Anti-springback tool

Abstract

The utility model relates to an anti-springback tool, which comprises a support, a mounting plate, a pressure head, an extrusion piece and a driving piece, the mounting plate is arranged at one end of the support in a first direction and is used for mounting a casing of a motor, and the pressure head is arranged on a stator of the motor and is used for extruding the stator of the motor. The extrusion part is movably arranged in the first direction and is provided with an extrusion position capable of abutting against the pressing head and a separation position capable of being separated from the pressing head, and at the extrusion position, the extrusion part is located on the side, away from the mounting plate, of the pressing head in the first direction; the driving part is connected with the extrusion part to drive the extrusion part to move between the extrusion position and the separation position. The anti-springback tool can prevent the stator from springback in the hot charging process of the casing and the stator, is convenient to operate, can save the manual operation time, improve the labor efficiency and reduce the labor cost, and has advantages in batch production and assembly of the casing and the stator.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressor production and assembly, in particular to an anti-rebound tooling. Background Art

[0002] The hot-installation process of the stator of a two-stage air-suspended centrifugal electric direct-drive air compressor is a key process in the production and assembly process of the air compressor. The assembly quality of this process has an important impact on the motor performance of the air compressor. This process mainly needs to ensure that the axial center position of the stator must coincide with the axial center position of the rotor assembled inside the casing, and the center coincidence error of the two must be controlled within a certain tolerance range. When the three-phase output line of the air compressor is located below the motor, after the stator is hot-installed, the stator output line will contact the casing wiring port, and the output line will produce elastic deformation to cause the stator to move upward, and finally the stator will be out of the preset correct position, resulting in unqualified stator assembly, resulting in the error of the stator axial center position and the rotor axial center position coinciding with the error. In the related art, manual force is applied to the stator end face, but this method is time-consuming and labor-intensive, with low production efficiency, and is not suitable for mass production of products. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the embodiment of the utility model proposes an anti-rebound tooling, which can prevent the rebound of the stator during the hot-fitting process of the housing and the stator, and is easy to operate, can save labor time, improve labor efficiency, reduce labor costs, and has advantages in the batch production and assembly of the housing and the stator.

[0004] The anti-rebound tooling of the utility model embodiment includes a bracket, a mounting plate, a pressure head, an extrusion member and a driving member, the mounting plate is arranged at one end of the bracket in the first direction, the mounting plate is used to install the housing of the motor, the pressure head is used to be arranged on the stator of the motor, the extrusion member is movably arranged in the first direction and has an extrusion position that can abut against the pressure head and a disengagement position that can disengage from the pressure head, in the extrusion position, the extrusion member is located on the side of the pressure head away from the mounting plate in the first direction, the driving member is arranged on the bracket, and the driving member is connected to the extrusion member to drive the extrusion member to move between the extrusion position and the disengagement position.

[0005] The anti-rebound tooling of the embodiment of the utility model can prevent the rebound of the stator during the hot installation of the casing and the stator, and is easy to operate, can save manual operation time, improve labor efficiency, and reduce labor costs, and has advantages in the batch production and assembly of the casing and the stator.

[0006] In some embodiments, the driving member has a connecting end, which is provided with a threaded hole extending along the first direction; the extrusion member has a screw portion, one end of the screw portion in the first direction is engaged in the threaded hole, and the other end of the screw portion in the first direction faces the pressing head.

[0007] In some embodiments, the extrusion member further has an elastic portion, and the elastic portion is provided at the other end of the screw portion, and the elastic portion of the extrusion member located at the extrusion position abuts against the pressure head.

[0008] In some embodiments, the driving member includes a locking nut, which is engaged with the screw portion and abuts against the connecting end.

[0009] In some embodiments, the other end of the bracket in the first direction is provided with a mounting hole; the driving member also includes an elbow clamp, the elbow clamp having a wrench portion, a fixing portion and a connecting rod portion, the fixing portion is provided at the other end of the bracket in the first direction, the wrench portion is rotatably provided on the fixing portion, the wrench portion is connected to one end of the connecting rod portion, the other end of the connecting rod portion forms a connecting end of the driving member, and the connecting rod portion is passed through the mounting hole.

[0010] In some embodiments, the pressure head has a positioning ring, the inner hole of the positioning ring is used to be sleeved on the stator, and one end of the positioning ring in the first direction abuts against the stator, and the positioning ring is gap-matched with the hole of the housing.

[0011] In some embodiments, the pressure head has a pressure-bearing portion, the pressure-bearing portion is connected to the other end of the positioning ring in the first direction, a plurality of weight-reducing holes are provided on the pressure-bearing portion, and the pressure-bearing portion abuts against the extrusion member located at the extrusion position.

[0012] In some embodiments, the pressure-bearing portion has a connected flat plate section and a column section, the flat plate section is provided with the weight-reducing hole, and the column section abuts against the extrusion piece located at the extrusion position.

[0013] In some embodiments, an annular groove is provided on the column segment, and there are a plurality of the annular grooves, which are arranged at intervals along the first direction.

[0014] In some embodiments, a positioning ring groove is provided on the mounting plate, the positioning ring groove is used to cooperate with the housing, and the central axis of the positioning ring groove coincides with the central axis of the screw portion of the extrusion member located at the extrusion position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the structural schematic diagrams of the anti-rebound tooling of the embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a bracket and a mounting plate of an embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the pressure head of an embodiment of the utility model;

[0018] Figure 4 It is a schematic structural diagram of an extrusion member and a driving member of an embodiment of the utility model;

[0019] Figure 5 This is the second structural schematic diagram of the anti-rebound tooling of the embodiment of the utility model.

[0020] Reference numerals:

[0021] Anti-rebound tooling 100;

[0022] Bracket 1, mounting hole 11;

[0023] Mounting plate 2, positioning ring groove 21;

[0024] Pressure head 3, positioning ring 31, pressure bearing part 32, weight reduction hole 321, flat plate section 322, column section 323, annular groove 3231;

[0025] Extrusion member 4, screw portion 41, elastic portion 42;

[0026] Driving member 5, locking nut 51, toggle clamp 52, wrench portion 521, fixing portion 522, connecting rod portion 523, connecting end 53;

[0027] Casing 200 , stator 300 . DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0029] like Figures 1 to 5 As shown, the anti-rebound tool 100 of the utility model embodiment includes a bracket 1, a mounting plate 2, a pressure head 3, an extrusion member 4 and a driving member 5. The mounting plate 2 is arranged on the bracket 1 in a first direction (for example Figure 1The mounting plate 2 is used to mount the motor housing 200, the pressure head 3 is used to be arranged on the stator 300 of the motor, the extrusion member 4 is movably arranged in the first direction and has an extrusion position capable of abutting against the pressure head 3 and a disengagement position capable of disengaging from the pressure head 3. In the extrusion position, the extrusion member 4 is located on the side of the pressure head 3 away from the mounting plate 2 in the first direction. The driving member 5 is arranged on the bracket 1, and the driving member 5 is connected to the extrusion member 4 to drive the extrusion member 4 to move between the extrusion position and the disengagement position.

[0030] The use process of the anti-rebound tool 100 of the embodiment of the utility model is as follows:

[0031] S1, after the stator 300 is heat-fitted into the housing 200, the pressing head 3 is placed on the stator 300 so that the pressing head 3 contacts the end surface of the silicon steel sheet of the stator 300.

[0032] S2, placing the housing 200 on the mounting plate 2.

[0033] S3, the driving member 5 drives the extruding member 4 to move to the extruding position, so that the extruding member 4 abuts against the pressing head 3. Figure 1 The extrusion member 4 exerts a downward force on the pressure head 3, thereby causing the stator 300 to be subjected to a downward force, so that the stator 300 cannot rebound upward. During the process of the temperature of the housing 200 decreasing, a fan can be used to accelerate the speed of cooling the housing 200.

[0034] S4, after the temperature drops to room temperature, the inner holes of the housing 200 and the stator 300 are completely shrunk, and the stator 300 can no longer rebound upward. The driving member 5 drives the extrusion member 4 to move from the extrusion position to the disengagement position. After the extrusion member 4 is disengaged from the pressure head 3, the stator 300 pressure head 3 is removed to complete the assembly process of the housing 200 and the stator 300.

[0035] In the anti-rebound tooling 100 of the embodiment of the utility model, at the extrusion position, the driving member 5 drives the extrusion member 4 to abut against the pressure head 3, so that the pressure head 3 is subjected to a downward force, and then the stator 300 is subjected to a downward force, thereby avoiding the stator 300 from rebounding upward during the hot-fitting process of the housing 200 and the stator 300, resulting in the coincidence of the central axis of the housing 200 and the central axis of the stator 300 within a predetermined tolerance range, thereby ensuring the assembly effect of the housing 200 and the stator 300.

[0036] The anti-rebound tool 100 of the embodiment of the utility model can prevent the stator 300 from rebounding during the hot installation of the housing 200 and the stator 300, and is easy to operate, can save manual operation time, improve labor efficiency, and reduce labor costs, and has advantages in the batch production and assembly of the housing 200 and the stator 300.

[0037] In order to make the solution of the present application easier to understand, the first direction is taken as an example to illustrate that the first direction is the same as the up-down direction. Figure 1 , Figure 2 and Figure 5 shown.

[0038] The anti-rebound tool 100 of the embodiment of the utility model comprises a bracket 1 , a mounting plate 2 , a pressing head 3 , an extruding member 4 and a driving member 5 .

[0039] The mounting plate 2 is disposed at one end (lower end) of the bracket 1 in the first direction, and the mounting plate 2 is used to mount the motor housing 200. The mounting plate 2 is provided with a positioning ring groove 21, and the positioning ring groove 21 is used to cooperate with the housing 200. In the process of placing the housing 200 on the mounting plate 2, the positioning ring groove 21 facilitates the rapid positioning of the housing 200, and facilitates the alignment of the central axis of the housing 200 with the central axis of the positioning ring groove 21, that is, the central axis of the housing 200 coincides with the central axis of the positioning ring groove 21.

[0040] The ram 3 is used to be arranged on the stator 300 of the motor, and the extrusion member 4 is movably arranged in the first direction and has a extrusion position capable of abutting against the ram 3 and a disengagement position capable of disengaging from the ram 3. In the extrusion position, the extrusion member 4 is located on the side (upper side) of the ram 3 away from the mounting plate 2 in the first direction. The driving member 5 is arranged on the bracket 1, and the driving member 5 is connected to the extrusion member 4 to drive the extrusion member 4 to move between the extrusion position and the disengagement position.

[0041] The driving member 5 has a connecting end 53, and the connecting end 53 is provided with a threaded hole extending along the first direction. The extruding member 4 has a screw portion 41, one end (upper end) of the screw portion 41 in the first direction is fitted in the threaded hole, and the other end (lower end) of the screw portion 41 in the first direction faces the pressure head 3. The extrusion member 4 is connected to the connecting end 53 through the cooperation of the screw portion 41 and the threaded hole, that is, the connection between the extrusion member 4 and the driving member 5 is realized. The threaded connection method between the screw portion 41 and the threaded hole is simple and easy to process and manufacture. It is also convenient to adjust the cooperation length of the screw portion 41 and the threaded hole, thereby adjusting the cooperation length of the extrusion member 4 and the driving member 5, that is, adjusting the height of the other end of the screw portion 41, fine-tuning the degree of extrusion of the extrusion member 4 on the pressure head 3, and fine-tuning the force of the pressure head 3 on the stator 300. In addition, it can adapt to the thermal assembly of casings 200 and stators 300 of different sizes without changing the moving stroke of the extrusion member 4 driven by the driving member 5, thereby improving the adaptability of the anti-rebound tooling 100 of the embodiment of the utility model.

[0042] In some embodiments, the extrusion member 4 further has an elastic portion 42, which is disposed at the other end of the screw portion 41, and the elastic portion 42 of the extrusion member 4 located at the extrusion position abuts against the pressure head 3. The elastic portion 42 has a certain elasticity and can be deformed, so that when the extrusion member 4 moves from the disengaged position to the extrusion position, a hard collision between the screw portion 41 and the pressure head 3 is avoided, and the screw portion 41 is avoided from directly contacting the pressure head 3, thereby ensuring the service life and safety of the screw portion 41. At the same time, the elastic portion 42 with deformation characteristics can also eliminate the situation in which the driving member 5 drives the extrusion member 4 to not press the pressure head 3 tightly due to the difference in size caused by the dimensional tolerance of the housing 200 and the stator 300, thereby ensuring the use effect of the anti-rebound tooling 100 of the embodiment of the utility model. Moreover, when the housing 200 and the stator 300 are thermally assembled, heat will be transferred to the pressing head 3. The elastic portion 42 can reduce or even prevent heat from being transferred from the pressing head 3 to the screw portion 41, further ensuring the service life and safety of the screw portion 41, and ensuring the service life and safety of the anti-rebound tooling 100.

[0043] Specifically, the elastic portion 42 is made of a heat-resistant rubber block, which has good heat resistance and a good heat transfer blocking effect, and can further prevent heat from being transferred to the screw portion 41 , thereby further ensuring the service life and safety of the screw portion 41 .

[0044] The heat-resistant rubber block and the screw portion 41 are formed into an integral structure by insert injection molding, wherein the screw portion 41 is a steel screw.

[0045] The driving member 5 includes a locking nut 51, which is fitted on the screw portion 41 and abuts against the connecting end 53, so that the locking nut 51 and the connecting end 53 with the threaded hole are extruded, so that the threaded sections of the two that match on the screw portion 41 are deformed, so that the locking nut 51, the connecting end 53 and the screw portion 41 are firmly connected, ensuring the connection stability of the extrusion member 4 and the driving member 5. When it is necessary to adjust the matching length between the screw portion 41 and the connecting end 53, first loosen the locking nut 51 to disengage the locking nut 51 from the connecting end 53, and then adjust the thread matching length between the screw portion 41 and the connecting end 53 by twisting the screw portion 41.

[0046] In some embodiments, the central axis of the positioning ring 31 coincides with the central axis of the screw portion 41 of the extrusion piece 4 located at the extrusion position. Then, at the extrusion position, the central axis of the screw portion 41 coincides with the central axis of the housing 200, thereby ensuring that the extrusion piece 4 acts on the central axis of the stator 300 through the pressure head 3, ensuring the uniformity of the distribution of the force acting on the stator 300, avoiding the stator 300 from being deflected, further ensuring the anti-rebound effect of the extrusion piece 4 on the stator 300 during the hot installation, and further ensuring the use effect of the anti-rebound tooling 100 of the embodiment of the utility model.

[0047] like Figure 1 and Figure 4 As shown, the bracket 1 is provided with a mounting hole 11 at the other end (upper end) in the first direction. The driving member 5 includes a toggle clamp 52, which has a wrench portion 521, a fixing portion 522 and a connecting rod portion 523. The fixing portion 522 is provided at the other end of the bracket 1 in the first direction. The wrench portion 521 is rotatably provided on the fixing portion 522. The wrench portion 521 is connected to one end of the connecting rod portion 523. The other end of the connecting rod portion 523 forms the connecting end 53 of the driving member 5. The connecting rod portion 523 is penetrated in the mounting hole 11. When the wrench portion 521 rotates relative to the fixing portion 522, the wrench 521 synchronously drives the connecting rod portion 523 to move up and down.

[0048] When the wrench portion 521 rotates from the vertical state toward the left, the connecting rod portion 523 drives the extrusion member 4 to move from the disengagement position to the extrusion position. When the wrench portion 521 is located at the left limit position, the extrusion member 4 is located at the extrusion position. Figure 1 In the squeezing position, the wrench portion 521 is rotated rightward and upward, and the connecting rod portion 523 drives the squeezing member 4 to move from the squeezing position to the disengaging position.

[0049] The structure of the elbow clamp 52 is simple, and the technology of related products in the market is mature, low-cost, and easy to operate. The movement of the extrusion member 4 and the extrusion of the pressure head 3 and the stator 300 can be achieved by manually driving the wrench part 521 to move to the left, thereby saving labor costs and having low costs.

[0050] The driving member 5 of the embodiment of the utility model is not limited thereto. For example, in some other embodiments, the driving member 5 includes a telescopic member, the fixed end of the telescopic member is arranged at the other end of the bracket 1, and the movable end of the telescopic member is connected to the connecting end 53 of the driving member 5. Specifically, the telescopic member adopts an electric telescopic rod.

[0051] In some embodiments, the pressure head 3 has a positioning ring 31, the inner hole of the positioning ring 31 is used to be sleeved on the stator 300, and one end (lower end) of the positioning ring 31 in the first direction abuts against the stator 300, and the positioning ring 31 is gap-matched with the hole of the housing 200. The positioning ring 31 can play a role of rapid guidance, which facilitates the installation of the pressure head 3 on the stator 300, and also facilitates the separation of the pressure head 3 from the housing 200 and the stator 300.

[0052] Furthermore, the pressure head 3 has a pressure-bearing portion 32, which is connected to the other end (upper end) of the positioning ring 31 in the first direction, and is provided with a plurality of weight-reducing holes 321, and the pressure-bearing portion 32 abuts against the extrusion member 4 located at the extrusion position. The weight-reducing holes 321 provided on the pressure-bearing portion 32 are not only conducive to reducing the weight of the pressure head 3, but also facilitate heat dissipation of the pressure head 3.

[0053] Specifically, the plurality of weight-reducing holes 321 are distributed at equal intervals around the central axis of the positioning ring 31 , which is beneficial for uniform heat dissipation of the pressing head 3 .

[0054] In some embodiments, the pressure-bearing portion 32 has a connected flat plate section 322 and a column section 323, the flat plate section 322 is provided with a weight-reducing hole 321, and the column section 323 abuts against the extrusion member 4 located at the extrusion position. The column section 323 has a different structure from the flat plate section 322, which makes it easier for personnel to apply force to the column section 323, thereby facilitating the movement of the pressure head 3, and facilitating the placement of the pressure head 3 on the stator 300 and removal from the stator 300.

[0055] For details, see Figure 1 and Figure 3 The column section 323 is cylindrical, the diameter of the column section 323 is smaller than the diameter of the flat plate section 322 , and the length of the column section 323 is greater than the length of the flat plate section 322 .

[0056] In some embodiments, the column section 323 is provided with an annular groove 3231, and the annular groove 3231 has a plurality of annular grooves 3231, and the plurality of annular grooves 3231 are arranged at intervals along the first direction. A person can use a clamp to clamp the column section 323, and the upper and lower sides of the annular groove 3231 can form a limit in the upper and lower directions for the clamp located in the annular groove 3231, so as to ensure that the clamp is prevented from being separated from the pressure head 3 during the process of clamping the pressure head 3 and moving, thereby further improving the convenience of moving the pressure head 3 and improving the convenience of using the anti-rebound tooling 100 of the embodiment of the utility model.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An anti-rebound tooling, characterized in that: include: Bracket (1); A mounting plate (2), the mounting plate (2) being arranged at one end of the bracket (1) in the first direction, the mounting plate (2) being used for mounting a housing of the motor; A pressure head (3), the pressure head (3) being used to be arranged on the stator of the motor; an extrusion member (4), the extrusion member (4) being movably arranged in the first direction and having an extrusion position capable of abutting against the pressing head (3) and a disengagement position capable of disengaging from the pressing head (3), wherein in the extrusion position, the extrusion member (4) is located on a side of the pressing head (3) facing away from the mounting plate (2) in the first direction; and A driving member (5), wherein the driving member (5) is arranged on the bracket (1), and the driving member (5) is connected to the extruding member (4) to drive the extruding member (4) to move between the extruding position and the disengaging position.

2. The anti-rebound tooling according to claim 1, characterized in that: The driving member (5) has a connecting end (53), and the connecting end (53) is provided with a threaded hole extending along the first direction; The extrusion piece (4) has a screw portion (41), one end of the screw portion (41) in the first direction is fitted in the threaded hole, and the other end of the screw portion (41) in the first direction faces the pressing head (3).

3. The anti-rebound tooling according to claim 2, characterized in that: The extrusion member (4) further comprises an elastic portion (42), wherein the elastic portion (42) is arranged at the other end of the screw portion (41), and the elastic portion (42) of the extrusion member (4) located at the extrusion position abuts against the pressure head (3).

4. The anti-rebound tooling according to claim 2, characterized in that: The driving member (5) comprises a locking nut (51), wherein the locking nut (51) is fitted on the screw rod portion (41) and abuts against the connecting end (53).

5. The anti-rebound tooling according to claim 4, characterized in that: The other end of the bracket (1) in the first direction is provided with a mounting hole (11); The driving member (5) further comprises a toggle clamp (52), the toggle clamp (52) comprising a wrench portion (521), a fixing portion (522) and a connecting rod portion (523), the fixing portion (522) being arranged at the other end of the bracket (1) in the first direction, the wrench portion (521) being rotatably arranged on the fixing portion (522), the wrench portion (521) being connected to one end of the connecting rod portion (523), the other end of the connecting rod portion (523) forming a connecting end (53) of the driving member (5), and the connecting rod portion (523) being passed through the mounting hole (11).

6. The anti-rebound tooling according to claim 1, characterized in that: The pressure head (3) has a positioning ring (31), the inner hole of the positioning ring (31) is used to be sleeved on the stator, and one end of the positioning ring (31) in the first direction abuts against the stator, and the positioning ring (31) is gap-matched with the hole of the housing.

7. The anti-rebound tooling according to claim 6, characterized in that: The pressure head (3) has a pressure-bearing portion (32), the pressure-bearing portion (32) is connected to the other end of the positioning ring (31) in the first direction, a plurality of weight-reducing holes (321) are provided on the pressure-bearing portion (32), and the pressure-bearing portion (32) abuts against the extrusion member (4) located at the extrusion position.

8. The anti-rebound tooling according to claim 7, characterized in that: The pressure-bearing portion (32) comprises a connected flat plate section (322) and a column section (323); the flat plate section (322) is provided with the weight-reducing hole (321); and the column section (323) abuts against the extrusion member (4) located at the extrusion position.

9. The anti-rebound tooling according to claim 8, characterized in that: The column section (323) is provided with an annular groove (3231), and there are a plurality of the annular grooves (3231), and the plurality of the annular grooves (3231) are arranged at intervals along the first direction.

10. The anti-rebound tooling according to claim 2, characterized in that: The mounting plate (2) is provided with a positioning ring groove (21), the positioning ring groove (21) is used to cooperate with the housing, and the central axis of the positioning ring groove (21) coincides with the central axis of the screw portion (41) of the extrusion member (4) located at the extrusion position.

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