Single-head three-station vertical winding machine

Abstract

The utility model provides a single-head three-station vertical winding machine, and belongs to the technical field of stator winding equipment. The single-head three-station vertical winding machine comprises a rack body, a winding mechanism, a turntable indexing mechanism and a trimming mechanism, wherein the rotary table indexing mechanism mainly comprises an indexing rotary table and a wire hanging cylinder, the indexing rotary table is of a Y-shaped three-branch structure, a circular rotary table sealing plate is coaxially fixed to the top of the indexing rotary table, and a rotary table divider is installed at the bottom of the indexing rotary table to control the rotation angle of the indexing rotary table; the indexing sealing plates are correspondingly installed above the tail ends of the three branches of the indexing rotary disc respectively, the center handle sequentially penetrates through the indexing sealing plates, the rotary disc sealing plates, the indexing rotary disc and the indexing bearing seat from top to bottom, the wire hanging cylinders are coaxially installed on the indexing sealing plates, and the wire hanging cylinders are in linkage with the center handle and are controlled by the indexing wire hanging structures below to rotate and ascend and descend. Compared with a single-head double-station vertical winding machine in the prior art, the single-head double-station vertical winding machine has the advantages that the rotation interval is shorter, the winding efficiency is higher, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of stator winding equipment, and specifically relates to a single-head three-station vertical winding machine. Background Technology

[0002] Stator coils are a crucial component of the motor stator. Traditionally, stator coils are manufactured manually, which suffers from high labor costs, low production efficiency, low winding precision, and difficulty in guaranteeing finished product quality. To overcome the drawbacks of manual winding, existing technology has developed vertical winding machines that can automate coil winding. These machines work by using a drive motor to rotate the winding wheel, while a tension adjustment device maintains the tension of the wire, ensuring winding stability and precision. After winding, the wire is cut by a cutting device and finally retrieved by a take-up reel.

[0003] According to patent application number CN202122194815.6, a single-head, dual-station vertical winding machine is described. The wire to be wound is connected to the winding pan, and a servo motor drives the central shaft to rotate. The central shaft is connected to the drive shaft, and a fixed base is supported by a column. The servo motor is connected to a lifting screw, which passes through the fixed frame and is threaded into the fixed base, allowing the fixed base to slide up and down. Besides the single-head, dual-station vertical winding machine, other models include three-head, six-station and four-head, eight-station machines, which are basically configured with one head corresponding to two stations in rotation. To further improve the working efficiency of the vertical winding machine, we propose a vertical winding machine structure with one head corresponding to three stations in rotation. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a single-head, three-station vertical winding machine.

[0005] The purpose of this utility model can be achieved through the following technical solution: a single-head three-station vertical winding machine, including a frame body, a winding mechanism, a turntable indexing mechanism, and a wire cutting mechanism; the frame body includes an upper top plate, a lower bottom plate, and a frame column supporting and connecting the two; the winding mechanism is suspended and passes through the front side of the upper top plate; the turntable indexing mechanism is set at the top front side of the lower bottom plate and cooperates with the winding mechanism; the wire cutting mechanism is set at the bottom rear side of the upper top plate; and a power distribution box is installed on the rear side of the upper top plate and the lower bottom plate of the frame body.

[0006] The winding mechanism includes a lifting motor, which controls the movable plate assembly to move up and down via a lifting screw. A push shaft is vertically installed at the bottom center of the movable plate assembly. A central shaft is movably inserted through the center of the push shaft. A winding front mold is installed at the bottom of the central shaft via a mold seat. A synchronous pulley assembly is sleeved on the push shaft. An angled fork is inserted between the synchronous pulley assemblies. Several branches of the angled fork extending outward are connected to a balance ring via winding fixing posts. A wire-passing structure is installed on the winding fixing post at the bottom of the branch of the angled fork pointing to the rear-side wire-cutting mechanism, and a winding rod is installed at its bottom.

[0007] The indexing mechanism mainly includes an indexing turntable and a hanging drum. The indexing turntable has a Y-shaped three-pronged structure, with a circular turntable sealing plate coaxially fixed on its top. The top of the turntable sealing plate is equipped with indexing sealing plates above the tail ends of the three-pronged structure of the indexing turntable. Indexing bearing seats are installed at the bottom of the tail ends of the three-pronged structure of the indexing turntable. The central handle passes through the indexing sealing plate, the turntable sealing plate, the indexing turntable, and the indexing bearing seats from top to bottom.

[0008] A turntable divider is installed at the bottom center of the indexing turntable. The turntable divider is mounted above the fixed base plate via a connecting partition and is controlled by the divider motor. The fixed base plate is movably connected to the lower base plate and has a movable adjustment structure. The hanging wire spool is coaxially mounted on the indexing sealing plate and consists of a hanging wire cup at the bottom and several hanging wire rods arranged in a circumferential array on it. The hanging wire cup is fixed to the top of the central handle and linked with it. A height-adjustable indexing hanging wire structure is correspondingly provided on the rear side of the turntable divider below the central handle.

[0009] The wire cutting mechanism includes a wire cutting gun, a front and rear slide rail structure, a horizontal slide rail structure, and a wire cutting lifting structure. The front and rear slide rail structure is fixed to the bottom of the upper top plate and mainly includes a moving slide rail, a transmission screw, a slide rail seat, and a slide rail motor. The horizontal slide rail structure is fixed to the slide rail seat of the front and rear slide rail structure via a horizontal sliding plate and has a similar structure to the front and rear slide rail structure. The wire cutting lifting structure is fixed to the slide rail seat of the horizontal slide rail structure via a fixed bracket. The wire cutting lifting structure controls the lifting movement of the wire cutting gun.

[0010] In the above-mentioned single-head three-station vertical winding machine, the upper top plate of the frame body is the main plate of the vertical winding machine, and the front end of the main plate is connected to an intelligent control screen through a rotatable cantilever.

[0011] In the above-mentioned single-head three-station vertical winding machine, a wire frame is provided on the rear side of the machine frame body in conjunction with the vertical winding machine, and a wire tube block and a missing wire seat are installed on the crossbar of the wire frame.

[0012] In the above-mentioned single-head three-station vertical winding machine, the angular flying fork has a wire-passing port on the winding fixing post at the bottom of the fork of the wire-cutting mechanism pointing to the rear. The wire-passing structure has a wire-passing slider on the inner side of the wire-passing port. The top of the wire-passing slider is connected to the wire-pushing shaft at the center of the synchronous belt pulley group through a wire-passing tube.

[0013] In the above-mentioned single-head three-station vertical winding machine, a cup holder is provided at the bottom front end of the upper top plate on the front side of the winding mechanism. The cup holder includes a pressure plate. The pressure plate is movably connected to a clamping block sliding rod on the side facing away from the winding front mold through a sliding rod seat. A cup holder clamping block is fixedly connected to the bottom of the clamping block sliding rod.

[0014] In the above-mentioned single-head three-station vertical winding machine, the indexing and hanging structure includes a positioning shaft. The top of the positioning shaft is correspondingly matched with the bottom of the central handle. Its bottom is fixedly connected to the working end of the indexing motor through a motor plate. The bottom of the motor plate is provided with indexing slide rods on both sides of the indexing motor. The indexing slide rods pass through the connecting partition through the slide rod sleeves and are fixedly connected to a cylinder plate at the bottom. The cylinder plate is controlled by the lifting cylinder to drive the entire indexing and hanging structure to move up and down.

[0015] In the aforementioned single-head three-station vertical winding machine, the bottom of the fixed base plate is provided with a flat keyway, which is movably connected to the lower base plate through the keyway connection. The movable adjustment structure includes an adjusting screw, and a rocker arm is installed at the front end of the adjusting screw. The rocker arm is fixed to the lower base plate through a connecting seat, and its rod is set on the fixed base plate through a fixed seat. When the rocker arm is rotated to drive the adjusting screw to rotate, the fixed base plate will move back and forth along the flat keyway of the base plate.

[0016] Compared with the prior art, the single-head three-station vertical winding machine provided by this utility model has a shorter rotation interval and higher winding efficiency per machine compared with the existing single-head two-station vertical winding machine, which can effectively improve production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this single-head, three-station vertical winding machine;

[0018] Figure 2 This is a schematic diagram of the front and side views of the winding mechanism in this single-head, three-station vertical winding machine;

[0019] Figure 3 This is a schematic diagram of the rear side structure of the winding mechanism in this single-head three-station vertical winding machine;

[0020] Figure 4 This is a schematic diagram of the front and side views of the indexing mechanism of the turntable in this single-head, three-station vertical winding machine;

[0021] Figure 5This is a schematic diagram of the rear side structure of the rotary table indexing mechanism in this single-head three-station vertical winding machine;

[0022] Figure 6 This is a schematic diagram of the wire cutting mechanism in this single-head, three-station vertical winding machine.

[0023] In the above diagram, 100 is the frame body; 101 is the top plate; 102 is the bottom plate; 103 is the frame column; 110 is the power distribution box; 120 is the intelligent control panel; 130 is the wire rack; 131 is the wire conduit block; 132 is the wire holder; 200 is the winding mechanism; 211 is the lifting motor; 212 is the lifting screw; 213 is the movable plate assembly; 214 is the wire push shaft; 215 is the central shaft; 216 is the central shaft. 217. Mold base; 221. Winding front mold; 222. Synchronous belt pulley set; 223. Angle fork; 224. Winding fixing post; 235. Balance ring; 236. Wire guide structure; 237. Wire guide opening; 238. Wire guide slider; 239. Wire guide tube; 240. Winding rod; 250. Cup holder; 251. Wire pressure plate; 252. Slide rod seat; 253. Clamping block sliding rod; 254. Cup holder clamping block;

[0024] 300. Turntable indexing mechanism; 310. Indexing turntable; 311. Turntable sealing plate; 312. Indexing sealing plate; 313. Center handle; 314. Indexing bearing seat; 320. Turntable divider; 321. Divider motor; 322. Connecting partition; 330. Wire hanging spool; 331. Wire hanging cup; 332. Wire hanging rod; 340. Indexing wire hanging structure; 341. Positioning shaft; 342. Motor plate; 343. Indexing motor; 344. Indexing slide bar; 345. Cylinder plate; 346. Lifting cylinder; 350, fixed base plate; 351, flat keyway; 360, movable adjustment structure; 361, adjusting screw; 362, fixed seat; 363, connecting seat; 364, rocker arm; 400, wire cutting mechanism; 410, wire cutting gun; 411, fixed bracket; 420, front and rear slide rail structure; 421, movable slide rail; 422, transmission screw; 423, slide rail seat; 424, slide rail motor; 430, horizontal slide rail structure; 431, horizontal sliding plate; 440, wire cutting lifting structure. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figures 1 to 6As shown, this single-head, three-station vertical winding machine includes a frame body 100, a winding mechanism 200, a turntable indexing mechanism 300, and a wire cutting mechanism 400. The frame body 100 includes an upper top plate 101, a lower bottom plate 102, and a frame column 103 supporting and connecting the two. The winding mechanism 200 is suspended and passes through the front side of the upper top plate 101. The turntable indexing mechanism 300 is located at the top front side of the lower bottom plate 102 and cooperates with the winding mechanism 200. The wire cutting mechanism 400 is located at the bottom rear side of the upper top plate 101.

[0027] like Figure 1 As shown, a distribution box 110 is installed on the rear side of the upper top plate 101 and lower bottom plate 102 of the frame body 100. The upper top plate 101 of the frame body 100 is the main board of the vertical winding machine. The front end of the main board is connected to an intelligent control panel 120 through a rotatable cantilever for convenient intelligent control operation. A wire frame 130 is provided on the rear side of the frame body 100 in conjunction with the vertical winding machine. A wire tube block 131 and a missing wire holder 132 are installed on the crossbar of the wire frame 130 for hanging and supplementing wires in the vertical winding machine.

[0028] like Figures 2 to 3 As shown, the winding mechanism 200 includes a lifting motor 211, which controls the movable plate assembly 213 to move up and down via a lifting screw 212. A push shaft 214 is vertically mounted at the bottom center of the movable plate assembly 213. A central shaft 215 is movably inserted through the center of the push shaft 214. A winding front mold 217 is mounted at the bottom of the central shaft 215 via a mold base 216. The winding front mold 217 is a winding specification mold for the stator coil, thus forming a transmission structure in which the lifting motor 211 controls the lifting motion of the winding front mold 217.

[0029] A synchronous pulley set 221 is fitted onto the push shaft 214. An angled fork 222 is inserted and installed between the synchronous pulley sets 221. Several branches extending outward from the angled fork 222 are connected to a balance ring 224 through a winding fixing post 223. The balance ring 224 is used to assist the winding mechanism 200 in maintaining winding stability. The angled fork 222 has a wire-passing port 231 at the winding fixing post 223 at the bottom of the branch pointing to the rearward wire-cutting mechanism 400, and a corresponding wire-passing structure 230 is installed. The wire-passing structure 230 has a wire-passing slider 232 inside the wire-passing port 231. The top of the wire-passing slider 232 is connected to the push shaft 214 at the center of the synchronous pulley set 221 through a wire-passing tube 233. The angled fork 222 has a winding rod 240 installed at the bottom of the winding fixing post 223 at the bottom of the fork of the wire cutting mechanism 400 pointing to the rear. The winding rod 240 has a winding head at its end, and a rotating head is eccentrically provided on the side of the winding head near the winding front mold 217 for wire feeding.

[0030] A cup holder 250 is provided at the bottom front end of the upper top plate 101 on the front side of the winding mechanism 200. The cup holder 250 includes a wire pressing plate 251. The wire pressing plate 251 is movably connected to a clamping block sliding rod 253 via a slide rod seat 252 on the side facing away from the winding front mold 217. A cup holder 254 is fixedly connected to the bottom of the clamping block sliding rod 253. The cup holder 250 is used to separate and protect the wire during the winding of the winding rod 240, preventing the wire from being thrown out under rapid rotation and interfering with the operation of other stations.

[0031] like Figures 4 to 5 As shown, the rotary indexing mechanism 300 mainly includes an indexing rotary table 310 and a hanging reel 330. The indexing rotary table 310 has a Y-shaped three-pronged structure, with a circular rotary table sealing plate 311 coaxially fixed to its top. Above the three prongs of the indexing rotary table 310, indexing sealing plates 312 are respectively installed on the top of the rotary table sealing plate 311. Indexing bearing seats 314 are respectively installed at the bottom of the three prongs of the indexing rotary table 310. The central handle 313 passes through the indexing sealing plate 312, the rotary table sealing plate 311, the indexing rotary table 310, and the indexing bearing seat 314 from top to bottom.

[0032] A turntable divider 320 is installed at the center bottom of the indexing turntable 310. The turntable divider 320 is used to control the rotation angle of the indexing turntable 310 and its turntable sealing plate 311 and indexing sealing plate 312, thereby realizing the switching operation of the three workstations. The turntable divider 320 is mounted above the fixed base plate 350 through a connecting partition 322 and is controlled by the divider motor 321. The bottom of the fixed base plate 350 has a flat keyway 351, which is movably connected to the lower base plate 102 through the keyway connection. A movable adjustment structure 360 ​​is provided on it. The movable adjustment structure 360 ​​includes an adjusting screw 361. The front end of the adjusting screw 361 is equipped with a rocker arm 364, which is fixed to the lower base plate 102 through a connecting seat 363. Its rod part is set on the fixed base plate 350 through the fixed seat 362. When the rocker arm 364 is rotated, causing the adjusting screw 361 to rotate, the fixed base plate 350 will move back and forth along the base plate key.

[0033] The wire-hanging drum 330 is coaxially mounted on the indexing plate 312 and consists of a wire-hanging cup 331 at the bottom and several wire-hanging rods 332 arranged in a circumferential array on it. After the winding wire is wound on the winding die 217, the coil is pressed between the wire-hanging rods 332 of the wire-hanging drum 330 by the cup holder 250. The wire-hanging cup 331 is fixedly connected to the top of the central handle 313 and linked with it. A height-adjustable indexing wire-hanging structure 340 is correspondingly provided on the rear side of the turntable divider 320 below the central handle 313. The indexing wire-hanging structure 340 includes a positioning shaft 341. The top of the positioning shaft 341 is correspondingly engaged with the bottom of the central handle 313, and its bottom is fixedly connected to the working end of the indexing motor 343 through the motor plate 342. The indexing motor 343 controls the rotation angle of the wire-hanging drum 330, thereby controlling how many stator coils are hung on one wire-hanging drum 330. The bottom of the motor plate 342 is provided with indexing slide rods 344 on both sides of the indexing motor 343. The indexing slide rods 344 pass through the connecting partition 322 through the slide rod sleeve and are fixedly connected to the cylinder plate 345 at the bottom. The cylinder plate 345 is controlled by the lifting cylinder 346 to drive the entire indexing hanging structure 340 to move up and down.

[0034] like Figure 6 As shown, the wire cutting mechanism 400 includes a wire cutting gun 410, a front and rear slide rail structure 420, a horizontal slide rail structure 430, and a wire cutting lifting structure 440. The front and rear slide rail structure 420 is fixedly connected to the bottom of the upper top plate 101 and mainly includes a moving slide rail 421, a transmission screw 422, a slide rail seat 423, and a slide rail motor 424. The horizontal slide rail structure 430 is fixedly connected to the slide rail seat 423 of the front and rear slide rail structure 420 through a horizontal sliding plate 431 and has a similar structure to the front and rear slide rail structure 420. The wire cutting lifting structure 440 is fixedly connected to the slide rail seat 423 of the horizontal slide rail structure 430 through a fixed bracket 411. The wire cutting lifting structure 440 controls the lifting movement of the wire cutting gun 410. The wire cutting mechanism 400 cooperates with the winding rod 240 of the winding mechanism 200. When a set of coils is wound on the winding front mold 217, the wire cutting mechanism 400 will extend forward to cut the wire, so that the coil is pressed into the hanging tube 330. After being cut, it will retract until the next set of coils is wound.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0036] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A single-head three-station vertical winding machine, comprising a frame body (100), a winding mechanism (200), a turntable indexing mechanism (300), and a wire cutting mechanism (400); the frame body (100) comprises an upper top plate (101), a lower bottom plate (102), and a frame column (103) supporting and connecting the two; the winding mechanism (200) is suspended and passes through the front side of the upper top plate (101); the turntable indexing mechanism (300) is located at the top front side of the lower bottom plate (102) and cooperates with the winding mechanism (200); the wire cutting mechanism (400) is located at the bottom rear side of the upper top plate (101); a power distribution box (110) is installed on the rear side of the upper top plate (101) and the lower bottom plate (102) of the frame body (100); Its features are, The winding mechanism (200) includes a lifting motor (211), which controls the movable plate assembly (213) to move up and down via a lifting screw (212). A pusher shaft (214) is vertically mounted at the bottom center of the movable plate assembly (213). A central shaft (215) is movably inserted through the center of the pusher shaft (214). A winding front mold (217) is mounted at the bottom of the central shaft (215) via a mold base (216). The pusher shaft (214)... 14) A synchronous pulley set (221) is fitted on the upper part, and a angular flying fork (222) is inserted and installed between the synchronous pulley sets (221). Several branches of the angular flying fork (222) extending outward are connected to the balance ring (224) through the winding fixing post (223). The angular flying fork (222) has a wire passing structure (230) installed on the winding fixing post (223) at the bottom of the branch pointing to the rear wire cutting mechanism (400), and a winding rod (240) is installed at its bottom. The indexing mechanism (300) mainly includes an indexing turntable (310) and a hanging tube (330). The indexing turntable (310) has a Y-shaped three-pronged structure. A circular turntable sealing plate (311) is coaxially fixed on its top. An indexing sealing plate (312) is installed on the top of the turntable sealing plate (311) above the three-pronged tail end of the indexing turntable (310). An indexing bearing seat (314) is installed at the bottom of the three-pronged tail end of the indexing turntable (310). The central handle (313) passes through the indexing sealing plate (312), the turntable sealing plate (311), the indexing turntable (310), and the indexing bearing seat (314) from top to bottom. A turntable divider (320) is installed at the bottom center of the indexing turntable (310). The turntable divider (320) is mounted above the fixed base plate (350) via a connecting partition (322) and is controlled by the divider motor (321). The fixed base plate (350) is movably connected to the lower base plate (102) and is provided with a movable adjustment structure (360). The hanging cylinder (330) is coaxially mounted on the indexing sealing plate (312) and is composed of a hanging cup (331) at the bottom and several hanging rods (332) arranged in a ring array on it. The hanging cup (331) is fixedly connected to the top of the central handle (313) and linked with it. A height-adjustable indexing hanging structure (340) is provided on the rear side of the turntable divider (320) below the central handle (313). The wire cutting mechanism (400) includes a wire cutting gun (410), a front and rear slide rail structure (420), a horizontal slide rail structure (430), and a wire cutting lifting structure (440). The front and rear slide rail structure (420) is fixedly connected to the bottom of the upper top plate (101) and mainly includes a movable slide rail (421), a transmission screw (422), a slide rail seat (423), and a slide rail motor (424). The horizontal slide rail structure (430) is fixedly connected to the slide rail seat (423) of the front and rear slide rail structure (420) through a horizontal sliding plate (431) and has a similar structure to the front and rear slide rail structure (420). The wire cutting lifting structure (440) is fixedly connected to the slide rail seat (423) of the horizontal slide rail structure (430) through a fixed bracket (411). The wire cutting lifting structure (440) controls the lifting movement of the wire cutting gun (410).

2. The single-head three-station vertical winding machine according to claim 1, characterized in that, The top plate (101) of the frame body (100) is the main plate of the vertical winding machine, and the front end of the main plate is connected to the intelligent control screen (120) through a rotatable cantilever.

3. A single-head, three-station vertical winding machine according to claim 1, characterized in that, A wire frame (130) is provided on the rear side of the frame body (100) in conjunction with the vertical winding machine. A wire tube block (131) and a wire gap seat (132) are installed on the crossbar of the wire frame (130).

4. A single-head, three-station vertical winding machine according to claim 1, characterized in that, The angled fork (222) has a wire-passing port (231) on the wire-winding fixing post (223) at the bottom of the fork pointing to the rear wire-cutting mechanism (400). The wire-passing structure (230) has a wire-passing slider (232) inside the wire-passing port (231). The top of the wire-passing slider (232) is connected to the wire-pushing shaft (214) at the center of the synchronous pulley group (221) through a wire-passing tube (233).

5. A single-head, three-station vertical winding machine according to claim 1, characterized in that, The winding mechanism (200) has a cup holder (250) at the bottom of the front end of the upper top plate (101) on the front side. The cup holder (250) includes a pressure plate (251). The pressure plate (251) is movably connected to a clamping block sliding rod (253) on the side facing away from the winding front mold (217) via a sliding rod seat (252). The bottom of the clamping block sliding rod (253) is fixedly connected to a cup holder (254).

6. A single-head, three-station vertical winding machine according to claim 1, characterized in that, The indexing and hanging structure (340) includes a positioning shaft (341), the top of which is matched with the bottom of the center handle (313), and its bottom is fixedly connected to the working end of the indexing motor (343) through a motor plate (342). The bottom of the motor plate (342) is provided with indexing slide rods (344) on both sides of the indexing motor (343). The indexing slide rods (344) pass through the connecting partition (322) through the slide rod sleeve, and are fixedly connected to the cylinder plate (345) at the bottom. The cylinder plate (345) is controlled by the lifting cylinder (346) to drive the entire indexing and hanging structure (340) to move up and down.

7. A single-head three-station vertical winding machine according to claim 1, characterized in that, The fixed base plate (350) has a flat keyway (351) at its bottom, and is movably connected to the lower base plate (102) via the keyway connection. The movable adjustment structure (360) includes an adjustment screw (361), and a rocker arm (364) is installed at the front end of the adjustment screw (361). The rocker arm is fixed to the lower base plate (102) via a connecting seat (363), and its rod is set on the fixed base plate (350) via a fixed seat (362). When the rocker arm (364) is rotated to drive the adjustment screw (361) to rotate, the fixed base plate (350) will move back and forth along the flat keyway of the base plate.

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