Rotor iron core punching sheet stacking and positioning jig

Abstract

The utility model discloses a rotor core punching sheet stacking and positioning jig, which comprises a base and a replacement base, the replacement base is arranged above the base, a plug-in groove is slidably connected with a plug-in block in the height direction, an adjusting cavity is enclosed between the end parts of the plug-in block, the base is provided with a lifting groove right below the adjusting cavity, and the lifting groove is connected with the replacement base. A lifting block is arranged in the lifting groove, a threaded hole is formed in the bottom of the lifting block, a vertical rod is in threaded connection with the interior of the threaded hole, the vertical rod rotationally drives the lifting block to ascend and descend in the lifting groove and the adjusting cavity, a worm gear sleeve is arranged on the vertical rod, a worm matched with the worm gear sleeve is rotationally connected into the base, and the worm extends out of the base and is provided with a rotary knob. As the top of the vertical rod is engaged with the threaded hole in the bottom of the lifting block, under the action of the ball screw pair, the lifting block is controlled to ascend and descend in the placing hole, and then the number of the rotor iron core punching sheets is adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a core punching jig, especially a rotor core punching piece stacking positioning jig. BACKGROUND

[0002] After the rotor core punching piece is prepared by punching, usually a plurality of rotor core punching pieces are stacked together for detection and further processing, in the prior art, the applicant applied for a utility model patent with the authorization announcement number "CN211351993U" in 2019, which discloses a rotor core stacking positioning device, which realizes the rapid stacking of the core pieces and improves the stacking efficiency by stacking the punched core pieces in the core placing hole during the working process.

[0003] In the normal use process, since the thickness of the laminated core has different stacking thickness according to batches, the problems of too much or too little stacking are prone to occur, and therefore a structure is needed to reduce or avoid the occurrence of the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a rotor core punching piece stacking positioning jig which has the advantage of limiting the stacking thickness of the rotor core punching piece.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a rotor core punching piece stacking positioning jig, comprising a base and a replacement base, the replacement base is arranged above the base, a guide structure is arranged between the base and the replacement base, a placing hole is arranged at the center of the replacement base, the placing hole is arranged in the height direction of the replacement base, the replacement base is uniformly distributed with plug-in grooves on the circumferential side of the placing hole, the plug-in grooves extend along the height direction of the replacement base, the plug-in grooves are slidably connected with plug-in blocks in the height direction, an adjusting cavity is formed between the end portions of the plug-in blocks, a lifting groove is arranged below the adjusting cavity of the base, a lifting block is arranged in the lifting groove, a threaded hole is arranged in the bottom of the lifting block, a vertical rod is threadedly connected in the threaded hole, the vertical rod drives the lifting block to lift in the lifting groove and the adjusting cavity through rotation, a worm gear sleeve is arranged on the vertical rod, a worm is rotationally connected with the worm gear sleeve in the base, the worm extends outward from the base and is provided with a knob.

[0006] Preferably, the end of the plug-in groove is in the shape of a dovetail, and the front end of the plug-in groove is arranged penetratingly inward along the radial direction.

[0007] By adopting the above technical scheme, the plug-in block is prevented from separating from the plug-in groove, thereby playing a limiting role, and the plug-in block is allowed to enter the placing hole to fix the punching piece.

[0008] Preferably, a fine-tuning structure is provided between the plug block and the plug slot. The fine-tuning structure is located between the plug slot and the outer circumferential surface of the replacement base. The fine-tuning structure fixes and adjusts the verticality of the plug block.

[0009] By adopting the above technical solution, the fine-tuning structure can adjust the verticality of the plug block in the height direction.

[0010] Preferably, the fine-tuning structure includes abutment bolts and stepped holes disposed on the outer circumferential surface of the replacement base. Each set of stepped holes corresponds one-to-one with the insertion slot around the outer circumferential surface of the replacement base. Two stepped holes are disposed in each set in the height direction of the replacement base. One end of the stepped hole extends into the insertion slot, and the other end of the stepped hole extends radially outward. The abutment bolt is threadedly connected to the stepped hole, and the end of the abutment bolt abuts against the end of the insertion block.

[0011] By adopting the above technical solution, the stepped hole serves to allow the abutment bolt to be screwed in and to prevent the top of the abutment bolt from protruding. The two abutment bolts set in the height direction serve to adjust the verticality in the height direction.

[0012] Preferably, the outer circumferential surface of the lifting block extends radially inward to form a limiting groove, the limiting groove extends along the height direction of the lifting block, a limiting block that cooperates with the limiting groove is provided in the lifting groove, the limiting block extends along the height direction of the replacement base, and the limiting groove is evenly distributed around the outer circumferential surface of the lifting block.

[0013] By adopting the above technical solution, the limiting groove and the limiting block cooperate to restrict the rotation of the lifting block, and finally form a ball screw pair between the vertical rod and the lifting block to achieve the purpose of lifting the lifting block.

[0014] Preferably, the bottom of the lifting groove is provided with a vertical rotation hole for the vertical rod to pass through, and the vertical rotation hole is concentrically provided with an upper mounting hole at the bottom of the lifting groove, and the vertical rotation hole is concentrically provided with a lower mounting hole at the bottom of the replacement base.

[0015] By adopting the above technical solution, the specific structure of the vertical rotation hole is disclosed. At the same time, the upper and lower mounting holes allow the bearing to be installed from the outside, thereby improving the rotation accuracy and effect of the vertical rod.

[0016] Preferably, the diameter of the upper mounting hole is larger than the diameter of the worm gear sleeve, and bearings are provided in the upper and lower mounting holes. The inner rings of the bearings are connected to the outer walls of the upper and lower mounting holes, respectively, and the inner rings of the bearings are connected to the vertical rod.

[0017] By adopting the above technical solution, the vertical rod with the worm gear sleeve can be installed downwards from the height direction of the upper mounting hole.

[0018] Preferably, the replacement base is provided with a horizontal rotation hole for mounting the worm gear. The horizontal rotation hole extends through the replacement base in a horizontal direction. Side mounting holes are provided at both ends of the horizontal rotation hole in the length direction. Bearings are installed in the side mounting holes. The vertical rotation hole and the horizontal rotation hole are staggered.

[0019] By adopting the above technical solution, a horizontal rotating hole is used for the worm to pass through, and at the same time, both ends of the worm in the length direction are connected to the bearing in the side mounting holes, thereby improving the rotation effect of the worm.

[0020] Preferably, the side of the replacement base has a mark above the knob, and the knob has a scale corresponding to the mark.

[0021] By adopting the above technical solution, the operator can determine the distance between the top of the lifting block and the top of the placement hole, thereby controlling the number of iron core blanks placed into the placement hole.

[0022] In summary, during use, rotating the knob at the bottom controls the rotation of the worm gear. The worm gear meshes with the worm wheel sleeve, controlling the vertical rod to rotate horizontally. Since the top of the vertical rod meshes with the threaded hole at the bottom of the lifting block, the lifting block is controlled to rise and fall within the placement hole under the action of the ball screw pair, thereby adjusting the number of rotor core laminations inserted. At the same time, when the rotor core laminations at the bottom of the placement hole cannot be removed, rotating the knob raises the lifting block to be flush with the upper surface of the replacement base, facilitating the removal of the rotor core laminations. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment;

[0024] Figure 2 This is a top view of an embodiment;

[0025] Figure 3 This is a cross-sectional view of an embodiment;

[0026] Figure 4 This is a cross-sectional view of the embodiment at the insertion slot position;

[0027] In the diagram, 1. Base; 11. Guide structure; 12. Bearing; 2. Replacement base; 21. Placement hole; 22. Insertion slot; 23. Insertion block; 24. Adjustment cavity; 25. Stepped hole; 26. Abutment bolt; 3. Lifting groove; 31. Limiting block; 32. Limiting groove; 33. Lifting block; 34. Threaded hole; 35. Vertical rotation hole; 36. Upper mounting hole; 37. Lower mounting hole; 38. Vertical rod; 41. Worm gear sleeve; 42. Worm; 43. Horizontal rotation hole; 44. Side mounting hole; 45. Knob; 46. Marker. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0030] Example:

[0031] like Figures 1 to 3 As shown, a rotor core lamination stacking and positioning fixture includes a base 1 and a replacement base 2. The base 1 is placed on a workbench, and the replacement base 2 is positioned on the base 1 by a guide structure 11. The guide structure 11 is disposed between the base 1 and the replacement base 2. The specific structure of the guide structure 11 is a guide rod and a guide hole. Two guide rods are symmetrically arranged on the base 1, and the height of the guide rods is greater than the thickness of the replacement base 2. The guide holes are symmetrically arranged at corresponding positions on the replacement base 2.

[0032] like Figures 1 to 4 As shown, the center of the replacement base 2 is provided with a placement hole 21 for inserting the rotor core lamination. The placement hole 21 extends through the height direction of the replacement base 2. The replacement base 2 has evenly distributed insertion slots 22 on the circumferential side of the placement hole 21. The insertion slots 22 extend along the height direction of the replacement base 2 and extend through it. Insertion blocks 23 are slidably connected to the insertion slots 22 in the height direction. The outer contour of the adjacent insertion blocks 23 matches the inner wall of the placement hole 21 to form a structure that matches the shape of the lamination.

[0033] like Figure 1 , Figure 2 and Figure 4 As shown, the outward end of the insertion slot 22 is dovetail-shaped, while the front end of the insertion slot 22 extends radially inward to allow the insertion block 23 to enter the insertion slot 22. A fine-tuning structure is provided between the insertion block 23 and the insertion slot 22. The fine-tuning structure is located between the insertion slot 22 and the outer circumferential surface of the replacement base 2. The fine-tuning structure fixes and adjusts the verticality of the inner end of the insertion block 23 in the height direction; that is, the fine-tuning structure includes abutment bolts 26 and stepped holes 25 provided on the outer circumferential surface of the replacement base 2. Each set of stepped holes 25... 5. The outer circumferential surface of the replacement base 2 corresponds one-to-one with the insertion slot 22. Each set of stepped holes 25 is provided with two in the height direction of the replacement base 2. One end of the stepped hole 25 passes through into the insertion slot 22, and the other end of the stepped hole 25 passes through radially outward. The abutment bolt 26 is threadedly connected to the stepped hole 25. The end of the abutment bolt 26 abuts against the end of the insertion block 23. After the abutment bolt 26 is screwed in, it abuts against the bottom of the insertion block 23, fixing and adjusting the degree of protrusion of the end of the insertion block 23 in the height direction.

[0034] like Figure 2 and Figure 3 As shown, the ends of the plug-in blocks 23 form an adjustment cavity 24. The base 1 is provided with a lifting groove 3 directly below the adjustment cavity 24. The lifting groove 3 has a circular cross-section. A lifting block 33 is provided inside the lifting groove 3. A threaded hole 34 is provided at the bottom of the lifting block 33. A vertical rod 38 is threaded into the threaded hole 34. The vertical rod 38 rotates to drive the lifting block 33 to rise and fall within the lifting groove 3 and the adjustment cavity 24. A worm gear sleeve 41 is provided on the vertical rod 38. A worm 42 that mates with the worm gear sleeve 41 is rotatably connected inside the base 1. The worm 42 extends outward from the base 1 and is provided with a knob 45. A mark 46 is provided on the side of the replacement base 2 above the knob 45. The knob 45 is provided with a scale corresponding to the mark 46.

[0035] like Figure 2 As shown, in order to form a ball screw pair between the vertical rod 38 and the lifting block 33, it is necessary to restrict the rotation of the lifting block 33. The outer circumferential surface of the lifting block 33 extends radially inward to form a limiting groove 32. The limiting groove 32 extends along the height direction of the lifting block 33. A limiting block 31 that cooperates with the limiting groove 32 is provided in the lifting groove 3. The limiting block 31 extends along the height direction of the replacement base 2. Four limiting grooves 32 are evenly distributed around the outer circumferential surface of the lifting block 33.

[0036] like Figure 3 As shown, to facilitate the installation of the vertical rod 38 and the worm gear 42, a vertical rotation hole 35 is provided through the bottom of the lifting groove 3 for the vertical rod 38 to pass through. The vertical rotation hole 35 has an upper mounting hole 36 concentrically provided at the bottom of the lifting groove 3, and a lower mounting hole 37 concentrically provided at the bottom of the replacement base 2. The diameter of the upper mounting hole 36 is larger than the diameter of the worm gear sleeve 41, so that the worm gear sleeve 41 can enter the vertical rotation hole 35 from the upper mounting hole 36. Then, in the height direction, the bearing 12 is locked into the upper mounting hole 36 and the lower mounting hole 37 respectively, that is, the inner ring of the bearing 12 is connected to the outer wall of the upper mounting hole 36 and the lower mounting hole 37 respectively, and the inner ring of the bearing 12 is connected to the vertical rod 38.

[0037] like Figure 3 As shown, in order to improve the rotation effect of the worm 42, a horizontal rotation hole 43 for the worm 42 is provided in the replacement base 2. The horizontal rotation hole 43 is provided through the replacement base 2 in the horizontal direction. Side mounting holes 44 are provided at both ends of the horizontal rotation hole 43 in the length direction. Bearings 12 are provided in the side mounting holes 44. The vertical rotation hole 35 is staggered with the horizontal rotation hole 43.

[0038] Working principle:

[0039] During use, the knob 45 on the rotating base 1 is rotated, which causes the internal worm gear 42 to rotate. The middle part of the worm gear 42 meshes with the worm wheel sleeve 41 and rotates, causing the vertical rod 38 to rotate in the horizontal direction. The top of the vertical rod 38 engages with the threaded hole 34 at the bottom of the lifting block 33. When the lifting block 33 cannot rotate, the lifting block 33 can be raised or lowered in the height direction by rotating the knob 45 in both directions, increasing or decreasing the depth of the adjustment cavity 24.

Claims

1. A rotor core lamination stacking and positioning fixture, comprising a base (1) and a replacement base (2), wherein the replacement base (2) is disposed above the base (1), characterized in that: A guide structure (11) is provided between the base (1) and the replacement base (2). A placement hole (21) is provided at the center of the replacement base (2), extending through the height of the replacement base (2). Insertion grooves (22) are evenly distributed on the circumferential side of the placement hole (21) of the replacement base (2). The insertion grooves (22) extend along the height of the replacement base (2). Insertion blocks (23) are slidably connected to the insertion grooves (22) in the height direction. An adjustment cavity (24) is formed between the ends of the insertion blocks (23). The base (1) is positioned within the adjustment cavity (…). A lifting groove (3) is provided directly below 24), and a lifting block (33) is provided in the lifting groove (3). A threaded hole (34) is provided in the bottom of the lifting block (33), and a vertical rod (38) is threadedly connected in the threaded hole (34). The vertical rod (38) rotates to drive the lifting block (33) to rise and fall in the lifting groove (3) and the adjusting cavity (24). A worm gear sleeve (41) is provided on the vertical rod (38), and a worm (42) that cooperates with the worm gear sleeve (41) is rotatably connected in the base (1). The worm (42) extends outward from the base (1) and is provided with a knob (45).

2. The rotor core lamination stacking and positioning fixture according to claim 1, characterized in that: The end of the insertion groove (22) is dovetail shaped, and the front end of the insertion groove (22) is radially inwardly penetrating.

3. The rotor core lamination stacking and positioning fixture according to claim 2, characterized in that: A fine-tuning structure is provided between the plug-in block (23) and the plug-in slot (22). The fine-tuning structure is located between the plug-in slot (22) and the outer circumferential surface of the replacement base (2). The fine-tuning structure fixes and adjusts the verticality of the plug-in block (23).

4. The rotor core lamination stacking and positioning fixture according to claim 3, characterized in that: The fine-tuning structure includes abutting bolts (26) and stepped holes (25) set on the outer circumferential surface of the replacement base (2). Each set of stepped holes (25) surrounds the outer circumferential surface of the replacement base (2) and corresponds one-to-one with the insertion slot (22). Each set of stepped holes (25) has two in the height direction of the replacement base (2). One end of the stepped hole (25) penetrates into the insertion slot (22), and the other end of the stepped hole (25) penetrates radially outward. The abutting bolts (26) are threadedly connected to the stepped holes (25), and the end of the abutting bolts (26) abuts against the end of the insertion block (23).

5. The rotor core lamination stacking and positioning fixture according to claim 1, characterized in that: The outer circumferential surface of the lifting block (33) extends radially inward to form a limiting groove (32). The limiting groove (32) extends along the height direction of the lifting block (33). A limiting block (31) that cooperates with the limiting groove (32) is provided in the lifting groove (3). The limiting block (31) extends along the height direction of the replacement base (2). The limiting groove (32) is evenly distributed around the outer circumferential surface of the lifting block (33).

6. The rotor core lamination stacking and positioning fixture according to claim 5, characterized in that: The bottom of the lifting groove (3) is provided with a vertical rotation hole (35) through which the vertical rod (38) passes. The vertical rotation hole (35) is provided with an upper mounting hole (36) concentrically at the bottom of the lifting groove (3), and the vertical rotation hole (35) is provided with a lower mounting hole (37) concentrically at the bottom of the replacement base (2).

7. The rotor core lamination stacking and positioning fixture according to claim 6, characterized in that: The diameter of the upper mounting hole (36) is larger than the diameter of the worm gear sleeve (41). Bearings (12) are installed in the upper mounting hole (36) and the lower mounting hole (37). The inner ring of the bearing (12) is connected to the outer wall of the upper mounting hole (36) and the lower mounting hole (37) respectively. The inner ring of the bearing (12) is connected to the vertical rod (38).

8. The rotor core lamination stacking and positioning fixture according to claim 7, characterized in that: The replacement base (2) is provided with a horizontal rotation hole (43) for the worm gear (42) to be installed. The horizontal rotation hole (43) is provided through the replacement base (2) in the horizontal direction. Side mounting holes (44) are provided at both ends of the horizontal rotation hole (43) in the length direction. Bearings (12) are provided in the side mounting holes (44). The vertical rotation hole (35) and the horizontal rotation hole (43) are staggered.

9. The rotor core lamination stacking and positioning fixture according to claim 1, characterized in that: The side of the replacement base (2) is provided with a mark (46) above the knob (45), and the knob (45) is provided with a scale corresponding to the mark (46).

Images