Spatial dimension positioning tooling

Abstract

The invention relates to a dimension positioning device for a pump truck base and provides a space dimension positioning tool, comprising a fixed base, a rotating mechanism and a sliding base. The fixed base comprises a cylinder top plate positioning plate. The rotating rod of the rotating mechanism rotates around a rotation center line relative to the fixed base. The fixed positioning structure on the cylinder top plate positioning plate can be fastened to a top plate processing hole of the pump truck base cylinder so that the rotation center line is coaxial with the center line of the pump truck base cylinder. The sliding base can slide along the length direction of the rotating rod, and the sliding base is provided with a space dimension indicating mechanism and a diagonal brace connecting plate positioning laser. With the coordinated use of the space dimension indicating mechanism and the diagonal brace connecting plate positioning laser, the assembly position of the diagonal brace connecting plate can be confirmed, and the center line of the pump truck base cylinder is directly used as a positioning reference to ensure the accuracy of the position dimension from the center line of the pump truck base cylinder to the diagonal brace connecting plate, thereby improving the quality and accuracy of the assembly of the pump truck base and the base frame.

Description

Technical Field

[0001] The invention relates to a dimension positioning device for a pump truck base, in particular to a space dimension positioning tool. Background Art

[0002] A pump truck is an engineering machine that uses pressure to continuously transport concrete along a pipeline. When assembling a pump truck, it is necessary to ensure the quality and accuracy of the assembly of the pump truck base 5a and the base frame 6a. Figure 1-4 The key dimension in the assembly process is the position dimension H from the center line of the pump truck base cylinder 1a to the bucket body bend 2a (the vertical distance from the center line of the pump truck base cylinder 1a to the center of the bucket body bend 2a). In order to ensure the position dimension H, it is necessary to ensure the key dimension of the base 5a, that is, the position dimension A from the center line of the pump truck base cylinder 1a to the diagonal brace connecting plate 3a of the base 5a (the vertical distance from the center line of the pump truck base cylinder 1a to the end face of the diagonal brace connecting plate 3a). However, the top plate of the pump truck base cylinder 1a and the diagonal brace connecting plate 3a are not in the same plane, and the position dimension A cannot be directly located.

[0003] In the prior art, when the base 5a is actually manufactured, the position dimension A needs to be converted in size. The vertical distance from the center line of the pump truck base cylinder 1a to the end face at the center line of the hinge hole 4a (the common plane of the center lines of the left and right hinge holes 4a) is the position dimension B, and the vertical distance from the center line of the hinge hole 4a to the end face of the diagonal brace connecting plate 3a is the position dimension C. The position dimension A can be obtained by subtracting the position dimension C from the position dimension B. The hinge hole 4a and the diagonal brace connecting plate 3a are both located on the upper cover plate 7a, which is convenient for measurement and positioning. Therefore, the position dimension C is used as a reference to position the diagonal brace connecting plate 3a. However, since the hinge hole 4a is a rough hole, the position of the center line of the hinge hole 4a will change after machining, and there are many welds and large deformation when the base 5a is welded. Therefore, the position dimension B is also somewhat different from the theoretical dimension. The deviation of the actual position dimension A and the theoretical dimension makes the deviation between the actual position dimension A and the theoretical dimension large, and the horizontal total length of the dismounting tube body cannot be guaranteed; in addition, the diagonal brace connecting plate 3a includes a left diagonal brace connecting plate 3a-1 and a right diagonal brace connecting plate 3a-2. The left diagonal brace connecting plate 3a-1 needs to confirm the position dimension C1 through the left hinge hole 4a-1, and the right diagonal brace connecting plate 3a-2 needs to confirm the position dimension C2 through the right hinge hole 4a-2. Therefore, the relative dimensional accuracy of the left diagonal brace connecting plate 3a-1 and the right diagonal brace connecting plate 3a-2 cannot be guaranteed, that is, the position dimensions A corresponding to the left diagonal brace connecting plate 3a-1 and the right diagonal brace connecting plate 3a-2 are different, so that the gap between the base frame 6a and the base 5a during welding cannot be guaranteed to be within the design requirements, thereby affecting the welding quality of the diagonal brace connecting plate 3a and the base frame 6a, and weld cracking is prone to occur.

[0004] Therefore, the present invention provides a spatial dimension positioning tool to solve or alleviate the problems existing in the prior art. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a spatial dimension positioning tool, which can ensure the size and tolerance of the center line of the pump truck base cylinder to the diagonal support connecting plate, and ensure the accuracy and quality of the assembly of the base and the base frame.

[0006] In order to solve the above technical problems, the present invention provides a spatial dimension positioning tool, comprising: a fixed base, including a cylinder top plate positioning plate; a rotating mechanism, supported by the fixed base, including a rotating rod rotatably connected to the fixed base and a rotating rod positioning laser installed on the rotating rod, the rotating rod rotates around a rotation center line relative to the fixed base; a sliding base, the sliding base is movably installed on the rotating rod so as to be able to move along the length direction of the rotating rod, the sliding base is provided with a spatial dimension indicating mechanism and a diagonal support connecting plate positioning laser, The diagonal brace connecting plate positioning laser can emit a straight laser beam, and the light emitting plane where the straight laser beam is emitted by the diagonal brace connecting plate positioning laser is perpendicular to the moving direction of the sliding base, and the spatial dimension indicating mechanism can indicate the vertical distance from the spatial dimension indicating mechanism to the rotation center line; wherein, the cylinder top plate positioning plate is provided with at least one group of fixed positioning structures that can be fastened to the top plate processing hole of the pump truck base cylinder, so that the rotation center line is coaxial with the center line of the pump truck base cylinder, and the rotating rod positioning laser is used to locate the positioning position of the rotating rod.

[0007] Optionally, a bearing sleeve is provided at one end of the rotating rod, a bearing is sleeved in the bearing sleeve, and a pin is passed through the mounting holes on the bearing and the fixed base, so that the rotating rod can rotate around the central axis of the pin relative to the fixed base.

[0008] Preferably, the bearing sleeve and the rotating rod are positioned by a stopper, and the surface of the connection between the bearing sleeve and the rotating rod is flush.

[0009] Specifically, a locking mechanism capable of limiting the relative rotation between the rotating rod and the fixed base is provided between the rotating rod and the fixed base, and the locking mechanism includes a locking screw and a locking butterfly nut. The locking screw passes through the arc groove on the fixed base and the mounting hole on the rotating rod in sequence and is connected to the locking butterfly nut so that the rotating rod can switch between a rotating state and a locking state. In the rotating state, the rotating rod can drive the locking screw to move along the arc groove. In the locked state, the locking butterfly nut can press the rotating rod against the fixed base.

[0010] Optionally, a guide rail is provided on the rotating rod, the sliding base is fixedly connected to a slider that can slide on the guide rail, and both ends of the guide rail are respectively provided with limit bolts for preventing the slider from detaching from the guide rail.

[0011] Specifically, the sliding base includes a bottom plate, a vertical plate, a laser positioning block and a size indicating positioning block; the sliding block and the size indicating positioning block are installed at the bottom of the bottom plate, and the vertical plate is installed at the top of the bottom plate; the spatial size indicating mechanism is a pointer arranged on the size indicating positioning block, and the pointer points to the scale on the rotating rod; the diagonal brace connecting plate positioning laser is a laser pen, and the light emitting plane of the laser pen emitting a straight laser beam coincides with the center line of the pointer, and the laser pen is rotatably mounted on the vertical plate through the laser positioning block.

[0012] Preferably, the laser positioning block is rotatably mounted in the slot on the upper portion of the vertical plate via a cylindrical pin, the central axis of the cylindrical pin is parallel to the moving direction of the sliding base, a rotating screw for controlling the rotation of the laser positioning block is provided at one end of the cylindrical pin away from the laser positioning block, and a knurled flat head screw capable of limiting the rotation of the cylindrical pin is also provided on the vertical plate.

[0013] Specifically, the fixed positioning structure is a pair of position hole one and position hole two on the positioning plate of the cylinder top plate, which are equidistant from the rotation center line. The vertical distance from the center of each of the position hole one and the position hole two to the rotation center line is equal to the vertical distance from the top plate processing hole of the pump truck base cylinder to the central axis of the cylinder. The hole spacing between the position hole one and the position hole two is equal to the hole spacing between the two top plate processing holes of the pump truck base cylinder.

[0014] Preferably, the cylinder top plate positioning plate is provided with a plurality of pairs of the position holes 1 and the position holes 2 so as to be able to be installed on the top plates of the cylinders of the pump truck bases of different models.

[0015] Specifically, the rotating rod positioning laser is a laser pen that can emit a straight laser beam, and the light emitting plane where the straight laser beam is emitted by the laser pen is parallel to the moving direction of the sliding base. A positioning seat for mounting the rotating rod positioning laser is provided at one end of the rotating rod away from the fixed base, and the rotating rod positioning mechanism can rotate relative to the positioning seat to adjust its light emitting direction.

[0016] Through the above scheme, the beneficial effects of the present invention are as follows:

[0017] The spatial dimension positioning tool of the present invention is fastened to the top plate processing hole of the pump truck base cylinder through the fixed positioning structure of the cylinder top plate positioning plate, so that the rotation center line of the rotating rod can be coaxial with the center line of the pump truck base cylinder, the rotating rod is rotated until the rotating rod positioning laser is positioned at the positioning position of the rotating rod, the rotating rod is stopped, and then the sliding base is moved. According to the distance indicated by the spatial dimension indicating mechanism, the vertical distance from the light emitting plane where the straight laser beam of the diagonal brace connecting plate positioning laser is located to the center line of the pump truck base cylinder can be known, so that the distance is the designed position dimension from the center line of the pump truck base cylinder to the diagonal brace connecting plate (pump truck base The vertical distance from the center line of the cylinder to the end face of the diagonal support connecting plate) is used to determine the position of the sliding base. At this time, the straight laser beam emitted by the diagonal support connecting plate positioning laser hits the upper cover plate of the pump truck base to form a straight laser projection line. The assembly position of the diagonal support connecting plate can be confirmed by the straight laser projection line. The spatial dimension positioning tool of the present invention directly uses the center line of the cylinder of the pump truck base as the positioning reference. There is no need to convert the positioning reference, which avoids the error caused by converting the positioning reference and ensures the accuracy of the position size from the center line of the pump truck base cylinder to the diagonal support connecting plate, thereby ensuring the quality and accuracy of the assembly of the pump truck base and the base frame.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of the delivery pipe assembly of a pump truck in the prior art;

[0021] Figure 2 This is a schematic diagram of the welding of the base and the base frame of the existing pump truck Figure 1 ;

[0022] Figure 3 yes Figure 2 A top view of the middle base frame;

[0023] Figure 4 It is a three-view drawing of the base structure of a prior art pump truck;

[0024] Figure 5 It is a front view of a specific embodiment of the spatial dimension positioning tool of the present invention;

[0025] Figure 6 It is a left view of a specific embodiment of the spatial dimension positioning tool of the present invention;

[0026] Figure 7 is a top view of a specific embodiment of the spatial dimension positioning tool of the present invention;

[0027] Figure 8 yes Figure 7 Sectional view at AA in the middle;

[0028] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0029] Fig.10 yes Figure 8 A partial enlarged view of point C in the middle;

[0030] Fig.11 is a front view of a specific embodiment of a fixed base;

[0031] Fig.12 is a top view of a specific embodiment of a fixed base;

[0032] Fig.13 is a structural schematic diagram of a specific embodiment of a fixed base;

[0033] Fig.14 is a front view of a specific embodiment of the rotating mechanism;

[0034] Fig.15 yes Fig.14 A partial enlarged view of point D in the middle;

[0035] Fig.16 yes Fig.14 Sectional view at EE;

[0036] Fig.17 is a top view of a specific embodiment of the rotating mechanism;

[0037] Fig.18 yes Fig.17 Cross-sectional view at FF;

[0038] Fig.19 yes Fig.17 Sectional view at GG in the middle;

[0039] Fig. 20 is a structural schematic diagram of a specific embodiment of a sliding base;

[0040] Fig.21 yes Fig. 20 A partial enlarged view of the H in the middle;

[0041] Fig. 22 It is a schematic diagram of the use status of the spatial dimension positioning tool of the present invention.

[0042] Description of Reference Numerals

[0043] 1 Fixed base

[0044] 101 Cylinder top plate positioning plate 102 Arc groove

[0045] 103 Position hole 1 104 Position hole 2

[0046] 2 Rotating mechanism

[0047] 201 Rotating rod 202 Rotating rod positioning laser

[0048] 203 ruler

[0049] 3 Sliding base

[0050] 301 Space dimension indicating mechanism 302 Diagonal brace connecting plate positioning laser

[0051] 303 bottom plate 304 vertical plate

[0052] 305 Laser positioning block 306 Size indication positioning block

[0053] 307 Cylindrical pin 308 Rotating screw

[0054] 309 Knurled Pan Head Screw

[0055] 4 bearing sleeve 5 bearing

[0056] 6 Pin 7 Locking mechanism

[0057] 701 Locking screw 702 Locking butterfly nut

[0058] 8 Guide rail 9 Slider

[0059] 10 Positioning seat 11 Limit bolt

[0060] 12 Positioning shaft 13 Lifting screw

[0061] 14. Closing the board

[0062] 100 Pump truck base cylinder 200 Diagonal brace connecting plate

[0063] 300 Upper cover plate 400 Top plate processing hole

[0064] 500 Laser projection line 600 Center line of upper cover plate butt weld DETAILED DESCRIPTION

[0065] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the following specific embodiments.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "form", "have", "set", "connect", etc. should be understood in a broad sense. For example, the connection can be a direct connection or an indirect connection through an intermediate medium, a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate connection member, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] It should be noted that in the following technical solution description, "vertical distance" does not refer to the distance in the vertical direction, but refers to the length of the perpendicular line between a point and a line, the length of the perpendicular line between a point and a plane, the length of the perpendicular line between two parallel lines, the length of the perpendicular line between a line and a parallel plane, or the length of the perpendicular line between two parallel planes.

[0068] The present invention provides a spatial dimension positioning tool, see Figures 5 to 7 and Fig. 22 As a specific embodiment, the spatial dimension positioning tool of the present invention includes a fixed base 1, a rotating mechanism 2 and a sliding base 3. The fixed base 1 includes a cylinder top plate positioning plate 101; the rotating mechanism 2 is supported by the fixed base 1, including a rotating rod 201 rotatably connected to the fixed base 1 and a rotating rod positioning laser 202 installed on the rotating rod 201, and the rotating rod 201 rotates around the rotation center line relative to the fixed base 1; the sliding base 3 is movably installed on the rotating rod 201 so as to be able to move along the length direction of the rotating rod 201, and the sliding base 3 is provided with a spatial dimension indicating mechanism 301 and a diagonal support connecting plate positioning laser 302, The diagonal brace connecting plate positioning laser 302 can emit a straight laser beam, and the light emitting plane where the straight laser beam emitted by the diagonal brace connecting plate positioning laser 302 is located is perpendicular to the moving direction of the sliding base 3, and the spatial dimension indicating mechanism 301 can indicate the vertical distance between the spatial dimension indicating mechanism 301 and the rotation center line; wherein, the cylinder top plate positioning plate 101 is provided with at least one group of fixed positioning structures that can be fastened to the top plate processing hole 400 of the pump truck base cylinder 100, so that the rotation center line of the rotating rod 201 is coaxial with the center line of the pump truck base cylinder 100, and the rotating rod positioning laser 202 is used to locate the positioning position of the rotating rod 201.

[0069] When the spatial dimension positioning tool of the present invention positions the diagonal brace connecting plate 200, it is first fastened to the top plate processing hole 400 through the fixed positioning structure of the cylinder top plate positioning plate 101, so that the fixed base can be fixedly installed on the pump truck base cylinder 100, and the rotation center line of the rotating rod 201 is coaxial with the center line of the pump truck base cylinder 100, and the rotating rod 201 is rotated until the rotating rod positioning laser 202 is positioned at the positioning position of the rotating rod 201, and the rotation of the rotating rod 201 is stopped. The length direction of the rotating rod 201 at this position is the same as the vertical direction between the center line of the pump truck base cylinder 100 and the end face of the diagonal brace connecting plate 200. By moving the sliding base 3 along the length direction of the rotating rod 201, since the positions of the spatial dimension indicating mechanism 301 and the diagonal brace connecting plate positioning laser 302 on the sliding base 3 are relatively fixed, the vertical distance between the spatial dimension indicating mechanism 301 and the rotation center line can be obtained. The vertical distance from the light emitting plane where the light beam is located to the center line of the pump truck base cylinder 100 is moved to the sliding base 3 so that the distance is the designed position dimension from the center line of the pump truck base cylinder 100 to the diagonal support connecting plate 200 (the vertical distance from the center line of the pump truck base cylinder 100 to the end face of the diagonal support connecting plate 200), thereby determining the position of the sliding base. The straight laser beam emitted by the diagonal support connecting plate positioning laser 302 at this position hits the upper cover plate 300 of the pump truck base to form a straight laser projection. Shadow line 500, by marking along the laser projection line 500, the assembly position of the diagonal brace connecting plate 200 can be confirmed, and the spatial dimension positioning tooling of the present invention confirms the assembly position directly using the center line of the pump truck base cylinder 100 as the positioning reference, without the need to convert the positioning reference, thereby avoiding the error caused by converting the positioning reference, ensuring the accuracy of the position dimension from the center line of the pump truck base cylinder 100 to the diagonal brace connecting plate 200, thereby improving the quality and accuracy of the assembly of the pump truck base and the base frame. It should be noted that when the rotating rod 201 is in the positioning position, the length direction of the rotating rod 201 is the same as the vertical direction between the center line of the pump truck base cylinder 100 and the end face of the diagonal brace connecting plate 200.

[0070] As a specific implementation of the spatial dimension positioning tool of the present invention, see Figure 8 , Fig. 9 , Fig.17 and Fig.18A bearing sleeve 4 is provided at one end of the rotating rod 201, and a bearing 5 is sleeved inside the bearing sleeve 4. A pin 6 is inserted into the mounting hole on the bearing 5 and the fixed base 1, so that the rotating rod 201 rotates relative to the fixed base 1 around the central axis of the pin 6. Preferably, two bearings 5 ​​are provided, which are respectively placed in the upper and lower inner cavities of the bearing sleeve 4, and a shaft elastic retaining ring is installed at the tail end of the pin 6 to prevent the bearing 5 from being separated from the pin 6, thereby improving the reliability of the rotating rod 201 rotating relative to the fixed base 1.

[0071] It should be noted that the bearing sleeve 4 and the rotating rod 201 are positioned by means of a stop. Preferably, a boss is formed on the bearing sleeve 4, and a groove is formed at the rotating rod 201 corresponding to the boss. The boss and the groove are matched to perform positioning, and then the bearing sleeve 4 and the rotating rod 201 are welded as a whole to ensure the mechanical strength of the connection between the two. In addition, the lower surface of the rotating rod 201 fits with the upper surface of the fixed base 1, so that the fixed base 1 and the rotating rod 201 have sufficient contact area to support the rotating rod 201 and prevent the rotating rod 201 from being away from the fixed base 1. The end will gradually move downward under the influence of gravity, causing the angle between the rotating rod 201 and the rotation centerline to change, affecting the positioning of the diagonal support connecting plate 200. Therefore, the surface of the connection between the bearing sleeve 4 and the rotating rod 201 is flush, that is, the surrounding surface of the bearing sleeve 4 at the connection with the rotating rod 201 is on the extended plane of the surrounding surface of the rotating rod 201, and no bulge will be generated to affect the support of the fixed base 1 on the rotating rod 201, and when the rotating rod 201 rotates relative to the fixed base 1, it can also always be supported by the fixed base 1. In addition, see Figure 8 and Figure 14-16 Preferably, the rod body of the rotating rod 201 is a hollow structure to reduce the overall weight of the rotating rod 201. The end of the rotating rod 201 away from the bearing sleeve 4 is sealed by a sealing plate 14, and the outer surface of the sealing plate 14 is flush with the end face of the rotating rod 201.

[0072] When positioning the diagonal brace connecting plate 200, the rotating rod positioning laser 202 is positioned at the positioning position of the rotating rod 201, and the rotating rod 201 needs to be stopped. In order to keep the rotating rod 201 fixed at this position for the convenience of subsequent operations, see 5. Figure 7 , Figure 8 and Fig.12Preferably, a locking mechanism 7 capable of limiting the relative rotation between the rotating rod 201 and the fixed base 1 is provided between the rotating rod 201 and the fixed base 1. The locking mechanism 7 includes a locking screw 701 and a locking butterfly nut 702. The locking screw 701 passes through the arc groove 102 on the fixed base 1 and the mounting hole on the rotating rod 201 in sequence and is connected to the locking butterfly nut 702, so that the rotating rod 201 can switch between a rotating state and a locked state. In the rotating state, the rotating rod 201 can drive the locking screw 701 to move along the arc groove 102. In the locked state, the locking butterfly nut 702 can press the rotating rod 201 against the fixed base 1. It should be noted that the center line of the arc groove 102 is an arc with the rotation center line as the center, so that when the rotating rod 201 rotates, it can drive the locking screw 701 to move smoothly in the arc groove 102, and the length of the arc groove 102 is limited, so it has a limiting effect on the locking screw 701, so that the rotation angle range of the rotating rod 201 is limited, preventing the rotating rod 201 from rotating out of the support surface of the fixed base 1. Specifically, see Fig.13 , the central angle corresponding to the center line of the arc groove 102 is a, and the rotation angle range of the rotating rod 201 is a.

[0073] As the spatial dimension positioning tool of the present invention, see Figure 5 , Figure 7 and Figure 8 , a guide rail 8 is provided on the rotating rod 201, a sliding base 3 is fixedly connected to a slider 9 that can slide on the guide rail 8, and the sliding base 5 is fitted with the guide rail 8 through the slider 4 so that it can be pushed in the length direction of the guide rail 8. The two ends of the guide rail 8 are respectively provided with limit bolts 11 to prevent the slider 9 from being separated from the guide rail 8. Preferably, the slider 9 is fixedly installed on the bottom of the sliding base 3 by bolts. It should be noted that a lead screw can also be provided on the rotating rod 201, and the sliding base 3 can be moved along the length direction of the rotating rod 201 through a lead screw transmission structure.

[0074] Specifically, see Figure 8 , Fig.10 , Fig.17 , Fig.19 and Fig. 20The sliding base 3 includes a bottom plate 303, a vertical plate 304, a laser positioning block 305 and a size indicating positioning block 306. The bottom of the bottom plate 303 is equipped with a slider 9 and a size indicating positioning block 306, and the top of the bottom plate 303 is equipped with a vertical plate 304; the spatial dimension indicating mechanism 301 is a pointer arranged on the size indicating positioning block 306, and a scale 203 arranged along its length direction is arranged on the rotating rod, and the pointer points to the scale 203 on the rotating rod 201, so as to indicate the vertical distance between the spatial dimension indicating mechanism 301 and the rotation center line; the diagonal brace connecting plate positioning laser 302 is a laser pen, and the light emitting plane where the laser beam emitted by the laser pen coincides with the center line of the pointer, Therefore, the vertical distance from the light emitting plane where the straight-line laser beam emitted by the diagonal brace connecting plate positioning laser 302 is located to the center line of the pump truck base cylinder 100 can be obtained through the size of the scale 203. In addition, the laser pen is rotatably mounted on the vertical plate 304 through the laser positioning block 305. Preferably, the laser pen is passed through the mounting hole in the middle of the laser positioning block and fixed by screws. In addition, the center line direction of the laser pen's rotation is parallel to the length direction of the rotating rod 201, so as to facilitate the rotation of the laser pen to adjust the direction of its laser emission, so that the straight-line laser beam emitted by the diagonal brace connecting plate positioning laser 302 can hit the upper cover plate 300 to form a laser projection line 500. It should be noted that, preferably, the scale 203 is installed in the stop grooves on both sides of the rotating rod 201, and the pointer is fixed to the side of the size indicating positioning block 306 close to the scale 203 by bolts, so that the pointer can be close to the scale 203, avoiding a large gap between the pointer and the scale 203, and causing reading errors due to the angle deviation of the reading viewing angle, thereby ensuring the accuracy of the positioning dimension, and the zero scale line of the scale 203 can be located at the position of the rotation center line of the rotating rod 201, or it can be at a certain distance from the rotation center line. For example, the distance between the zero scale line of the scale 203 and the rotation center line is 1000mm, so the scale line reading of the scale 203 pointed by the pointer needs to be added with 1000mm, so as to obtain the distance dimension from the center of the pointer to the rotation center line.

[0075] More specifically, see Fig.10 and Fig.21The laser positioning block 305 is rotatably installed in the slot on the upper part of the vertical plate 304 through a cylindrical pin 307. The central axis of the cylindrical pin 307 is parallel to the moving direction of the sliding base 3. A rotating screw 308 for controlling the rotation of the laser positioning block 305 is provided at one end of the cylindrical pin 307 away from the laser positioning block 305. By rotating the rotating screw 308, the laser positioning block 305 can be controlled to rotate 360° around the central axis of the cylindrical pin 307, thereby driving the diagonal brace connecting plate positioning laser 302 to rotate. A knurled flat head screw 309 that can limit the rotation of the cylindrical pin 307 is also provided on the vertical plate 304. It should be noted that the cylindrical pin 307 passes through the hole on the side of the vertical plate 304 and is fixedly connected to the threaded hole on the laser positioning block 305. The knurled flat head screw 309 is inserted from the top of the vertical plate 304, and the knurled flat head screw 309 is threadedly connected to the vertical plate 304. By rotating the knurled flat head screw 309, the knurled flat head screw 309 will be screwed into the cylindrical pin 307 until it is pressed against the cylindrical pin 307, thereby limiting the rotation of the cylindrical pin 307.

[0076] It should also be noted that, since the diagonal support connecting plate 200 includes a left diagonal support connecting plate and a right diagonal support connecting plate, when the diagonal support connecting plate positioning laser 302 emits a straight laser beam to form a laser projection line 500 on the upper cover plate 300, in order to avoid the straight laser beam emitted by one diagonal support connecting plate positioning laser 302 being blocked by the rotating rod 201 and the sliding base 3, and the formed laser projection line 500 can only determine the position of one of the left diagonal support connecting plate and the right diagonal support connecting plate, preferably, two diagonal support connecting plate positioning lasers 302 are provided, and two laser positioning blocks for rotatably mounting the diagonal support connecting plate positioning lasers 302 are correspondingly provided on the sliding base 3, and the two diagonal support connecting plate positioning lasers 302 are located on both sides of the rotating rod 201.

[0077] A circle of top plate processing holes 400 is formed on the top plate of the pump truck base cylinder 100. The top plate processing holes 400 are formed by positioning processing with the center axis of the cylinder as the center and a circle formed with a fixed radius, and have high positioning accuracy. Therefore, as a specific embodiment of the spatial dimension positioning tooling of the present invention, as shown in FIG. Figure 5 , Figure 11-13 and Fig. 22As shown, the fixed positioning structure is a pair of position holes 103 and position holes 104 on the cylinder top plate positioning plate 101, which are equidistant from the rotation center line of the rotating rod 201. The vertical distance between the center of each of the position holes 103 and the position holes 104 and the rotation center line of the rotating rod 201 is equal to the vertical distance between the top plate processing hole 400 of the pump truck base cylinder 100 and the cylinder center axis. The hole spacing between the position holes 103 and the position holes 104 is equal to the distance between the two top plates of the pump truck base cylinder 100. The processing hole 400 is formed by penetrating the position hole 103 through the positioning shaft 12 and coinciding with one of the top plate processing holes 400. The position hole 2 104 is formed by penetrating the positioning shaft 12 and coinciding with the other top plate processing hole 400. This ensures that the rotation center line of the rotating rod 201 is coaxial with the center line of the pump truck base cylinder 100. The nut (not shown in the figure) is tightened with the positioning shaft 12, so that the cylinder top plate positioning plate 101 is fixedly mounted on the top plate of the pump truck base cylinder 100. It should be noted that the greater the distance between the position hole 103 and the position hole 2 104, the higher the accuracy of the coincidence between the rotation center line of the rotating rod 201 (the central axis of the pin 6) and the center line of the pump truck base cylinder 100. The fixed positioning structure of the cylinder top plate positioning plate 101 corresponding to different models of pump truck base cylinders 100 can be determined based on the comprehensive consideration of the convenience of tooling and the design dimensional accuracy requirements.

[0078] It should be noted that the specifications of the pump truck base cylinder 100 of different models of pump trucks are inconsistent, and the distances from the top plate processing holes 400 on the pump truck base cylinder 100 to the cylinder center axis are also inconsistent. In order to enable the spatial dimension positioning tooling of the present invention to position the diagonal brace connecting plates 200 of various models of pump trucks, preferably, multiple groups of fixed positioning structures are provided on the cylinder top plate positioning plate 101, and the distances between each group of fixed positioning structures and the rotation center line are different. For example, see Fig.13 Four sets of fixed positioning structures are formed on the cylinder top plate positioning plate 101. The vertical distances from the position hole 103 and the position hole 2 104 on the four sets of fixed positioning structures to the rotation center line of the rotating rod 201 are R1, R2, R3 and R4 respectively, so that they can be fixedly installed corresponding to the top plate processing holes 400 of the pump truck base cylinder 100 of different models of pump trucks.

[0079] Preferably, see Fig.11 and Fig.12 In order to facilitate the spatial dimension positioning of the diagonal bracing connecting plate 200, the spatial dimension positioning tool of the present invention can be installed on the pump truck base cylinder 100, and a lifting screw 13 is provided on the fixed base 1. The lifting screw 13 is connected through the threaded hole on the cylinder top plate positioning plate 101. The lifting equipment can lift the spatial dimension positioning tool of the present invention through the lifting screw 13.

[0080] As the spatial dimension positioning tool of the present invention, see Figure 5-6 The rotating rod positioning laser 202 is a laser pen that can emit a straight laser beam. The light emitting plane of the straight laser beam emitted by the laser pen is parallel to the moving direction of the sliding base 3. The end of the rotating rod 201 away from the fixed base 1 is provided with a positioning seat 10 for installing the rotating rod positioning laser 202. The rotating rod positioning laser 202 can rotate relative to the positioning seat 10 to adjust its light emitting direction. The upper cover plate 300 has a center line 600 of the upper cover plate butt weld, which is perpendicular to the end face of the diagonal brace connecting plate 200. Therefore, the projection line of the straight laser beam emitted by the rotating rod positioning laser 202 on the upper cover plate 300 coincides with the center line 600 of the upper cover plate butt weld, so that the positioning position of the rotating rod 201 can be located to indicate that the length direction of the rotating rod 201 is the same as the vertical direction between the center line of the pump truck base cylinder 100 and the end face of the diagonal brace connecting plate 200. In addition, in a preferred case, the positioning seat 10 and the rotating rod 201 are positioned through the stopper and fixedly installed with bolts. The structure in which the rotating rod positioning laser 202 is rotatably installed on the positioning seat 10 is consistent with the structure in which the diagonal brace connecting plate positioning laser 302 is installed on the vertical plate 304. Specifically, the laser positioning block is rotatably installed in the notch of the positioning seat 10 through a cylindrical pin. The central axis of the cylindrical pin is perpendicular to the length direction of the rotating rod 201 and the rotation center line of the rotating rod 201. A rotating screw for controlling the rotation of the laser positioning block is provided at one end of the cylindrical pin away from the laser positioning block. A knurled flat head screw capable of limiting the rotation of the cylindrical pin is also provided on the positioning seat 10. More preferably, the rotating rod positioning laser 202 can also be translated to the horizontal sides of the rotating rod to change its projection line on the upper cover plate 300, so as to achieve the coincidence of the projection line with the center line 600 of the upper cover plate butt weld.

[0081] In order to better understand the technical method of the spatial dimension positioning tooling of the present invention, the structure and use scheme of the present invention are explained below in combination with relatively preferred technical features.

[0082] The steps for using the spatial dimension positioning tool of the present invention are as follows:

[0083] First, the position hole 103 and the position hole 104 on the cylinder top plate positioning plate 101 are respectively overlapped with the corresponding top plate processing holes 400 on the pump truck base cylinder 100, and the cylinder top plate positioning plate 101 is fixedly installed on the top plate of the pump truck base cylinder 100 by tightening the nut with the positioning shaft 12, so that the rotation center line of the rotating rod 201 relative to the fixed base 1 is coaxial with the center line of the pump truck base cylinder 100;

[0084] Rotate the rotating rod 201 around the rotation center line, and adjust the light emitting direction of the rotating rod positioning laser 202, so that the projection line of the rotating rod positioning laser 202 on the upper cover plate 300 coincides with the center line 600 of the upper cover plate butt weld, stop rotating the rotating rod 201, and tighten the locking butterfly nut 702 to press the rotating rod 201 against the fixed base 1 to limit the rotation of the rotating rod 201;

[0085] Slide the sliding base 3 on the rotating rod 201, check the scale of the scale 203 pointed by the pointer, so that the distance from the center of the pointer to the rotation center line is equal to the position dimension from the center line of the designed pump truck base cylinder 100 to the diagonal support connecting plate 200;

[0086] The light emitting plane of the straight laser beam emitted by the diagonal brace connecting plate positioning laser 302 coincides with the center line of the pointer. The diagonal brace connecting plate positioning laser 302 is rotated to project the straight laser beam onto the upper surface and end surface of the upper cover plate 300 to form a laser projection line 500. Then, a stone pencil is used to draw a line along the laser projection line 500 to confirm the assembly position of the diagonal brace connecting plate 200. The diagonal brace connecting plates 200 on the left and right sides are riveted at the stone pencil-drawn positions.

[0087] The spatial dimension positioning tool of the present invention confirms that the assembly position directly uses the center line of the pump truck base cylinder 100 as the positioning reference, and there is no need to convert the positioning reference, thereby avoiding the error caused by converting the positioning reference, ensuring the size and tolerance of the center line of the pump truck base cylinder 100 to the diagonal support connecting plate 200 on the base frame, and improving the quality and accuracy of the assembly of the pump truck base and the base frame.

[0088] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0089] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0090] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A spatial dimension positioning tool, characterized in that: include: A fixed base (1) comprising a cylinder top plate positioning plate (101); A rotating mechanism (2) is supported by the fixed base (1), comprising a rotating rod (201) rotatably connected to the fixed base (1) and a rotating rod positioning laser (202) mounted on the rotating rod (201), wherein the rotating rod (201) rotates around a rotation center line relative to the fixed base (1); A sliding base (3), the sliding base (3) being movably mounted on the rotating rod (201) so as to be movable along the length direction of the rotating rod (201), the sliding base (3) being provided with a spatial dimension indicating mechanism (301) and a diagonal support connecting plate positioning laser (302), the diagonal support connecting plate positioning laser (302) being capable of emitting a straight laser beam, and the light emitting plane where the straight laser beam is emitted by the diagonal support connecting plate positioning laser (302) is perpendicular to the moving direction of the sliding base (3), and the spatial dimension indicating mechanism (301) being capable of indicating the vertical distance from the spatial dimension indicating mechanism (301) to the rotation center line; Among them, at least one set of fixed positioning structures that can be fastened to the top plate processing hole (400) of the pump truck base cylinder (100) is provided on the cylinder top plate positioning plate (101), so that the rotation center line is coaxial with the center line of the pump truck base cylinder (100), and the rotating rod positioning laser (202) is used to locate the positioning position of the rotating rod (201).

2. The spatial dimension positioning tool according to claim 1, characterized in that: A bearing sleeve (4) is provided at one end of the rotating rod (201), a bearing (5) is sleeved in the bearing sleeve (4), and a pin (6) is passed through the mounting hole on the bearing (5) and the fixed base (1), so that the rotating rod (201) can rotate relative to the fixed base (1) around the central axis of the pin (6).

3. The spatial dimension positioning tool according to claim 2, characterized in that: The bearing sleeve (4) and the rotating rod (201) are positioned via a stopper, and the surfaces of the connection between the bearing sleeve (4) and the rotating rod (201) are flush.

4. The spatial dimension positioning tool according to claim 2, characterized in that: A locking mechanism (7) capable of limiting relative rotation between the rotating rod (201) and the fixed base (1) is provided between the rotating rod (201) and the fixed base (1). The locking mechanism (7) comprises a locking screw (701) and a locking butterfly nut (702). The locking screw (701) passes through the arc groove (102) on the fixed base (1) and the mounting hole on the rotating rod (201) in sequence and is connected to the locking butterfly nut (702) so that the rotating rod (201) can switch between a rotating state and a locking state. In the rotating state, the rotating rod (201) can drive the locking screw (701) to move along the arc groove (102). In the locking state, the locking butterfly nut (702) can press the rotating rod (201) against the fixed base (1).

5. The spatial dimension positioning tool according to claim 1, characterized in that: A guide rail (8) is provided on the rotating rod (201), the sliding base (3) is fixedly connected to a slider (9) capable of sliding on the guide rail (8), and limiting bolts (11) are respectively provided at both ends of the guide rail (8) to prevent the slider (9) from detaching from the guide rail (8).

6. The spatial dimension positioning tool according to claim 5, characterized in that: The sliding base (3) comprises a bottom plate (303), a vertical plate (304), a laser positioning block (305) and a size indicating positioning block (306); the sliding block (9) and the size indicating positioning block (306) are installed at the bottom of the bottom plate (303), and the vertical plate (304) is installed at the top of the bottom plate (303); The spatial dimension indicating mechanism (301) is a pointer arranged on the dimension indicating positioning block (306), and the pointer points to the scale (203) on the rotating rod (201); The diagonal brace connecting plate positioning laser (302) is a laser pen, the light emitting plane of the laser pen emitting a straight laser beam coincides with the center line of the pointer, and the laser pen is rotatably mounted on the vertical plate (304) through the laser positioning block (305).

7. The spatial dimension positioning tool according to claim 6, characterized in that: The laser positioning block (305) is rotatably mounted in a notch on the upper portion of the vertical plate (304) via a cylindrical pin (307); the central axis of the cylindrical pin (307) is parallel to the moving direction of the sliding base (3); a rotating screw (308) for controlling the rotation of the laser positioning block (305) is provided at one end of the cylindrical pin (307) away from the laser positioning block (305); and a knurled flat head screw (309) capable of limiting the rotation of the cylindrical pin (307) is also provided on the vertical plate (304).

8. The spatial dimension positioning tool according to claim 1, characterized in that: The fixed positioning structure is a pair of position hole one (103) and position hole two (104) on the cylinder top plate positioning plate (101) which are equidistant from the rotation center line, the vertical distance between the center of each of the position hole one (103) and the position hole two (104) to the rotation center line is equal to the vertical distance between the top plate processing hole (400) of the pump truck base cylinder (100) and the cylinder center axis, and the hole spacing between the position hole one (103) and the position hole two (104) is equal to the hole spacing between the two top plate processing holes (400) of the pump truck base cylinder (100).

9. The spatial dimension positioning tool according to claim 8, characterized in that: The cylinder top plate positioning plate (101) is provided with a plurality of groups of the fixed positioning structures, and the distances between each group of the fixed positioning structures and the rotation center line are different.

10. The spatial dimension positioning tool according to any one of claims 1 to 9, characterized in that: The rotating rod positioning laser (202) is a laser pen capable of emitting a straight laser beam, wherein a light emitting plane of the straight laser beam emitted by the laser pen is parallel to the moving direction of the sliding base (3), and a positioning seat (10) for mounting the rotating rod positioning laser (202) is provided at one end of the rotating rod (201) away from the fixed base (1), and the rotating rod positioning laser (202) can rotate relative to the positioning seat (10) to adjust its light emitting direction.

Images