clasp mold

Abstract

The application relates to the technical field of motor machining production, and a clamping sheet mold comprises a placing seat, a connecting ring and an abutting wheel. The placing seat comprises a base and a connecting column, the connecting column is connected to the base, the outer periphery of the connecting column is used for sleeving a stator punching sheet, the connecting ring is coaxially and slidingly connected to the outer periphery of the connecting column, the abutting wheel is rotationally connected to the connecting ring, the abutting wheel is used for abutting the clamping sheet, the abutting wheel is provided with a plurality of abutting wheels, and the plurality of abutting wheels are uniformly distributed in the circumferential direction of the connecting ring. The stator punching sheet is sequentially sleeved on the connecting column, so that the clamping sheet grooves in the outer peripheries of the plurality of stator punching sheets are aligned, the connecting ring is moved upwards to drive the abutting wheel to move upwards, the abutting wheel abuts the clamping sheet, the clamping sheet is embedded into the clamping sheet groove in the outer periphery of the stator punching sheet, the assembly of the stator punching sheet and the clamping sheet is realized, equipment operation is facilitated, and the machining effect and the production efficiency of the clamping sheet are improved.

Description

Technical Field

[0001] This application relates to the technical field of motor processing and manufacturing, and in particular to a fastener mold. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. An electric motor mainly consists of a stator and a rotor.

[0003] When producing motors, a number of stator laminations are first stacked together. Then, the interlocking laminations are placed into the interlocking slots on the outer ring of the stator. The cross-section of the interlocking laminations is ridge-shaped. At this point, workers use hammers to flatten the ridges of the interlocking laminations in the stator interlocking slots, extending the interlocking laminations to both sides of the slots and securing the stator laminations. However, due to the slow pace of technological improvement in the motor industry, the manual hammering of stator interlocking laminations results in low production efficiency, high labor intensity for workers, looser stators, and inconsistent product quality. Utility Model Content

[0004] To facilitate equipment operation and improve the processing effect and production efficiency of fasteners, this application provides a fastener mold.

[0005] The fastener mold provided in this application adopts the following technical solution: A stator lamination mold includes a placement seat, a connecting ring, and abutting wheels. The placement seat includes a base and a connecting post. The connecting post is connected to the base and its outer periphery is used for stator lamination to be fitted. The connecting ring is slidably connected to the outer periphery of the connecting post. The abutting wheel is rotatably connected to the connecting ring and is used to abut against the stator lamination. Several abutting wheels are provided and are evenly distributed around the connecting ring.

[0006] By adopting the above technical solution, stator laminations are sequentially fitted onto the connecting post, aligning the snap-fit ​​grooves on the outer periphery of multiple stator laminations. The connecting ring moves upward, causing the abutment wheel to move upward, and the abutment wheel abuts against the snap-fit, so that the snap-fit ​​is embedded in the snap-fit ​​groove on the outer periphery of the stator lamination, realizing the assembly of stator laminations and snap-fit, facilitating equipment operation, and improving the processing effect and production efficiency of snap-fit.

[0007] Preferably, the placement seat further includes a positioning strip, and the outer wall of the connecting column is provided with an installation groove for the positioning strip to be embedded in, and the positioning strip is used to be embedded in the winding groove of the stator lamination.

[0008] By adopting the above technical solution, an installation groove is set on the outer wall of the connecting column for the positioning strip to be embedded. The positioning strip is embedded in the winding groove of the stator lamination, which facilitates the alignment of the fastening grooves of multiple stator laminations, improves the assembly efficiency of the stator laminations, and improves the processing effect and production efficiency of the fastening.

[0009] Preferably, the base has several grooves on the side near the connecting column, the number of grooves being the same as the number of abutment wheels and corresponding one-to-one, and the grooves being used for inserting the fasteners.

[0010] By adopting the above technical solution, the groove provides a place for the fastener to be inserted, which improves the stability of the connection between the fastener and the placement seat, reduces the possibility of the fastener shifting when the subsequent abutment wheel pushes the fastener into the fastener groove, and improves the processing effect and production efficiency of the fastener.

[0011] Preferably, it further includes an abutment seat and a fastening block. The abutment seat is connected to the end of the connecting post away from the base. The number of fastening blocks is the same as the number of abutment wheels and corresponds one-to-one. One end of the fastening block is rotatably connected to the abutment seat. The rotation axis of the fastening block is parallel to the rotation axis of the abutment wheel. The other end of the fastening block is used to abut the fastening piece.

[0012] By adopting the above technical solution, the abutment seat is connected to the connecting column. When the fastening block is rotated, the fastening block abuts against the end of the fastening piece away from the base, causing the fastening piece to bend and fit against the stator lamination, thus completing the processing of the fastening piece and the stator lamination, improving the processing effect and production efficiency of the fastening piece.

[0013] Preferably, the outer wall of the abutment seat is provided with a rotating groove, the number of rotating grooves is the same as the number of fastening blocks and they correspond one-to-one, and one end of the fastening block is rotatably embedded in the rotating groove.

[0014] By adopting the above technical solution, the rotating groove allows one end of the fastening block to rotate and embed, ensuring that the fastening block rotates smoothly and is positioned accurately, thereby improving the processing effect and production efficiency of the fastening piece.

[0015] Preferably, the abutment seat has a first groove at one end near the base. The first groove is used for the end of the connecting column away from the base to be inserted. The groove wall of the first groove fits against the side wall of the connecting column. The groove wall of the first groove has a first positioning groove, which is used for the positioning strip to be inserted.

[0016] By adopting the above technical solution, the connecting column is embedded in the first groove and the positioning strip is embedded in the first positioning groove, so as to achieve relative fixation of the abutment seat and the placement seat in the horizontal and circumferential directions, which makes it easier to make the fastening block and the fastening piece aligned and improves the convenience of using the equipment.

[0017] Preferably, the device further includes connecting blocks and fixing bolts, the number of which is the same as the number of abutment wheels and corresponds one-to-one. The connecting blocks are slidably connected to the connecting ring, and the sliding direction of the connecting blocks is perpendicular to the axial direction of the connecting column. The fixing bolts are connected between the connecting blocks and the connecting ring to achieve a fixed connection between the connecting blocks and the connecting ring. The abutment wheels are rotatably connected to the end of the connecting blocks near the connecting column, and the rotation axis of the abutment wheels is perpendicular to the sliding direction of the connecting blocks.

[0018] By adopting the above technical solution, the connecting block is slidably connected to the connecting ring, and the abutting wheel is connected to the side of the connecting block near the connecting post. The distance between the abutting wheel and the connecting post can be adjusted as needed to make the abutting wheel press tightly against the fastener, thereby improving the applicability of the device.

[0019] Preferably, the connecting ring is provided with a first fixing hole, the connecting block is provided with a connecting groove, the connecting groove extends along the sliding direction of the connecting block, and the fixing bolt passes through the connecting groove and is threaded into the first fixing hole.

[0020] By adopting the above technical solution, the fixing bolts can be loosened, the connecting block can be slid, so that the abutting wheel abuts against the fastener, and the fixing bolts can be tightened to achieve a fixed connection between the connecting block and the connecting ring, thereby realizing stepless adjustment of the distance between the abutting wheel and the connecting column and improving the applicability of the device.

[0021] Preferably, the connecting ring is provided with a groove, the connecting block is slidably embedded in the groove, and the side wall of the connecting block is in contact with the groove wall.

[0022] By adopting the above technical solution, the connecting block is slidably embedded in the groove, and the groove guides the sliding of the connecting block, reducing the possibility of the connecting block moving along the direction perpendicular to the sliding direction of the connecting block, making it easier to make the connecting groove aligned with the first fixing hole, and improving the convenience of using the device.

[0023] Preferably, it further includes abutment blocks and adjusting bolts, the number of abutment blocks and adjusting bolts being the same as the number of connecting blocks and corresponding one-to-one, the abutment blocks being slidably connected to the connecting blocks, the sliding direction of the abutment blocks being parallel to the sliding direction of the connecting blocks, the abutment blocks being used to abut against the outer wall of the connecting ring, the adjusting bolts being rotatably connected to the end of the connecting block away from the connecting column, the abutment blocks being provided with adjusting holes, and the adjusting bolts being threadedly connected to the adjusting holes.

[0024] By adopting the above technical solution, after the fixing bolts achieve a fixed connection between the connecting block and the connecting ring, rotating the adjusting bolts causes the abutment block to slide against the outer wall of the connecting ring, thereby improving the stability of the connection between the connecting block and the connecting ring, enhancing the reliability of the device, and improving production efficiency and product quality.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Stator laminations are sequentially fitted onto connecting posts, aligning the snap-fit ​​grooves on the outer periphery of multiple stator laminations. The connecting ring moves upward, causing the abutment wheel to move upward. The abutment wheel abuts against the snap-fit, embedding the snap-fit ​​into the snap-fit ​​groove on the outer periphery of the stator lamination, thus assembling the stator laminations and snap-fit, facilitating equipment operation, and improving the processing effect and production efficiency of the snap-fit. 2. The abutment seat is connected to the connecting column. When the fastening block is rotated, the fastening block abuts against the end of the fastening piece away from the base, causing the fastening piece to bend and fit against the stator stamping, thus completing the processing of the fastening piece and the stator stamping, improving the processing effect and production efficiency of the fastening piece; 3. The connecting block is slidably connected to the connecting ring, and the abutting wheel is connected to the side of the connecting block near the connecting post. The distance between the abutting wheel and the connecting post can be adjusted as needed to make the abutting wheel press tightly against the fastener, thereby improving the applicability of the device. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the fastener mold.

[0027] Figure 2 This is a cross-sectional view of the snap fastener mold.

[0028] Figure 3 This is a cross-sectional view of the snap fastener mold from another perspective.

[0029] Figure 4 This is a partial sectional view of the fastener mold, mainly showing the abutting wheel, connecting block, fixing bolt, abutting block, and adjusting bolt.

[0030] Figure 5 This is a partial sectional view of the fastener mold, mainly showing the fastening block.

[0031] Explanation of reference numerals in the attached figures: 1. Placement seat; 11. Base; 111. Base plate; 1111. Second connecting hole; 1112. Second receiving groove; 112. Support plate; 1121. Second recess; 1122. Second positioning groove; 1123. Connecting groove; 1124. Groove; 1125. Fixing block; 11251. Second guide hole; 12. Connecting post; 121. Second fixing hole; 122. Mounting groove; 123. First chamfer; 124. First rounded corner; 13. Positioning strip; 131. Second chamfer; 2. Connecting ring; 21. Slide groove; 22. First fixing hole; 23. Clearance groove; 24. First guide hole; 3. Abutment wheels; 4. Connecting block; 41. Connecting groove; 42. First receiving groove; 5. Fixing bolts; 6. Abutment block; 61. Adjustment hole 7. Adjusting bolts; 8. Abutment seat; 81. Top plate; 811. Third connecting hole; 812. Third receiving groove; 813. Third guide hole; 82. Rotating seat; 821. First groove; 822. First positioning groove; 823. Third fixing hole; 824. Rotating groove; 9. Interlocking block; 91. Second rounded corner. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 1 This application discloses a stator lamination mold including a placement base 1. The placement base 1 includes a base 11 and a connecting post 12. The base 11 includes a bottom plate 111 and a support plate 112. The support plate 112 is coaxially fixedly connected to one side of the bottom plate 111. The surface of the support plate 112 away from the bottom plate 111 is used for placing stator laminations. The support plate 112 is coaxially provided with a second groove 1121. One end of the connecting post 12 is coaxially fixedly connected to the surface of the bottom plate 111 near the support plate 112. The cross-section of the connecting post 12 along its axis is annular. The outer wall of the connecting post 12 fits against the groove wall of the second groove 1121. The outer periphery of the connecting post 12 is used for stator laminations to be fitted.

[0034] Reference Figure 2 The connecting post 12 has a plurality of second fixing holes 121 at one end near the base plate 111, and the plurality of second fixing holes 121 are evenly distributed circumferentially around the axis of the connecting post 12. In this embodiment, there are four second fixing holes 121. The base plate 111 has second connecting holes 1111, which penetrate the base plate 111 along the axis of the connecting post 12. The number of second connecting holes 1111 is the same as the number of second fixing holes 121 and they correspond one-to-one. The second connecting holes 1111 are used for bolts to pass through and be threaded into the second fixing holes 121. A second receiving groove 1112 is provided on the hole wall of the second connecting hole 1111 at the end away from the connecting post 12. The second receiving groove 1112 is used for the head of the bolt to be inserted.

[0035] Reference Figure 1 and Figure 3 The outer wall of the connecting column 12 is provided with a mounting groove 122, which extends through the connecting column 12 along its axis. The placement seat 1 also includes a positioning strip 13, which is embedded in the mounting groove 122. The sidewall of the positioning strip 13 is in contact with the groove wall of the mounting groove 122. Both ends of the positioning strip 13 along its length are flush with both ends of the connecting column 12 along its axis. The positioning strip 13 is used to embed into the winding groove of the stator lamination. A second chamfer 131 is provided on both sides of the positioning strip 13 away from the bottom of the mounting groove 122, circumferentially around the axis of the connecting column 12. A second positioning groove 1122 is provided on the wall of the second insertion groove 1121, for the positioning strip 13 to be embedded into.

[0036] Reference Figure 1 and Figure 4A fastener mold further includes a connecting ring 2. A plurality of connecting grooves 1123 are provided on the outer wall of a support plate 112. The connecting grooves 1123 penetrate the support plate 112 along the axis of the connecting post 12, and are evenly distributed circumferentially around the axis of the connecting post 12. In this embodiment, there are eight connecting grooves 1123. A groove 1124 is provided on the side surface of the support plate 112 away from the base plate 111. The number of grooves 1124 is the same as the number of connecting grooves 1123 and corresponds one-to-one. One end of the groove 1124 away from the axis of the connecting post 12 penetrates the support plate 112, and the groove 1124 communicates with the connecting grooves 1123. The groove 1124 is used for fastener insertion. The connecting ring 2 is coaxially slidably connected to the outer periphery of the connecting post 12. A plurality of fixing blocks 1125 are fixedly connected to the outer wall of the support plate 112, and are evenly distributed circumferentially around the axis of the support plate 112. In this embodiment, two fixing blocks 1125 are provided, and the two fixing blocks 1125 are symmetrically distributed along the axis perpendicular to the support plate 112. Four clearance grooves 23 are provided on the inner wall of the connecting ring 2 for the fixing blocks 1125 to be embedded in. The four clearance grooves 23 are evenly distributed circumferentially around the axis of the connecting ring 2. The connecting ring 2 is provided with a plurality of first guide holes 24, which penetrate the connecting ring 2 along the sliding direction of the connecting ring 2. The number of first guide holes 24 is the same as the number of clearance grooves 23 and they correspond one-to-one.

[0037] A fastener mold further includes an abutting wheel 3, a connecting block 4, a fixing bolt 5, an abutting block 6, and an adjusting bolt 7. A groove 21 is provided on the side surface of the connecting ring 2 away from the base plate 111. The groove 21 penetrates the connecting ring 2 radially. The number of grooves 21, abutting wheels 3, connecting blocks 4, fixing bolts 5, abutting blocks 6, and adjusting bolts 7 is the same as the number of grooves 1124 and corresponds one-to-one. The connecting block 4 is slidably embedded in the groove 21, with its sidewall fitting against the groove wall. A first fixing hole 22 is provided at the bottom of the groove 21. The connecting block 4 has a connecting groove 41 extending along the sliding direction of the slider. The fixing bolt 5 passes through the connecting groove 41 and is threadedly connected to the first fixing hole 22. The head of the fixing bolt 5 abuts against the side surface of the connecting block 4 away from the bottom of the groove 21. A first receiving groove 42 is provided at one end of the connecting block 4 near the connecting post 12. The first receiving groove 42 extends through the connecting hole along the sliding direction of the connecting ring 2. The abutting wheel 3 is rotatably embedded in the first receiving groove 42, and the outer wall of the abutting wheel 3 extends out of the first receiving groove 42. The abutting wheel 3 is used to abut against the fastener. An abutting block 6 is slidably connected to the end of the connecting block 4 away from the first receiving groove 42. The sliding direction of the abutting block 6 is parallel to the sliding direction of the connecting block 4. The end of the abutting block 6 away from the base plate 111 is flush with the side surface of the connecting ring 2 away from the base plate 111. The side surface of the abutting block 6 near the connecting block 4 is an arc surface, which is used to abut against the outer wall of the connecting ring 2. An adjusting bolt 7 is rotatably connected to the end of the connecting block 4 away from the first receiving groove 42. The abutting block 6 is provided with an adjusting hole 61, and the adjusting bolt 7 is threadedly connected to the adjusting hole 61.

[0038] Reference Figure 1 and Figure 3 A fastener mold further includes an abutment seat 8, which includes a top plate 81 and a rotating seat 82. One end of the rotating seat 82 is coaxially fixed to the surface of the top plate 81 near the bottom plate 111, and the other end of the rotating seat 82 is used to abut against the stator lamination. The rotating seat 82 is coaxially provided with a first groove 821, which is used for the end of the connecting post 12 away from the bottom plate 111 to be inserted. The groove wall of the first groove 821 fits against the outer wall of the connecting post 12. The outer periphery of the end of the connecting post 12 away from the bottom plate 111 is provided with a first chamfer 123, and the end of the first chamfer 123 away from the bottom plate 111 is provided with a first rounded corner 124. The first rounded corner 124 and the first chamfer 123 are used to abut against the groove wall of the first groove 821. A first positioning groove 822 is provided at the groove wall of the first groove 821, which is used for the positioning strip 13 to be inserted.

[0039] Reference Figure 2The rotating seat 82 has several third fixing holes 823 at one end near the top plate 81, and these holes are evenly distributed circumferentially around the axis of the rotating seat 82. In this embodiment, there are eight third fixing holes 823. The top plate 81 has third connecting holes 811 that penetrate the top plate 81 along the axis of the rotating seat 82. The number of third connecting holes 811 is the same as the number of third fixing holes 823 and they correspond one-to-one. The third connecting holes 811 are used for bolts to pass through and be threaded into the third fixing holes 823. A third receiving groove 812 is provided on the hole wall at the end of the third connecting hole 811 away from the rotating seat 82. The third receiving groove 812 is used for the head of the bolt to be inserted. The fixing block 1125 has a second guide hole 11251, and the top plate 81 has a third guide hole 813. The number of third guide holes 813 is the same as the number of second guide holes 11251 and they correspond one-to-one.

[0040] Reference Figure 1 and Figure 5 A fastener mold also includes a fastening block 9. A rotating groove 824 is provided on the outer wall of a rotating base 82, extending along the axis of rotation of the rotating base 82. The number of rotating grooves 824 and fastening blocks 9 is the same as the number of abutting wheels 3 and corresponds one-to-one. One end of the fastening block 9 away from the base plate 111 is rotatably embedded in the rotating groove 824. The rotation axis of the fastening block 9 is parallel to the rotation axis of the abutting wheel 3. The other end of the fastening block 9 is used to abut the end of the fastener away from the support plate 112. The fastening block 9 has a second rounded corner 91 for moving away from the top plate 81. The second rounded corner 91 is located on the side of the fastening block 9 away from the bottom of the rotating groove 824, and the connection between the second rounded corner 91 and the surface of the fastening block 9 near the bottom of the rotating groove 824 is a rounded transition.

[0041] The implementation principle of a snap-fit ​​mold in this application embodiment is as follows: the connecting post 12 is fixedly connected to the base plate 111, the positioning strip 13 is embedded in the mounting groove 122, the support plate 112 is sleeved on the outer periphery of the connecting post 12, the positioning strip 13 is embedded in the second positioning groove 1122, and the stator stamping is sequentially sleeved on the outer periphery of the connecting post 12, so that the positioning strip 13 is embedded in the winding groove of the stator stamping, and the snap-fit ​​groove on the outer periphery of the stator stamping is aligned with the groove 1124.

[0042] After the stator laminations are placed, one end of the fastener is bent and embedded into the groove 1124. The fastening block 9 is rotated so that the end of the fastening block 9 away from the top plate 81 extends out of the rotating groove 824. The end of the connecting post 12 away from the bottom plate 111 is aligned with the first recess 821 so that the connecting post 12 is embedded in the first recess 821. The positioning strip 13 is embedded in the first positioning groove 822. The end of the rotating seat 82 away from the top plate 81 abuts against the stator laminations.

[0043] Loosen the fixing bolt 5, slide the connecting block 4 so that the abutting wheel 3 presses against the fastening piece, causing the fastening piece to embed into the fastening piece groove. Tighten the fixing bolt 5 to achieve a fixed connection between the connecting block 4 and the connecting ring 2. Rotate the adjusting bolt 7 to drive the abutting block 6 to slide against the outer wall of the connecting ring 2. The connecting ring 2 slides, and the abutting wheel 3 abuts against the fastening piece, causing the fastening piece to embed into the fastening piece groove of the stator lamination. Rotate the fastening block 9, and the fastening block 9 abuts against the fastening piece, causing the fastening piece to rotate and fit against the stator lamination.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A snap-on mold, characterized in that: The device includes a placement seat (1), a connecting ring (2), and an abutting wheel (3); the placement seat (1) includes a base (11) and a connecting post (12); the connecting post (12) is connected to the base (11); the outer periphery of the connecting post (12) is used for stator lamination; the connecting ring (2) is coaxially and slidably connected to the outer periphery of the connecting post (12); the abutting wheel (3) is rotatably connected to the connecting ring (2); the abutting wheel (3) is used to abut against the fastener; there are several abutting wheels (3); several abutting wheels (3) are evenly distributed around the connecting ring (2).

2. The fastener mold according to claim 1, characterized in that: The placement seat (1) also includes a positioning strip (13); the outer wall of the connecting column (12) is provided with an installation groove (122); the installation groove (122) is used for the positioning strip (13) to be embedded; the positioning strip (13) is used to be embedded in the winding groove of the stator lamination.

3. The fastener mold according to claim 2, characterized in that: The base (11) has several grooves (1124) on the side near the connecting post (12); the number of grooves (1124) is the same as the number of abutment wheels (3) and they correspond one-to-one; the grooves (1124) are used for the insertion of fasteners.

4. The snap-on mold according to claim 3, characterized in that: It also includes an abutment seat (8) and a fastening block (9); the abutment seat (8) is connected to the end of the connecting post (12) away from the base (11); the number of fastening blocks (9) is the same as the number of abutment wheels (3) and they correspond one-to-one; one end of the fastening block (9) is rotatably connected to the abutment seat (8); the rotation axis of the fastening block (9) is parallel to the rotation axis of the abutment wheel (3); the other end of the fastening block (9) is used to abut the fastening piece.

5. The snap-on mold according to claim 4, characterized in that: The outer wall of the abutment seat (8) is provided with a rotating groove (824); the number of rotating grooves (824) is the same as the number of fastening blocks (9) and they correspond one-to-one; one end of the fastening block (9) is rotatably embedded in the rotating groove (824).

6. The snap-on mold according to claim 4, characterized in that: The abutment (8) is provided with a first groove (821) at one end near the base (11); the first groove (821) is used for the end of the connecting column (12) away from the base (11) to be inserted; the groove wall of the first groove (821) is in contact with the side wall of the connecting column (12); the groove wall of the first groove (821) is provided with a first positioning groove (822); the first positioning groove (822) is used for the positioning strip (13) to be inserted.

7. The snap-on mold according to claim 1, characterized in that: It also includes a connecting block (4) and a fixing bolt (5); the number of the connecting blocks (4) and the fixing bolt (5) are the same as the number of the abutting wheels (3) and correspond one-to-one; the connecting block (4) is slidably connected to the connecting ring (2); the sliding direction of the connecting block (4) is perpendicular to the axial direction of the connecting column (12); the fixing bolt (5) is connected between the connecting block (4) and the connecting ring (2) to achieve a fixed connection between the connecting block (4) and the connecting ring (2); the abutting wheel (3) is rotatably connected to one end of the connecting block (4) near the connecting column (12); the rotation axis of the abutting wheel (3) is perpendicular to the sliding direction of the connecting block (4).

8. The snap-on mold according to claim 7, characterized in that: The connecting ring (2) is provided with a first fixing hole (22); the connecting block (4) is provided with a connecting groove (41); the connecting groove (41) extends along the sliding direction of the connecting block (4); the fixing bolt (5) passes through the connecting groove (41) and is threaded into the first fixing hole (22).

9. The fastener mold according to claim 8, characterized in that: The connecting ring (2) is provided with a groove (21); the connecting block (4) is slidably embedded in the groove (21); the side wall of the connecting block (4) is in contact with the groove wall of the groove (21).

10. The snap-on mold according to claim 7, characterized in that: It also includes abutment blocks (6) and adjusting bolts (7); the number of abutment blocks (6) and adjusting bolts (7) is the same as the number of connecting blocks (4) and they correspond one-to-one; the abutment blocks (6) are slidably connected to the connecting blocks (4); the sliding direction of the abutment blocks (6) is parallel to the sliding direction of the connecting blocks (4); the abutment blocks (6) are used to abut against the outer wall of the connecting ring (2); the adjusting bolts (7) are rotatably connected to the end of the connecting block (4) away from the connecting column (12); the abutment blocks (6) are provided with adjusting holes (61); the adjusting bolts (7) are threadedly connected to the adjusting holes (61).

Images