Efficient stator dove-tail rib chord distance adjusting and detecting tool

Abstract

The utility model discloses a high-efficiency stator dove-tail rib chord distance adjustment detection tool, which belongs to the technical field of dove-tail rib chord distance detection and comprises a U-shaped chord distance detection plate used for detection after stator dove-tail rib chord distance adjustment; the detachable dovetail rib limiting blocks are detachably mounted at the two free ends of the U-shaped chord distance detection plate in a symmetrical position relation; a movable supporting vertical rod is connected between the two connecting frame rods in a sliding mode; the detection dial indicator is connected to the outer wall of one side of the movable supporting vertical rod through a chord distance measuring plate, and one side of the detection dial indicator is provided with a chord distance sample plate measuring head; dove-tail rib pieces are clamped in the two detachable dove-tail rib limiting blocks respectively, and the measuring end portion of the chord distance sample plate measuring head abuts against the outer wall of one of the dove-tail rib pieces which can be contacted with the measuring end portion of the chord distance sample plate measuring head. The device not only improves the accuracy of the measurement result, but also can be suitable for motor dove-tail ribs of various models.

Description

Technical Field

[0001] The utility model belongs to the technical field of chord distance detection of dovetail reinforcement pieces, in particular to an efficient stator dovetail reinforcement chord distance adjustment detection tool. Background Art

[0002] During motor manufacturing, adjusting the chord spacing of the dovetail ribs within the stator is a critical step in ensuring motor performance. Accurate chord spacing is crucial for motor efficiency, stability, and lifespan. However, existing tools for detecting and adjusting chord spacing often suffer from the following issues.

[0003] Many existing inspection tools are designed for specific motor models and lack the flexibility to adapt to the varying specifications of dovetail ribs. This means that multiple different specialized tools must be prepared on the production line, increasing costs and management complexity. Furthermore, encountering new or unusual dovetail rib dimensions often necessitates the redesign and manufacture of specialized tools, extending production cycles. Utility Model Content

[0004] The purpose of the utility model is to provide an efficient stator dovetail rib chord distance adjustment detection tool to solve the problems raised in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: an efficient stator dovetail rib chord distance adjustment and detection tool, comprising:

[0006] U-shaped chord distance detection plate, used for detection of stator dovetail reinforcement chord distance after adjustment;

[0007] The detachable dovetail reinforcement limit blocks are symmetrically positioned and detachably mounted on the two free ends of the U-shaped chord distance detection plate;

[0008] The connecting rods are symmetrically distributed up and down and installed between the two detachable dovetail reinforcement limit blocks, and a movable support pole is slidably connected between the two connecting rods;

[0009] A detection dial indicator is connected to the outer wall of one side of the movable support upright through a chord distance measuring plate, and a chord distance template measuring head is provided on one side of the detection dial indicator;

[0010] The two detachable dovetail reinforcement stoppers are each secured to a dovetail reinforcement member. The measuring end of the chord-length template measuring head abuts against the outer wall of one of the accessible dovetail reinforcement members. A hollowed-out viewing window is provided on one side of the U-shaped chord-length detection plate. The U-shaped chord-length detection plate is held in hand, causing the two detachable dovetail reinforcement stoppers to be secured to the two dovetail reinforcement members to be tested. This allows the chord-length template measuring head of the test dial indicator to measure and test the chord length of the dovetail reinforcement members. The sliding design of the movable support pole allows for adjustment and testing of different chord lengths.

[0011] Preferably, one of the detachable dovetail reinforcement limit blocks is provided with a closed dovetail reinforcement groove for one of the dovetail reinforcement pieces to be engaged, and the other detachable dovetail reinforcement limit block is provided with an open dovetail reinforcement groove for the other dovetail reinforcement piece to be engaged.

[0012] Preferably, the outer walls of the two free ends of the U-shaped chord distance detection plate are symmetrically threaded with connecting bolts, and the screw ends of the connecting bolts are threadedly connected to the detachable dovetail reinforcement limit block.

[0013] Preferably, the two detachable dovetail reinforcement limit blocks are symmetrically provided with mounting holes for plugging in two connecting rods on one side relative to each other, and the two mounting holes are located at the upper and lower sides of the dovetail reinforcement member.

[0014] Preferably, the top surfaces of the two detachable dovetail reinforcement limit blocks are each provided with a first internal threaded hole, and each of the first internal threaded holes is longitudinally penetrated to an adjacent installation socket.

[0015] Preferably, in this solution, when the connecting frame rod is inserted into the erection socket, the first locking bolt is screwed so that the first locking bolt locks the erection socket in the first internal threaded hole.

[0016] Preferably, the upper and lower ends of the movable support upright are integrally connected with U-shaped limit clamps, the two U-shaped limit clamps are clamped in the connecting frame rod with their backs to each other, and the U-shaped limit clamps move in a directional manner under the guidance of the connecting frame rod to adjust the position of the movable support upright.

[0017] Preferably, a second internal threaded hole is transversely opened on one side outer wall of each movable support upright, and the U-shaped limit clamps are connected and locked together with the outer wall of the connecting rod by a second locking bolt passing through the second internal threaded hole.

[0018] Preferably, handles are symmetrically fixedly connected to the outer wall of the U-shaped chord distance detection plate on both sides of the hollow visual window.

[0019] Compared with the prior art, the technical effects and advantages of this utility model are:

[0020] This efficient stator dovetail rib chord spacing adjustment and inspection tool features a U-shaped chord spacing inspection plate that provides a stable base, ensuring the tool's rigidity and stability during measurement, thereby improving the accuracy of the results. The chord spacing template measuring head directly contacts the dovetail rib and provides precise readings via a dial indicator, reducing human error. The removable dovetail rib stop block allows for replacement or adjustment based on different rib dimensions, making the tool suitable for a wide range of motor stator models. The sliding design of the movable support pole allows for height adjustment to accommodate varying chord spacing requirements, expanding the tool's range of applications.

[0021] The coordination of key components, including a U-shaped chord distance detection plate, a removable dovetail bar stopper, a mobile support rod, and a dial indicator, enables rapid and accurate measurement of the chord distance of the stator's internal dovetail bar components. The removable dovetail bar stopper and its corresponding closed and open dovetail bar slots, combined with the sliding mechanism of the mobile support rod, enable the tool to easily handle dovetail bar components of varying specifications without the need for frequent tool changes. The intuitive, hollowed-out viewing window and direct-contact chord distance template measuring head significantly reduce the operator's subjective judgment during the measurement process, improving data consistency and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the connecting rod of the utility model in a disassembled state;

[0025] Figure 3 This is a structural diagram of the installation jack of the utility model;

[0026] Figure 4 This is a schematic diagram of the installation structure of the mobile support pole of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the U-shaped limiting clamp of the utility model.

[0028] Description of reference numerals:

[0029] In the figure: 1. U-shaped string distance detection plate; 2. Removable dovetail reinforcement limit block; 3. Connecting bolt; 4. Dovetail reinforcement member; 5. Hollow viewing window; 6. Handle; 7. Connecting rod; 8. Detection dial indicator; 9. String distance template measuring head; 10. Closed dovetail reinforcement groove; 11. Open dovetail reinforcement groove; 12. First locking bolt; 13. Installation socket; 14. First internal threaded hole; 15. Movable support pole; 16. String distance measuring plate; 17. U-shaped limit clamp; 18. Second internal threaded hole; 19. Second locking bolt. DETAILED DESCRIPTION

[0030] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0031] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0032] This embodiment provides Figures 1 to 5 The invention discloses an efficient stator dovetail reinforcement chord distance adjustment and detection tool, comprising: a U-shaped chord distance detection plate 1, a detachable dovetail reinforcement limit block 2, a connecting rod 7, and a detection dial indicator 8.

[0033] In this embodiment, the U-shaped chord distance detection plate 1 is used for detecting the chord distance of the stator dovetail reinforcement after adjustment.

[0034] In this embodiment, detachable dovetail stoppers 2 are symmetrically mounted on the two free ends of the U-shaped chord-to-chord distance detection plate 1. These stoppers 2 cooperate with the dovetail ribs 4 on the stator to constrain and secure the position of the component under test, ensuring precise positioning during measurement. Their detachable design allows the tool to accommodate dovetail ribs 4 of varying sizes or types.

[0035] In this embodiment, the connecting frame rod 7 is symmetrically distributed above and below and installed between two detachable dove tail reinforcement limit blocks 2, and a movable support vertical rod 15 is slidably connected between the two connecting frame rods 7; the connecting frame rod 7 provides support and guidance for the movable support vertical rod 15, maintaining its stable movement in the vertical direction.

[0036] In this embodiment, the detection dial indicator 8 is connected to the outer wall of one side of the movable support upright 15 through the chord distance measuring plate 16, and a chord distance template measuring head 9 is provided on one side of the detection dial indicator 8; the chord distance template measuring head 9 directly contacts the dove tail reinforcement 4, and reflects the actual chord distance value through the detection dial indicator 8.

[0037] In this embodiment, two detachable dovetail reinforcement limit blocks 2 are respectively clamped with dovetail reinforcement pieces 4, and the measuring end of the chord distance template measuring head 9 abuts against the outer wall of one of the dovetail reinforcement pieces 4 that can be touched, and a hollow visual window 5 is provided on one side of the U-shaped chord distance detection plate 1. The hollow visual window 5 provides an observation point, so that the operator can directly see the status of the dovetail reinforcement piece 4 and the detection dial indicator 8 during the measurement process, which is convenient for real-time monitoring and adjustment. The handheld U-shaped chord distance detection plate 1 drives the two detachable dovetail reinforcement limit blocks 2 to be clamped on the two dovetail reinforcement pieces 4 to be tested, so that the chord distance template measuring head 9 of the detection dial indicator 8 measures and detects the chord distance of the dovetail reinforcement piece 4, and at the same time, the sliding design of the movable support vertical rod 15 satisfies the adjustment and detection use of different chord distances.

[0038] In this embodiment, a closed dovetail rib groove 10 is provided inside one of the detachable dovetail rib stop blocks 2 for engaging one of the dovetail rib members 4, and an open dovetail rib groove 11 is provided inside the other detachable dovetail rib stop block 2 for engaging the other dovetail rib member 4. The closed dovetail rib groove 10 and the open dovetail rib groove 11 are respectively designed in two different detachable dovetail rib stop blocks 2 to accommodate dovetail rib members 4 of different shapes or sizes, ensuring a good fit and fixing effect. At the same time, the closed dovetail rib groove 10 is used to engage and fix one of the dovetail rib members 4, while the open dovetail rib groove 11 is used to engage and fix the other dovetail rib member 4.

[0039] In this embodiment, connecting bolts 3 are symmetrically threaded through the outer walls of the two free ends of the U-shaped chord distance detection plate 1, and the screw ends of the connecting bolts 3 are threadedly connected to the detachable dove tail reinforcement limit block 2.

[0040] In this embodiment, two detachable dovetail reinforcement limit blocks 2 are symmetrically provided with mounting holes 13 for inserting two connecting rods 7 on opposite sides, and the two mounting holes 13 are located on the upper and lower sides of the dovetail reinforcement member 4.

[0041] In this embodiment, the top surfaces of the two detachable dovetail reinforcement limit blocks 2 are each provided with a first internal threaded hole 14 , and each first internal threaded hole 14 is longitudinally penetrated into the adjacent erection socket 13 .

[0042] In this embodiment, when the connecting rod 7 is inserted into the installation socket 13, the first locking bolt 12 is screwed so that the first locking bolt 12 is locked in the installation socket 13 in the first internal threaded hole 14. The first locking bolt 12 is used to lock the connecting rod 7 in place after it is inserted into the installation socket 13 to prevent it from loosening.

[0043] In this embodiment, U-shaped limit clamps 17 are integrally connected to the upper and lower ends of the mobile support upright 15. The two U-shaped limit clamps 17 are engaged in the connecting rod 7 in opposite directions. Guided by the connecting rod 7, the U-shaped limit clamps 17 move in a directional manner to adjust the position of the mobile support upright 15. The mobile support upright 15 can slide between the connecting rods 7 to support the test dial indicator 8 to meet different measurement requirements. The U-shaped limit clamps 17 are located at both ends of the mobile support upright 15 to ensure that it can move smoothly within the connecting rod 7 without falling out.

[0044] In this embodiment, a second internally threaded hole 18 is transversely defined on one side of the outer wall of each movable support post 15. A second locking bolt 19 passes through the second internally threaded hole 18 and is secured to the outer wall of the connecting rod 7. The second locking bolt 19, threaded into the second internally threaded hole 18, secures the U-shaped limiter 17 in place, preventing the movable support post 15 from moving accidentally.

[0045] In this embodiment, handles 6 are symmetrically fixedly connected to the outer wall of the U-shaped chord distance detection plate 1 on both sides of the hollow visual window 5 .

[0046] Working principle:

[0047] This efficient stator dovetail rib chord distance adjustment and detection tool secures the detachable dovetail rib limit blocks 2 to both ends of the U-shaped chord distance detection plate 1 via connecting bolts 3. Next, the connecting rod 7 is inserted into the mounting sockets 13 on the two detachable dovetail rib limit blocks 2 and locked using the first locking bolt 12 through the first internal threaded hole 14 to ensure the stability of the connecting rod 7. The two ends of the movable support rod 15 are respectively inserted into the connecting rod 7, and their directional movement is maintained by the U-shaped limit clamp 17. Then, a second locking bolt 19 is inserted through the second internal threaded hole 18 to lock the position of the movable support rod 15 for subsequent adjustment.

[0048] Fix the detection dial indicator 8 on the chord distance measuring plate 16, and the chord distance measuring plate 16 is fixed to one side of the movable support upright 15. Ensure that the chord distance template measuring head 9 can accurately contact the dovetail reinforcement member 4 to be measured. The operator holds the handles 6 on both sides of the U-shaped chord distance detection plate 1 and places the entire tool steadily on the motor stator, so that the two detachable dovetail reinforcement limit blocks 2 can be accurately snapped onto the two dovetail reinforcement members 4 to be measured. The closed dovetail reinforcement groove 10 in one detachable dovetail reinforcement limit block 2 cooperates with one dovetail reinforcement member 4, and the open dovetail reinforcement groove 11 in the other detachable dovetail reinforcement limit block 2 cooperates with the other dovetail reinforcement member 4.

[0049] According to actual needs, the support pole 15 can be moved up and down along the connecting rod 7 by loosening the second locking bolt 19 to adapt to the measurement requirements of different heights or string distances. After adjustment, the second locking bolt 19 can be tightened again.

[0050] Once the position of the movable support post 15 is determined, the chord-length template measuring head 9 will contact and press against one of the dovetail ribs 4. At this point, observe the situation in the hollow visual window 5 to confirm whether the chord-length template measuring head 9 is correctly positioned. Then, check the data displayed on the test dial indicator 8 and record the current chord-length value.

[0051] The obtained chord distance value is compared with the pre-set standard value to determine whether further adjustment is required for the dovetail reinforcement 4. If adjustment is required, the above process is repeated until the required accuracy is achieved.

[0052] Once all necessary measurements and adjustments have been completed, remove the tool from the motor stator to avoid disturbing the aligned components.

[0053] It should be noted that, in this article, relational terms such as one and two 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 terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0054] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient stator dovetail rib chord distance adjustment detection tool, characterized in that: include: A U-shaped chord distance detection plate (1) is used for detecting the chord distance of the stator dovetail reinforcement after adjustment; The detachable dovetail rib limit block (2) is detachably mounted on the two free ends of the U-shaped chord distance detection plate (1) in a symmetrical position relationship; The connecting rod (7) is symmetrically distributed and installed between the two detachable dovetail reinforcement limit blocks (2), and a movable support rod (15) is slidably connected between the two connecting rods (7); A detection dial gauge (8) is connected to the outer wall of one side of the movable support upright (15) through a chord distance measuring plate (16), and a chord distance sample measuring head (9) is provided on one side of the detection dial gauge (8); Wherein, two detachable dovetail rib limit blocks (2) are respectively clamped with dovetail rib members (4), the measuring end of the chord distance sample measuring head (9) abuts against the outer wall of one of the dovetail rib members (4) that can be contacted, and a hollow visual window (5) is provided on one side of the U-shaped chord distance detection plate (1).

2. The efficient stator dovetail rib chord distance adjustment detection tool according to claim 1, characterized in that: One of the detachable dovetail rib limiting blocks (2) has a closed dovetail rib groove (10) for one of the dovetail rib members (4) to be engaged therewith, and the other of the detachable dovetail rib limiting blocks (2) has an open dovetail rib groove (11) for the other dovetail rib member (4) to be engaged therewith.

3. The efficient stator dovetail rib chord distance adjustment and detection tool according to claim 2, characterized in that: The outer walls of the two free ends of the U-shaped chord distance detection plate (1) are symmetrically threaded with connecting bolts (3), and the screw ends of the connecting bolts (3) are threadedly connected to the detachable dovetail reinforcement limit block (2).

4. The efficient stator dovetail rib chord distance adjustment and detection tool according to claim 3, characterized in that: Two detachable dovetail reinforcement limit blocks (2) are symmetrically provided with mounting holes (13) for inserting two connecting rods (7) on opposite sides, and the two mounting holes (13) are located on the upper and lower sides of the dovetail reinforcement member (4).

5. The efficient stator dovetail rib chord distance adjustment and detection tool according to claim 4, characterized in that: The top surfaces of the two detachable dovetail reinforcement limit blocks (2) are each provided with a first internal threaded hole (14), and each of the first internal threaded holes (14) is longitudinally penetrated into the adjacent erection insertion hole (13).

6. The efficient stator dovetail rib chord distance adjustment and detection tool according to claim 5, characterized in that: When the connecting rod (7) is inserted into the erection socket (13), the first locking bolt (12) is screwed so that the first locking bolt (12) locks the erection socket (13) in the first internal threaded hole (14).

7. The efficient stator dovetail rib chord distance adjustment and detection tool according to claim 6, characterized in that: The upper and lower ends of the movable support upright pole (15) are integrally connected with U-shaped limit clamps (17), the two U-shaped limit clamps (17) are clamped in the connecting frame rod (7) in opposite directions, and the U-shaped limit clamps (17) are guided by the connecting frame rod (7) to move in a directional manner to adjust the position of the movable support upright pole (15).

8. The efficient stator dovetail rib chord distance adjustment and detection tool according to claim 7, characterized in that: A second internal threaded hole (18) is transversely opened on one side outer wall of each movable support upright (15), and the U-shaped limit clamp (17) is connected and locked together with the outer wall of the connecting frame rod (7) through a second locking bolt (19) passing through the second internal threaded hole (18).

9. The efficient stator dovetail rib chord distance adjustment and detection tool according to claim 8, characterized in that: Handles (6) are symmetrically fixedly connected to the outer wall of the U-shaped chord distance detection plate (1) on both sides of the hollow visual window (5).

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