A production process for linear motor mover

Abstract

The present invention discloses a production process of a linear motor mover, comprising the following steps: step 1, making a plurality of core monomers; step 2, respectively encapsulating the winding part of each core monomer; step 3, winding the winding part of each core monomer separately; step 4, splicing the wound core monomers into a core as a whole according to the matching mode of tenon and mortise; step 5, inserting T-shaped bars into the T-shaped grooves of some core monomers, and then connecting and fixing the core as a whole to the shell through the connection between the T-shaped bars and the shell, so as to complete the assembly of the mover; step 6, vacuum-filling the assembled mover; step 7, milling and grinding the mover after the treatment in step 6. The mover core of the present invention is convenient to wind, and the linear motor of the mover obtained by the production process of the present invention can take into account both structural stability and high performance.

Description

Technical Field

[0001] The invention relates to the technical field of linear motors, in particular to a production process of a linear motor mover. Background Art

[0002] Linear motors are widely used in mechanical equipment due to their high speed, high repeatability, light weight, small space and long life. Existing linear motor movers are generally one-piece iron cores, and the winding slots are generally narrow beam structures, which makes winding extremely inconvenient. Although a few linear motor movers are made into split structures, the iron core stability of the split structure is low, and it is difficult to meet the requirements of fast linear motor speed and high repeatability. Therefore, it is urgent to develop a linear motor mover and production process that is easy to wind and has high stability to solve the current problems. Summary of the invention

[0003] The purpose of the present invention is to provide a production process for a linear motor mover. The mover core of the present invention is easy to wind, and the linear motor of the mover produced by the production process of the present invention can take into account both structural stability and high performance.

[0004] The technical solution of the present invention is a production process of a linear motor mover, comprising the following steps:

[0005] Step 1, making a plurality of core monomers, the core monomers comprising a winding part and a splicing part, the two ends of the splicing part are respectively provided with a tenon and a mortise, adjacent core monomers are spliced ​​by the cooperation of the tenon and the mortise, the splicing part is also provided with a T-slot, the T-slot is located between the tenon and the mortise, and comprises a vertical side and a horizontal side, one end of the vertical side of the T-slot is open with a notch, and the other end is connected to the horizontal side, the T-slot is an asymmetric structure, with the center line of the vertical side of the T-slot as a reference line, the length of the horizontal side of the T-slot extending to the tenon side is greater than the length extending to the mortise side;

[0006] Step 2, plastic coating the winding parts of each core monomer;

[0007] Step 3, winding the wires individually on the winding parts of each core monomer;

[0008] Step 4, splicing the wound core monomers into a core unit according to the matching mode of tenon and mortise;

[0009] Step 5: Install the T-shaped bar into the T-shaped slot of some core monomers, and then connect and fix the core as a whole to the shell through the connection between the T-shaped bar and the shell, so as to complete the assembly of the mover;

[0010] Step 6: vacuum glue filling the assembled mover;

[0011] Step 7: Milling and grinding the mover processed in step 6.

[0012] Compared with the prior art, the beneficial effects of the present invention are embodied in that the mover obtained by the process of the present invention is a structure formed by splicing multiple core monomers. This split structure can realize winding on the core monomer first and then assembling, which is convenient for winding. The assembly between the core monomers adopts the matching method of tenon and mortise, which is convenient and reliable. More importantly, a T-slot is provided between the tenon and the mortise of the splicing part. The T-slot is asymmetric, specifically, the length of the horizontal side extending to the tenon side is greater than the length extending to the mortise side, which can improve the center of gravity of the entire core monomer so that the center of gravity will not be too biased to the tenon side, and can improve the overall stability of the mover after assembly. Ultimately, the linear motor using the mover structure of the present invention can achieve structural stability and high performance of the linear motor while facilitating winding.

[0013] In the aforementioned production process of a linear motor mover, the step 6 specifically includes the following sub-steps:

[0014] Sub-step 6.1, put the assembled mover into a pre-oven, adjust the temperature in the pre-oven to 100-120°C, and keep the mover in the pre-oven for 10-15 minutes;

[0015] Sub-step 6.2, call out the model of the glue dispenser corresponding to the vacuum glue dispenser to complete the automatic proportioning of glue;

[0016] Sub-step 6.3, put the assembled mover into a vacuum box, evacuate the vacuum box to make the vacuum degree greater than 95KPa, and maintain the vacuum degree for 10-15 minutes;

[0017] Sub-step 6.4, the robot automatically dispenses glue to the mover according to the set glue filling amount;

[0018] Sub-step 6.5, evacuate the vacuum box again, and keep the vacuum degree at 60-70KPa;

[0019] Sub-step 6.6, the robot performs secondary glue filling on the mover;

[0020] Sub-step 6.7: Place the mover after the second glue repair in a drying oven for curing. The temperature of the drying oven is maintained at 60-80°C for 110-130 minutes.

[0021] In the aforementioned production process of a linear motor mover, the ratio between the length of the horizontal side of the T-slot extending to the tenon side and the length extending to the mortise side is 4:3.5.

[0022] In the aforementioned production process of a linear motor mover, among several core monomers, N core monomers are connected to the outer shell through T-shaped bars arranged in T-shaped slots, N≥2, and among two adjacent T-shaped slots, at most only one T-shaped slot is provided with a T-shaped bar, that is, in addition to improving the center of gravity of the core monomer, the T-shaped slot can also play a role in connecting the outer shell and the core monomer, N≥2 ensures the stability of the connection, and among two adjacent T-shaped slots, at most only one T-shaped slot is provided with a T-shaped bar, which ensures that the overall center of gravity of the core will not be excessively offset, which helps to improve the structural stability.

[0023] In the aforementioned production process of a linear motor rotor, the outer side of the winding part is wrapped with a plastic layer to play an insulating role. Compared with the conventional iron core winding part insulated by insulating paper, the insulation of the present invention is more thorough, making it difficult for the enameled wire to be displaced or squeezed after winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a linear motor using a mover of the present invention;

[0025] Figure 2 It is the structural diagram of the mover;

[0026] Figure 3 It is a structural schematic diagram of the core monomer;

[0027] Figure 4 It is a schematic diagram of the structure of the core monomer after winding;

[0028] Figure 5 It is a schematic diagram of the structure of the stator.

[0029] Figure numerals: 1-stator, 2-mator, 11-yoke plate, 12-magnetic steel, 21-housing, 22-core unit, 200-T-shaped bar, 221-winding part, 222-splicing part, 300-plastic coating layer, 400-end piece, 2221-tenon, 2222-mortise, 2223-T-shaped slot. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0031] Embodiment: A linear motor with a mover made by the process of the present invention has a structure as follows: Figures 1 to 5As shown, it includes a stator 1 and a mover 2, and the mover 2 includes a shell 21. Six core monomers 22 arranged in a straight line are arranged inside the shell 21. The core monomer 22 includes a winding part 221 and a splicing part 222. Tenons 2221 and mortises 2222 are respectively provided at two ends of the splicing part 222. Adjacent core monomers 22 are spliced ​​by the tenon 2221 and the mortise 2222. A T-slot 2223 is also provided on the splicing part 222. The T-slot 2223 is located between the tenon 2221 and the mortise 2222, and includes a vertical side and a horizontal side. One end of the vertical side of the T-slot 2223 is open with a notch, and the other end is connected to the horizontal side. Taking the center line of the vertical side of the T-slot 2223 as a reference line, the length of the horizontal side of the T-slot 2223 extending to the tenon 2221 side is greater than the length extending to the mortise 2222 side.

[0032] Preferably, the ratio of the length of the lateral side of the T-slot 2223 extending to the tenon 2221 side to the length of the lateral side of the T-slot 2223 extending to the mortise 2222 side is 4:3.5.

[0033] The core monomer 22 and the shell 21 are fixed through the T-bar 200. The two sides of the T-bar 200 are connected to the T-slot 2223 through a 4:3.5 eccentric and uneven structure, and the strength of deformation stress is high. In addition, since it is necessary to design process rivet points on both sides of the T-slot 2223, a rivet point width that is too small will affect the riveting firmness, and a rivet point width that is too large will hinder the magnetic flux circuit. The 4:3.5 eccentric and uneven connection structure can ensure that the rivet point width design has a larger selection range, which can take into account both the riveting firmness and non-obstruction of the magnetic flux circuit.

[0034] In order to verify the deformation strength of the two sides of the T-shaped bar 200 and the T-shaped slot 2223 through the 4:3.5 eccentric unequal distribution structure, multiple groups of eccentric unequal distribution structures and equal distribution structures with different proportions were taken for comparison. Five samples were tested for each group of structures. The test results are as follows:

[0035] Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 average value 1:1 uniform force strength (KN.m) 0.29 0.27 0.28 0.26 0.28 0.276 Eccentric 4.5:3 force strength (KN.m) 0.26 0.24 0.27 0.24 0.25 0.252 Eccentricity 4.4:3.1 Strength (KN.m) 0.26 0.24 0.28 0.25 0.26 0.258 Eccentricity 4.3:3.2 Strength (KN.m) 0.27 0.26 0.28 0.26 0.27 0.268 Eccentricity 4.2:3.3 Strength (KN.m) 0.28 0.27 0.29 0.26 0.28 0.276 Eccentricity 4.1:3.4 Strength (KN.m) 0.30 0.30 0.29 0.28 0.29 0.292 Eccentricity 4:3.5 Strength (KN.m) 0.33 0.31 0.33 0.32 0.33 0.324 Eccentricity 3.9:3.6 Strength (KN.m) 0.30 0.29 0.31 0.30 0.31 0.302 Eccentricity 3.8:3.7 Strength (KN.m) 0.29 0.28 0.29 0.27 0.28 0.282

[0036] From the above comparative tests, it can be seen that the 4:3.5 eccentric unequal distribution structure is adopted between the two sides of the T-shaped bar 200 and the T-shaped groove 2223. The deformation stress strength is more than 10% higher than that under the equal distribution condition, and at least 6% higher than that under the eccentric unequal distribution conditions of other proportions. Therefore, the 4:3.5 eccentric unequal distribution structure is the best proportion structure.

[0037] Preferably, after the six core monomers 22 are assembled, the winding slot openings formed are all of a constriction structure that gradually narrows from the inside to the outside.

[0038] Preferably, after the six core monomers 22 are assembled, an end piece 400 is provided on the outer side of the outermost core monomer 22 .

[0039] Preferably, among the six core monomers 22 , two core monomers 22 are connected to the housing 21 via T-shaped bars 200 arranged in the T-shaped slots 2223 , and two empty T-shaped slots 2223 are spaced between the two T-shaped bars 200 .

[0040] Preferably, the vertical side of the T-shaped bar 200 faces upward and is connected to the top of the housing 21 .

[0041] Preferably, the outer side of the winding portion 221 is wrapped with a plastic coating layer 300 , and the plastic coating layer 300 is formed by injection molding.

[0042] Preferably, the stator 1 includes a yoke plate 11 and a plurality of magnets 12 , wherein the plurality of magnets 12 are arranged on the yoke plate 11 at equal intervals and in an inclined manner, and the length direction of the single magnet 12 forms an angle of 80° with the length direction of the yoke plate 11 .

[0043] Preferably, the yoke plate 11 is formed by splicing a plurality of sub-yoke plates, and the sub-yoke plates are provided with a variety of length specifications.

[0044] The production process of the linear motor including the mover production process of the present invention comprises the following steps:

[0045] Step 1: Make 6 iron core monomers 22.

[0046] Step 2: Perform plastic coating treatment on the winding portion 221 of each core unit 22.

[0047] Step 3: Wind wires individually on the winding portion 221 of each core unit 22 .

[0048] Step 4: Splice the six wound core monomers 22 into a core unit according to the matching mode of the tenon 2221 and the mortise 2222.

[0049] Step 5: Insert the T-shaped bar 200 into the T-shaped slots 2223 of the two core monomers 22, and then connect and fix the core as a whole to the shell 21 through the connection between the T-shaped bar 200 and the shell 21, so as to complete the assembly of the mover 2.

[0050] Step 6: vacuum glue filling is performed on the assembled mover 2.

[0051] Vacuum glue filling specifically includes the following sub-steps:

[0052] Sub-step 6.1, put the assembled mover 2 into a pre-oven, adjust the temperature in the pre-oven to 110°C, and keep the mover in the pre-oven for 12 minutes to ensure that the epoxy resin glue has better fluidity inside the mover 2 and exhaust all the air;

[0053] Sub-step 6.2, call out the model of the glue dispenser corresponding to the vacuum glue dispenser, and automatically mix the glue;

[0054] Sub-step 6.3, put the assembled mover 2 into a vacuum box, evacuate the vacuum box, maintain the vacuum degree at 100 KPa, and maintain the vacuum degree for 12 minutes to ensure that all the air inside the mover 2 is exhausted;

[0055] Sub-step 6.4, the robot automatically dispenses glue to the mover 2 according to the set glue filling amount;

[0056] Sub-step 6.5, evacuate the vacuum box again, and keep the vacuum degree at 65KPa. During the second evacuation, the vacuum degree should not be too high to avoid the bubbles from spraying out the glue;

[0057] Sub-step 6.6, the plane of the mover 2 is concave due to the penetration of glue, and the robot performs a second glue filling on the mover 2;

[0058] Sub-step 6.7: Place the mover 2 after the second glue filling in a drying oven for curing at a temperature of 70° C. for 120 minutes.

[0059] Step 7: milling and grinding the glue-filled surface of the mover 2 after glue-filling.

[0060] Step 8: Assemble the stator 1 and mover 2 to match them.

[0061] Step 9: Product packaging.

[0062] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0063] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A production process for a linear motor mover, characterized in that: The following steps are involved: Step 1, making a plurality of core monomers, the core monomers comprising a winding part and a splicing part, the two ends of the splicing part are respectively provided with a tenon and a mortise, adjacent core monomers are spliced ​​by the cooperation of the tenon and the mortise, the splicing part is also provided with a T-slot, the T-slot is located between the tenon and the mortise, and comprises a vertical side and a horizontal side, one end of the vertical side of the T-slot is open with a notch, and the other end is connected to the horizontal side, the T-slot is an asymmetric structure, with the center line of the vertical side of the T-slot as a reference line, the length of the horizontal side of the T-slot extending to the tenon side is greater than the length extending to the mortise side; Step 2, plastic coating the winding parts of each core monomer; Step 3, winding the wires individually on the winding parts of each core monomer; Step 4, splicing the wound core monomers into a core unit according to the matching mode of tenon and mortise; Step 5: Install the T-shaped bar into the T-shaped slot of some core monomers, and then connect and fix the core as a whole to the shell through the connection between the T-shaped bar and the shell, so as to complete the assembly of the mover; Step 6: vacuum glue filling the assembled mover; Step 7, performing milling and grinding on the mover processed in step 6; The ratio between the length of the T-shaped slot extending to the tenon side and the length extending to the mortise side is 4:3.5; Among the plurality of core monomers, N core monomers are connected to the shell via T-shaped bars arranged in the T-shaped slots, N≥2, and among two adjacent T-shaped slots, at most only one T-shaped slot is provided with a T-shaped bar.

2. The production process of a linear motor mover according to claim 1, characterized in that: The step 6 specifically includes the following sub-steps: Sub-step 6.1, put the assembled mover into a pre-oven, adjust the temperature in the pre-oven to 100-120°C, and keep the mover in the pre-oven for 10-15 minutes; Sub-step 6.2, call out the model of the glue dispenser corresponding to the vacuum glue dispenser to complete the automatic proportioning of glue; Sub-step 6.3, put the assembled mover into a vacuum box, evacuate the vacuum box to make the vacuum degree greater than 95KPa, and maintain the vacuum degree for 10-15 minutes; Sub-step 6.4, the robot automatically dispenses glue to the mover according to the set glue filling amount; Sub-step 6.5, evacuate the vacuum box again, and keep the vacuum degree at 60-70KPa; Sub-step 6.6, the robot performs secondary glue filling on the mover; Sub-step 6.7: Place the mover after the second glue repair in a drying oven for curing. The temperature of the drying oven is maintained at 60-80°C for 110-130 minutes.

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