Positioning auxiliary tool for pump shell punching

Abstract

The utility model provides an auxiliary positioning tool for punching a pump shell, and belongs to the technical field of positioning tools. The positioning auxiliary tool for pump shell punching comprises a positioning mechanism, a fixing mechanism and a pump shell body, the positioning mechanism comprises a fixing base, a rotating shaft is connected to the center of the top of the fixing base through a bearing, a machine shell is installed at the bottom of the fixing base, a first motor is installed in the machine shell, and the output end of the first motor is in transmission connection with the rotating shaft; an infrared emitter is installed at the position, close to the edge, of the top of the fixed base, a rotating disc is installed at the top of the rotating shaft, an annular groove and four sets of grooves are formed in the top of the rotating disc, the four sets of grooves are connected with the annular groove at equal intervals, and infrared receivers are installed at the positions, under the centers of the grooves, of the bottom of the fixed base. According to the technical scheme, the four sets of infrared receivers and the four sets of infrared emitters are used for achieving the purposes of reducing the positioning cost and improving the drilling accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a positioning auxiliary tooling for drilling holes in a pump casing. Background Art

[0002] The pump casing is a component of various pumps and an indispensable main component. Currently, most pump casings are made of cast iron and white cast iron. After the gray cast iron pump casing is cast into a blank, it is lathe processed, threaded and drilled, and then connected and assembled with the pump seat with bolts. It can be seen that the pump casing needs to be punched during the production process.

[0003] At present, direct visual inspection or dot matrix projection positioning methods are generally used to locate the hole processing of the pump casing. The biggest defect of direct visual inspection is low accuracy, and the dot matrix projection positioning method requires the pump casing to be placed in a dedicated detection device, the projection of the pump casing is transmitted to the computer, and then the pump casing is dot-mapped by the computer. Finally, by comparing the two pump casings, the hole processing position that meets the above requirements is found. Therefore, the workload of dot matrix drawing is too large, the operation is complicated, and the efficiency is low. In addition, the equipment takes up space and requires regular maintenance. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a positioning auxiliary tool for drilling holes in a pump casing.

[0005] The utility model is achieved in this way:

[0006] A positioning auxiliary tool for drilling holes in a pump casing comprises a positioning mechanism, a fixing mechanism and a pump casing body, wherein the positioning mechanism comprises a fixing base, a rotating shaft is connected to the top center of the fixing base through a bearing, a casing is installed at the bottom of the fixing base, a first motor is installed inside the casing, and the output end of the first motor is transmission-connected to the rotating shaft, an infrared transmitter is installed near the edge of the top of the fixing base, a turntable is installed on the top of the rotating shaft, a ring groove and four groups of grooves are provided on the top of the turntable, and the four groups of grooves are connected to the ring groove at equal distances, an infrared receiver is installed on the bottom of the fixing base just below the center of the groove, the infrared receiver receives infrared rays emitted by the infrared transmitter, and the pump casing body is placed on the top of the turntable.

[0007] The beneficial effect of adopting the above further scheme is that the first motor is electrically connected to the infrared receiver through the controller. After the pump casing body is placed on the turntable, the first motor is started to make the turntable drive the pump casing body to rotate. When the infrared receiver rotates to the top of the infrared transmitter, it will receive the infrared rays emitted by the infrared transmitter. At this time, it will send a signal to the controller, and the controller will immediately turn off the first motor. The turntable stops rotating at this time, and then the drilling machine is used to drill holes in the pump casing body. Because the four groups of infrared receivers are distributed at equal distances, the four groups of fixed holes drilled each time are also distributed in the same way, thereby improving the drilling accuracy and reducing the drilling cost.

[0008] Furthermore, a worm wheel is installed on the outer side of the rotating shaft, and the output end of the first motor is transmission-connected with a worm, and the worm and the worm wheel are meshingly connected.

[0009] Furthermore, the pump casing body comprises a shell, and four groups of protrusions are installed at equal distances on the outer side of the shell, and fixing holes are opened on the tops of the protrusions. The shell is located in an annular groove, and the protrusions are located in grooves.

[0010] Furthermore, a pipeline is installed on the outer side of the shell, and a flange is installed on the top end of the pipeline.

[0011] The beneficial effect of adopting the above further solution is that, since the fixing hole is located on the protrusion, by placing the protrusion in the groove, the fixing hole drilled each time can be located at the center of the protrusion, and the upper annular groove can be used to prevent the housing from shaking on the turntable.

[0012] Furthermore, the fixing mechanism includes a fixing rod, which is installed at the top center of the turntable. Four groups of slots are opened on the outer side of the fixing rod. Arc plates are slid inside the slots, and the arc plates are pressed against the inner wall of the shell.

[0013] Furthermore, a sleeve is installed at the inner center of the fixed rod, and four groups of through holes are opened on the outer side of the sleeve. Sliding rods are slid inside the through holes, one end of the sliding rod is connected to the arc plate, and a gasket is installed at the other end of the sliding rod, and a spring is connected between one side of the gasket and the inner wall of the sleeve.

[0014] Furthermore, a second motor is installed at the inner center of the sleeve, and the output end of the second motor is transmission-connected to an adjustment disk, and four groups of arc blocks are installed at equal distances on the outer side of the adjustment disk, and the arc blocks squeeze the gasket.

[0015] The beneficial effect of adopting the above further scheme is that when the second motor is started, the arc block will squeeze the gasket, thereby moving the slide rod and causing the arc plate to squeeze the inner wall of the shell, thereby completing the fixation of the pump shell body to prevent it from shifting during drilling. At the same time, it can also prevent the rotating turntable from causing the pump shell body to shift. If the arc block does not squeeze the gasket, the arc plate will be reset under the action of the spring, and the inner wall of the shell will not be squeezed at this time, so it can be removed.

[0016] The beneficial effect of the utility model is as follows: the utility model obtains a positioning auxiliary tool for drilling a pump casing through the above design, the first motor is electrically connected to the infrared receiver through the controller, after the pump casing body is placed on the turntable, the first motor is started to make the turntable drive the pump casing body to rotate, when the infrared receiver rotates to the top of the infrared transmitter, it will receive the infrared rays emitted by the infrared transmitter, and then a signal will be sent to the controller, the controller immediately turns off the first motor, the turntable stops rotating at this time, and then the drilling machine is used to drill the pump casing body, because the four groups of infrared receivers are distributed at equal distances, the four groups of fixed holes drilled each time are also distributed in the same way, thereby improving the drilling accuracy and reducing the drilling cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A three-dimensional structural schematic diagram of a positioning auxiliary tool for drilling a pump casing provided by the utility model;

[0019] Figure 2 A bottom-up three-dimensional structural schematic diagram of a positioning auxiliary tool for drilling a pump casing provided by the utility model;

[0020] Figure 3 A schematic diagram of a first exploded structure of a positioning auxiliary tool for drilling a pump casing provided by the utility model;

[0021] Figure 4 The present invention is a schematic diagram of a second exploded structure of a positioning auxiliary tool for pump casing drilling provided by the utility model.

[0022] In the figure: 100, positioning mechanism; 1001, fixed base; 1002, turntable; 1003, infrared transmitter; 1004, infrared receiver; 1005, casing; 1006, worm; 1007, rotating shaft; 1008, worm wheel; 1009, annular groove; 1010, groove; 200, fixing mechanism; 2001, fixing rod; 2002, slot; 2003, sleeve; 2004, through hole; 2005, adjusting disk; 2006, arc block; 2007, arc plate; 2008, sliding rod; 2009, gasket; 2010, spring; 300, pump casing body; 3001, casing; 3002, protrusion; 3003, fixing hole; 3004, pipeline; 3005, flange. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1 of the utility model of a positioning auxiliary tool for drilling a hole in a pump casing

[0026] The utility model provides the following technical solutions: Figure 1-Figure 4, including a positioning mechanism 100, a fixing mechanism 200 and a pump casing body 300, the positioning mechanism 100 includes a fixing base 1001, the top center of the fixing base 1001 is connected with a rotating shaft 1007 through a bearing, the bottom of the fixing base 1001 is installed with a casing 1005, a first motor is installed inside the casing 1005, and the output end of the first motor is connected to the rotating shaft 1007 in a transmission connection, an infrared transmitter 1003 is installed near the edge of the top of the fixing base 1001, a turntable 1002 is installed on the top of the rotating shaft 1007, an annular groove 1009 and four groups of grooves 1010 are provided on the top of the turntable 1002, and the four groups of grooves 1010 are connected to the annular groove 1009 at equal distances, and an infrared receiver 1004 is installed at the bottom of the fixing base 1001 just below the center of the groove 1010, and the infrared receiver 100 4 receives the infrared rays emitted by the infrared transmitter 1003, the pump casing body 300 is placed on the top of the turntable 1002, the first motor is electrically connected to the infrared receiver 1004 through the controller, after the pump casing body 300 is placed on the turntable 1002, the first motor is started to make the turntable 1002 drive the pump casing body 300 to rotate, when the infrared receiver 1004 rotates to the top of the infrared transmitter 1003, it will receive the infrared rays emitted by the infrared transmitter 1003, and at this time, a signal will be sent to the controller, the controller immediately turns off the first motor, the turntable 1002 stops rotating at this time, and then the drilling machine is used to drill the pump casing body 300, because the four groups of infrared receivers 1004 are distributed at equal distances, so the four groups of fixed holes 3003 drilled each time are also distributed in the same way, thereby improving the drilling accuracy and reducing the drilling cost.

[0027] Embodiment 2 of the utility model of a positioning auxiliary tool for drilling a hole in a pump casing

[0028] Reference Figure 1-Figure 4Specifically, the fixing mechanism 200 includes a fixing rod 2001, which is mounted at the top center of the rotating disk 1002. Four groups of slots 2002 are provided on the outer side of the fixing rod 2001. Arc plates 2007 are slidably arranged inside the slots 2002. The arc plates 2007 are pressed against the inner wall of the housing 3001. A sleeve 2003 is installed at the inner center of the fixing rod 2001. Four groups of through holes 2004 are provided on the outer side of the sleeve 2003. Slide rods 2008 are slidably arranged inside the through holes 2004. One end of the slide rod 2008 is connected to the arc plate 2007. A gasket 2009 is installed at the other end of the slide rod 2008. A spring 2010 is connected between one side of the gasket 2009 and the inner wall of the sleeve 2003. A second motor is installed, and the output end of the second motor is transmission-connected with an adjusting disk 2005. Four groups of arc blocks 2006 are installed at equal distances on the outside of the adjusting disk 2005. The arc blocks 2006 squeeze the gasket 2009. When the second motor is started, the arc blocks 2006 squeeze the gasket 2009, thereby moving the slide bar 2008 and squeezing the inner wall of the shell 3001, thereby completing the fixation of the pump shell body 300 to prevent it from shifting during drilling. At the same time, it can also prevent the rotating turntable 1002 from causing the pump shell body 300 to shift. If the arc block 2006 does not squeeze the gasket 2009, the arc plate 2007 will be reset under the action of the spring 2010, and the inner wall of the shell 3001 will not be squeezed at this time, so it can be removed.

[0029] Embodiment 3 of the utility model of a positioning auxiliary tool for drilling a hole in a pump casing

[0030] Reference Figure 1-Figure 4 Specifically, the pump casing body 300 includes a casing 3001, four groups of protrusions 3002 are installed at equal distances on the outer side of the casing 3001, a fixing hole 3003 is opened on the top of the protrusion 3002, the casing 3001 is located in the annular groove 1009, the protrusion 3002 is located in the groove 1010, a pipe 3004 is installed on the outer side of the casing 3001, and a flange 3005 is installed on the top of the pipe 3004. Since the fixing hole 3003 is located on the protrusion 3002, by placing the protrusion 3002 in the groove 1010, the fixing hole 3003 drilled each time can be located at the center of the protrusion 3002, and the upper annular groove 1009 is cooperated to prevent the casing 3001 from shaking on the turntable 1002.

[0031] Specifically, the working principle of the positioning auxiliary tooling for drilling a hole in the pump casing is as follows: when in use, the casing 3001 is placed in the annular groove 1009, and the protrusion 3002 is located in the groove 1010, and then the position of the drilling device is adjusted so that the drill bit is located directly above the center of the top of the protrusion 3002, and then the second motor is started. When the second motor is started, the arc block 2006 squeezes the gasket 2009, so that the slide bar 2008 moves, and the arc plate 2007 squeezes the inner wall of the casing 3001, thereby completing the fixation of the pump casing body 300, and then the second motor is started. The first motor is started to make the turntable 1002 drive the pump casing body 300 to rotate. When the infrared receiver 1004 rotates to the top of the infrared transmitter 1003, it will receive the infrared rays emitted by the infrared transmitter 1003. At this time, a signal will be sent to the controller, and the controller will immediately turn off the first motor. The turntable 1002 stops rotating at this time, and then the pump casing body 300 is drilled by a drilling machine. Then the above operation is repeated until four fixing holes 3003 are drilled, and then the arc block 2006 is retracted, and the pump casing body 300 is removed.

[0032] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning auxiliary tool for pump casing drilling, characterized in that: The invention comprises a positioning mechanism (100), a fixing mechanism (200) and a pump casing body (300), wherein the positioning mechanism (100) comprises a fixing base (1001), a rotating shaft (1007) is connected to the center of the top of the fixing base (1001) via a bearing, a casing (1005) is installed at the bottom of the fixing base (1001), a first motor is installed inside the casing (1005), and the output end of the first motor is transmission-connected to the rotating shaft (1007), an infrared emitter (1003) is installed near the edge of the top of the fixing base (1001), and the fixing base (1001) is installed at the bottom of the fixing base (1001). A turntable (1002) is installed on the top of the rotating shaft (1007), and an annular groove (1009) and four groups of grooves (1010) are provided on the top of the turntable (1002), and the four groups of grooves (1010) are connected to the annular groove (1009) at equal distances. An infrared receiver (1004) is installed at the bottom of the fixed base (1001) just below the center of the groove (1010), and the infrared receiver (1004) receives infrared rays emitted by the infrared transmitter (1003). The pump housing body (300) is placed on the top of the turntable (1002).

2. A positioning auxiliary tool for pump casing drilling according to claim 1, characterized in that: A worm wheel (1008) is installed on the outer side of the rotating shaft (1007), and the output end of the first motor is drivingly connected to a worm (1006), and the worm (1006) and the worm wheel (1008) are meshingly connected.

3. A positioning auxiliary tool for pump casing drilling according to claim 1, characterized in that: The pump casing body (300) comprises a shell (3001), four groups of protrusions (3002) are equidistantly mounted on the outer side of the shell (3001), a fixing hole (3003) is provided on the top of each protrusion (3002), the shell (3001) is located in an annular groove (1009), and the protrusion (3002) is located in a groove (1010).

4. A positioning auxiliary tool for pump casing drilling according to claim 3, characterized in that: A pipe (3004) is installed on the outer side of the shell (3001), and a flange (3005) is installed on the top end of the pipe (3004).

5. The positioning auxiliary tool for pump casing drilling according to claim 3, characterized in that: The fixing mechanism (200) comprises a fixing rod (2001), wherein the fixing rod (2001) is mounted at the top center of the turntable (1002), and four groups of slots (2002) are provided on the outer side of the fixing rod (2001), and arc plates (2007) are slidably arranged inside the slots (2002), and the arc plates (2007) are pressed against the inner wall of the housing (3001).

6. A positioning auxiliary tool for pump casing drilling according to claim 5, characterized in that: A sleeve (2003) is installed at the inner center of the fixed rod (2001), and four groups of through holes (2004) are opened on the outer side of the sleeve (2003). Slide rods (2008) are slid inside the through holes (2004), one end of the slide rod (2008) is connected to the arc plate (2007), and a gasket (2009) is installed at the other end of the slide rod (2008), and a spring (2010) is connected between one side of the gasket (2009) and the inner wall of the sleeve (2003).

7. A positioning auxiliary tool for pump casing drilling according to claim 6, characterized in that: A second motor is installed at the inner center of the sleeve (2003), and the output end of the second motor is transmission-connected to an adjustment disk (2005). Four groups of arc blocks (2006) are installed at equal distances on the outer side of the adjustment disk (2005), and the arc blocks (2006) squeeze the gasket (2009).

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