Winding clamp for rotor coil of linear motor

Abstract

The invention relates to the technical field of linear motor production equipment, and provides a winding clamp of a rotor coil of a linear motor, which comprises a wire core, and a left end plate and a right end plate detachably connected to two sides of the wire core, and is characterized in that the wire core comprises two wire core monomers arranged at an interval. The clamp overcomes the defects in the prior art, is reasonable in design and convenient to use, and solves the problem that the coil deforms or is abraded when the coil retreats from the wire core of the clamp.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motor production equipment, and particularly relates to a winding fixture for a mover coil of a linear motor. Background Art

[0002] The mover of a linear motor mainly includes an iron core, a plurality of coils sleeved on the comb teeth of the iron core, and a potting structure for fixing the coils and the iron core to avoid exposure. Among them, during the production process of the coils, they are first wound on a fixture, then cured by electrification, and finally the coils are removed from the fixture. However, since the connection between the coils and the fixture core is relatively firm, problems such as coil deformation or wear will occur when the coils are removed.

[0003] Therefore, we propose a winding fixture for a mover coil of a linear motor. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a winding fixture for a mover coil of a linear motor, which overcomes the deficiencies of the prior art, is reasonably designed, easy to use, and solves the problem of coil deformation or wear when the coil is removed from the core of the fixture.

[0006] (2) Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] A winding fixture for a mover coil of a linear motor, including a core and a left end plate and a right end plate detachably connected to both sides of the core, characterized in that: the core includes two spaced core units.

[0009] Further, a first chute extending along the length direction of the core is provided on the inner side of the left end plate, and the two core units are slidably installed in the first chute. A locking block is rotatably installed between the two core units in the first chute. The locking block is oval, and first springs are respectively installed at both ends of the first chute for pressing the core units towards the locking block.

[0010] Further, the locking block is fixedly connected to a rotating shaft, the rotating shaft is rotatably supported at the bottom of the first chute, a first limiting block is provided on the rotating shaft, and a second limiting block is provided at the bottom of the first chute. The first limiting block and the second limiting block cooperate to limit the rotation angle of the rotating shaft.

[0011] Further, one end of the rotating shaft passing through the left end plate is slidably sleeved with a knob. A first key groove is opened on the outer side wall of the left end plate, a second key groove is provided at the bottom of the first key groove, and the head of the knob can be embedded in the second key groove.

[0012] Further, the rotating shaft includes a rotating support portion with a circular cross-section and a sliding fit portion with a regular polygon cross-section. The sliding fit portion is slidably inserted into the regular polygon inner hole of the knob and is elastically connected by a second spring.

[0013] Further, a T-shaped slider is provided at the bottom of the first chute, and a T-shaped first chute is provided at the bottom of the wire core. The T-shaped guide rail is slidably inserted into the T-shaped first chute.

[0014] Further, the wire core unit includes a base body and a pair of moving plates. The base body is arranged in an inverted T shape. The horizontal part of the base body is slidably installed in the first chute. Moving plates are respectively provided on both sides of the vertical part of the base body. An annular airbag and tension springs evenly distributed in the circumferential direction of the annular airbag are provided between the vertical part of the base body and the moving plates. When the annular airbag deflates, the moving plates can move inward under the action of the tension springs; a gas passage communicating with the annular airbag is provided in the base body. The outlet end of the gas passage is located at the horizontal part of the base body and extends along the left-right direction. A piston is installed in the outlet end of the gas passage, and the rod part of the piston is fixed to the left end plate.

[0015] Further, a guide post is installed on the base body corresponding to each tension spring. The guide post passes through the tension spring and is in sliding and guiding cooperation with the moving plate.

[0016] (III) Beneficial Effects

[0017] The present invention provides a winding jig for the moving coil of a linear motor, having the following beneficial effects:

[0018] The wire core adopts a two-piece structure. After winding is completed, the jig is removed, the right end plate is removed, and the knob is rotated. Under the action of the first spring, it slides inward, reducing the overall width of the wire core, causing a gap between the wire core unit and the coil, facilitating the withdrawal of the coil, and avoiding deformation and wear caused by excessive pulling force when the coil is withdrawn.

[0019] In addition, the knob is pressed into the second key groove through the driving end. When the jig is withdrawn from between the driving shaft and the center point of the winding machine, that is, after the driving end withdraws from the first key groove, the knob extends outward under the action of the second spring, facilitating the screwing and adjusting of the locking block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the first perspective of the present invention;

[0021] Figure 2 is an exploded structural diagram of the first perspective of the present invention;

[0022] Figure 3 isFigure 2 Schematic diagram of the enlarged structure at location A in

[0023] Figure 4 Schematic diagram of the structure from the second perspective of the present invention;

[0024] Figure 5 is Figure 4 Schematic diagram of the structure of the knob, the second spring and the rotating shaft in

[0025] Figure 6 Schematic diagram of the structure of the cooperation between the first limiting block and the second limiting block in the present invention;

[0026] Figure 7 Schematic diagram of the sectional structure of the present invention;

[0027] Figure 8 is Figure 7 Schematic diagram of the enlarged structure at location B in

[0028] Figure 9 Schematic diagram of the structure of the wire core monomer in other embodiments of the present invention.

[0029] In the figure:

[0030] 1. Right end plate; 1a. Tip docking hole; 2. Left end plate; 2a. First keyway; 2b. Second keyway; 2c. Second sliding groove; 2d. T-shaped guide rail; 3. Wire core monomer; 3a. T-shaped sliding groove; 3b. First sliding groove; 4. Locking block; 5. First spring; 6. Spring limit seat; 7. Rotating shaft; 7a. Rotating support part; 7b. Fixed connection part; 7c. Sliding fit part; 8. Knob; 8a. Sleeve; 8b. Head; 9. First limiting block; 10. Second limiting block; 11. Second spring; 12. Plugging block; 13. Insertion plate; 14. Sealing plate; 15. Guide post; 16. Pulling spring; 17. Ring-shaped airbag; 18. Piston; 19. Rod part; 31. Substrate; 31a. Outlet end; 32. Moving plate; Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Refer to the attached Figure 1-8, a winding fixture for the mover coil of a linear motor, comprising a core and left end plates 2 and right end plates 1 detachably connected to both sides of the core. The core includes two core monomers 3. The inner side of the left end plate 2 is provided with a first chute 3b extending along the length direction of the core. The two core monomers 3 are slidably installed in the first chute 3b. A locking block 4 is rotatably installed between the two core monomers 3 in the first chute 3b. The locking block 4 is oval. First springs 5 are respectively installed at both ends of the first chute 3b. Specifically, a spring limit seat 6 is installed at the end of the first chute 3b. An annular groove is formed on the inner side wall of the spring limit seat 6. The end of the first spring 5 is embedded in the groove, and the other end abuts against the core monomer 3 (the core monomer 3 can be installed with a sealing plate 14 to seal the end of the first chute 3b, and a more stable contact can be formed between the sealing plate 14 and the first spring 5). The first spring 5 is completely received in the first chute 3b to avoid interference with the coil winding. The first spring 5 is used to press the core monomer 3 towards the locking block 4. When the locking block 4 rotates to the two ends of its major axis abutting against the core monomer 3, the core monomer 3 is pushed outwards to a first preset position, which is the position where the core monomer 3 is located during coil winding. When the locking block rotates to the two ends of its minor axis abutting against the core monomer 3, the core monomer 3 is pushed inwards to a second preset position under the action of the first spring 5. At this second preset position, a gap is formed between the outer end face of the core monomer facing the first spring 5 and the coil, facilitating the coil to exit the core.

[0033] In this embodiment, the locking block 4 is fixedly connected to a rotating shaft 7. The rotating shaft 7 is rotatably supported at the bottom of the first chute 3b. A first limit block 9 is provided on the rotating shaft 7, and a second limit block 10 is provided at the bottom of the first chute 3b. The first limit block 9 and the second limit block 10 cooperate to limit the rotation angle of the rotating shaft 7. In some embodiments, the first limit block is in the shape of a quarter of a circular ring, and the second limit block is in the shape of a half circular ring. When the rotating shaft rotates 90 degrees, the first limit block abuts against the second limit block for limiting.

[0034] In this embodiment, the rotating shaft 7 passes through one end of the left end plate 2 and is slidably sleeved with a knob 8. The outer wall of the left end plate 2 is provided with a first key slot 2a, and the bottom of the first key slot 2a is provided with a second key slot 2b, and the head 8b of the knob 8 can be embedded in the second key slot 2b. In addition, a second slide slot 2c connected to the first key slot can be provided on one side of the first key slot, and a plug plate 13 is installed in the second slide slot 2c, and a blocking block 12 is installed at the open end of the second slide slot 2c. The plug plate 13 is L-shaped, and the transverse body of the plug plate 13 is inserted into the space formed by the blocking block 12 and the second slide slot 2c, and its longitudinal body is exposed to the outside to facilitate the push and pull operation. When the plug plate 13 is pushed into the first key slot, the second key slot can be blocked to prevent the knob from popping out. A folding portion can be provided at the end of the transverse body of the plug plate 13 (the side away from the longitudinal body), and the folding portion and the side wall of the first key slot and the side wall of the blocking block 12 can be temporarily fixed by magnetic attraction.

[0035] In this embodiment, the rotating shaft 7 includes a fixed connection part 7b, a rotation support part 7a and a sliding matching part 7c which are connected in sequence along the axial direction. The cross section of the fixed connection part 7b is a regular polygon, the cross section of the rotation support part 7a is a circle, and the cross section of the sliding matching part 7c is a regular polygon. The fixed connection part 7b is embedded in the back of the locking block and is locked and fixed with the locking block by bolts. The rotation support part 7a is rotatably arranged on the bottom wall of the first sliding groove 3b (bearings can be added as needed to improve the stability and flexibility of the rotation support part 7a). The knob includes a head 8b and a sleeve 8a. The inner cavity cross section of the sleeve 8a is a regular polygon (consistent with the cross section of the sliding matching part 7c). The sleeve 8a is slidably sleeved outside the sliding matching part 7c. A second spring 11 is installed in the sleeve 8a, and the two ends of the second spring 11 are respectively against the rotation support part 7a and the knob 8. The sleeve 8a and the sliding matching part 7c are matched by a limiting structure to prevent the sleeve 8a from being separated from the sliding matching part 7c under the elastic action of the second spring 11. The limiting structure includes a limiting pin and a long hole. The limiting pin is inserted into the sliding fitting part 7c in a manner perpendicular to its axis and both ends are exposed. The sleeve 8a is symmetrically provided with two long holes. The long holes pass through the side wall of the sleeve 8a and are arranged parallel to its axis. Both ends of the limiting pin extend into the long holes.

[0036] In this embodiment, a T-shaped slider is provided at the bottom of the first slide groove 3b corresponding to each wire core unit, and the T-shaped slider extends along the length direction of the first slide groove 3b. A T-shaped slide groove 3a is provided at the bottom of the wire core, and the T-shaped guide rail 2d is slidably inserted in the T-shaped slide groove 3a.

[0037] In some other embodiments, a step extending inward may be provided on the inner side wall of the first sliding groove 3b. At the first preset position, the step cooperates with the locking block 4 to clamp both sides of the conductor core unit 3, so as to fix its position. A long bolt may pass through the right end plate 1 (from right to left) and be threadedly connected to the conductor core unit 3 to fix and lock the two. Additionally, the T-shaped guide rail 2d may be set as a two-piece type, with a gap formed between the two sections of the guide rail. The bolt can pass through the left end plate (and the gap between the two sections of the T-shaped guide rail 2d) (from left to right) and be threadedly connected to the conductor core unit 3 to fix and lock the two. Alternatively, the bolt penetrates the left end plate from the (upper and lower) side and presses against the conductor core unit 3 to fix it firmly.

[0038] In some other embodiments, referring to the attached Figure 9 , the conductor core unit includes a base body 31 and a pair of moving plates 32. The base body 31 is arranged in an inverted T shape. The horizontal part of the base body 31 is slidably installed in the first sliding groove 3b. Moving plates 32 are respectively provided on both sides of the vertical part of the base body 31. An annular airbag 17 and tension springs 16 evenly distributed in the circumferential direction of the annular airbag 17 (corresponding to the four corner parts of the moving plate 32) are provided between the vertical part of the base body and the moving plate 32. When the annular airbag 17 deflates, the moving plate 32 can move inward under the action of the tension spring 16. A gas passage communicating with the annular airbag 17 is provided in the base body. The outlet end 31a of the gas passage is located in the horizontal part of the base body and extends along the left-right direction. A piston 18 is installed in the outlet end 31a of the gas passage. The rod part 19 of the piston 18 is fixed to the left end plate, specifically fixed to the spring limit seat. After the coil winding is completed, the fixture is removed, that is, the driving shaft of the winding machine is disengaged from the first key groove, the tip is disengaged from the tip docking hole 1a, the right end plate is removed, the plug plate 13 is retracted into the second sliding groove 2c, so that the knob pops out. The knob is rotated so that the short shaft ends of the locking block are aligned with the conductor core unit. The conductor core unit moves inward under the action of the first spring and fits with the short shaft ends of the locking block to reduce the overall width of the conductor core. At the same time, the piston 18 moves outward relative to the outlet end 31a of the gas passage to reduce the air pressure in the annular airbag 17. Under the action of the tension spring 16, the moving plate 32 moves inward to reduce the overall thickness of the conductor core. Thus, it is convenient for the coil to exit, avoiding deformation and wear caused by excessive pulling force when the coil exits.

[0039] In addition, a guide post 15 is installed on the base body 31 corresponding to each tension spring 16. One end of the guide post 15 is fixedly connected to the vertical part of the base body 31, and the other end thereof passes through the tension spring 16 and is in sliding and guiding cooperation with the moving plate 32. The guide post 15 is perpendicularly arranged relative to the moving plate 32 to guide the movement of the moving plate 32. Among them, the perforation of the moving plate 32 cooperating with the guide post is stepped, and a corresponding flange is provided at the end of the guide post. When the annular airbag 17 acts on the moving plate and pushes the moving plate outwards, the flange cooperates with the stepped surface of the perforation. On the one hand, it prevents the moving plate from coming off, and on the other hand, it positions the position of the moving plate. At this time, the distance between the outer end faces of a pair of moving plates is the preset width of the wire core.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A winding fixture for a rotor coil of a linear motor, comprising a core and a left end plate and a right end plate detachably connected to both sides of the core, characterized in that: The wire core comprises two wire core monomers which are arranged at intervals.

2. The winding fixture for the rotor coil of a linear motor according to claim 1, characterized in that: The inner side of the left end plate is provided with a first slide groove extending along the length direction of the wire core, and the two wire core monomers are slidably installed in the first slide groove. The first slide groove is located between the two wire core monomers and a locking block is rotatably installed. The locking block is elliptical, and first springs are respectively installed at both ends of the first slide groove. The first spring is used to press the wire core monomer to one side of the locking block.

3. The winding fixture for the rotor coil of a linear motor according to claim 2, characterized in that: The locking block is fixedly connected to the rotating shaft, and the rotating shaft is rotatably supported at the bottom of the first slide slot. A first limit block is provided on the rotating shaft, and a second limit block is provided at the bottom of the first slide slot. The first limit block and the second limit block cooperate to limit the rotation angle of the rotating shaft.

4. The winding fixture for the rotor coil of a linear motor according to claim 3, characterized in that: The rotating shaft passes through one end of the left end plate and is slidably sleeved with a knob. The outer wall of the left end plate is provided with a first key slot, and the bottom of the first key slot is provided with a second key slot. The head of the knob can be embedded in the second key slot.

5. The winding fixture for the rotor coil of a linear motor according to claim 4, characterized in that: The rotating shaft comprises a rotating support portion with a circular cross section and a sliding matching portion with a regular polygonal cross section. The sliding matching portion is slidably inserted into the regular polygonal inner hole of the knob and elastically connected via a second spring.

6. The winding fixture for the rotor coil of a linear motor according to claim 5, characterized in that: A T-shaped sliding block is provided at the bottom of the first sliding groove, a T-shaped first sliding groove is provided at the bottom of the wire core, and the T-shaped guide rail is slidably inserted in the T-shaped first sliding groove.

7. The winding fixture for the rotor coil of a linear motor according to claim 6, characterized in that: The wire core monomer includes a base body and a pair of movable plates. The base body is arranged in an inverted T shape. The transverse part of the base body is slidably installed in the first slide groove. The movable plates are respectively provided on both sides of the vertical part of the base body. An annular airbag and a tension spring evenly distributed around the annular airbag are provided between the vertical part of the base body and the movable plate. When the annular airbag is deflated, the movable plate can move inward under the action of the tension spring. A gas channel connected to the annular airbag is provided in the base body. The outlet end of the gas channel is located in the transverse part of the base body and extends in the left and right directions. A piston is installed in the outlet end of the gas channel, and the rod of the piston is fixed to the left end plate.

8. The winding fixture for the rotor coil of a linear motor according to claim 7, characterized in that: The base is provided with a guide column corresponding to each tension spring, and the guide column penetrates through the tension spring and cooperates with the sliding guide of the movable plate.

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