Pump core assembly equipment
By designing a pump core assembly equipment including a mobile station, a guide rod mount, a silicone assembly mechanism and a guide column assembly mechanism, the problems of low efficiency and difficulty of assembly of the pain-allergic pump pump core are solved, efficient and accurate assembly of the pump core is achieved, and the quality stability of the product is improved.
Patent Information
- Application Number
- CN201911276623.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-12-12
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2039-12-12
AI Technical Summary
In the prior art, the assembly efficiency of the analgesic pump core is low, difficult, and it is easy to cause uneven assembly of the silicone sleeve, affecting the quality stability of the pump core.
A pump core assembly equipment is designed, including a mobile station, a guide rod mounting base, a silicone assembly mechanism and a guide column assembly mechanism. Through the use of a reversing drive mechanism and high-pressure gas, the automatic assembly of the silicone sleeve and the guide rod and the guide column is realized.
It effectively improves the efficiency and accuracy of pump core assembly, reduces the labor intensity of employees, reduces the residue of pollutants, and improves the quality stability of pump core.
Smart Images

Figure CN110815841B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of tool equipment, and more specifically, to a pump core assembly device. Background Art
[0002] Analgesia pump is an intelligent infusion device. It is a special medical device that uses mechanical driving force to accurately control the number of infusion drops or infusion flow rate to ensure that the dose enters the patient's body accurately and safely. The clinical application of infusion pumps has greatly improved the accuracy, safety and quality of care of infusion.
[0003] The analgesic pump has an infusion pump core, which includes a guide column, a guide rod, a silicone sleeve and two silicone hoops, wherein the guide rod is a three-section two-step columnar structure, the guide column is divided into two sections, a first section of a column head with a small diameter and a second section of a column body with a large diameter tapered section, the guide column has a column through hole, the column body has two through holes passing through the guide column and connected to the outside, the tubular silicone sleeve has a sleeve through hole, and its inner diameter in a free state is smaller than the outer diameter of the middle section of the guide rod and the column body of the guide column, and larger than the prism part of the upper part of the guide rod. The middle section of the guide rod is fitted with the silicone sleeve, and the silicone sleeve fitting position is defined by its second step, the upper part of the guide rod above the first step is inserted into the hollow guide column, which plays a reinforcing and guiding role, and the guide column is inserted until the end face of the tapered open end contacts the first step of the guide rod. The length of the silicone sleeve is less than the sum of the lengths of the middle section of the guide rod and the column body of the guide rod that have been assembled, the silicone sleeve needs to be evenly fitted outside the ends of the guide column and the guide rod, and the silicone hoops are respectively fitted outside the upper end and the lower end of the rubber sleeve, thereby forming the entire infusion pump core. The assembly technology of the silicone sleeve is the core technology of the entire pump core assembly.
[0004] In the prior art, most of the analgesic pump cores are assembled manually, which has the following defects:
[0005] Due to the viscoelasticity of the silicone sleeve itself, the assembly efficiency is low;
[0006] The assembly is difficult and the labor intensity of employees is high;
[0007] Some lubricants are needed, and other substances are likely to remain in the silicone sleeve and guide column, causing pollution to the pump core of the infusion pump, which poses certain safety hazards;
[0008] The quality stability is poor and the thickness of the silicone set is uneven after assembly.
[0009] In summary, how to effectively solve the problem of difficulty in assembling a pump core is an issue that technical personnel in this field urgently need to solve. Summary of the invention
[0010] In view of this, an object of the present invention is to provide a pump core assembly device, which can effectively solve the problem of difficulty in assembling the pump core.
[0011] In order to achieve the above object, the present invention provides the following technical solutions:
[0012] A pump core assembly device, comprising:
[0013] A moving platform, equipped with a guide rod mounting seat;
[0014] A transposition drive mechanism, used for driving the movable platform to move the guide rod mounting seat located at the first mounting position to the second mounting position;
[0015] A silicone sleeve assembly mechanism is arranged at the first installation position, comprising a silicone sleeve fixture for covering the upper end of the silicone sleeve and a silicone sleeve pressure mechanism for driving the silicone sleeve fixture to move downward, wherein the silicone sleeve fixture is provided with a first air guide channel for communicating with the silicone sleeve;
[0016] The guide post assembly mechanism is arranged at the second installation position, and comprises a guide post clamp for fixing the guide post, a guide post lifting mechanism for driving the guide post clamp to press down, and a second air guide channel for communicating with the inside of the guide post.
[0017] When the pump core assembly device is used, the guide rod mounting seat is initially located at the first mounting position, and the silicone sleeve assembly mechanism completes the assembly of the silicone sleeve and the guide rod, and then the transposition drive mechanism drives the guide rod mounting seat to move to the second mounting position. At the second mounting position, the guide column assembly mechanism completes the assembly of the guide column and the above-assembled guide rod and silicone sleeve combination mechanism. In the pump core assembly device, a silicone sleeve assembly mechanism and a guide column assembly mechanism are respectively equipped to enable the pump core to be assembled in an orderly and quick manner, and both assembly mechanisms utilize the characteristics of the silicone sleeve and repeated high-pressure gas to complete the two-step assembly. Therefore, the pump core assembly device can effectively solve the problem of difficulty in pump core assembly.
[0018] Preferably, the silicone sleeve pressure mechanism includes a silicone sleeve movable seat, a silicone sleeve lifting and lowering driving mechanism for driving the silicone sleeve movable seat to move up and down, a silicone sleeve positioning device for preventing the silicone sleeve movable seat from moving downward and buffering and limiting the position, and a silicone sleeve assembly cylinder installed on the silicone sleeve movable seat to drive the silicone sleeve clamp to reciprocate downward pressing motion.
[0019] Preferably, the silicone sleeve clamp is a tube structure, the upper end of the tube mouth is a threaded mounting hole, the middle tube cavity is a limiting hole that matches the silicone sleeve and the upper end forms a limiting shoulder for abutting against the upper end of the silicone sleeve, the lower tube cavity is a trumpet-shaped guide hole that matches the limiting hole, and a vent is provided on the middle side wall of the upper tube cavity.
[0020] Preferably, the guide rod mounting seat includes a base column connected to the movable platform through positioning holes and threaded holes, a conical column fixed to the upper end of the base column to fix the bottom of the guide rod, and a limiting ring installed at the upper end of the base column, and a receiving groove whose size and shape match the flange at the lower end of the guide rod is formed between the inner wall of the limiting ring and the outer wall of the conical column, so as to prevent the silicone sleeve from falling by abutting against the silicone sleeve through the upper side surface.
[0021] Preferably, it further comprises a first clamping assembly for clamping the lower end of the silicone sleeve on the guide rod mounting seat and the guide rod, and the mobile platform is provided with a first clamping claw driving mechanism for driving the first clamping assembly to approach the guide rod mounting seat.
[0022] Preferably, a guide post mounting seat is also provided on the movable platform, and when the guide rod mounting seat is located at the first mounting position, the guide post mounting seat is located at the second mounting position, and the guide post clamp is a conical sleeve structure that can be sleeved on the outside of the guide post to be plugged and fixed with the guide post.
[0023] Preferably, the guide column lifting mechanism can drive the conical sleeve structure to press down reciprocally.
[0024] Preferably, the guide post assembly mechanism further comprises a push rod mechanism for pushing the guide post out of the tapered sleeve structure so as to be inserted into place with the guide rod.
[0025] Preferably, it also includes a second clamping assembly, which, after entering the second installation position, can clamp and fix the upper end of the silicone sleeve on the outside of the conical sleeve structure after the conical sleeve structure is pressed down to insert the silicone sleeve, so as to tightly wrap the outside of the conical sleeve structure. A lifting drive mechanism is also provided between the conical sleeve structure and the guide column lifting mechanism. A limiting ring for abutting against the upper end of the silicone sleeve is fixedly installed on the driving end of the guide column lifting drive mechanism. When the conical sleeve structure is lowered to be inserted into the silicone sleeve, the limiting ring is arranged on the outside of the lower part of the conical sleeve structure.
[0026] Preferably, a controller is further included to control the following steps in sequence when the guide rod mounting seat moves to the second mounting position:
[0027] Control the guide post lifting mechanism to descend, and at least drive it to descend until the lower end surface of the guide post on the conical sleeve structure abuts against the upper end surface of the silicone sleeve;
[0028] Introducing high-pressure gas into the second gas guide channel;
[0029] Controlling the guide column lifting mechanism to start, so as to drive the conical sleeve structure to reciprocate and feed downward, until the lower end of the conical sleeve structure is inserted to a predetermined depth of the silicone sleeve, and at this time, stopping the introduction of high-pressure gas into the second air guide channel;
[0030] Controlling the second clamping assembly to clamp the outer side of the plug-in portion of the silicone sleeve and the conical sleeve structure, so that the silicone sleeve is tightly wrapped around the outer side of the conical sleeve structure;
[0031] Control the second clamping assembly and the conical sleeve structure to synchronously move upward by a predetermined distance, and fill the lower part of the silicone sleeve with high-pressure gas within a predetermined pressure range;
[0032] Controlling the push rod mechanism to start, so as to extend into the conical sleeve structure to push the guide post out of the conical sleeve structure and to drive it downward to be inserted into place with the guide rod;
[0033] The second clamping assembly is controlled to be loosened and the filling of high-pressure gas is stopped, and the recovery drive mechanism is controlled to start, so as to drive the conical sleeve structure to move upward relative to the limit ring to separate from the silicone sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0035] Figure 1 A schematic diagram of the structure of a pump core assembly device provided by an embodiment of the present invention;
[0036] Figure 2 A schematic diagram of the assembly of a pump core provided by an embodiment of the present invention;
[0037] Figure 3 A schematic diagram of the installation structure of the fixture transfer mechanism provided in an embodiment of the present invention;
[0038] Figure 4 A schematic diagram of the installation structure of the silicone sleeve assembly mechanism provided in an embodiment of the present invention;
[0039] Figure 5 A schematic diagram of the installation structure of the guide column assembly mechanism provided in an embodiment of the present invention;
[0040] Figure 6 A schematic cross-sectional structure diagram of a silicone sleeve clamp provided in an embodiment of the present invention;
[0041] Figure 7 A schematic cross-sectional structure diagram of a guide post clamp provided in an embodiment of the present invention.
[0042] The following are marked in the accompanying drawings:
[0043] Guide column 1, silicone sleeve 2, guide rod 3, frame 4, mounting plate assembly 5, fixture transfer mechanism 6, silicone sleeve assembly mechanism 7, guide column assembly mechanism 8;
[0044] Transposition drive mechanism 601, first pen-shaped cylinder 602, first pneumatic clamp 603, second pen-shaped cylinder 701, silicone sleeve assembly cylinder 702, third pen-shaped cylinder 802, fourth pen-shaped cylinder 801, first standard cylinder 803, servo motor drive module 804, second standard cylinder 805, second pneumatic clamp 806, third pneumatic clamp 807;
[0045] The small diameter section of the column head 1-1, the column body through hole 1-2, the large diameter tapered section of the column body 1-3, the hexagonal column section 3-1, the first step 3-2, the tapered cylindrical section 3-3, the second step 3-4, the table 4-1, the mechanism mounting plate 5-1, the first rib plate 5-2, the second rib plate 5-3, the guide column mounting seat 6-1, the moving table 6-2, the limit ring 6-3, the cylinder 6-4, the first clamping jaw group 6-5, the first positioning device 6-6, the first linear guide 6-7, the cylinder mounting plate 6-8, the second positioning device 6-10, the second linear guide 6-11, the silicone sleeve fixture 7-1, the silicone sleeve fixture mounting plate 7-2, the third linear guide 7-3, the silicone sleeve positioning device 7-4, the silicone sleeve movable seat 7-5, the fourth linear guide 8-1, the first integrated mounting plate 8-2, the first movable mounting plate 8- 3. Mobile mounting base plate 8-4, first copper sleeve fixture 8-5, first special-shaped ring 8-6, fifth linear guide rail 8-7, second clamping jaw group 8-8, third clamping jaw group 8-9, first copper sleeve mounting block 8-10, second special-shaped ring 8-11, second copper sleeve fixture 8-12, second copper sleeve mounting block 8-13, first sliding column 8-14, second movable mounting plate 8-15, sixth linear guide rail 8-16, second sliding column 8-17, second L-shaped rib plate 8-18, second cylinder mounting plate 8-19, first cylinder mounting plate 8-20, first L-shaped rib plate 8-21, linear bearing 8-23, first clamping jaw mounting plate 8-24, second clamping jaw mounting plate 8-25, vent 7-1-1, trumpet-shaped guide hole 7-1-2, limit shoulder 7-1-3, threaded mounting hole 7-1-4. DETAILED DESCRIPTION
[0046] The embodiment of the present invention discloses a pump core assembly device to effectively solve the problem of difficulty in assembling the pump core.
[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0048] See also Figure 1-Figure 7 , Figure 1 A schematic diagram of the structure of a pump core assembly device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the assembly of a pump core provided by an embodiment of the present invention; Figure 3 A schematic diagram of the installation structure of the fixture transfer mechanism provided in an embodiment of the present invention; Figure 4 A schematic diagram of the installation structure of the silicone sleeve assembly mechanism provided in an embodiment of the present invention; Figure 5 A schematic diagram of the installation structure of the guide column assembly mechanism provided in an embodiment of the present invention; Figure 6 A schematic cross-sectional structure diagram of a silicone sleeve clamp provided in an embodiment of the present invention; Figure 7 A schematic cross-sectional structure diagram of a guide post clamp provided in an embodiment of the present invention.
[0049] In a specific embodiment, this embodiment provides a pump core assembly device. Specifically, the assembly of the pump core mainly assembles three components in two steps. The three components are: a silicone sleeve 2, a guide rod 3 and a guide column 1. In the first step, the silicone sleeve 2 is sleeved and fixed on the guide rod 3. In the second step, the guide column 1 is sleeved on the guide rod 3 and inserted between the silicone sleeve 2 and the guide rod 3 to be plugged and matched with the guide rod 3.
[0050] Specifically, the guide rod 3 is a three-section two-step columnar structure, between the first step 3-2 and the second step 3-4 of the guide rod 3 is a tapered cylindrical section 3-3, and the portion above the first step 3-2 is a hexagonal column section 3-1. The guide column 1 is divided into two sections: the first section column head small diameter section 1-1 and the second section column body large diameter tapered section 1-3. The guide column 1 has a column through hole, and the column body has a through hole 1-2 that passes through the guide column 1 and is connected to the outside. The silicone sleeve 2 has a sleeve through hole, and its inner diameter is smaller than the outer diameter of the middle section of the guide rod 3 and the column body of the guide column 1, and larger than the upper part of the guide rod 3. The middle section of the guide rod 3 is fitted with the silicone sleeve 2, and the fitting position of the silicone sleeve 2 is defined by its second step 3-2. The hexagonal column 3-1 above the first step 3-2 of the guide rod 3 is inserted into the guide column 1 to play a reinforcing and guiding role. The guide column 1 is inserted until the end face of the tapered open end contacts the first step 3-2 of the guide rod 3. The length of the silicone sleeve 2 is less than the sum of the lengths of the middle section of the assembled guide rod 3 and the body of the guide column 1 , and the silicone sleeve 2 needs to be evenly sleeved on the outer periphery of the guide column 1 and the guide rod 3 .
[0051] Based on the pump core assembly, the pump core assembly equipment provided in this embodiment mainly includes a moving platform 6-2, a silicone sleeve assembly mechanism 7, a guide column assembly mechanism 8 and a transposition drive mechanism 601.
[0052] The guide rod mounting seat and the guide post mounting seat 6-1 are arranged on the moving platform 6-2. In the initial state, that is, at least in the operation of the first step of assembly, the guide rod mounting seat is located at the first mounting position, and the guide post mounting seat 6-1 is located at the second mounting position. When the guide rod mounting seat is located at the first mounting position, the guide rod 3 and the guide rod mounting seat, and the silicone sleeve 2 and the guide rod 3 can be installed in sequence, while the guide post mounting seat 6-1 is located at the second mounting position, and the guide post 1 and the guide post mounting seat 6-1 can be installed.
[0053] The transposition drive mechanism 601 is used to drive the moving platform 6-2 to move, so that the moving platform 6-2 drives the guide rod mounting seat and the guide post mounting seat 6-1 to move, and the moving platform 6-2 can move so that the guide rod mounting seat located at the first mounting position can move to the second mounting position, so that the assembled silicone sleeve and the guide rod follow the guide rod mounting seat to move to the second mounting position, so as to perform the second step of installation.
[0054] The silicone sleeve assembly mechanism 7 is arranged at the first installation position, that is, it is used to realize the installation of the silicone sleeve 2 and the guide rod 3 at the first installation position. Specifically, the silicone sleeve assembly mechanism 7 includes a silicone sleeve clamp 7-1 for covering the upper end of the silicone sleeve 2 and a silicone sleeve pressure mechanism for driving the silicone sleeve clamp 7-1 to move downward. The silicone sleeve clamp 7-1 is provided with a first air guide channel for communicating with the silicone sleeve 2. In actual operation, the silicone sleeve 2 is clamped on the silicone sleeve clamp 7-1, and the guide rod 3 is assembled to the guide rod mounting seat. Then, the silicone sleeve pressure mechanism drives the silicone sleeve clamp 7-1 to move downward, and introduces high-pressure gas into the first air guide channel, so that the high-pressure gas is introduced into the silicone sleeve 2, and then the lower end of the silicone sleeve 2 is expanded, so that the silicone sleeve 2 gradually moves downward, and then gradually completes the assembly with the guide rod 3.
[0055] The guide post assembly mechanism 8 is arranged at the second installation position, and the guide post assembly mechanism includes a guide post clamp for fixing the guide post (specifically, the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12), a guide post lifting mechanism for driving the guide post clamp to press down, and a second air guide channel for communicating with the inside of the guide post. After the guide post 1 is placed on the guide post mounting seat, the guide post clamp moves down so that the guide post 1 is fixed on the guide post clamp. It should be noted that the guide post mounting seat may not be provided, and the guide post 1 is directly installed with the guide post clamp. After the installation is completed, the transposition drive mechanism 601 drives the movable table 6-2 to move the guide rod mounting seat to the second mounting position, and then the guide column lifting mechanism drives the guide column clamp to descend, so that the guide column 1 is mounted on the upper end of the guide rod 3, and then the lower end of the guide column 1 is against the silicone sleeve 2. At this time, high-pressure gas is filled into the guide column 1 through the second air guide channel, and the high-pressure gas enters the silicone sleeve 2, causing the silicone sleeve 2 to expand, and then under the action of the guide column lifting mechanism and other driving mechanisms, the guide column 1 is gradually inserted into the silicone sleeve 2 until the assembly is completed.
[0056] When the pump core assembly device is used, the guide rod mounting seat is initially located at the first mounting position, and the silicone sleeve assembly mechanism 7 is used to complete the assembly of the silicone sleeve 2 and the guide rod 3, and then the transposition drive mechanism 601 drives the guide rod mounting seat to move to the second mounting position. At the second mounting position, the guide column assembly mechanism 8 completes the assembly of the guide column 1 with the above-assembled guide rod 3 and silicone sleeve 2 combination mechanism. In the pump core assembly device, the silicone sleeve assembly mechanism 7 and the guide column assembly mechanism 8 are respectively equipped to enable the pump core to be assembled in an orderly and quick manner, and both assembly mechanisms utilize the characteristics of the silicone sleeve 2 and repeated high-pressure gas to complete the two-step assembly. Therefore, the pump core assembly device can effectively solve the problem of the difficulty of pump core assembly.
[0057] Furthermore, considering that the silicone sleeve 2 is relatively soft, it is inconvenient to install. Based on this, the silicone sleeve pressure mechanism preferably includes a silicone sleeve movable seat 7-5, a silicone sleeve lifting drive mechanism (such as a second pen-shaped cylinder 701) for driving the silicone sleeve movable seat 7-5 to move up and down, a silicone sleeve positioning device 7-4 for preventing the silicone sleeve movable seat 7-5 from moving downward and buffering and limiting, and a silicone sleeve assembly cylinder 702 installed on the silicone sleeve movable seat 7-5 for driving the silicone sleeve fixture 7-1 to reciprocate downward movement. The silicone sleeve lifting drive mechanism is used to drive the silicone sleeve movable seat 7-5 to move up and down, so as to drive the silicone sleeve fixture 7-1 to fall until the silicone sleeve 2 can be abutted against the guide rod 3, and after the assembly is completed, it moves upward to drive the silicone sleeve fixture 7-1 to break away from contact with the silicone sleeve 2 and make room for the lower space to avoid interference with subsequent operations. After the silicone sleeve movable seat 7-5 moves down to the point where the silicone sleeve 2 abuts against the guide rod 3, the silicone sleeve positioning device 7-4 detects a positioning signal to control the silicone sleeve lifting drive mechanism to stop driving. Then the silicone sleeve assembly cylinder 702 continues to work. The silicone sleeve assembly cylinder 702 is installed between the silicone sleeve movable seat 7-5 and the silicone sleeve fixture 7-1. After starting, it drives the silicone sleeve fixture 7-1 to be pressed down to push the silicone sleeve 2 to gradually fit on the corresponding part of the guide rod 3. The silicone sleeve assembly cylinder 702 does not continuously press down the silicone sleeve fixture 7-1, but reciprocates to press down the silicone sleeve fixture 7-1, such as descending a long distance each time, then ascending a short distance, then descending a long distance, and then ascending a short distance, so as to gradually push the silicone sleeve fixture 7-1 to reciprocate and descend.
[0058] In order to better introduce the high-pressure gas into the silicone sleeve to expand the silicone sleeve, the silicone sleeve fixture 7-1 is preferably a tube structure, and the upper end of the tube mouth is a threaded mounting hole 7-1-4, which is threadedly connected to the driving end of the silicone sleeve matching cylinder 702. The middle tube cavity of the silicone sleeve fixture 7-1 is a limiting hole that matches the silicone sleeve, and the upper end forms a limiting shoulder 7-1-3 for abutting against the upper end of the silicone sleeve. The lower tube cavity is a trumpet-shaped guide hole 7-1-2 that matches the limiting hole, and the middle side wall of the upper tube cavity is provided with a vent 7-1-1, so that the tube cavity forms a first air guide channel. The limiting hole is a cylindrical hole, and the diameter is larger than the diameter of the upper tube cavity to form a limiting shoulder. The trumpet-shaped guide hole can be a conical hole.
[0059] Further, as described above, the guide rod mounting seat is installed on the moving platform 6-2 to be relatively fixed with the moving platform 6-2. And it is used to position and support the guide rod 3. In order to better position and support the guide rod 3, the guide rod mounting seat preferably includes a bottom column (such as a cylinder 6-4) connected to the moving platform 6-2 through a positioning hole and a threaded hole, a conical column fixed to the upper end of the bottom column to plug and fix the bottom of the guide rod 3, and a limiting ring piece 6-3 installed at the upper end of the bottom column, wherein a receiving groove of a size and shape matching the flange at the lower end of the guide rod 3 (the part below the second step 3-4) is formed between the inner wall of the limiting ring piece 6-3 and the outer wall of the conical column, so as to prevent the silicone sleeve from falling by abutting against the silicone sleeve 2 through the upper side surface, wherein the flange at the lower end of the guide rod 3 is the second step 3-4.
[0060] Furthermore, it is preferred that a first clamping assembly is installed on the mobile platform 6-2 to clamp the lower end of the silicone sleeve on the guide rod mounting seat and the guide rod, that is, after completing the first step of assembly, the lower end of the silicone sleeve 2 wrapped around the cylindrical section 3-3 is clamped to prevent separation and loosening. The mobile platform is provided with a first clamping claw driving mechanism for driving the first clamping assembly to approach the guide rod mounting seat.
[0061] As described above, when a guide post clamp is provided, the guide post 1 is assembled onto the guide post clamp. Then the guide post clamp is moved downward to achieve relative fixation with the guide post 1. The guide post 1 and the guide post clamp can be fixed by clamping, magnetic fixation, snap-on fixation, etc. The specific fixing method can be set as needed. In order to better fix the guide post 1, the guide post clamp is preferably a conical sleeve structure (such as the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12) that can be sleeved on the outside of the guide post 1 to be plugged and fixed with the guide post. Through the conical sleeve structure, it is sleeved on the outer side of the upper part of the guide post 1 to achieve an interference fit with the guide post 1. And because it is a conical sleeve structure, while being fixed with the guide post 1, the guide post 1 can also be positioned.
[0062] As mentioned above, considering the softness of the silicone sleeve 2, in order to better insert the guide post 1 into the silicone sleeve 2, it is preferred that the guide post lifting mechanism (i.e., the servo motor drive module 804 described below) can also drive the conical sleeve structure to reciprocate downward, wherein the reciprocating downward pressing method is as described above, after pressing down a long distance, it rises a short distance, and so on, to achieve reciprocating downward pressing.
[0063] Furthermore, considering that it is necessary to separate the conical sleeve structure from the guide post 1 in the later stage of installation, in order to facilitate separation, it is preferred that the guide post assembly mechanism 8 also includes a push rod mechanism for pushing the guide post 1 from the conical sleeve structure to be inserted into place with the guide rod 3, that is, inserting from the upper end of the conical sleeve structure into the conical sleeve to abut against the upper end of the guide post 1, and applying a downward force to the guide post relative to the conical sleeve structure to push the guide post 1 from the conical sleeve structure. In order to better set the second air guide channel, the push rod of the push rod mechanism can be hollow to form a second air guide channel. The specific push rod mechanism includes a sliding column (such as a first sliding column 8-14, a second sliding column 8-17) and a driving cylinder (such as a third pen-shaped cylinder 802, a fourth pen-shaped cylinder 801) for driving the sliding column to move up and down.
[0064] Further, considering that when the guide post 1 is pushed to move downward relative to the silicone sleeve 2, a dynamic friction force is formed between the silicone sleeve 2 and the guide post 1. According to the principle of force, the two ends of the lower part of the silicone sleeve 2 are subjected to extrusion force, causing the lower end of the silicone sleeve 2 to be compressed, resulting in the later assembly effect not meeting the requirements. Based on this, it is preferred that a second clamping assembly is also included here. After entering the second installation position, the second clamping assembly can be pressed down on the conical sleeve structure to insert the silicone sleeve 2 and then clamp the upper end of the silicone sleeve 2 to the outside of the conical sleeve structure to be tightly wrapped around the outside of the conical sleeve structure. At this time, the guide post re-pressing mechanism or the guide post lifting mechanism can be controlled to drive the conical sleeve structure to move upward relative to the moving platform 6-2, so as to drive the second clamping assembly and the conical sleeve structure to move upward synchronously. Because the second clamping assembly clamps and fixes the silicone sleeve, the lower section of the silicone sleeve is stretched to at least restore the normal extension state. Further, in order to facilitate the further installation of the guide post 1, the rising distance can be increased to stretch the lower section of the silicone sleeve 2.
[0065] Furthermore, considering that after the lower end of the conical sleeve structure is inserted into the upper end of the silicone sleeve 2, when the guide column 1 is installed, the conical sleeve structure needs to be pulled out of the silicone sleeve 2. Because of the friction between the two, the upper end of the silicone sleeve 2 will be stretched upward, resulting in the upper end of the silicone sleeve 2 being uncontrollable. Based on this, it is preferred that a recovery drive mechanism is also provided between the conical sleeve structure and the guide column lifting mechanism. A limit ring for abutting against the upper end of the silicone sleeve is fixedly installed at the driving end of the guide column lifting drive mechanism. When the conical sleeve structure descends to be inserted into the silicone sleeve, the limit ring is arranged on the outer side of the lower part of the conical sleeve structure, so that the guide column lifting drive mechanism drives the conical sleeve structure to descend to be inserted into the silicone sleeve. When the upper end of the silicone sleeve 2 is driven to rise to abut against the upper end of the limit ring, the recovery drive mechanism drives the conical sleeve structure to move upward relative to the driving end of the guide column lifting mechanism to complete the separation of the conical sleeve structure from the silicone sleeve. At this time, the upper end of the silicone sleeve is abutted against the limit ring, so the upper end position remains unchanged.
[0066] Specifically, the limiting ring, the second clamping assembly, the lifting drive mechanism and the push rod mechanism are all fixedly mounted on the driving end of the guide column lifting mechanism, wherein the driving end of the push rod mechanism is provided with a push rod, wherein the conical sleeve structure is mounted on the driving end of the lifting drive mechanism.
[0067] Furthermore, in order to better implement the above operation, it is preferred that a controller is further provided. Specifically, the controller is used to control the following steps in sequence when the guide rod mounting seat moves to the second mounting position:
[0068] Step 1: Control the guide post lifting mechanism to descend, and at least drive it down until the lower end surface of the guide post 1 on the conical sleeve structure abuts against the upper end surface of the silicone sleeve 2.
[0069] Step 2: Introduce high-pressure gas into the second air guide channel; specifically, the high-pressure gas may be 0.6 MPa (megapascals). It should be noted that, in order to facilitate the subsequent guide column assembly, the first clamping assembly may still be clamped on the lower end of the silicone sleeve 2 to ensure that the lower end of the silicone sleeve 2 is tightly wrapped around the guide rod 3 to ensure a sealed contact between the lower end of the silicone sleeve 2 and the guide rod 3.
[0070] Step 3: Control the guide column lifting mechanism to start, so as to drive the conical sleeve structure to reciprocate and feed downward, until the lower end of the conical sleeve structure is inserted into the silicone sleeve 2 to a predetermined depth, and at this time, stop passing high-pressure gas into the second air guide channel. Of course, in actual operation, the lower end of the guide column is first inserted into the silicone sleeve, and then the lower end of the conical sleeve structure is inserted into the silicone sleeve. When the depth of the conical sleeve structure inserted into the silicone sleeve reaches a predetermined depth, stop passing gas into the second air guide channel.
[0071] Step 4: Control the second clamping assembly to clamp the silicone sleeve 2 on the outside of the plug-in part of the conical sleeve structure, so that the silicone sleeve 2 is tightly wrapped around the outside of the conical sleeve structure, so that the upper end of the silicone sleeve and the conical sleeve structure are sealed and relatively fixed.
[0072] Step 5: Control the second clamping assembly and the conical sleeve structure to move up a predetermined distance synchronously, and introduce high-pressure gas into the second air guide channel. After the conical sleeve structure moves up a predetermined distance, the lower section of the silicone sleeve is slightly stretched, and because of the introduction of high-pressure gas, the silicone sleeve is slightly expanded radially.
[0073] Step 6: Control the push rod mechanism to start, extend into the conical sleeve structure to push the guide post out of the conical sleeve structure and press down to drive it into place with the guide rod. At this time, the push rod mechanism is used to push the guide post into place, and the silicone sleeve expands, so the assembly is convenient and quick.
[0074] Step seven: Control the second clamping assembly to loosen and stop filling with high-pressure gas, control the recovery drive mechanism to start, so as to drive the conical sleeve structure to move upward relative to the limit ring to disengage from the silicone sleeve to complete the installation, and then control the recovery drive mechanism, the push rod mechanism, and the guide column lifting mechanism to reset, and control the transposition drive mechanism to reset.
[0075] In a specific embodiment, the automatic assembly equipment of the silicone sleeve and the guide rod and guide column provided by the present invention includes: a frame 4, a mechanism mounting plate 5, a fixture transfer mechanism 6, a silicone sleeve assembly mechanism 7, and a guide column assembly mechanism 8.
[0076] The frame 4 is a table-type setting, and a table top 4-1 is horizontally arranged on it; the mounting plate assembly 5 is installed on the table top 4-1, and the mounting plate assembly 5 mainly includes a mechanism mounting plate 5-1, a first rib plate 5-2 and a second rib plate 5-3, wherein a corresponding air avoidance groove is arranged on the side of the mechanism mounting plate 5-1 close to the table top 4-1, wherein the avoidance groove is used to avoid the first clamping assembly and its corresponding structure, and the first rib plate 5-2 and the second rib plate 5-3 are arranged on both sides of the rear part, and the first rib plate 5-2, the second rib plate 5-3 and the mechanism mounting plate 5-1 are all vertically placed on the table top 4-1, wherein the first rib plate 5-2 and the second rib plate 5-3 are both vertically arranged with the mechanism mounting plate 5-1 and the table top 4-1, and the two right-angle edges of the first rib plate 5-2 and the second rib plate 5-3 are respectively connected to the mechanism mounting plate 5-1 and the table top 4-1.
[0077] The fixture transfer mechanism 6 is horizontally arranged on the table of the frame 4, and mainly includes a moving table 6-2, a guide rod mounting seat, a guide column mounting seat 6-1, a transposition drive mechanism 601, a first positioning device 6-6, a second positioning device 6-10 and a second linear guide rail 6-11.
[0078] The moving platform 6-2 is slidably connected with the table 4-1 through the second linear guide rail 6-11, so that the moving platform 6-2 moves smoothly and stably. The transposition drive mechanism 601 is used to drive the moving platform 6-2 to slide along the second linear guide rail 6-11, so that the guide rod mounting seat on the moving platform 6-2 can slide between the first mounting position and the second mounting position. The first positioning device 6-6 and the second positioning device 6-10 are mainly used to control the moving position of the moving platform 6-2, so that, driven by the moving platform 6-2, when the guide rod mounting seat moves from the second mounting position to the first mounting position, the first positioning device 6-6 detects the position of the moving platform 6-2 to control the transposition drive mechanism 601 to stop driving; and driven by the moving platform 6-2, when the guide rod mounting seat moves from the first mounting position to the second mounting position, the second positioning device 6-10 detects the position of the moving platform to control the transposition drive mechanism 601 to stop driving.
[0079] Along the guiding direction of the second linear guide rail 6-11, two guide post mounting seats 6-1 are arranged in parallel, and two guide rod mounting seats are arranged in parallel. And the distance between the two guide post mounting seats 6-1 should be equal to the distance between the two guide rod mounting seats to ensure corresponding arrangement.
[0080] Specifically, the guide rod mounting seat includes a cylinder 6-4 for mounting on the mobile platform 6-2, a positioning hole and a threaded hole are provided at the bottom of the cylinder 6-4, a conical column is provided at the top of the cylinder 6-4 for fixing the guide rod 3, and a limiting ring piece 6-3 is installed at the top of the cylinder 6-4, the inner diameter of which is slightly larger than the outer diameter of the second step 3-4 of the guide rod 3, the outer diameter is the same as the outer diameter of the cylinder 6-4, and the height is the same as the thickness of the second step 3-4 of the guide rod 3, and is used for positioning the lower end of the guide rod 3 and limiting the insertion depth of the silicone sleeve 2. Correspondingly, the guide column mounting seat has a cylindrical structure for mounting on the mobile platform 6-2, a positioning hole and a threaded hole are provided at the bottom of the cylindrical structure, and a conical structure is provided at the top of the cylindrical structure for fixing the guide column 1.
[0081] The clamping group of the fixed guide rod 3 is provided with two groups of clamping jaws to clamp the silicone sleeves on the two guide rod mounting seats respectively. Specifically, the two groups of first clamping jaws 6-5 are respectively installed on two first pneumatic clamping jaws 603. The first pneumatic clamping jaws 603 are used to drive the two first clamping jaws of a group of first clamping jaws 6-5 to move toward each other to achieve clamping, or drive the two first clamping jaws to move away from each other to loosen. The two first pneumatic jaws are both semicircular and arranged relatively. If the height of the first clamping jaw is too higher than the height of the second step 3-4, then the spacing between the two first clamping jaws is preferably gradually increased from bottom to top to facilitate the subsequent expansion of the upper part of the silicone sleeve 2. . The two first pneumatic clamping jaws 603 are both fixed on the cylinder mounting plate 6-8. The cylinder mounting plate 6-8 is slidably connected to the moving platform 6-2 through the first linear guide rail 6-7. The moving platform 6-2 is provided with a first pen-shaped cylinder 602 for driving the cylinder mounting plate 6-8 to move forward and backward, and a positioning device for moving and positioning the cylinder mounting plate 6-8. The forward and backward direction refers to a direction perpendicular to the second linear guide rail 6-11, wherein the first linear guide rail 6-7 and the second linear guide rail 6-11 are arranged perpendicular to each other and are both in a horizontal direction, so as to be arranged perpendicular to the guide rod 3. That is, the first clamping jaw group 6-5 and the first pneumatic clamping jaw 603 form the above-mentioned first clamping assembly, wherein the first pen-shaped cylinder 602, the cylinder mounting plate 6-8 and the first linear guide rail 6-7 are combined to form the above-mentioned first clamping jaw driving mechanism.
[0082] The silicone sleeve assembly mechanism 7 is arranged on the left side of the mechanism mounting plate 5, and the guide column assembly mechanism 8 is arranged on the right side of the mechanism mounting plate 5-1, wherein the silicone sleeve assembly mechanism 7 and the guide column assembly mechanism 8 both have working parts that can move up and down.
[0083] Specifically, the silicone sleeve assembly mechanism 7 is provided with a silicone sleeve fixture 7-1 for assembling the silicone sleeve 2 and the guide rod 3, a first moving module for positioning the silicone sleeve fixture 7-1, and a second moving module for reciprocating motion of the silicone sleeve fixture 7-1.
[0084] The first moving module includes a silicone sleeve movable seat 7-5, a second pen-shaped cylinder 701 for driving the silicone sleeve movable seat 7-5 to move up and down, a third linear guide rail 7-3 connected between the silicone sleeve movable seat 7-5 and the mechanism mounting plate 5-1, and a silicone sleeve positioning device 7-4 for positioning the silicone sleeve movable seat 7-5 downward. Specifically, it can be a positioning buffer, wherein the second pen-shaped cylinder 701 is a type of the above-mentioned silicone sleeve lifting drive mechanism.
[0085] The second moving module includes a silicone sleeve mounting plate 7-2 for mounting the silicone sleeve fixture 7-1 and a silicone sleeve assembly cylinder 702 for driving the silicone sleeve mounting plate 7-2 to move up and down, wherein the silicone sleeve assembly cylinder 702 is used to drive the silicone sleeve fixture 7-1 to reciprocate downward. It should be noted that the two silicone sleeve fixtures 7-1 corresponding to the two guide rod mounting seats should be installed on the silicone sleeve mounting plate 7-2.
[0086] The front end of the silicone sleeve clamp 7-1 has a trumpet-shaped guide hole 7-1-2 for guiding, a middle hole for fixing and positioning the silicone sleeve, a threaded mounting hole 7-1-4 for installation at the rear end, and a vent 7-1-1 connected to the middle section on the side. A circular ring sleeve is installed on the outside of the front end of the silicone sleeve clamp 7-1 to limit the expansion of the silicone sleeve.
[0087] Specifically, the guide column assembly mechanism 8 includes a guide column up and down displacement module, a copper sleeve fixture for picking up and assembling the guide column 1, a moving module for driving the copper sleeve fixture to move up and down, a sliding column for unloading the guide column in the copper sleeve fixture, and a clamping claw group for fixing the silicone sleeve.
[0088] Specifically, the guide post up-down displacement module includes a mobile mounting base plate 8-4, a fifth linear guide rail 8-7 disposed between the mobile mounting base plate 8-4 and the mechanism mounting plate 5-1, and a servo motor drive module 804 for driving the mobile mounting base plate 8-4 to move up and down. The servo motor drive module 804 is a type of the guide post lifting mechanism. The mobile mounting base plate 8-4 is also equipped with a first integrated mounting plate 8-2 and a second integrated mounting plate.
[0089] Two copper sleeve fixtures, corresponding to the above-mentioned guide post fixture, i.e., the tapered sleeve structure, i.e., the first copper sleeve fixture 8-5 and the second copper sleeve fixture 8-12, are respectively arranged corresponding to the two guide post mounting seats 6-1. The copper sleeve fixture has a through hole in the sleeve, and the front end is provided with the same taper as the outside of the guide post 1, and the outer front end is smaller in diameter than the rear section, so as to facilitate insertion into the silicone sleeve 2. A spring is arranged in the copper sleeve fixture, which can effectively buffer the pressure of the guide post 1 when taking materials, so that the guide post 1 will not be scratched.
[0090] Two copper sleeve fixtures are provided with two copper sleeve mounting blocks, namely the first copper sleeve mounting block 8-10 and the second copper sleeve mounting block 8-13, and the copper sleeve mounting blocks are provided with inner through holes, the lower holes are used to install the copper sleeve fixtures, namely the first copper sleeve fixture 8-5 and the second copper sleeve fixture 8-12, the upper holes are used to install the linear bearing 8-23 used to guide the sliding column, and the middle holes are used to limit the installation depth of the copper sleeve fixture. It should be noted that there should be two sliding columns, namely the first sliding column 8-14 and the second sliding column 8-17, which are respectively used to penetrate the linear bearing 8-23, wherein the sliding column corresponds to the push rod of the above-mentioned push rod mechanism.
[0091] The first copper sleeve mounting block 8-10 and the second copper sleeve mounting block 8-13 are respectively mounted on the first movable mounting plate 8-3 and the second movable mounting plate 8-15, and the first movable mounting plate 8-3 and the second movable mounting plate 8-15 are respectively mounted on the sliders of the fourth linear guide 8-1 and the sixth linear guide 8-16 to form sliding connections with the first integrated mounting plate 8-2 and the second integrated mounting plate respectively. The first standard cylinder 805 and the second standard cylinder 803 respectively drive the first movable mounting plate 8-3 and the second movable mounting plate 8-15 to move up and down, that is, drive the copper sleeve mounting blocks to move up and down. The first standard cylinder 805 and the second standard cylinder 803 here correspond to the above-mentioned lifting drive mechanism, and the above-mentioned modules are respectively directly or indirectly mounted on the integrated mounting plate 8-4 to be driven up and down by the servo motor drive module 804.
[0092] The first sliding column 8-14 and the second sliding column 8-17 have column through holes and side through holes. The first sliding column 8-14 and the second sliding column 8-17 are divided into upper and lower sections, and the lower ends pass through the first copper sleeve fixture mounting block 8-10 and the second copper sleeve fixture mounting block 8-13 to be pre-installed on the first copper sleeve fixture 8-5 and the second copper sleeve fixture 8-12 respectively, wherein the sliding column and the copper sleeve fixture are connected by a linear bearing.
[0093] The upper end of the sliding column is provided with a top surface mounting hole and a side through hole for ventilation. The upper ends of the first sliding column 8-14 and the second sliding column 8-17 are respectively provided with a third pen-shaped cylinder 802 and a fourth pen-shaped cylinder 801 which drive them to move up and down. Here, the third pen-shaped cylinder 802 and the fourth pen-shaped cylinder 801 correspond to the driving structure of the above-mentioned push rod mechanism. The third pen-shaped cylinder 802 and the fourth pen-shaped cylinder 801 are respectively mounted on the first cylinder mounting plate 8-20 and the second cylinder mounting plate 8-19, and the first cylinder mounting plate 8-20 and the second cylinder mounting plate 8-19 are respectively mounted on the top of the first integrated mounting plate 8-2 and the second integrated mounting plate to form a fixed connection. In order to form a more secure fixed connection, it is preferred here that the first cylinder mounting plate 8-20 is connected to the first integrated mounting plate 8-2 by a first L-shaped rib plate 8-21, wherein the two right-angled sides of the first L-shaped rib plate 8-21 are respectively fixedly attached to and fixedly connected to the side of the first integrated mounting plate 8-2 and the lower side of the first cylinder mounting plate 8-20; wherein the second cylinder mounting plate 8-19 is connected to the second integrated mounting plate by a second L-shaped rib plate 8-18, wherein the two right-angled sides of the second L-shaped rib plate 8-18 are respectively fixedly attached to and fixedly connected to the side of the second integrated mounting plate and the lower side of the second cylinder mounting plate 8-19.
[0094] Two groups of second clamping components for fixing the silicone sleeve 2 are correspondingly arranged, namely, the second clamping jaw group 8-8 and the third clamping jaw group 8-9, respectively, so as to be arranged correspondingly with the two guide column mounting seats 6-1. The second pneumatic clamping jaw 806 is installed on the first clamping jaw mounting plate 8-24, and the second clamping jaw group 8-8 is installed on the second pneumatic clamping jaw 806, so that the second pneumatic clamping jaw 806 drives the two clamping jaws of the second clamping jaw group 8-8 to clamp and release; wherein the third pneumatic clamping jaw 807 is installed on the second clamping jaw mounting plate 8-25, and the third clamping jaw group 8-9 is installed on the third pneumatic clamping jaw 807, so that the third pneumatic clamping jaw 807 drives the two clamping jaws of the third clamping jaw group 8-9 to clamp and release. The first clamping jaw mounting plate 8-24 and the second clamping jaw mounting plate 8-25 are respectively installed on the bottom of the first integrated mounting plate 8-2 and the second integrated mounting plate to be fixedly connected.
[0095] The front ends of the first clamping jaw mounting plate 8-24 and the second clamping jaw mounting plate 8-25 are respectively provided with a first special-shaped circular ring 8-6 and a second special-shaped circular ring 8-11, wherein the special-shaped circular rings correspond to the above-mentioned limit rings. The special-shaped circular rings have a flat mounting tail and an inner through hole, and the inner through holes are respectively mounted on the lower ends of the first copper sleeve fixture 8-5 and the second copper sleeve fixture 8-12, so that the copper sleeve can move up and down relative to the first special-shaped circular ring 8-6 and the second special-shaped circular ring 8-11, wherein the first special-shaped circular ring 8-6 and the second special-shaped circular ring 8-11 are abutted against the upper end of the silicone sleeve 2 to limit the upper end position of the silicone sleeve 2.
[0096] According to the above structure, the silicone sleeve of the present application is automatically assembled with the guide rod and guide column.
[0097] First, if Figure 1 and Figure 3 As shown, the silicone sleeve 2 is installed into the guide rod 3 manually or by a robot, and one end of the silicone sleeve 2 is in contact with the first step surface 3-2 of the guide rod 3, and the pre-assembled assembly is placed on the left guide rod mounting seat with the large end downward. In addition, the guide column 1 is placed on the two guide column mounting seats 6-1 on the right side with the large end downward manually or by a robot.
[0098] Then start the device, Figure 4 The second pen-shaped cylinder 701 of the first moving module of the silicone sleeve assembly mechanism 7 extends out, driving the silicone sleeve movable seat 7-5 to move along the third linear guide rail 7-3, and the silicone sleeve positioning device 7-4 buffers and limits, at this time driving the silicone sleeve assembly cylinder 702 and the silicone sleeve fixture 7-1 to descend until the upper end surface of the silicone sleeve 2 is installed as shown in the figure. Figure 6 The silicone sleeve limiting step 7-1-3 of the silicone sleeve clamp 7-1 is positioned thereon, and then 0.3MPa of gas is blown into the silicone sleeve 2 through the vent hole 7-1-1 of the silicone sleeve clamp 7-1 to expand the silicone sleeve 2. The tube wall of the silicone sleeve clamp 7-1 can effectively limit the expansion of the silicone sleeve 2, making it convenient for the guide rod 3 to be inserted into the silicone sleeve 2. After the blowing is turned on, the silicone sleeve assembly cylinder 702 starts to move back and forth to drive the silicone sleeve clamp 7-1 to reciprocately press the silicone sleeve, and quickly install the silicone sleeve 2 into the outer periphery of the middle section of the guide rod 3. After completion, stop blowing.
[0099] Then, make Figure 3 The first pen-shaped cylinder 602 of the middle clamp transfer mechanism 6 extends out, pushing the cylinder mounting plate 6-8 to move along the direction of the first linear guide rail 6-7, and the limit buffer buffers the cylinder mounting plate 6-8, and then the first pneumatic clamp 603 is started, that is, the first clamp group 6-5 is closed, and the bottom of the first clamp group 6-5 fixes the part of the silicone sleeve 2 at the second step 3-4 to ensure that this part is relatively fixed between the second step 3-4 of the guide rod. The upper part of the first clamp group 6-5 is larger than the outer diameter of the silicone sleeve fixture 7-1, so as to avoid it when the silicone sleeve fixture 7-1 descends to install the silicone sleeve 2, and at the same time facilitate the lateral expansion of the silicone sleeve 2 in the subsequent steps. After fixing the guide rod 3, the second moving module is reset, and the first moving module is reset to complete the assembly of the guide rod 3 and the silicone sleeve 2. At this time, the first clamp group 6-5 is not opened and remains clamped.
[0100] Concurrently, the servo motor drive module 804 drives the integrated mounting plate 8-4 to move downward along the fifth linear guide rail 8-7 until the guide column 1 is inserted into the copper sleeve fixture to a certain depth, the taper of the copper sleeve fixture mouth end matches the taper of the outer diameter of the guide column 1, and the guide column 1 is fixed by the elastic setting of the guide column mounting seat 6-1. The servo motor drive module 804 drives the integrated mounting plate 8-4 to rise, and then drives the copper sleeve fixture to rise, and then drives the guide column 1 to rise, so as to complete the material removal of the guide column 1.
[0101] The shifting drive mechanism 601 drives the movable table 6-2 to move along the second linear guide rail 6-11, and the second positioning device 6-10 buffers and positions the movable table 6-2 so that the guide rod mounting seat moves to the second mounting position, that is, drives the assembled guide rod and silicone sleeve to enter the second mounting position, that is, enters directly below the corresponding copper sleeve clamp, corresponding to the guide column fixed by the copper sleeve clamp, and the first clamping jaw group 6-5 remains clamped and closed.
[0102] Then the servo motor driving module 804 drives the movable installation base plate 8-4 to press down until the upper part of the first step 3-2 of the guide rod 3 is inserted into the inner hole of the guide column 1, and the bottom end face of the guide column 1 contacts the upper end face of the silicone sleeve 2. Then the side blowing holes of the first sliding column 8-14 and the second sliding column 8-17 blow gas at a pressure of about 0.6MPa, which enters the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12 through the inner cavity of the first sliding column 8-14 and the second sliding column 8-17 respectively, and then enters the silicone sleeve 2 through the inner cavity of the guide column 1. Since the first clamping jaw group 6-5 clamps the lower end of the silicone sleeve 2, the upper part of the silicone sleeve 2 can be slightly expanded, and the upper end of the silicone sleeve 2 can be gradually opened.
[0103] The bottom of the first clamping jaw group 6-5 fixes the silicone sleeve 2 assembled on the middle end 3-3 of the guide rod 3 to prevent the silicone sleeve 2 from shrinking and leaking. The upper airtight parts of the second clamping jaw group 8-8 and the third clamping jaw group 8-9 can be used to limit the expansion of the silicone sleeve 2. At the same time, the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12 start to press down reciprocatingly under the drive of the servo motor drive module 804, and the silicone sleeve 2 expands and is assembled to the mouth of the silicone sleeve 2 through the bottom of the guide column 1 to the bottom of the first special-shaped ring 8-6 and the second special-shaped ring 8-11, and the blowing stops.
[0104] Then the servo motor driving module 804 drives the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12 to retract a short distance, and then the second pneumatic clamp 806 and the third pneumatic clamp 807 of the guide column assembly mechanism 8 are closed, driving the second clamp group 8-8 and the third clamp group 8-9 to fix the silicone sleeve on the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12, and then the servo motor driving module 804 drives the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12 to rise to a certain height so that the silicone sleeve is in an elastic stretched state.
[0105] The air holes of the first sliding column 8-14 and the second sliding column 8-17 are blown with gas at a pressure of 0.2MPa to slightly expand the silicone sleeve 2, and then the third pen-shaped cylinder 802 and the fourth pen-shaped cylinder 801 are extended to drive the first sliding column 8-14 and the second sliding column 8-17 to be pressed down along the inner holes of the first copper sleeve mounting block 8-10 and the second copper sleeve mounting block 8-13. The first sliding column 8-14 and the second sliding column 8-17 are pressed down to push the guide columns out of the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12 respectively, and assembled to the guide rod 3 until the middle end face. At this time, the guide rod 3 and the guide column 1 are assembled.
[0106] The first sliding column 8-14 and the second sliding column 8-17 stop blowing, the second pneumatic clamp 806 and the third pneumatic clamp 807 open, and the first standard cylinder 803 and the second standard cylinder 805 retract, respectively driving the first movable mounting plate 8-3 and the second movable mounting plate 8-15 to move along the fourth linear guide rail 8-1, driving the lower end surfaces of the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12 to move upward, until the lower end surfaces of the first copper sleeve clamp 8-5 and the second copper sleeve clamp 8-12 are respectively retracted into the first special-shaped ring 8-6 and the second special-shaped ring 8-11. At this time, because the special-shaped ring limits the upper end of the silicone sleeve 2, it can effectively play a limiting role in the process of retraction of the copper sleeve clamp to prevent the upper end of the silicone sleeve 2 from moving up with the copper sleeve clamp, and effectively limit the position.
[0107] Then the servo motor driving module 804 drives the mobile mounting base 8-4 to reset, the first standard cylinder 803 and the second standard cylinder 805 extend to reset, the third pen-shaped cylinder 802 and the fourth pen-shaped cylinder 801 retract to reset, the transfer cylinder 601 extends to drive the mobile platform 6-2 to reset, the first clamping jaw group 6-5 opens, the first pen-shaped cylinder 602 retracts, and drives the guide rod mounting seat to reset, completing the entire assembly process.
[0108] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0109] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A pump core assembly device, characterized in that: include: A movable platform (6-2) is provided with a guide rod mounting seat; A transposition drive mechanism (601) for driving the movable platform (6-2) to move so that the guide rod mounting seat located at the first mounting position moves to the second mounting position; A silicone sleeve fitting mechanism (7) is arranged at the first installation position, comprising a silicone sleeve clamp (7-1) for covering the upper end of the silicone sleeve and a silicone sleeve pressure mechanism for driving the silicone sleeve clamp (7-1) to move downward, wherein the silicone sleeve clamp (7-1) is provided with a first air guide channel for communicating with the silicone sleeve; The guide post assembly mechanism (8) is arranged at the second mounting position, and comprises a guide post clamp for fixing the guide post, a guide post lifting mechanism for driving the guide post clamp to press downward, and a second air guide channel for communicating with the inside of the guide post; the silicone sleeve clamp (7-1) is a tube structure, the middle tube cavity is a limiting hole matching the silicone sleeve, and the upper end forms a limiting shoulder for abutting against the upper end of the silicone sleeve, and the lower tube cavity is a trumpet-shaped guide hole matching the limiting hole; it also comprises a first clamping component for clamping the lower end of the silicone sleeve on the guide rod mounting seat with the guide rod, and the movable platform is provided with a first clamping claw driving mechanism for driving the first clamping component to approach the guide rod mounting seat; the lower end of the silicone sleeve is clamped by the first clamping component, so that when gas is introduced through the second air guide channel, the upper part of the silicone sleeve can be slightly expanded, so that the upper end of the silicone sleeve can be opened.
2. The pump core assembly device according to claim 1, characterized in that: The silicone sleeve pressure mechanism comprises a silicone sleeve movable seat (7-5), a silicone sleeve lifting drive mechanism for driving the silicone sleeve movable seat to move up and down, a silicone sleeve positioning device (7-4) for preventing the silicone sleeve movable seat (7-5) from moving downward and buffering and limiting the position, and a silicone sleeve assembly cylinder (702) installed on the silicone sleeve movable seat (7-5) for driving the silicone sleeve clamp to reciprocate downward pressing movement.
3. The pump core assembly device according to claim 1, characterized in that: The upper end pipe opening of the silicone sleeve clamp (7-1) is a threaded mounting hole, and the middle side wall of the upper tube cavity is provided with a vent.
4. The pump core assembly device according to claim 1, characterized in that: The guide rod mounting seat comprises a bottom column connected to the movable platform (6-2) via a positioning hole and a threaded hole, a conical column fixed to the upper end of the bottom column to be inserted and fixed to the bottom of the guide rod, and a limiting ring installed at the upper end of the bottom column, wherein a receiving groove having a size and shape matching the flange at the lower end of the guide rod is formed between the inner wall of the limiting ring and the outer wall of the conical column, so as to prevent the silicone sleeve from falling by abutting against the silicone sleeve through the upper side surface.
5. The pump core assembly device according to any one of claims 1 to 4, characterized in that: The movable platform (6-2) is also provided with a guide post mounting seat (6-1), and when the guide rod mounting seat is located at the first mounting position, the guide post mounting seat (6-1) is located at the second mounting position, and the guide post clamp is a conical sleeve structure that can be sleeved on the outside of the guide post to be plugged and fixed with the guide post.
6. The pump core assembly device according to claim 5, characterized in that: The guide column lifting mechanism can drive the conical sleeve structure to press down reciprocally.
7. The pump core assembly device according to claim 6, characterized in that: The guide post assembly mechanism also includes a push rod mechanism for pushing the guide post out of the tapered sleeve structure so as to be inserted into place with the guide rod.
8. The pump core assembly device according to claim 7, characterized in that: It also includes a second clamping assembly, which, after entering the second installation position, can clamp and fix the upper end of the silicone sleeve on the outside of the conical sleeve structure after pressing the conical sleeve structure down to insert the silicone sleeve, so as to tightly wrap the outside of the conical sleeve structure. A lifting drive mechanism is also provided between the conical sleeve structure and the guide column lifting mechanism. A limiting ring for abutting against the upper end of the silicone sleeve is fixedly installed on the driving end of the guide column lifting drive mechanism. When the conical sleeve structure is lowered to be inserted into the silicone sleeve, the limiting ring is arranged on the outside of the lower part of the conical sleeve structure.
9. The pump core assembly device according to claim 8, characterized in that: A controller is also included, which is used to control the following steps in sequence when the guide rod mounting seat moves to the second mounting position: Control the guide post lifting mechanism to descend, and at least drive it to descend until the lower end surface of the guide post on the conical sleeve structure abuts against the upper end surface of the silicone sleeve; Introducing high-pressure gas into the second gas-conducting passage; Controlling the guide column lifting mechanism to start, so as to drive the conical sleeve structure to reciprocate and feed downward, until the lower end of the conical sleeve structure is inserted to a predetermined depth of the silicone sleeve, and at this time, stopping the introduction of high-pressure gas into the second air guide channel; Controlling the second clamping assembly to clamp the outer side of the plug-in portion of the silicone sleeve and the conical sleeve structure, so that the silicone sleeve is tightly wrapped around the outer side of the conical sleeve structure; Control the second clamping assembly and the conical sleeve structure to synchronously move upward by a predetermined distance, and fill the lower part of the silicone sleeve with high-pressure gas within a predetermined pressure range; Controlling the push rod mechanism to start, so as to extend into the conical sleeve structure to push the guide post out of the conical sleeve structure and to drive it downward to be inserted into place with the guide rod; The second clamping assembly is controlled to be loosened and the filling of high-pressure gas is stopped, and the recovery drive mechanism is controlled to start, so as to drive the conical sleeve structure to move upward relative to the limit ring to separate from the silicone sleeve.
Citation Information
Patent Citations
High-quality automatic assembly equipment for pump core of infusion pump and assembly method of automatic assembly equipment
CN108161431A
Pump core assembling equipment
CN211994281U