Closing tool for assembling electromagnetic valve
By designing a solenoid valve closing tooling that includes a beveled fitting wedge and clamping part, the problems of deformation, iron chip generation and insufficient pull-off force during the solenoid valve closing process are solved, and a more efficient closing process and lower cost are achieved.
Patent Information
- Application Number
- CN202421177825.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing solenoid valve closing technology has problems such as deformation of the solenoid valve housing, excessive iron filing production, and insufficient pulling and detachment under the same pressure rivet force.
A solenoid valve assembly closure tooling including an upper rivet head and a tooling base is designed. The longitudinal driving force is converted into a transverse driving force through the beveled wedge and clamping part to provide a greater clamping force, and the self-recovery of the clamping part and the lifting assembly is achieved through the elastic member.
It effectively avoids deformation and tilt during closing, improves closing efficiency, and reduces overall cost.
Smart Images
Figure CN222607784U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of closing tools, in particular to a closing tool for assembling a solenoid valve. Background Art
[0002] The existing solenoid valve closing technology generally has problems such as deformation of the solenoid valve shell during the closing process, excessive iron filings, and insufficient pull-off force under the same pressure riveting force closing conditions. In view of the above problems, there are currently two conventional technical solutions. One is to use laser welding technology. Due to the focusing characteristics of the laser beam, the solenoid valve can be accurately heated in a smaller area, thereby reducing deformation after welding. The weld quality is high and it is suitable for special shapes and difficult-to-access parts. However, laser welding equipment is expensive and has strict working environment requirements. It also requires precise matching workpieces for positioning, and the overall cost is high. The other is to use interference press-fitting technology. The tooling required for interference press-fitting is simple in structure, good in centering, high in load-bearing capacity, and good in impact load resistance, but the machining accuracy of the mating surface of the workpiece is high, and assembly is inconvenient. With the increasingly fierce competition in the solenoid valve market, it is necessary to develop a solenoid valve closing tooling that reduces product costs and ensures closing quality. Summary of the invention
[0003] The utility model provides a closing tool for assembling a solenoid valve with low cost and guaranteed closing quality, which comprises an upper rivet head and a tool base, wherein the upper rivet head comprises a closing rivet head for performing closing on a piece to be closed, and the tool base comprises a clamping part, a wedge block, a positioning part and a lifting assembly, wherein the clamping part is used to clamp the piece to be closed along the circumferential direction and fix it on the positioning part, the wedge block is used to drive the clamping part to clamp the piece to be closed through inclined surface cooperation, and the lifting assembly is used to drive the wedge block to move longitudinally in the tool base.
[0004] Further, the clamping part includes two clamping heads which are symmetrically arranged on the left and right, and the clamping head includes a first inclined surface, a first contact surface, a second contact surface and a jaw portion. The first inclined surface is arranged on the side of the clamping head away from the piece to be closed, and the clamping head cooperates with the wedge block inclined surface through the first inclined surface. The first contact surface is arranged on the side of the clamping head facing the piece to be closed, and the clamping head is abutted against the positioning part through the first contact surface. The second contact surface is arranged above the clamping head, and the clamping head is abutted against the top plate of the tooling base through the second contact surface. The jaw portion is arranged on the side of the clamping head facing the piece to be closed, and the two clamping heads clamp the piece to be closed laterally from both sides through the symmetrically arranged jaw portions. The distance between the first inclined surface and the first contact surface is the largest at the top end of the clamping head and the smallest at the bottom end of the clamping head.
[0005] Furthermore, the clamping portion also includes a first elastic member, one end of the first elastic member is arranged on the first contact surface, the other end of the first elastic member is arranged on the positioning portion, and the first elastic member is used to reset the laterally clamped clamping head.
[0006] Furthermore, the wedge block includes a second inclined surface, which is arranged on a side of the wedge block close to the piece to be closed. The second inclined surface is used to abut against the first inclined surface. The second inclined surface that moves longitudinally drives the first inclined surface to move laterally through the inclined surface cooperation, so that the clamping head clamps the piece to be closed.
[0007] Furthermore, the lifting assembly includes a thrust shaft and a lifting plate, the thrust shaft and the lifting plate are arranged at the bottom of the tooling base, the upper end of the lifting plate is integrally connected with the wedge block, the lower end of the lifting plate is used to abut against the bottom plate of the tooling base, the thrust shaft is passed through the through hole of the bottom plate, the thrust shaft is integrally connected with the lifting plate, and the thrust shaft is used to drive the lifting plate and the wedge block to move longitudinally.
[0008] Furthermore, the lifting assembly also includes a first guide shaft and a second elastic member, the first guide shaft is arranged between the positioning portion and the base plate, one end of the first guide shaft is fixedly connected to the positioning portion, and the other end of the first guide shaft is fixedly connected to the base plate, the first guide shaft is passed through the lifting plate, and the lifting plate can move longitudinally along the first guide shaft, the second elastic member is sleeved on the first guide shaft, one end of the second elastic member is connected to the positioning portion, and the other end of the second elastic member is connected to the lifting plate, and the second elastic member is used to reset the lifting plate that moves longitudinally.
[0009] Furthermore, the positioning part includes a base body and a positioning shaft, the base body is located between the top plate of the tooling base and the bottom plate of the tooling base, the base body is respectively fixedly connected to the top plate of the tooling base, the bottom plate of the tooling base and the positioning shaft, the positioning shaft is arranged at the upper end of the base body, and the piece to be closed is sleeved on the positioning shaft.
[0010] Furthermore, the positioning portion further comprises a stop block, which is circumferentially protruding outside the positioning shaft, and is used to prevent the piece to be closed from rotating circumferentially on the positioning shaft.
[0011] Furthermore, the tooling base also includes a second guide shaft, which is arranged on the top plate of the tooling base, and the tooling base is longitudinally positioned relative to the upper rivet head through the second guide shaft.
[0012] Furthermore, the upper rivet head also includes a pre-pressed part and a third elastic part. The pre-pressed part is arranged at the bottom of the upper rivet head and in the closing rivet head. The pre-pressed part can move longitudinally in the upper rivet head. The pre-pressed part is used to abut against the part to be closed before the closing rivet head contacts the part to be closed. The third elastic part is arranged in the closing rivet head and connected to the pre-pressed part. The third elastic part is used to reset the pre-pressed part.
[0013] The closing tool for assembling the solenoid valve provided by the utility model converts the longitudinal driving force into the lateral driving force by forming a wedge block and a clamping part with matching inclined surfaces, and clamps the part to be closed left and right through two jaw parts, providing a greater clamping force than the traditional cylinder, and can also effectively avoid problems such as deformation and tilting during closing, and effectively improve the closing efficiency. The utility model provides precise positioning for the lifting assembly through the first guide shaft, ensuring the accuracy and smoothness of the lifting assembly when sliding in the tooling base, so that it is not easy to offset during closing. The utility model also uses the first elastic part, the second elastic part and the third elastic part to make the clamping part, the lifting assembly and the upper rivet head recover automatically after work, and the structure is reliable and the control logic is simple, with low overall cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a schematic diagram of a closing tool for assembling a solenoid valve.
[0015] Figure 2 It is a front view of the closing tool for assembling the solenoid valve in the utility model.
[0016] Figure 3 It is a side view of the closing tool for assembling the solenoid valve in the utility model.
[0017] Figure 4 It is a top view of the tooling base in the utility model.
[0018] Figure 5 It is a cross-sectional view of the tooling base in the utility model.
[0019] Figure 6 It is a cross-sectional view of the upper rivet head in the utility model. DETAILED DESCRIPTION
[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the present invention is described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0021] It should be noted that the terms "first", "second", "third", "fourth", etc. in the specification and claims of the utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
[0022] See also Figures 1 to 3The utility model provides a closing tool for assembling a solenoid valve, including an upper rivet head 2 and a tool base 1, which are arranged one above the other. The upper rivet head 2 can move longitudinally and is coaxially arranged with a piece to be closed 5 placed on the tool base 1, specifically, it moves in the direction of the tool base 1 or moves away from the tool base 1 during operation. The upper rivet head 2 in the utility model includes a closing rivet head 21 for closing the piece to be closed 5, and the tool base 1 includes a clamping portion 4, a wedge block 3, a positioning portion and a lifting assembly 6. The clamping portion 4, the wedge block 3 and the lifting assembly 6 can move in the tool base 1. The clamping portion 4 is used to clamp the piece to be closed 5 along the circumferential direction and fix it on the positioning portion. The wedge block 3 is used to drive the clamping portion 4 to clamp the piece to be closed 5 through the inclined surface cooperation, and the lifting assembly 6 is used to drive the wedge block 3 to move longitudinally in the tool base 1. Specifically, the clamping part 4 includes two clamping heads 41 symmetrically arranged on the left and right, and the clamping head 41 includes a first inclined surface 41a, a first contact surface 41b, a second contact surface 41c and a jaw portion 41d. The first inclined surface 41a is arranged on the side of the clamping head 41 away from the piece to be closed 5, and the clamping head 41 cooperates with the inclined surface of the wedge block 3 through the first inclined surface 41a. The first contact surface 41b is arranged on the side of the clamping head 41 facing the piece to be closed 5, and the clamping head 41 is abutted against the positioning part through the first contact surface 41b. The second contact surface 41c is arranged above the clamping head 41, and the clamping head 41 is abutted against the top plate 11 of the tooling base 1 through the second contact surface 41c. The jaw portion 41d is arranged on the side of the clamping head 41 facing the piece to be closed 5, and the two clamping heads 41 clamp the piece to be closed 5 laterally from both sides through the symmetrically arranged jaw portions 41d. The wedge block 3 includes a second inclined surface 3a, which is arranged on the side of the wedge block 3 close to the piece to be sealed 5. The second inclined surface 3a is used to abut against the first inclined surface 41a. The second inclined surface 3a moving longitudinally drives the first inclined surface 41a to move horizontally through the inclined surface cooperation, so that the clamping head 41 clamps the piece to be sealed 5. In this embodiment, the cross section of a single clamping part 4 is a horizontal "L" shape, the first inclined surface 41a and the first contact surface 41b are located on the vertical short side, and the jaw portion 41d and the second contact surface 41c are located on the horizontal long side, that is, the ends of the long sides of the two clamping parts 4 are respectively provided with semicircular jaw portions 41d, and the two can clamp the piece to be sealed 5 located between them along the horizontal opposite force under the longitudinal drive of the wedge block 3. The distance between the first inclined surface 41a and the first contact surface 41b is the largest at the top of the clamping head 41 and the smallest at the bottom of the clamping head 41, that is, the wedge formed by the first inclined surface 41a and the first contact surface 41b is large at the top and small at the bottom, and the wedge of the corresponding wedge block 3 and the second inclined surface 3a is small at the top and large at the bottom. The utility model converts the longitudinal driving force into the lateral driving force by forming the wedge block 3 and the clamping part 4 with inclined surfaces, and clamps the part to be closed 5 left and right through the two jaw parts 41d, providing a greater clamping force than the traditional cylinder, and can also effectively avoid the deformation or tilting of the solenoid valve housing when closing, and effectively improves the closing efficiency.
[0023] Please also read Figures 4 to 5 , further, the clamping part 4 also includes a first elastic member 42, one end of the first elastic member 42 is arranged on the first contact surface 41b, and the other end of the first elastic member 42 is arranged on the positioning part, and the first elastic member 42 is used to reset the clamping head 41 that is clamped laterally. Specifically, in this embodiment, the first elastic member 42 is a spring that is laterally arranged between the positioning part and the short side of the clamping part 4. When the short side of the clamping part 4, that is, the wedge formed by the first contact surface 41b and the first inclined surface 41a is squeezed by the wedge block 3 to move toward the positioning part, the first elastic member 42 is laterally compressed, that is, the direction in which the first elastic member 42 is compressed and stored is the same as the direction in which the clamping head 41 clamps the to-be-closed part 5. When the inclined surface matching force of the wedge block 3 is withdrawn, the short side of the clamping part 4 will be pulled away from the positioning part under the elastic force of the first elastic member 42, that is, the direction in which the first elastic member 42 is released to release the elastic force is the same as the direction in which the clamping head 41 releases the to-be-closed part 5.
[0024] Furthermore, the lifting assembly 6 includes a thrust shaft 61, a lifting plate 62, a first guide shaft 63 and a second elastic member 64. The thrust shaft 61 and the lifting plate 62 are arranged at the bottom of the tooling base 1. The upper end of the lifting plate 62 is connected to the wedge block 3 as a whole. The lower end of the lifting plate 62 is used to abut against the bottom plate 12 of the tooling base 1. The thrust shaft 61 is passed through the through hole of the bottom plate 12. The thrust shaft 61 is connected to the lifting plate 62 as a whole. The thrust shaft 61 is used to drive the lifting plate 62 and the wedge block 3 to move longitudinally. The first guide shaft 6 3 is arranged between the positioning part and the bottom plate 12, one end of the first guide shaft 63 is fixedly connected to the positioning part, the other end of the first guide shaft 63 is fixedly connected to the bottom plate 12, the first guide shaft 63 is passed through the lifting plate 62, the lifting plate 62 can move longitudinally along the first guide shaft 63, the second elastic member 64 is sleeved on the first guide shaft 63, one end of the second elastic member 64 is connected to the positioning part, the other end of the second elastic member 64 is connected to the lifting plate 62, and the second elastic member 64 is used to reset the lifting plate 62 that moves longitudinally. Specifically, in this embodiment, the top plate 11, the floor and the positioning part of the tooling base 1 are fixedly connected as one body, and the three are fixed on the production line; while the thrust shaft 61, the lifting plate 62 and the wedge block 3 of the lifting assembly 6 can be transmission-connected, and the lifting plate 62 and the wedge block 3 can be driven by the thrust shaft 61 to move longitudinally relative to the positioning part and the workpiece to be received thereon in the tooling base 1, and then push the clamping head 41 to clamp the workpiece to be received through the inclined surface. The second elastic member 64 is a spring longitudinally arranged on the positioning part and the lifting plate 62 and sleeved on the first guide shaft 63. When the lifting plate 62 moves upward under the push of the thrust shaft 61, the lifting plate 62 moves upward close to the positioning part, and the wedge block 3 is driven by the lifting plate 62 to move upward to form an inclined surface with the clamping part 4. The second elastic member 64 is longitudinally compressed, that is, the direction in which the second elastic member 64 is compressed and stored is the same as the direction in which the wedge block 3 moves. When the thrust of the thrust shaft 61 is withdrawn, the lifting plate 62 is pushed away from the positioning part under the elastic force of the second elastic member 64, and the inclined surface matching force of the wedge block 3 is also withdrawn. The utility model provides precise positioning for the lifting assembly 6 through the first guide shaft 63, ensuring the accuracy and smoothness of the lifting assembly 6 when sliding in the tooling base 1, so that it is not easy to deviate when closing. The utility model also uses the first elastic member 42 and the second elastic member 64 to make the clamping part 4 and the lifting assembly 6 recover automatically after work, and the structure is reliable and the control logic is simple.
[0025] Furthermore, the positioning part includes a base body 13, a positioning shaft 14 and a stop block 15. The base body 13 is located between the top plate 11 of the tooling base 1 and the bottom plate 12 of the tooling base 1. The base body 13 is respectively fixedly connected with the top plate 11 of the tooling base 1, the bottom plate 12 of the tooling base 1 and the positioning shaft 14. The positioning shaft 14 is arranged at the upper end of the base body 13. The part to be closed 5 is sleeved on the positioning shaft 14. The stop block 15 is circumferentially protruded outside the positioning shaft 14. The stop block 15 is used to prevent the part to be closed 5 from rotating circumferentially on the positioning shaft 14. Specifically, the base body 13, the positioning shaft 14 and the stopper 15 are fixedly connected to the top plate 11 and the floor of the tooling base 1, and the lifting assembly 6 can move relative to the positioning part. In this embodiment, the positioning shaft 14 is a columnar shaft used to precisely position the part to be closed 5, and the stopper 15 is a convex block fixedly connected to the bottom of the positioning shaft 14 and corresponding to the shape of the part to be closed 5. The lower end of the base body 13 is against the second elastic member 64, and a groove for accommodating the first elastic member 42 is provided on the base body 13, that is, the base body 13 is against the first elastic member 42. The utility model precisely positions the closing rivet head 21 and the part to be closed 5 through the positioning shaft 14 coaxial with the upper rivet head 2, thereby improving the product qualification rate.
[0026] Please also read Figure 6Furthermore, the upper rivet head 2 also includes a pre-pressed piece 22 and a third elastic piece 23, the tooling base 1 also includes a second guide shaft 16, the second guide shaft 16 is arranged on the top plate 11 of the tooling base 1, the tooling base 1 is longitudinally positioned relative to the upper rivet head 2 through the second guide shaft 16, the pre-pressed piece 22 is arranged at the bottom of the upper rivet head 2 and in the closing rivet head 21, the pre-pressed piece 22 can move longitudinally in the upper rivet head 2, the pre-pressed piece 22 is used to abut against the part to be closed 5 before the closing rivet head 21 contacts the part to be closed 5, the third elastic piece 23 is arranged in the closing rivet head 21 and connected to the pre-pressed piece 22, and the third elastic piece 23 is used to reset the pre-pressed piece 22. Specifically, when using the closing tooling for assembling the solenoid valve of the utility model, the upper rivet head 2 moves downward from a position relatively far away from the tooling base 1 and gradually approaches the tooling base 1, and at the same time, the thrust shaft 61 pushes the lifting plate 62 and the wedge block 3 to move upward in the tooling base 1. During this process, the lifting plate 62 is separated from the bottom plate 12 thereunder, and the wedge block 3 is beveled with the first bevel 41a of the clamping part 4 through the second bevel 3a, driving the jaw part 41d on the clamping part 4 to clamp the to-be-closed piece 5 on the positioning shaft 14, and the first elastic part 42 and the second elastic part 64 are compressed. As the upper rivet head 2 moves downward, the pre-pressed piece 22 first abuts against the to-be-closed piece 5, and the third elastic part 23 is compressed. When the pre-pressed piece 22 is completely pressed into the upper rivet head 2, the closing rivet head 21 abuts against the to-be-closed piece 5 and starts to close. After the closing is completed, the upper rivet head 2 moves upward, the upward thrust of the thrust shaft 61 is withdrawn, the first elastic member 42 causes the clamping part 4 to return horizontally, the second elastic member 64 causes the lifting plate 62 connected to the wedge block 3 to return longitudinally, and the third elastic member 23 causes the pre-pressing member 22 to return.
[0027] In summary, the closing tooling for assembling the solenoid valve of the utility model converts the longitudinal driving force into the lateral driving force by forming a wedge block and a clamping part with matching inclined surfaces, and clamps the part to be closed left and right through two jaws, providing a greater clamping force than the traditional cylinder, and can also effectively avoid problems such as deformation and tilting during closing, and effectively improve the closing efficiency. The utility model provides precise positioning for the lifting assembly through the first guide shaft, ensuring the accuracy and smoothness of the lifting assembly when sliding in the tooling base, so that it is not easy to offset during closing. The utility model also uses the first elastic part, the second elastic part and the third elastic part to make the clamping part, the lifting assembly and the upper rivet head recover automatically after work, and the structure is reliable and the control logic is simple, with low overall cost.
[0028] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A closing tool for assembling a solenoid valve, characterized in that: The invention comprises an upper rivet head (2) and a tooling base (1), wherein the upper rivet head (2) comprises a closing rivet head (21) for closing a piece to be closed (5), and the tooling base (1) comprises a clamping portion (4), a wedge block (3), a positioning portion and a lifting assembly (6), wherein the clamping portion (4) is used to clamp the piece to be closed (5) in the circumferential direction and fix it on the positioning portion, the wedge block (3) is used to drive the clamping portion (4) to clamp the piece to be closed (5) through inclined surface matching, and the lifting assembly (6) is used to drive the wedge block (3) to move longitudinally in the tooling base (1).
2. The solenoid valve assembly tool as claimed in claim 1, characterized in that: The clamping portion (4) includes two clamping heads (41) symmetrically arranged on the left and right, and the clamping head (41) includes a first inclined surface (41a), a first contact surface (41b), a second contact surface (41c) and a jaw portion (41d). The first inclined surface (41a) is arranged on the side of the clamping head (41) away from the piece to be closed (5), and the clamping head (41) cooperates with the inclined surface of the wedge block (3) through the first inclined surface (41a). The first contact surface (41b) is arranged on the side of the clamping head (41) facing the piece to be closed (5), and the clamping head (41) cooperates with the positioning block (3) through the first contact surface (41b). The second contact surface (41c) is arranged above the clamping head (41), and the clamping head (41) is abutted against the top plate (11) of the tooling base (1) through the second contact surface (41c). The jaw portion (41d) is arranged on the side of the clamping head (41) facing the piece to be closed (5). The two clamping heads (41) clamp the piece to be closed (5) laterally from both sides through the symmetrically arranged jaw portions (41d). The distance between the first inclined surface (41a) and the first contact surface (41b) is the largest at the top end of the clamping head (41) and the smallest at the bottom end of the clamping head (41).
3. The solenoid valve assembly tool as claimed in claim 2, characterized in that: The clamping portion (4) further comprises a first elastic member (42), one end of the first elastic member (42) being arranged on the first contact surface (41b), and the other end of the first elastic member (42) being arranged on the positioning portion, and the first elastic member (42) being used for resetting the laterally clamped clamping head (41).
4. The solenoid valve assembly tool as claimed in claim 2, characterized in that: The wedge block (3) includes a second inclined surface (3a), and the second inclined surface (3a) is arranged on a side of the wedge block (3) close to the piece to be closed (5). The second inclined surface (3a) is used to abut against the first inclined surface (41a). The second inclined surface (3a) that moves longitudinally drives the first inclined surface (41a) to move laterally through the inclined surface cooperation, so that the clamping head (41) clamps the piece to be closed (5).
5. The closing tool for assembling a solenoid valve according to claim 4, characterized in that: The lifting assembly (6) comprises a thrust shaft (61) and a lifting plate (62). The thrust shaft (61) and the lifting plate (62) are arranged at the bottom of the tooling base (1). The upper end of the lifting plate (62) is connected to the wedge block (3) as a whole. The lower end of the lifting plate (62) is used to abut against the bottom plate (12) of the tooling base (1). The thrust shaft (61) is passed through a through hole of the bottom plate (12). The thrust shaft (61) is connected to the lifting plate (62) as a whole. The thrust shaft (61) is used to drive the lifting plate (62) and the wedge block (3) to move longitudinally.
6. The closing tool for assembling a solenoid valve according to claim 5, characterized in that: The lifting assembly (6) further comprises a first guide shaft (63) and a second elastic member (64); the first guide shaft (63) is arranged between the positioning portion and the base plate (12); one end of the first guide shaft (63) is fixedly connected to the positioning portion, and the other end of the first guide shaft (63) is fixedly connected to the base plate (12); the first guide shaft (63) is passed through the lifting plate (62); the lifting plate (62) can move longitudinally along the first guide shaft (63); the second elastic member (64) is sleeved on the first guide shaft (63); one end of the second elastic member (64) is connected to the positioning portion, and the other end of the second elastic member (64) is connected to the lifting plate (62); the second elastic member (64) is used to reset the lifting plate (62) that moves longitudinally.
7. The solenoid valve assembly tool as claimed in claim 1, characterized in that: The positioning portion comprises a base body (13) and a positioning shaft (14); the base body (13) is located between a top plate (11) of a tooling base (1) and a bottom plate (12) of the tooling base (1); the base body (13) is respectively fixedly connected to the top plate (11) of the tooling base (1), the bottom plate (12) of the tooling base (1) and the positioning shaft (14); the positioning shaft (14) is arranged at the upper end of the base body (13); and the to-be-closed piece (5) is sleeved on the positioning shaft (14).
8. The solenoid valve assembly tool as claimed in claim 7, characterized in that: The positioning portion further comprises a stop block (15), which is circumferentially protruding outside the positioning shaft (14), and is used to prevent the piece to be closed (5) from rotating circumferentially on the positioning shaft (14).
9. The solenoid valve assembly tool as claimed in claim 1, characterized in that: The tooling base (1) further comprises a second guide shaft (16), wherein the second guide shaft (16) is arranged on the top plate (11) of the tooling base (1), and the tooling base (1) is longitudinally positioned relative to the upper rivet head (2) via the second guide shaft (16).
10. The solenoid valve assembly closing tool as claimed in claim 1, characterized in that: The upper rivet head (2) further comprises a pre-pressing member (22) and a third elastic member (23); the pre-pressing member (22) is arranged at the bottom of the upper rivet head (2) and inside the closing rivet head (21); the pre-pressing member (22) is capable of longitudinal movement inside the upper rivet head (2); the pre-pressing member (22) is used to abut against the part to be closed (5) before the closing rivet head (21) contacts the part to be closed (5); the third elastic member (23) is arranged inside the closing rivet head (21) and connected to the pre-pressing member (22); the third elastic member (23) is used to reset the pre-pressing member (22).