CN112809577B - Positioning clamp and positioning method for transmission shafts of water pumps with different specifications and lengths - Google Patents
Positioning clamp and positioning method for transmission shafts of water pumps with different specifications and lengths Download PDFInfo
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- CN112809577B CN112809577B CN202011607038.7A CN202011607038A CN112809577B CN 112809577 B CN112809577 B CN 112809577B CN 202011607038 A CN202011607038 A CN 202011607038A CN 112809577 B CN112809577 B CN 112809577B
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Abstract
The invention discloses a transmission shaft positioning clamp of water pumps with different specifications and lengths and a positioning method thereof, wherein the clamp comprises a bottom plate, and also comprises a tailstock positioning mechanism and a main shaft clamping and rotating mechanism which are used for respectively positioning two ends of a transmission shaft of the water pump, the tailstock positioning mechanism and the main shaft clamping and rotating mechanism are both arranged on the bottom plate in a sliding manner, the main shaft clamping and rotating mechanism is a rotatable clamping structure, and jacking cylinder material receiving platforms which are used for supporting and positioning the corresponding end parts of the transmission shaft are arranged in the tailstock positioning mechanism and the main shaft clamping and rotating mechanism. The transmission shaft positioning clamp for the water pump with different specifications and lengths is reasonable in structural design, materials can be placed manually or by a manipulator, and after a material sensor senses the materials, the clamp can be clamped and positioned automatically, so that the intelligent automation degree of the industry is promoted, and the operation is simple and convenient; compared with the prior art, the structure is more stable, the feeding speed is higher, and the efficiency is higher.
Description
Technical Field
The invention relates to the technical field of shaft positioning fixtures, in particular to a transmission shaft positioning fixture for water pumps with different specifications and lengths and a positioning method thereof.
Background
The shaft is one of the important parts constituting the machine, widely used in various industries, and is a cylindrical part penetrating through the bearing center or the wheel center or the gear center, which mainly supports the rotating part and rotates together with it to transmit the mechanical part of motion, torque or bending moment.
The pump shaft is used for supporting rotating parts such as the impeller and the like, driving the impeller to rotate at a high speed at a determined working position and transmitting driving power. The shaft of the centrifugal pump rotates at a certain speed during working and bears large bending moment and torque. The shaft has enough strength and geometric accuracy, the adverse effect on the sealing performance is minimized, and the risks of abrasion and scratch are minimized, so that the shaft pump shaft plays a vital role in the water pump, and the operation of the whole water pump is influenced by the processing error of the shaft; the detection of the shaft needs to position the shaft, and at present, no positioning structure suitable for shafts with various specifications and lengths exists, and the positioning operation is complicated.
For example, chinese patent application 201220706824.7 discloses a "transmission shaft clamp and transmission shaft experiment table assembly", which proposes a clamp for clamping and fixing a transmission shaft in a transmission shaft experiment. The shaft can be clamped and fixed by the clamp through manual intervention, the intelligent automation degree is low, the transmission shafts on the market at present are provided with positioning surfaces, and the tool does not relate to positioning and pure rotation of the positioning surfaces; moreover, the structure involved is complex and the transmission shaft involved is too single, manual intervention causes clamping and fixing, and the actuation time is too long.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a positioning clamp and a positioning method for transmission shafts of water pumps with different specifications and lengths, so as to achieve the purposes of simple and efficient operation.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a transmission shaft positioning fixture of different specification length of water pump, includes the bottom plate, still presss from both sides tight rotary mechanism including tailstock positioning mechanism and the main shaft that is used for fixing a position respectively to water pump transmission shaft both ends, tailstock positioning mechanism and the equal slidable of the tight rotary mechanism of main shaft clamp establish on the bottom plate, the tight rotary mechanism of main shaft clamp is rotatable clamping structure, all is equipped with in tailstock positioning mechanism and the tight rotary mechanism of main shaft clamp to be used for the transmission shaft to correspond the jacking cylinder that the tip supported the location and connect the material platform.
The jacking cylinder material receiving table comprises a jacking cylinder and a material receiving block arranged at the upper end of a piston rod of the jacking cylinder, and a positioning groove is formed in the material receiving block.
The tailstock positioning mechanism comprises a tailstock and a positioning stop block arranged on the tailstock and used for positioning the end part of the transmission shaft, and a positioning stop hole matched with one end part of the transmission shaft is formed in the positioning stop block.
The outer side of the positioning stop block is arranged on the tailstock through an elastic buffer structure, and a water pump transmission shaft in-place detection end face sensor is arranged on the tailstock corresponding to the positioning stop hole.
The flat surface sensor is further arranged on the detection device, the flat surface sensor is used for detecting the flat surface of the transmission shaft, the sensor jacking positioning adjusting structure is arranged on the tailstock, the sensor jacking positioning adjusting structure can follow the sliding table cylinder of the axial adjusting position of the transmission shaft, and the flat surface sensor is arranged on the sliding table cylinder in a finding and milling mode.
The spindle clamping and rotating mechanism comprises a guide rail sliding block, a pneumatic clamping jaw and a spindle clamping and rotating mechanism pushing cylinder, the pneumatic clamping jaw is arranged on the guide rail sliding block, the spindle clamping and rotating mechanism pushing cylinder is arranged on the bottom plate, and the end part of a piston rod of the spindle clamping and rotating mechanism pushing cylinder is correspondingly connected with the guide rail sliding block.
The main shaft clamping and rotating mechanism further comprises a pneumatic transition shaft and a servo motor; the pneumatic transition shaft is arranged on the guide rail sliding block through a bearing, the pneumatic clamping jaw is arranged at the inner end of the pneumatic transition shaft, the pneumatic transition shaft is provided with a synchronizing wheel, the servo motor is connected with the synchronizing wheel through a synchronizing belt, and the outer end of the pneumatic transition shaft is provided with a pneumatic rotary joint capable of rotating relatively.
A method for positioning a transmission shaft by using transmission shaft positioning fixtures with different specifications and lengths of a water pump comprises the following steps:
1) After the material receiving table has a material sensing signal, the main shaft clamping and rotating mechanism is pushed by an air cylinder of the main shaft clamping and rotating mechanism to move forwards to the end face of the shaft to be jacked into the tailstock positioning mechanism to stop, and a clamping jaw on the main shaft clamping and rotating mechanism clamps the transmission shaft of the water pump;
2) The tailstock positioning mechanism is driven by the moving assembly to move forwards, and stops moving forwards after the tailstock positioning mechanism senses the end face of the shaft in place, so that a transmission shaft of the water pump is fixed;
3) A pair of counter photoelectric sensors are arranged on the tailstock positioning mechanism, when a transmission shaft of a water pump is fixed, the flat position of the shaft is detected under the pushing of a sliding table air cylinder, the main shaft clamping and rotating mechanism drives the shaft to rotate, and when the counter photoelectric sensors output signals, the shaft stops rotating, so that the shaft is positioned in the flat position.
Compared with the prior art, the invention has the following advantages:
the water pump transmission shaft positioning clamp with different specifications and lengths is reasonable in structural design, materials can be placed manually or placed by a manipulator, and after a material sensor senses materials, the clamp can be automatically clamped and positioned, so that the intelligent automation degree of industry is promoted, and the operation is simple and convenient; compared with the prior art, the structure is more stable, the feeding speed is higher, and the efficiency is higher.
Drawings
The following brief description of the drawings and reference numerals in the drawings forms a part of this specification:
FIG. 1 is a schematic view of the structure of the clamp of the present invention.
Fig. 2 is a schematic view of a transmission shaft according to the present invention.
Fig. 3 is a schematic structural view of the tailstock positioning mechanism of the present invention.
Fig. 4 is a schematic top view of the tailstock positioning mechanism of the present invention.
FIG. 5 is a schematic view of a positioning and adjusting structure of the jacking plate of the present invention.
Fig. 6 is a first structural view of the spindle clamping and rotating mechanism of the present invention.
Fig. 7 is a schematic structural view of a spindle clamping and rotating mechanism according to a second embodiment of the present invention.
Fig. 8 is a schematic view of the pneumatic transition shaft of the present invention.
In the figure:
1. a tailstock positioning mechanism; 2. a spindle clamping and rotating mechanism; 3. a Y-axis mobile module robot; 4. a water pump transmission shaft; 5. the main shaft clamping and rotating mechanism pushes the air cylinder; 6. a flat surface washing detection sensor; 7. a sliding table structure; 8. a base plate; 9. a drag chain; 10. a guide rail slider; 11. jacking a cylinder receiving table;
101. positioning a stop block; 102. an elastic buffer structure; 103. an end face sensor for detecting the in-place of a water pump transmission shaft; 104. finding and milling a flat surface sensor; 105. a sliding table cylinder; 106. the sensor jacking positioning adjusting structure 107, the air outlet dust removal joint 108 and the material receiving block;
202. a pneumatic rotary joint; 203. a synchronous belt; 204. a synchronizing wheel; 205. a servo motor; 206. a pneumatic transition shaft; 207. a pneumatic clamping jaw; 208. a fixing plate; 209. a dual bearing housing.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, the transmission shaft positioning fixture for water pumps with different specifications and lengths comprises a bottom plate 8, a tailstock positioning mechanism 1 and a spindle clamping and rotating mechanism 2 for respectively positioning two ends of a transmission shaft 4 of the water pump, wherein the tailstock positioning mechanism and the spindle clamping and rotating mechanism are slidably arranged on the bottom plate, the spindle clamping and rotating mechanism is a rotatable clamping structure, and a jacking cylinder receiving table 11 for supporting and positioning the corresponding end part of the transmission shaft is arranged in each of the tailstock positioning mechanism and the spindle clamping and rotating mechanism.
The tailstock positioning mechanism is movably arranged on the bottom plate through the Y-axis mobile module robot 3, specifically, the tailstock positioning mechanism is arranged on the bottom plate through a guide rail, and a drag chain 9 and a driving motor which are connected with the tailstock positioning mechanism are arranged on the bottom plate. The main shaft clamping and rotating mechanism is arranged on the bottom plate through a guide rail slide block 10, and the air cylinder is pushed to move through the main shaft clamping and rotating mechanism. And a flat surface washing detection sensor 6 is arranged on the tailstock positioning mechanism and can be movably arranged through a sliding table structure 7.
The jacking cylinder material receiving table comprises a jacking cylinder and a material receiving block 108 arranged at the upper end of a piston rod of the jacking cylinder, a positioning groove is formed in the material receiving block, the jacking cylinder material receiving table can be used for initially positioning the transmission shaft, the transmission shaft can be manually placed on the material receiving table, and the operation is simple and convenient.
The tailstock positioning mechanism comprises a tailstock and a positioning stop block 101 which is arranged on the tailstock and used for positioning the end part of the transmission shaft, and a positioning stop hole matched with one end part of the transmission shaft is formed in the positioning stop block; the outer side of the positioning block is arranged on the tailstock through an elastic buffer structure 102, and a water pump transmission shaft in-place detection end face sensor 103 is arranged on the tailstock corresponding to the positioning block hole; the movable buffer adjustment of location, through detecting the detection control of end face sensor, it is easy and simple to handle.
The tailstock positioning mechanism also comprises a milling flat surface sensor 104 for detecting the flat surface of the transmission shaft, the tailstock is provided with a sensor jacking positioning adjusting structure 106, the sensor jacking positioning adjusting structure can adjust the position of the sliding table cylinder 105 along the axial direction of the transmission shaft, and the milling flat surface sensor is arranged on the sliding table cylinder; the flat surface of the transmission shaft can be automatically detected by the flat surface searching and milling sensor to carry out positioning control. And an air outlet dust removal joint 107 for removing dust is arranged on the tailstock.
The main shaft clamping and rotating mechanism comprises a guide rail sliding block, a pneumatic clamping jaw 207 and a main shaft clamping and rotating mechanism pushing cylinder 5, the pneumatic clamping jaw is arranged on the guide rail sliding block, the main shaft clamping and rotating mechanism pushing cylinder is arranged on the bottom plate, and the end part of a piston rod of the main shaft clamping and rotating mechanism pushing cylinder is correspondingly connected with the guide rail sliding block.
The main shaft clamping and rotating mechanism also comprises a pneumatic transition shaft and a servo motor; be equipped with fixed plate 208 on the guide rail slider, the vertical setting of fixed plate is equipped with duplex bearing 209 on the fixed plate, and pneumatic transition shaft 206 is established on the fixed plate through duplex bearing, and pneumatic clamping jaw is established on pneumatic transition shaft inner end, is equipped with synchronizing wheel 204 on the pneumatic transition shaft, links to each other through hold-in range 203 between servo motor 205 and the synchronizing wheel, and the outer end of pneumatic transition shaft is equipped with the pneumatic rotary joint 202 of relative rotation.
A pneumatic rotary joint is adopted for transition of the gas circuit link, and a servo motor drives the gas circuit link to rotate; the winding of the air pipe pipeline is avoided in the rotating process, and the rotation with controllable angle is realized by adopting servo rotation. Through washing flat face detection sensor detection, wash flat face detection sensor and adopt the little facula of high accuracy to penetrate the photoelectricity and look for flat position, the mechanism is simple, and the response is stable, has avoided adopting high-cost detection methods such as vision.
The invention relates to a method for positioning a transmission shaft by using transmission shaft positioning fixtures with different specifications and lengths of a water pump, which comprises the following steps of:
1) After the material receiving table has a material sensing signal, the main shaft clamping and rotating mechanism is pushed by an air cylinder of the main shaft clamping and rotating mechanism to move forwards to the end face of the shaft to be jacked into the tailstock positioning mechanism to stop, and a clamping jaw on the main shaft clamping and rotating mechanism clamps the transmission shaft of the water pump;
2) The tailstock positioning mechanism is driven by the moving assembly to move forwards, and stops moving forwards after the tailstock positioning mechanism senses that the end face of the shaft is in place, so that a transmission shaft of the water pump is fixed;
3) A pair of counter photoelectric sensors are arranged on the tailstock positioning mechanism, when a transmission shaft of a water pump is fixed, the flat position of the shaft is detected under the pushing of a sliding table air cylinder, the main shaft clamping and rotating mechanism drives the shaft to rotate, and when the counter photoelectric sensors output signals, the shaft stops rotating, so that the shaft is positioned in the flat position.
According to the invention, materials can be placed manually or placed by a manipulator, and after the material inductor senses the materials, the clamp can automatically clamp and position, so that the intelligent automation degree of the industry is promoted, and the operation is simple and convenient; compared with the prior art, the structure is more stable, the feeding speed is higher, and the efficiency is higher.
Preferred specific examples are:
it mainly includes the triplex that its transmission shaft positioning fixture of different specification length of water pump is: a tailstock positioning mechanism 1, a main shaft clamping and rotating mechanism 2 and a Y-axis mobile module robot 3.
The action principle is as follows: the first part places a water pump transmission shaft on a material receiving table above a tailstock positioning mechanism and a main shaft clamping and rotating mechanism through a manual or mechanical arm, after the material receiving table has a material sensing signal, the main shaft clamping and rotating mechanism is pushed by an air cylinder of the main shaft clamping and rotating mechanism to move forwards to the shaft end face to be jacked to the tailstock positioning mechanism to stop, and a clamping jaw on the main shaft clamping and rotating mechanism clamps the transmission shaft of the water pump. And in the second part, the tailstock positioning mechanism moves forwards under the drive of the Y-axis moving module robot, and stops moving forwards after the tailstock positioning mechanism senses the end face of the shaft in place. And in the third part, the transmission shaft of the water pump is fixed by one action and two actions.
A pair of high-precision correlation photoelectricity (light spots are very thin and close to 0.1 mm) is arranged on two sliding table cylinders of the tailstock positioning mechanism, after a transmission shaft of a water pump is fixed, the shaft is subjected to flat position detection under the pushing of the sliding table cylinders, the main shaft clamping and rotating mechanism drives the shaft to rotate, and after the correlation photoelectricity has signal output, the shaft stops rotating, so that the shaft is subjected to flat position positioning.
The tailstock positioning mechanism comprises a positioning stop block; an elastic buffer mechanism; an end face sensor for detecting the in-place of a water pump transmission shaft; finding and milling a flat surface sensor; a sliding table cylinder; a sensor jacking positioning adjusting mechanism; discharging dust and removing dust; jacking cylinder connects material platform. The action principle is as follows: after the first part of action is completed, the tailstock positioning mechanism is driven by the Y-axis moving module robot to move forwards, opposite acting force is applied to the shaft under the pressure of the elastic buffer mechanism, and the positioning stop block is a V-shaped guide mechanism to ensure that the shaft is shifted in the moving direction. The sensing jacking positioning adjusting mechanism is used for positioning through the type groove of the plate, and the height of the u-shaped groove is adjusted.
The main shaft clamping and rotating mechanism comprises a main shaft clamping and rotating mechanism pushing cylinder, a pneumatic rotary joint, a synchronous belt, a synchronous wheel, a servo motor, a pneumatic transition shaft, a clamping jaw cylinder, a jacking cylinder receiving table, a double bearing seat, a fixing mechanism and a guide rail sliding block. The action principle is as follows: after the first part of action is completed, the jacking cylinder receives the material signal that the material platform responds to, press from both sides tight rotary mechanism of main shaft forward and move back the axle head face to the position of clamping jaw terminal surface laminating, the clamping jaw cylinder begins to press from both sides tight water pump transmission shaft, wait tailstock positioning mechanism give water pump transmission shaft after the signal that targets in place, the clamping jaw cylinder passes through hold-in range and synchronizing wheel and rotates under servo motor's effect, look for the position of washing the flat face, wait to find to wash the flat face completely up, tailstock positioning mechanism can give servo motor a stop rotation model, this is fixed with the complete location of water pump transmission shaft. Pneumatic rotary joint and pneumatic transition axle effect do: avoid servo motor to drive the trachea of clamping jaw cylinder and can twine together when rotatory, pneumatic rotatory adapter is mainly in order to dodge the trachea winding, and pneumatic transition axle is ventilated, leads to gas in the clamping jaw cylinder.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (7)
1. A method for positioning a transmission shaft by using transmission shaft positioning fixtures with different specifications and lengths of a water pump is characterized in that:
the water pump transmission shaft positioning fixtures with different specifications and lengths comprise a bottom plate, a tailstock positioning mechanism and a main shaft clamping and rotating mechanism, wherein the tailstock positioning mechanism and the main shaft clamping and rotating mechanism are used for respectively positioning two ends of a water pump transmission shaft;
the positioning method comprises the following steps:
1) After the material receiving table has a material sensing signal, the main shaft clamping and rotating mechanism is pushed by an air cylinder of the main shaft clamping and rotating mechanism to move forwards until the end face of the shaft is pushed to the tailstock positioning mechanism to stop, and a clamping jaw on the main shaft clamping and rotating mechanism clamps the transmission shaft of the water pump;
2) The tailstock positioning mechanism is driven by the moving assembly to move forwards, and stops moving forwards after the tailstock positioning mechanism senses that the end face of the shaft is in place, so that a transmission shaft of the water pump is fixed;
3) A pair of opposed photoelectric sensors is arranged on the tailstock positioning mechanism, when a transmission shaft of the water pump is fixed, the flat position of the shaft is detected under the pushing of a sliding table air cylinder, the main shaft clamping and rotating mechanism drives the shaft to rotate, and when the opposed photoelectric sensors output signals, the shaft stops rotating, so that the flat position of the shaft is positioned.
2. The positioning method of claim 1, wherein: the jacking cylinder material receiving table comprises a jacking cylinder and a material receiving block arranged at the upper end of a piston rod of the jacking cylinder, and a positioning groove is formed in the material receiving block.
3. The positioning method of claim 1, wherein: the tailstock positioning mechanism comprises a tailstock and a positioning stop block arranged on the tailstock and used for positioning the end part of the transmission shaft, and a positioning stop hole matched with one end part of the transmission shaft is formed in the positioning stop block.
4. The positioning method of claim 3, wherein: the outer side of the positioning stop block is arranged on the tailstock through an elastic buffer structure, and a water pump transmission shaft in-place detection end face sensor is arranged on the tailstock corresponding to the positioning stop hole.
5. The positioning method of claim 4, wherein: the flat surface sensor is further arranged on the detection device, the flat surface sensor is used for detecting the flat surface of the transmission shaft, the sensor jacking positioning adjusting structure is arranged on the tailstock, the sensor jacking positioning adjusting structure can follow the sliding table cylinder of the axial adjusting position of the transmission shaft, and the flat surface sensor is arranged on the sliding table cylinder in a finding and milling mode.
6. The positioning method of claim 1, wherein: the spindle clamping and rotating mechanism comprises a guide rail sliding block, a pneumatic clamping jaw and a spindle clamping and rotating mechanism pushing cylinder, the pneumatic clamping jaw is arranged on the guide rail sliding block, the spindle clamping and rotating mechanism pushing cylinder is arranged on the bottom plate, and the end part of a piston rod of the spindle clamping and rotating mechanism pushing cylinder is correspondingly connected with the guide rail sliding block.
7. The positioning method of claim 6, wherein: the main shaft clamping and rotating mechanism further comprises a pneumatic transition shaft and a servo motor; the pneumatic transition shaft is arranged on the guide rail sliding block through a bearing, the pneumatic clamping jaw is arranged at the inner end of the pneumatic transition shaft, the pneumatic transition shaft is provided with a synchronizing wheel, the servo motor is connected with the synchronizing wheel through a synchronizing belt, and the outer end of the pneumatic transition shaft is provided with a pneumatic rotary joint capable of rotating relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011607038.7A CN112809577B (en) | 2020-12-30 | 2020-12-30 | Positioning clamp and positioning method for transmission shafts of water pumps with different specifications and lengths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011607038.7A CN112809577B (en) | 2020-12-30 | 2020-12-30 | Positioning clamp and positioning method for transmission shafts of water pumps with different specifications and lengths |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112809577A CN112809577A (en) | 2021-05-18 |
| CN112809577B true CN112809577B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011607038.7A Active CN112809577B (en) | 2020-12-30 | 2020-12-30 | Positioning clamp and positioning method for transmission shafts of water pumps with different specifications and lengths |
Country Status (1)
| Country | Link |
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| CN (1) | CN112809577B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458816B (en) * | 2021-08-23 | 2023-06-13 | 芜湖哈特机器人产业技术研究院有限公司 | Pump shaft clamping flexible positioning method |
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| CH689639A5 (en) * | 1994-02-24 | 1999-07-30 | Bobst Sa | Device for lateral aligning of flat elements on a table. |
| CN203003528U (en) * | 2012-12-19 | 2013-06-19 | 昆山勇翔精密机械有限公司 | Cylinder four-axis clamp |
| CN203037458U (en) * | 2012-12-19 | 2013-07-03 | 陕西重型汽车有限公司 | Transmission shaft fixture and transmission shaft experiment table assembly |
| CN204183298U (en) * | 2014-11-13 | 2015-03-04 | 唐山龙润机械有限公司 | Fork shaft series products machining center universal clipping system |
| CN105033757B (en) * | 2015-07-01 | 2018-03-30 | 孙金曦 | A kind of numerical control scale-division pneumatic chuck |
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| US5854747A (en) * | 1995-05-23 | 1998-12-29 | Mitek Holdings, Inc. | Truss jigging system |
| CN103331589A (en) * | 2013-06-24 | 2013-10-02 | 深圳市君奕豪科技有限公司 | Mainboard test-based full-automatic plugging equipment for memory banks |
| CN103465013A (en) * | 2013-09-22 | 2013-12-25 | 吴江市博众精工科技有限公司 | Automatic screw locking machine |
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