Frequency converter support positioning jig

Abstract

The utility model discloses a frequency converter support positioning jig, and relates to the technical field of frequency converter support positioning, the frequency converter support positioning jig comprises a shell, the front side and the rear side of the shell are fixedly connected with a supporting plate and a second supporting plate respectively, the inner side of the shell is slidably connected with a first sliding table and a second sliding table, when the jig is used, a first hand-cranking wheel is rotated to drive a first bidirectional lead screw to rotate, and a second hand-cranking wheel is rotated to drive a second bidirectional lead screw to rotate; the first two-way lead screw drives the first sliding table and the second sliding table to move through threads on the outer side of the first two-way lead screw, so that the distance between the first sliding table and the second sliding table is changed, the support is fixed in the middle, and when the whole structure of the support is not convenient to extrude and fix from the two sides, the bolt is screwed upwards, and the pressing plate can be lifted away from the positioning plate along the guide column. The first sliding table and the second sliding table are moved by rotating the first hand-cranking wheel, so that the support is located between the first sliding table and the pressing plate, then the pressing plate is put down, the bolt is tightened downwards, the pressing plate is prevented from being lifted, the support is fixed between the pressing plate and the first sliding table, and the problem that a traditional jig is single in positioning mode is solved.

Description

Technical Field

[0001] This utility model relates to a positioning fixture for a frequency converter bracket, and to the field of frequency converter bracket positioning technology, specifically to a positioning fixture for a frequency converter bracket. Background Technology

[0002] A frequency converter is a power control device mainly used to change the frequency and voltage of the AC motor power supply, thereby realizing the speed regulation of the motor. The main function of the frequency converter bracket is to ensure the stability and safety of the frequency converter during installation and use.

[0003] Because there is no unified, widely accepted standard style for inverter brackets, different fixtures are required for positioning during the production and installation of different bracket styles, which increases production costs. Utility Model Content

[0004] This utility model provides a positioning fixture for a frequency converter bracket. One purpose is to provide two positioning methods: pressing and clamping, to solve the problem of the single positioning method of traditional fixtures. Another purpose is to solve the problem of unstable positioning of zigzag or other irregular brackets, so as to improve the applicability of the fixture.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A frequency converter bracket positioning fixture includes a housing, and a fixing module and a lifting module are fixedly connected inside the housing.

[0007] A further improvement of the present invention is that: a support plate and a second support plate are fixedly connected to the front and rear sides of the housing, a first slide and a second slide are slidably connected to the inner side of the housing, an adjustment module is fixedly connected to the inner side of both the first slide and the second slide, a positioning plate is slidably connected to the bottom of both the first slide and the second slide, and the front and rear sides of the positioning plate are fixedly connected to the support plate and the second support plate, respectively.

[0008] A further improvement of this utility model is that: a bidirectional lead screw is rotatably connected between the second support plate and the support plate; both the first and second slides have threaded holes on the right side of the positioning plate; the outer wall of the bidirectional lead screw has two sections of threads with different directions of rotation, which are threadedly connected to the first and second slides respectively; both the first and second slides have slide rails slidably connected to the left side of the positioning plate, and the slide rails are fixedly connected to the housing; a hand crank is rotatably connected to the rear of the second support plate, and the hand crank is fixedly connected to the bidirectional lead screw.

[0009] A further improvement of this utility model is that: a pad is slidably connected inside the positioning plate, and a connecting rod 1 and a connecting rod 2 are rotatably connected below the pad. The connecting rod 1 is located in front of the connecting rod 2. The other ends of the connecting rod 1 and the connecting rod 2 are respectively rotatably connected to a sliding nut 1 and a sliding nut 2. A two-way lead screw 2 is rotatably connected between the support plate and the support plate 2. A hand crank 2 is rotatably connected to the rear of the support plate 2. The hand crank 2 is fixedly connected to the two-way lead screw 2. The outer surface of the two-way lead screw 2 is provided with two sections of threads with different directions of rotation and are respectively threadedly connected to the sliding nut 1 and the sliding nut 2.

[0010] A further improvement of the present invention is that: a knob is rotatably connected to the rear of the support plate 2; a ratchet is fixedly connected to the front side of the support plate 2 via a two-way lead screw 2; a pawl is fixedly connected to the left side of the ratchet via the knob; a spring is fixedly connected above the pawl; a limit block is fixedly connected to the other end of the spring; a fixed seat is rotatably connected to the front side of the ratchet via the two-way lead screw 2; and both the limit block and the fixed seat are fixedly connected to the support plate 2.

[0011] A further improvement of the present invention is that: three guide sleeves are fixedly connected inside the slide table and bolts are threaded between two guide sleeves; guide posts are slidably connected inside each guide sleeve; pressure plates are fixedly connected to the bottom of each of the three guide posts; the pressure plates are slidably connected to the slide table; and the bottom of the bolts is rotatably connected to the pressure plates.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0013] 1. This utility model provides a positioning fixture for a frequency converter bracket. When using the fixture, rotating the hand crank first drives the double-sided lead screw first to rotate. The double-sided lead screw first moves the slide table first and slide table second through its outer thread, thereby changing the distance between slide table first and slide table second and fixing the bracket in the center. When the overall structure of the bracket is not convenient to be pressed and fixed from both sides, the bolt is turned upward to lift the pressure plate away from the positioning plate along the guide post. Then, rotating the hand crank first moves slide table first and slide table second so that the bracket is positioned between slide table first and pressure plate. Then, the pressure plate is lowered and the bolt is tightened downward to prevent the pressure plate from rising and fix the bracket between the pressure plate and slide table first, solving the problem of the single positioning method of traditional fixtures.

[0014] 2. This utility model provides a positioning fixture for a frequency converter bracket. When a zigzag bracket needs to be positioned, the second hand crank drives the second bidirectional lead screw to rotate, causing the first and second sliding nuts to gradually approach each other. Then, the first and second connecting rods push the pad block to rise and place it under the suspended end of the bracket, improving the stability of the bracket and solving the problem of unstable positioning of zigzag or other irregular brackets. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of the inverter bracket positioning fixture of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the fixing module of this utility model;

[0017] Figure 3 This is a schematic diagram of the lifting module of this utility model;

[0018] Figure 4 This is a schematic diagram of the lifting module of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the adjustment module of this utility model.

[0020] In the diagram: 1. Housing; 2. Fixed module; 3. Lifting module; 4. Adjustment module; 21. Support plate; 22. Slide table one; 23. Positioning plate; 24. Slide table two; 25. Double-acting lead screw one; 26. Support plate two; 27. Hand crank one; 28. Slide rail; 31. Pad; 32. Connecting rod one; 33. Sliding nut one; 34. Double-acting lead screw two; 35. Connecting rod two; 36. Sliding nut two; 37. Hand crank two; 38. Fixed seat; 39. Ratchet; 310. Claw; 311. Spring; 312. Limiting block; 313. Knob; 41. Guide sleeve; 42. Bolt; 43. Guide post; 44. Pressure plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0022] like Figure 1 As shown, this utility model provides a positioning fixture for a frequency converter bracket, including a housing 1. A fixing module 2 and a lifting module 3 are fixedly connected inside the housing 1. When facing different brackets, the fixing module 2 fixes the bracket in the center, while the lifting module 3 supports the suspended part of the irregular bracket.

[0023] like Figure 2As shown, this utility model provides a technical solution: Support plates 21 and 26 are fixedly connected to the front and rear sides of the housing 1, respectively. A slide table 22 and 24 are slidably connected to the inner side of the housing 1. Adjustment modules 4 are fixedly connected to the inner sides of both slide tables 22 and 24. Positioning plates 23 are slidably connected below both slide tables 22 and 24. The front and rear sides of the positioning plates 23 are fixedly connected to the support plates 21 and 26, respectively. A bidirectional lead screw 25 is rotatably connected between the support plates 26 and 21. Both slide tables 22 and 24 have threaded holes on the right side of the positioning plate 23. The outer wall of slide 25 has two threads with different directions of rotation, which are threaded to slide 22 and slide 24 respectively. Slide 22 and slide 24 are slidably connected to slide rails 28 on the left side of positioning plate 23. Slide rails 28 are fixedly connected to housing 1. A hand crank 27 is rotatably connected to the rear of support plate 26. The hand crank 27 is fixedly connected to double-acting screw 25. When using the fixture, the double-acting screw 25 is rotated by rotating the hand crank 27. The double-acting screw 25 moves slide 22 and slide 24 through the threads on its outer side, thereby changing the distance between slide 22 and slide 24 and fixing the bracket in the center.

[0024] like Figure 3 As shown, this utility model provides a technical solution: a pad 31 is slidably connected inside the positioning plate 23; a connecting rod 32 and a connecting rod 35 are rotatably connected below the pad 31; the connecting rod 32 is located in front of the connecting rod 35; the other ends of the connecting rod 32 and the connecting rod 35 are respectively rotatably connected to a sliding nut 33 and a sliding nut 36; a two-way lead screw 34 is rotatably connected between the support plate 21 and the support plate 26; a hand crank 37 is rotatably connected behind the support plate 26. Wheel 2 37 is fixedly connected to double-acting screw 2 34. The outer surface of double-acting screw 2 34 has two threads with different directions of rotation, which are respectively threaded to sliding nut 1 33 and sliding nut 2 36. When the zigzag bracket needs to be positioned, the double-acting screw 2 34 is rotated by hand crank wheel 2 37, so that sliding nut 1 33 and sliding nut 2 36 gradually approach each other. Then, the pad block 31 is pushed up by connecting rod 1 32 and connecting rod 2 35, and placed under the suspended end of the bracket to improve the stability of the bracket.

[0025] like Figure 4As shown, this utility model provides a technical solution: a knob 313 is rotatably connected to the rear of the support plate 26; a ratchet 39 is fixedly connected to the front side of the support plate 26 via a two-way lead screw 34; a pawl 310 is fixedly connected to the left side of the ratchet 39 via the knob 313; a spring 311 is fixedly connected above the pawl 310; a limit block 312 is fixedly connected to the other end of the spring 311; a fixed seat 38 is rotatably connected to the front side of the ratchet 39 via the two-way lead screw 34; both the limit block 312 and the fixed seat 38 are fixedly connected to the support plate 26; when the two-way lead screw 34 rotates, it will drive the ratchet 39 to rotate; when the two-way lead screw 34 drives the sliding nut 36 and the sliding nut 33 to move away from each other, the pawl 310 will lock the ratchet 39, preventing the pad 31 from being pushed by external force and falling after the two-way lead screw 34 reverses, thereby improving the rigidity of the pad 31.

[0026] like Figure 5 As shown, this utility model provides a technical solution: three guide sleeves 41 are fixedly connected inside the slide table 22, and bolts 42 are threadedly connected between two guide sleeves 41. Guide posts 43 are slidably connected inside each guide sleeve 41. Pressure plates 44 are fixedly connected to the bottom of each of the three guide posts 43. The pressure plates 44 are slidably connected to the slide table 22, and the bottom of the bolts 42 are rotatably connected to the pressure plates 44. When the overall structure of the bracket is not convenient to be squeezed and fixed from both sides, the bolts 42 can be rotated upward to lift the pressure plates 44 away from the positioning plate 23 along the guide posts 43.

[0027] The working principle of this inverter bracket positioning fixture will be explained in detail below.

[0028] like Figure 1-5 As shown,

[0029] When using the fixture, rotating the hand crank 27 drives the double-acting screw 25 to rotate. The double-acting screw 25, through its outer thread, moves the slides 22 and 24, thereby changing the distance between them and centering the bracket. When the overall structure of the bracket is not convenient for pressing and fixing from both sides, turning the bolt 42 upwards will lift the pressure plate 44 away from the positioning plate 23 along the guide post 43. Then, rotating the hand crank 27 moves the slides 22 and 24, positioning the bracket between the slides 22 and the pressure plate 44. The pressure plate 44 is then lowered, and the bolt 42 is tightened downwards to prevent the pressure plate 44 from rising, fixing the bracket between the pressure plate 44 and the slide 22. When a zigzag bracket is needed for positioning, rotating the double-acting screw 34 via the hand crank 37 causes the sliding nut to... As the sliding nut 33 and sliding nut 36 gradually approach each other, the connecting rod 32 and connecting rod 35 push the pad 31 to rise, placing it under the suspended end of the bracket to improve the stability of the bracket. When the double-acting screw 34 rotates, it drives the ratchet 39 to rotate. When the double-acting screw 34 drives the sliding nut 36 and sliding nut 33 to move away from each other, the pawl 310 will lock the ratchet 39 to prevent the pad 31 from falling after being pushed by external force. This improves the rigidity of the pad 31. When the double-acting screw 34 lifts the pad 31, it continuously moves the pawl 310. The spring 311 above the pawl 310 continuously resets the pawl 310, causing it to lock into the ratchet 39. When it is necessary to lower the pad 31, the knob 313 is turned to move the pawl 310 away from the ratchet 39, which reverses the double-acting screw 34 and causes the pad 31 to fall.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A frequency converter support positioning jig comprising a housing (1), characterized in that: The inside of the shell (1) is fixedly connected with a fixed module (2) and a lifting module (3); The front and rear sides of the shell (1) are fixedly connected with a support plate (21) and a support plate two (26), the inner sides of the shell (1) are slidably connected with a sliding table one (22) and a sliding table two (24), the inner sides of the sliding table one (22) and the sliding table two (24) are fixedly connected with an adjusting module (4), the lower sides of the sliding table one (22) and the sliding table two (24) are slidably connected with a positioning plate (23), and the front and rear sides of the positioning plate (23) are fixedly connected with the support plate (21) and the support plate two (26). The inside of the positioning plate (23) is slidably connected with a pad (31), the lower side of the pad (31) is rotatably connected with a connecting rod one (32) and a connecting rod two (35), the connecting rod one (32) is located on the front side of the connecting rod two (35), the other ends of the connecting rod one (32) and the connecting rod two (35) are rotatably connected with a sliding nut one (33) and a sliding nut two (36) respectively, the support plate (21) and the support plate two (26) are rotatably connected with a bidirectional screw rod two (34), the rear side of the support plate two (26) is rotatably connected with a hand wheel two (37), the hand wheel two (37) is fixedly connected with the bidirectional screw rod two (34), and the outer surface of the bidirectional screw rod two (34) is provided with two threads with different rotation directions and is threadedly connected with the sliding nut one (33) and the sliding nut two (36) respectively.

2. The inverter support positioning jig according to claim 1, characterized by: The support plate two (26) and the support plate (21) are rotatably connected with a bidirectional screw rod one (25), the sliding table one (22) and the sliding table two (24) are provided with threaded holes on the right side of the positioning plate (23), the outer wall of the bidirectional screw rod one (25) is provided with two threads with different rotation directions and is threadedly connected with the sliding table one (22) and the sliding table two (24) respectively, the sliding table one (22) and the sliding table two (24) are slidably connected with a sliding rail (28) on the left side of the positioning plate (23), the sliding rail (28) is fixedly connected with the shell (1), and the rear side of the support plate two (26) is rotatably connected with a hand wheel one (27).

3. The inverter support positioning jig according to claim 2, characterized by: The rear side of the support plate two (26) is rotatably connected with a knob (313), the bidirectional screw rod two (34) is fixedly connected with a ratchet wheel (39) on the front side of the support plate two (26), the knob (313) is fixedly connected with a pawl (310) on the left side of the ratchet wheel (39), the pawl (310) is fixedly connected with a spring (311) above, the other end of the spring (311) is fixedly connected with a limiting block (312), the bidirectional screw rod two (34) is rotatably connected with a fixing seat (38) on the front side of the ratchet wheel (39), and the limiting block (312) and the fixing seat (38) are fixedly connected with the support plate two (26).

4. The inverter support positioning jig according to claim 3, characterized by: The inside of the sliding table one (22) is fixedly connected with three guide sleeves (41), and between two guide sleeves (41) is threadedly connected with a bolt (42), the inside of the guide sleeve (41) is slidably connected with a guide column (43), the bottom of the three guide columns (43) is fixedly connected with a pressing plate (44), the pressing plate (44) is slidably connected with the sliding table one (22), and the bottom of the bolt (42) is rotatably connected with the pressing plate (44).

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