113). At least one ball bearing (104) is respectively provided on the inner edge surface of the upper right support (102), and the outer edge surface of each ball bearing (104) is higher than the inner arc surface of the upper left support (101) and the upper right support (102). After the lower support (112), the upper left support (101) and the upper right support (102) are combined, a circular hole is formed in the middle part, and an upper movable support (103) and a lower movable support (105) are provided in the circular hole. The left ends of the upper movable support (103) and the lower movable support (105) are hinged by a rotating pin (119), and the right ends of the upper movable support (103) and the lower movable support (105) are connected by a joint screw (121) to form a circular movable support.The outer edge surface of the annular movable support abuts against a plurality of ball bearings (104), and a columnar product to be tested is inserted into the inner hole in the middle of the annular movable support.

3. The columnar product testing platform according to claim 2, characterized in that: An annular groove is provided on the end surface of the annular movable support, and a plurality of positioning holes (122) are provided at intervals at the bottom of the annular groove. An anti-rotation pin shaft (114) is provided in one of the positioning holes (122), and the outer end of the anti-rotation pin shaft (114) is connected to the lower half support (112); a cross roller linear guide (117) is provided below the lower half support (112), and the cross roller linear guide (117) is connected to the platform (3); a fine adjustment limit assembly (11) for limiting the movement of the lower half support (112) is provided on the bottom plate of the lower half support (112).

4. The columnar product testing platform according to claim 1, characterized in that: The rolling motion mechanism (2) comprises a short connecting sleeve (204), a hollow rotating shaft (206), a roller bearing (207), a locking pin mounting plate (209), a long connecting sleeve (215), a support (216) and a rotating positioning assembly, wherein two roller bearings (207) are arranged in a mounting hole at the upper end of the support (216), and a bearing cap A (202) and a bearing cap B (207) are fixed to two open ends of the mounting hole by screws A (201) respectively. 08), the bearing cover A (202) and the bearing cover B (208) press the two roller bearings (207) into the mounting hole, a hollow rotating shaft (206) is inserted into the inner ring of the two roller bearings (207), a spacer (214) is respectively provided between the outer edge surface of the hollow rotating shaft (206) and the inner edge surface of the bearing cover A (202) and the bearing cover B (208), and a positioning shoulder is provided at one end of the outer edge surface of the hollow rotating shaft (206). One side of the shaft shoulder corresponds to the bearing cover B (208), the other side of the positioning shaft shoulder is connected to the long connecting sleeve (215) by bolts, a plurality of anti-rotation positioning grooves are arranged at intervals on the outer edge surface of the positioning shaft shoulder, an external thread is arranged at the other end of the outer edge surface of the hollow rotating shaft (206), at least one locking nut (203) is sleeved on the external thread, and the locking nut (203) cooperates with the positioning shaft shoulder to prevent the hollow rotating shaft (206) from moving in the inner rings of the two roller bearings (207), the end of the hollow rotating shaft (206) outside the locking nut (203) is connected to the short connecting sleeve (204) by screws B (205), a locking pin mounting plate (209) is arranged on the side of the support (216), and a rotation positioning assembly is arranged on the locking pin mounting plate (209), and the end of the locking pin (212) in the rotation positioning assembly corresponds to the anti-rotation positioning groove on the positioning shaft shoulder of the hollow rotating shaft (206).

5. The columnar product testing platform according to claim 4, characterized in that: The rotary positioning assembly comprises a graduated positioning pin assembly housing (210), a spring (211), a locking pin (212), a handle (213), a handle mounting pin (217), a limit pin (218), a sliding sleeve (219) and a connecting bolt (220). The graduated positioning pin assembly housing (210) is fixed to the locking pin mounting plate (209) by means of the connecting bolt (220). A three-stepped hole having a larger opening at the lower end and a smaller opening at the upper end is provided in the middle of the graduated positioning pin assembly housing (210). A sliding sleeve (219) is inserted into the inner hole with a larger aperture at the lower end. A locking pin (212) is inserted into the inner hole of the sliding sleeve (219). A guide boss is provided on the outer edge surface of the locking pin (212). The outer edge surface of the guide boss contacts the inner hole wall of the sliding sleeve (219). A spring (211) is sleeved on the outer edge surface of the locking pin (212) above the guide boss. The lower end of the spring (211) is provided with a guide boss. The end abuts against the upper end surface of the guide boss, the upper end of the spring (211) abuts against the upper end surface of the middle diameter of the stepped hole in the indexing positioning pin assembly housing (210), a downwardly recessed groove is provided on the upper end surface of the indexing positioning pin assembly housing (210), the two ends of the groove respectively extend to the outer edge surface of the indexing positioning pin assembly housing (210), two short grooves are provided at the bottom of the groove, the two short grooves are arranged at 180 degrees and are respectively arranged at the two ends of the groove, A limit pin (218) is provided in the groove, and the limit pin (218) moves in the groove and the short groove. The limit pin (218) is arranged on the outer edge surface of the locking pin (212). A handle (213) is provided on the outer edge surface of the locking pin (212) above the indexing positioning pin assembly housing (210) via a handle mounting pin (217). The locking pin (212) is driven by the handle (213) to extend and retract around the indexing positioning pin assembly housing (210).

6. The columnar product testing platform according to claim 1, characterized in that: The azimuth motion mechanism (4) is a slewing bearing.

7. The columnar product testing platform according to claim 1, characterized in that: The guide rail mounting platform (6) comprises an upper mounting plate (601), a frame (602), a lower mounting plate (603), a guide rail mounting platform rotation positioning assembly (604), a guide rail mounting platform rotation positioning assembly mounting plate (605), connecting screws (606), eyebolts (607), handrails (608), an L-shaped limit plate (609) and an L-shaped limit plate connecting screw (610). The upper mounting plate (601) and the lower mounting plate (603) are respectively arranged on the upper and lower surfaces of the frame (602). The two sides of the middle part of the lower mounting plate (603) are respectively provided with arc-shaped bosses extending outwards. A plurality of bolt connection holes are respectively provided on the two arc-shaped bosses. A connecting bolt connected to the azimuth motion mechanism (4) is respectively inserted into each bolt connection hole. A connecting screw is connected to one of the arc-shaped bosses through a connecting screw. (606) is fixedly provided with a guide rail mounting platform rotation positioning assembly mounting plate (605), a guide rail mounting platform rotation positioning assembly (604) is provided on the guide rail mounting platform rotation positioning assembly mounting plate (605), eye screws (607) are respectively provided at the four corners on the upper mounting plate (601), a handrail (608) is provided at the right end of the frame (602), and an L-shaped limit plate (609) is provided below the right side of the lower mounting plate (603) through an L-shaped limit plate connecting screw (610).

8. The columnar product testing platform according to claim 1, characterized in that: Screw adjustment mechanisms (8) are respectively provided at the four corners below the platform (7), and a graduation positioning pin assembly (12) is provided on the right side above the platform (7).

9. The columnar product testing platform according to claim 8, characterized in that: A counterweight (9) is provided at the lower part of the platform (7).

10. The columnar product testing platform according to claim 8, characterized in that: The screw adjustment mechanism (8) comprises a screw rod (801), an upper connecting plate (802), a screw (803) and a connecting seat (804); the lower end of the screw rod (801) is provided with a ball head; the upper portion of the ball head is sleeved with the upper connecting plate (802); the lower portion of the ball head is inserted into an arc groove of the connecting seat (804); the connecting seat (804) and the upper connecting plate (802) are fixedly connected together by means of the screw (803).

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