Multi-station winding equipment for stator core

Abstract

A stator core multi-station winding device provided by the present invention comprises a rack, the rack is provided with a carrying manipulator, a feeding mechanism, a winding mechanism and a coil holder, the coil holder is installed on the rear side of the rack, the carrying manipulator is arranged above the feeding mechanism and is used for carrying stator loading and unloading, the winding mechanism is arranged on the rear side of the feeding mechanism and is installed with the rack in a sliding manner, and the winding mechanism is arranged on the rack. The wire frame is arranged on the rear side of the winding mechanism and used for supplying wires, the feeding mechanism comprises a supporting base, a sliding base, at least two sets of stator conveying tables, a positioning device, a first rotation driving piece, a first X-axis driving piece and a first lifting driving piece, and the positioning device is arranged at the front end of the stator conveying table and used for clamping and positioning stator feeding and discharging of the single set of positioning conveying table; and a rotating seat is arranged on the rear side of the single-group positioning conveying table and is used for rotationally driving the stator. The stator core multi-station winding equipment provided by the invention is high in automation degree and compact in layout structure, can simultaneously push multiple groups of stators to perform winding operation, and effectively improves the stator winding production efficiency.

Description

Technical Field

[0001] This invention relates to the field of stator winding machine technology, specifically a multi-station stator core winding machine. Background Technology

[0002] In modern industrial production, transportation, household appliances, and many other fields, electric motors are widely used as core power devices, and their performance directly affects the operating efficiency and stability of various equipment. The stator, as one of the core components of the motor, primarily functions to generate a rotating magnetic field, providing the basic power for the motor's operation. Its structure typically consists of three parts: the stator core, the stator windings, and the frame. The stator has multiple winding pole blocks. When winding the stator, the pole blocks need to be wound sequentially, and the wire cut after winding is completed. This process is repeated until all the pole blocks are wound. To meet the automation requirements of stator winding, various types of stator winding machines have appeared on the market. Through the cooperation of mechanical structures and electronic control systems, the stator winding process is automated. Currently, most mainstream stator winding machines employ a single-station design for automated winding, allowing only one stator to be wound at a time. When facing the demands of large-scale mass production, this single-station operation mode makes it difficult to improve production efficiency and cannot match the high-efficiency production pace of modern manufacturing. For stator products of different specifications, the fixture changing process of existing winding machines is cumbersome and complex, with long changeover times. In view of this situation, developing a new type of stator winding machine with multi-station collaborative operation and rapid changeover capability is of great practical significance. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-station winding device for stator cores to solve the technical problems in the background art.

[0004] To achieve the aforementioned objectives, the present invention provides the following technical solution:

[0005] A multi-station stator core winding device includes a frame, on which a handling robot, a feeding mechanism, a winding mechanism, and a wire frame are mounted. The wire frame is installed at the rear of the frame. The handling robot is above the feeding mechanism and used for handling stator loading and unloading. The winding mechanism is located behind the feeding mechanism and is slidably mounted to the frame. The wire frame is located behind the winding mechanism and used for feeding wire. The feeding mechanism includes a support base, a slide, at least two sets of stator conveyor tables, a positioning device, a first rotary drive, a first X-axis drive, and a first lifting drive. The stator conveyor tables are located above the support base, which is mounted to the frame. The support base is a gantry structure. The slide is located inside the support base. Several sets of stator conveyor tables are equidistantly arranged laterally along the Y-axis on the support base. Above, the stator conveyor table is slidably installed below the slide block. The first rotary drive is installed below the slide block and slidably connected to it. The first rotary drive passes through the slide block and is driven to install on the stator conveyor table. The first lifting drive is fixed on the slide block and drives the first lifting drive to move up and down. The first X-axis drive is installed on the rear side of the slide block and fixedly installed with the frame. The first X-axis drive drives the slide block to move back and forth within the support seat. The positioning device clamps and positions the stator for loading and unloading at the front end of the stator conveyor table. A rotating seat is provided on the rear side of the single positioning conveyor table for positioning and placing a single stator for winding operations. The rotating seat is movably installed with the frame and is located at the front end of the winding mechanism.

[0006] The stator conveying table includes a mounting base and two sets of identical positioning fixtures. The front and rear ends of the mounting base are respectively open and recessed limiting holes. The limiting holes penetrate the upper and lower end faces of the mounting base. The left and right ends of the limiting holes near the openings are respectively provided with a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate have the same structure. The first clamping plate and the second clamping plate are elastically installed with the mounting base. The positioning fixture is elastically clamped in the limiting holes.

[0007] The positioning fixture includes a cylindrical base and a support column. The support column is vertically fixed above the base. The top of the support column is a limiting platform for positioning and placing the stator. A plug is vertically installed below the base for insertion with the rotating seat.

[0008] The base has concave grooves at its left and right ends. The difference between the upper and lower ends of the grooves and the outer wall of the base forms two stepped locking positions, namely an upper limit step and a lower limit step. The upper limit step is supported on the top surface of the limiting hole, and the lower limit step is supported on the bottom surface of the limiting hole. The grooves have concave slots along the vertical direction. The first clamping plate and the second clamping plate both have protruding clamping parts that are inserted into the slots.

[0009] The first rotary drive component includes a mounting plate, a first cylinder, a first rack, and a first drive rod. The mounting plate is slidably mounted on a slide block via a slide frame. The first cylinder is fixed on the mounting plate. The drive shaft of the first cylinder is driven and mounted to the first rack. The first rack is arranged laterally and is slidably mounted to the mounting plate. The top of the first drive rod passes through the slide block and is fixedly mounted to the mounting base of the stator conveyor table. The bottom of the first drive rod is equipped with a first gear that meshes with the first rack.

[0010] The first lifting drive component is cylinder driven, the first lifting drive component is mounted on the slide, and the drive shaft of the first lifting drive component is driven to be mounted on the mounting plate.

[0011] The first X-axis drive component includes a second cylinder and several guide shafts. The second cylinder is fixed on the frame, and the drive shaft of the second cylinder is driven and installed with the slide. The guide shafts are arranged along the transverse X-axis direction. One end of the guide shaft is fixedly installed with the frame, and the other end is inserted into the slide and slides.

[0012] The rotating seat is driven to rotate along the Z-axis on the support seat by a second rotating drive component. The rotating seat is a cylindrical structure. The rotating seat has a hole on its top for insertion into the pin of the positioning fixture. The outer side of the pin protrudes outward with a limit strip. The hole has a corresponding anti-fool hole that inserts into the limit strip. The hole and the anti-fool hole are connected.

[0013] The second rotary drive component includes a first motor and several second drive rods. The second drive rods are coaxially mounted to the bottom of the rotary base. A driven wheel is fixed below the second drive rod. The first motor is equipped with a drive wheel. The drive wheel and the driven wheel are driven by a gear belt. The first motor drives all the second drive rods to rotate synchronously.

[0014] The positioning device includes a connecting plate and several sets of positioning components with the same structure. Each set of positioning components corresponds to a single set of positioning fixtures. Each positioning component includes a third cylinder and a gripper assembly. The gripper assembly is mounted on the drive shaft of the third cylinder and is used to grip the support column of the positioning fixture.

[0015] Compared with existing technologies, the stator core multi-station winding equipment provided by this invention has a high degree of automation and a compact layout. It can simultaneously advance multiple sets of stators for winding operations, effectively improving stator winding production efficiency. The positioning device accurately clamps the single set of stator conveyor tables, and the rotating seat performs secondary positioning of individual stators, ensuring the positional accuracy control of the stators throughout the entire process of loading, unloading, conveying, and winding. This avoids problems such as winding misalignment and uneven wire spacing caused by positioning deviations. In addition, the positioning fixture and mounting base in this application adopt an elastic clamping installation structure, which allows for quick replacement of positioning fixtures of different specifications by simply inserting and removing the corresponding fixture. This can effectively meet the production needs of products with multiple specifications. Attached Figure Description

[0016] Figure 1 : A three-dimensional structural diagram of this application;

[0017] Figure 2 Side view of this application;

[0018] Figure 3 : 3D structural diagram of the feeding mechanism and frame installation;

[0019] Figure 4 : 3D structural diagram of a handling robot;

[0020] Figure 5 : 3D structural diagram of the feeding mechanism;

[0021] Figure 6 : Figure 5 Enlarged view of point D;

[0022] Figure 7 : Installation structure diagram of the second rotary drive component and the rotary seat;

[0023] Figure 8 : Installation structure diagram of the first rotary drive component;

[0024] Figure 9 : 3D structural diagram of the stator conveyor table;

[0025] Figure 10 : 3D structural diagram of the mounting base;

[0026] Figure 11 Top view of the first and second clamping plates;

[0027] Figure 12 : 3D structural diagram of the positioning fixture;

[0028] Figure 13 : Front view of the positioning fixture;

[0029] Figure 14 : 3D structural diagram of the rotating seat. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] Specific Implementation Example 1: Please refer to Figures 1 to 14 In this embodiment of the invention, a multi-station stator core winding device includes a frame 1. The frame 1 is equipped with a handling robot 2, a feeding mechanism 6, a winding mechanism 4, and a wire frame 3. The wire frame 3 is installed at the rear of the frame 1. The handling robot 2 is positioned above the feeding mechanism 6 for handling the stator core. The handling robot 2 includes several sets of clamping mechanisms 203, a lifting drive assembly 202, and an X-axis drive assembly 201. The lifting drive assembly 202 and the X-axis drive assembly 201 control the clamping mechanisms 203 horizontally. The winding mechanism 4 is located behind the feeding mechanism 6 and is slidably mounted with the frame 1. A cutting mechanism 5 is installed above the winding mechanism 4 to cut the wire. The wire frame 3 is located behind the winding mechanism 4 for feeding the wire. The feeding mechanism 6 includes a support base 7, a slide 8, at least two sets of stator conveyor tables 14, a positioning device 13, a first rotary drive 10, a first X-axis drive 12, and a first lifting drive 9. The stator conveyor tables 14 are located above the support base 7. In this embodiment, four sets of identical structures are provided. The stator conveyor table 14 of this application is fixedly installed on the frame 1 with a support base 7. The support base 7 is a gantry structure. The slide 8 is inside the support base 7. Four sets of stator conveyor tables 14 are arranged equidistantly along the Y-axis above the support base 7. The stator conveyor tables 14 are slidably installed below the slide 8. The first rotary drive 10 is installed below the slide 8 and slidably connected to the slide 8. The first rotary drive 10 passes through the slide 8 and is driven by the stator conveyor table 14. The first lifting drive 9 is fixed on the slide 8 to drive the first lifting... The drive component 9 moves up and down. The first X-axis drive component 12 is installed on the rear side of the slide 8 and fixedly installed with the frame 1. The first X-axis drive component 12 drives the slide 8 to move back and forth in the support seat 7. The positioning device 13 clamps and positions the stator conveyor 14 for loading and unloading the stator at the front end of the stator conveyor 14. The rear side of the single stator conveyor 14 is provided with a rotating seat 7 for positioning and placing a single stator for winding operation. The rotating seat 7 is movably installed with the frame 1 and is located at the front end of the winding mechanism 4.

[0032] The stator conveying table 14 of this application includes a mounting base 15 and two sets of positioning fixtures 16 with identical structures. The front and rear ends of the mounting base 15 are respectively open and recessed limiting holes 1501. The limiting holes 1501 are rectangular and penetrate through the upper and lower end faces of the mounting base 15. The left and right ends of the limiting holes 1501 near the opening are respectively provided with a first clamping plate 1502 and a second clamping plate 1503. The first clamping plate 1502 and the second clamping plate 1503 have the same structure. The first clamping plate 1502 and the second clamping plate 1503 are elastically installed with the mounting base 15. The first clamping plate and the second clamping plate 1503 are elastically connected to the mounting base 15 through compression springs (not shown in the figure). The positioning fixtures 16 are elastically clamped in the limiting holes 1501 through the first clamping plate 1502 and the second clamping plate 1503.

[0033] The positioning fixture 16 of this application includes a cylindrical base 1601 and a support column 1602. The support column 1602 is vertically fixed above the base 1601 and is coaxially installed with the base 1601. The top of the support column 1602 is a limiting platform 1602-1 for positioning and placing the stator. A vertical insertion post 1603 is installed below the base 1601 for insertion with the rotating seat. The rotating seat 17 rotates along the Z-axis on the support seat 7 under the drive of the second rotating drive component 11. The rotating seat 17 has a cylindrical structure. The rotating seat 17 has an insertion hole 1701 on its top for insertion into the insertion post 1603 of the positioning fixture 16. The outer side of the insertion post 1603 has a limiting strip 1604 protruding outward. The insertion hole 1701 has a corresponding anti-fool hole 1702 that is inserted into the limiting strip 1604. The insertion hole 1701 and the anti-fool hole 1702 are connected. The limiting strip 1604 can limit and fix the positioning fixture 16 and the rotating seat 7 for installation. The quick-insertion anti-fool positioning can achieve precise insertion and positioning of the positioning fixture 16 and the rotating seat 7, ensuring the consistency of the installation angle each time.

[0034] The base 1601 has concave grooves 1601-1 at its left and right ends respectively. The upper and lower ends of the grooves 1601-1 form two stepped positions with the outer side wall of the base 1601, namely the upper limit step B and the lower limit step C. The upper limit step B is supported on the top surface of the limiting hole 1501, and the lower limit step C is supported on the bottom surface of the limiting hole 1501. The grooves 1601-1 have concave slots 1601-2 in the vertical direction. The first clamping plate 1502 and the second clamping plate 1503 each have protruding clamping parts A that are inserted into the slots 1601-2. The grooves 1601-1 in this embodiment are rectangular structures. The setting of the first clamping plate 1502, the second clamping plate 1503, and the upper limit step B and the lower limit step C can further ensure that the positioning fixture 16 will not detach from the mounting base 15 when rotating and transporting, thus ensuring the accuracy of stator delivery.

[0035] The first rotary drive component 10 includes a mounting plate 1005, a first cylinder 1001, a first rack 1002, and a first drive rod 1003. The mounting plate 1005 is slidably mounted to the slide block 8 via a slide bracket 1006. The first cylinder 1001 is fixed to the mounting plate 1005. The drive shaft of the first cylinder 1001 is driven and mounted to the first rack 1002. The first rack 1002 is arranged laterally and is slidably mounted to the mounting plate 1005. The top of the first drive rod 1003 passes through the slide block 8 and is fixedly mounted to the mounting seat 15 of the stator conveyor table 14. The bottom of the first drive rod 1003 is equipped with a first gear 1004 that meshes with the first rack 1002. The first cylinder 1001 drives the first rack 1002 to move laterally, thereby rotating the first gear 1004, which in turn drives the first drive rod 1003 to rotate the mounting seat 15 around the axis of the first drive rod 1003.

[0036] The first lifting drive component 9 is cylinder driven. The first lifting drive component 9 is mounted on the slide block 8. The drive shaft of the first lifting drive component 9 is driven and mounted on the mounting plate 1005.

[0037] The first X-axis drive component 12 includes a second cylinder 1201 and several guide shafts 1202. In this embodiment, two guide shafts 1202 are provided. The second cylinder 1201 is fixed on the frame 1. The drive shaft of the second cylinder 1201 is driven and installed with the slide 8. The guide shafts 1202 are arranged along the transverse X-axis direction. One end of the guide shaft 1202 is fixedly installed with the frame 1, and the other end is inserted into the slide 8 and slides.

[0038] The second rotary drive component 11 includes a first motor 1101 and several second drive rods 1103. The second drive rods 1103 are coaxially mounted with the bottom of the rotary seat 17. A driven wheel 1104 is fixed below the second drive rod 1103. The first motor 1101 is equipped with a drive wheel 1102. The drive wheel 1102 and the driven wheel 1104 are driven by a gear belt 1105. The first motor 1101 drives all the second drive rods 1103 to rotate synchronously.

[0039] The positioning device 13 includes a connecting plate 1301 and several sets of positioning components 1302 with the same structure. Each set of positioning components 1302 corresponds to a single set of positioning fixtures 16. That is, in this embodiment, four sets of positioning components 1302 with the same structure are provided. Each positioning component 1302 includes a third cylinder 1302-1 and a gripper assembly 1302-2. The gripper assembly 1302-2 is installed on the drive shaft of the third cylinder 1302-1. The gripper assembly 1302-2 is used to grip the support column 1602 of the positioning fixture. During the loading and unloading of the stator, the gripper assembly 1302-2 is used to grip the support column 1602 to ensure that the handling robot 2 can grip the stator and accurately install and place it with the positioning fixture 16 or stably detach the stator from the positioning fixture 16 for unloading.

[0040] Workflow: A robotic arm clamps the stator to be wound onto the limiting platform 1602-1 of the positioning fixture 16. The first X-axis drive 12 drives the slide 8 towards the rotating seat until the limiting hole 1501 on the mounting base 15 near the winding mechanism 4 clamps and installs with the positioning fixture 16 on the rotating seat. Then, the first lifting drive 9 drives the mounting plate 1005 upwards, simultaneously lifting the mounting base 15 upwards, disengaging the positioning fixture 16 from the rotating seat. The first cylinder 1001 drives the first rack 1002 to slide laterally, rotating the mounting base 15 180 degrees. The first X-axis drive 12 moves another positioning fixture 16 above the rotating seat. The first lifting drive 9 moves the mounting plate 1005 downwards, inserting the corresponding pins 1603 on the positioning fixture 16 into the... Inside the insertion hole 1701, the first X-axis drive 12 drives the mounting base 15 to move backward and reset to move below the handling robot 2 to clamp and pick up or load the stator in the positioning fixture 16. The positioning fixture 16, which is mounted on the rotary seat, disengages from the limiting hole 1501 of the mounting base 15. After the winding mechanism 4 finishes winding the stator in the rotary seat at one angle, the first motor 1101 drives the second drive rod 1103 to rotate the positioning fixture 16 to another angle to perform winding operations. This cycle continues until the stator is wound. Then, the first X-axis drive 12 drives the slide 8 to move towards the rotary seat to clamp the completed positioning fixture 16 again and move it below the handling robot 2 for unloading. Another positioning fixture 16 is then inserted into the rotary seat for winding operations. This process is repeated.

[0041] Compared with existing technologies, the stator core multi-station winding equipment provided by this invention has a high degree of automation and a compact layout. It can simultaneously advance multiple sets of stators for winding operations, effectively improving stator winding production efficiency. The positioning device accurately clamps the single set of stator conveyor tables, and the rotating seat performs secondary positioning of individual stators, ensuring the positional accuracy control of the stators throughout the entire process of loading, unloading, conveying, and winding. This avoids problems such as winding misalignment and uneven wire spacing caused by positioning deviations. In addition, the positioning fixture and mounting base in this application adopt an elastic clamping installation structure, which allows for quick replacement of positioning fixtures of different specifications by simply inserting and removing the corresponding fixture. This can effectively meet the production needs of products with multiple specifications.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-station winding device for stator cores, characterized in that: The system includes a frame, on which are mounted a handling robot, a feeding mechanism, a winding mechanism, and a wire frame. The wire frame is mounted on the rear side of the frame. The handling robot is positioned above the feeding mechanism for handling stators. The winding mechanism is located behind the feeding mechanism and is slidably mounted to the frame. The wire frame is located behind the winding mechanism and is used for feeding wire. The feeding mechanism includes a support base, a slide, at least two sets of stator conveyor tables, a positioning device, a first rotary drive, a first X-axis drive, and a first lifting drive. The stator conveyor tables are located above the support base, which is mounted to the frame. The support base is a gantry structure. The slide is located inside the support base. Several sets of stator conveyor tables are equidistantly arranged laterally along the Y-axis above the support base. The conveyor table is slidably installed below the slide. The first rotary drive is installed below the slide and slidably connected to the slide. The first rotary drive passes through the slide and is driven to install on the stator conveyor table. The first lifting drive is fixed on the slide and drives the first lifting drive to move up and down. The first X-axis drive is installed on the rear side of the slide and fixed to the frame. The first X-axis drive drives the slide to move back and forth within the support. The positioning device clamps and positions the stator for loading and unloading on a single set of positioning conveyors at the front end of the stator conveyor table. A rotating seat is provided on the rear side of the single set of positioning conveyors for positioning and placing a single stator for winding operations. The rotating seat is movably installed on the frame and is located at the front end of the winding mechanism.

2. The stator core multi-station winding equipment according to claim 1, characterized in that: The stator conveying table includes a mounting base and two sets of identical positioning fixtures. The front and rear ends of the mounting base are respectively open and recessed limiting holes. The limiting holes penetrate the upper and lower end faces of the mounting base. The left and right ends of the limiting holes near the openings are respectively provided with a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate have the same structure. The first clamping plate and the second clamping plate are elastically installed with the mounting base. The positioning fixture is elastically clamped in the limiting holes.

3. The stator core multi-station winding equipment according to claim 2, characterized in that: The positioning fixture includes a cylindrical base and a support column. The support column is vertically fixed above the base. The top of the support column is a limiting platform for positioning and placing the stator. A plug is vertically installed below the base for insertion with the rotating seat.

4. The stator core multi-station winding equipment according to claim 3, characterized in that: The base has concave grooves at its left and right ends. The difference between the upper and lower ends of the grooves and the outer wall of the base forms two stepped locking positions, namely an upper limit step and a lower limit step. The upper limit step is supported on the top surface of the limiting hole, and the lower limit step is supported on the bottom surface of the limiting hole. The grooves have concave slots along the vertical direction. The first clamping plate and the second clamping plate both have protruding clamping parts that are inserted into the slots.

5. A stator core multi-station winding device according to claim 4, characterized in that: The first rotary drive component includes a mounting plate, a first cylinder, a first rack, and a first drive rod. The mounting plate is slidably mounted on a slide block via a slide frame. The first cylinder is fixed on the mounting plate. The drive shaft of the first cylinder is driven and mounted to the first rack. The first rack is arranged laterally and is slidably mounted to the mounting plate. The top of the first drive rod passes through the slide block and is fixedly mounted to the mounting base of the stator conveyor table. The bottom of the first drive rod is equipped with a first gear that meshes with the first rack.

6. The stator core multi-station winding equipment according to claim 5, characterized in that: The first lifting drive component is cylinder driven, the first lifting drive component is mounted on the slide, and the drive shaft of the first lifting drive component is driven to be mounted on the mounting plate.

7. A stator core multi-station winding device according to claim 6, characterized in that: The first X-axis drive component includes a second cylinder and several guide shafts. The second cylinder is fixed on the frame, and the drive shaft of the second cylinder is driven and installed with the slide. The guide shafts are arranged along the transverse X-axis direction. One end of the guide shaft is fixedly installed with the frame, and the other end is inserted into the slide and slides.

8. A stator core multi-station winding device according to claim 7, characterized in that: The rotating seat is driven to rotate along the Z-axis on the support seat by a second rotating drive component. The rotating seat is a cylindrical structure. The rotating seat has a hole on its top for insertion into the pin of the positioning fixture. The outer side of the pin protrudes outward with a limit strip. The hole has a corresponding anti-fool hole that inserts into the limit strip. The hole and the anti-fool hole are connected.

9. A stator core multi-station winding device according to claim 8, characterized in that: The second rotary drive component includes a first motor and several second drive rods. The second drive rods are coaxially mounted to the bottom of the rotary base. A driven wheel is fixed below the second drive rod. The first motor is equipped with a drive wheel. The drive wheel and the driven wheel are driven by a gear belt. The first motor drives all the second drive rods to rotate synchronously.

10. A multi-station stator core winding device according to claim 9, characterized in that: The positioning device includes a connecting plate and several sets of positioning components with the same structure. Each set of positioning components corresponds to a single set of positioning fixtures. Each positioning component includes a third cylinder and a gripper assembly. The gripper assembly is mounted on the drive shaft of the third cylinder and is used to grip the support column of the positioning fixture.

Images