Inclined hole forming auxiliary die

Abstract

The utility model relates to the technical field of die design, and discloses an inclined hole forming auxiliary die which comprises a die body, a sliding rod assembly, a transmission assembly and a driving assembly, and a first sliding way and a second sliding way which are arranged at an angle and are communicated are arranged in the die body; the sliding rod assembly comprises a sliding rod which penetrates through the first sliding way and is in sliding connection with the first sliding way, and the sliding rod is used for forming an inclined hole. The transmission assembly comprises a transmission rod which penetrates through the second slide way and is in sliding connection with the second slide way, and the transmission rod is in sliding connection with the slide rod at the communication position of the first slide way and the second slide way; the driving assembly is connected with the transmission rod through a connecting piece and used for driving the transmission rod to slide in the second sliding way. And the first slide way and the second slide way are arranged at an angle, so that an original long linear motion path in one direction can be decomposed into shorter motion paths in two directions, the thickness of the auxiliary mold is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold design, in particular to an auxiliary mold for oblique hole forming. Background Art

[0002] When producing products with inclined holes, such as automobile steering bearings, since the position of the inclined hole on the product cannot be adjusted, it is necessary to set an inclined sliding rod structure in the corresponding product mold.

[0003] To adjust the position of the slide bar structure within the mold, a transmission rod aligned with the slide bar structure's sliding direction is typically installed inside the mold. However, this design lengthens the slide bar structure's movement path within the mold and increases the mold's overall thickness. Consequently, adopting this approach would require a larger die-casting machine, significantly increasing production costs. Utility Model Content

[0004] The technical problem addressed by this utility model is to provide an auxiliary die for oblique hole forming, effectively resolving the problem of excessive mold thickness caused by the irrational motion path design of the slide bar structure in related technologies. The first and second slideways are arranged at an angle, breaking down the original long, straight motion path in one direction into two shorter motion paths. This effectively reduces the thickness of the auxiliary die and lowers the production cost of the product.

[0005] The above technical problems are solved by the following technical solutions:

[0006] An auxiliary mold for forming an inclined hole, comprising: a mold body, a slide assembly, a transmission assembly and a drive assembly, wherein a first slide and a second slide arranged at an angle and connected to each other are provided inside the mold body; the slide assembly comprises a slide rod passed through the first slide and slidably connected to the first slide, and the slide rod is used to form an inclined hole; the transmission assembly comprises a transmission rod passed through the second slide and slidably connected to the second slide, and the transmission rod is slidably connected to the slide rod at the connection point between the first slide and the second slide; the drive assembly is connected to the transmission rod through a connecting piece, and is used to drive the transmission rod to slide in the second slide.

[0007] The auxiliary mold for forming an inclined hole described in the present invention (hereinafter referred to as the "auxiliary mold" for the convenience of expression) has the following beneficial effects compared with the background technology: the first slide and the second slide are set at an angle, which can decompose the long straight motion path originally in one direction into shorter motion paths in two directions, thereby reducing the thickness of the auxiliary mold itself. In this way, when producing products with inclined holes, a smaller-sized die-casting machine can be selected to cooperate with the auxiliary mold, avoiding the initial investment in equipment procurement costs. In addition, the first slide and the second slide are connected, so that the slide rod and the transmission rod can be transmitted and matched at the connection point between the first slide and the second slide, and then the slide rod can slide smoothly along the first slide under the drive of the transmission rod, ensuring the smooth forming of the inclined hole. Secondly, the drive assembly is used to drive the transmission rod to move, making the entire inclined hole forming process more automated, reducing the complexity and labor intensity of manual operation, and improving production efficiency. Furthermore, a connecting piece is provided between the drive assembly and the transmission rod, so that the power generated by the drive assembly can be directly and efficiently transmitted to the transmission rod, ensuring smooth sliding between the transmission rod and the slide rod, and improving the forming efficiency and quality of the inclined hole.

[0008] In one embodiment, the driving assembly includes a driving member and a mounting seat, the driving member is arranged on the side wall of the mold body through the mounting seat, and the driving end of the driving member is connected to the connecting member.

[0009] In one embodiment, the connecting member includes a connecting sleeve and a connecting rod, wherein the driving end of the driving member and one end of the connecting rod are connected through the connecting sleeve, and the other end of the connecting rod is connected to the transmission rod.

[0010] In one embodiment, the connecting sleeve includes a plurality of arc-shaped sleeves, and the plurality of arc-shaped sleeves are fixed in sequence by fasteners to connect the driving end of the driving member and the connecting rod.

[0011] In one embodiment, one of the connecting rod and the transmission rod is provided with a protrusion, and the other is provided with a groove matching the protrusion, and the protrusion is engaged with the groove.

[0012] In one embodiment, an annular groove is provided on the peripheral side of the connecting rod near one end of the connecting sleeve, and an annular protrusion matching the annular groove is provided on the inner side wall of the connecting sleeve, and the annular protrusion is engaged with the annular groove.

[0013] In one embodiment, the second slide is bent, and the transmission rod includes a first sub-transmission rod that matches and is slidably connected to the second slide and a second sub-transmission rod that is set at an angle to the first sub-transmission rod, and the second sub-transmission rod is inclined in a direction away from the sliding rod and is slidably connected to the sliding rod at the connection point between the first slide and the second slide.

[0014] In one embodiment, the transmission assembly also includes a slide rod seat connected to the slide rod, the slide rod seat is located at the connection point between the first slide and the second slide and is slidingly connected to the first slide, and a cavity connected to the second slide is provided in the slide rod seat, and the shape of the cavity is adapted to the shape of the second sub-transmission rod, and the second sub-transmission rod is passed through the cavity and is slidingly connected to the slide rod seat.

[0015] In one embodiment, the first slide includes a first sub-slide and a second sub-slide, the slide bar is slidably connected to the first sub-slide, and the slide bar seat is slidably connected to the second sub-slide.

[0016] In one embodiment, the shape of the slide bar seat is adapted to the shape of the second sub-slide; the size of the second sub-slide is larger than that of the first sub-slide, and a step surface is formed at the connection between the second sub-slide and the first sub-slide. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural schematic diagram of an auxiliary die for oblique hole forming according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 The schematic structural diagram of the oblique hole forming auxiliary die in another state is shown;

[0020] Figure 3 This is a schematic diagram of the connection between the drive assembly and the transmission assembly in an embodiment of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Mold body; 101. First slide; 1011. First sub-slide; 1012. Second sub-slide; 1013. Step surface; 102. Second slide; 2. Slide rod assembly; 201. Slide rod; 3. Transmission assembly; 301. Transmission rod; 3011. Groove portion; 3012. First sub-transmission rod; 3013. Second sub-transmission rod; 302. Slide rod seat; 4. Drive assembly; 401. Drive member; 402. Mounting seat; 5. Connecting member; 501. Connecting sleeve; 5011. Arc sleeve; 5012. Annular protrusion; 502. Connecting rod; 5021. Protrusion; 5022. Annular groove; 6. Wear-resistant block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] Aiming at the problem of large thickness of product mold caused by unreasonable motion path design of the slide rod structure in the related art, the utility model provides an auxiliary mold for inclined hole forming.

[0028] The following combination Figures 1 to 3 , describing the embodiments of the present utility model.

[0029] According to the embodiment of the present utility model, Figure 1 and Figure 2 As shown, an auxiliary mold for inclined hole forming (hereinafter referred to as "auxiliary mold" for the convenience of expression) is provided, including: a mold body 1, a slide rod assembly 2, a transmission assembly 3 and a drive assembly 4.

[0030] Specifically, the mold body 1 is provided with a first slide 101 and a second slide 102 which are arranged at an angle and connected to each other; the slide rod assembly 2 includes a slide rod 201 which is passed through the first slide 101 and is slidably connected to the first slide 101, and the slide rod 201 is used to form an inclined hole; the transmission assembly 3 includes a transmission rod 301 which is passed through the second slide 102 and is slidably connected to the second slide 102, and the transmission rod 301 is slidably connected to the slide rod 201 at the connection point between the first slide 101 and the second slide 102; the drive assembly 4 is connected to the transmission rod 301 through a connecting member 5, and is used to drive the transmission rod 301 to slide in the second slide 102.

[0031] The auxiliary mold provided in this embodiment adopts an angled arrangement of the first slide 101 and the second slide 102, so that the long straight motion path originally in one direction can be decomposed into shorter motion paths in two directions, thereby reducing the thickness of the auxiliary mold itself and reducing the preparation and production cost of the auxiliary mold.

[0032] It should be noted that the auxiliary mold is an auxiliary device in the inclined hole forming process. In order to make an inclined hole on a product, taking an automobile steering bearing as an example, it is usually necessary to cooperate with a die-casting machine and other related equipment to carry out the inclined hole forming process normally. Since the auxiliary mold of this embodiment has a relatively small thickness, when producing products with inclined holes, a smaller-sized die-casting machine can be selected to cooperate with the auxiliary mold for production, thereby reducing the initial equipment procurement cost when producing automobile steering bearings. In addition, the first slide 101 and the second slide 102 are connected, so that the slide rod 201 and the transmission rod 301 can be transmitted and matched at the connection point between the first slide 101 and the second slide 102, and then the slide rod 201 can slide smoothly along the first slide 101 under the drive of the transmission rod 301, thereby ensuring the smooth forming of the inclined hole. Secondly, the drive assembly 4 is used to drive the transmission rod 301 to move, so that the entire inclined hole forming process is more automated, reducing the complexity and labor intensity of manual operation and improving production efficiency. Furthermore, a connecting member 5 is provided between the driving assembly 4 and the transmission rod 301, so that the power generated by the driving assembly 4 can be directly and efficiently transmitted to the transmission assembly 3, ensuring smooth sliding between the transmission rod 301 and the sliding rod 201, thereby improving the forming efficiency and quality of the inclined hole.

[0033] During the inclined hole forming process, the slide bar 201, driven by the transmission rod 301, can have two motion states. Specifically, in the first motion state, the slide bar 201, driven by the transmission rod 301, slides along the first slideway 101 in a direction away from the transmission rod 301 and partially extends out of the first slideway 101. In the second motion state, the slide bar 201, driven by the transmission rod 301, slides along the first slideway 101 in a direction toward the transmission rod 301 until it is completely within the first slideway 101. Furthermore, driven by the drive assembly 4, the slide bar 201 can continuously switch between these two states at preset time intervals, achieving automatic inclined hole forming and continuous production.

[0034] In one embodiment, Figure 1 and Figure 2 As shown, the driving assembly 4 includes a driving member 401 and a mounting seat 402. The driving member 401 is arranged on the side wall of the mold body 1 through the mounting seat 402. On the one hand, it can make the structure of the entire auxiliary mold more compact, reduce the volume of the auxiliary mold, and save the required assembly space; on the other hand, it can reduce the possibility of the driving member 401 changing its position with the mold body 1 due to vibration or impact, and ensure that the driving member 401 always provides continuous and stable power to the transmission rod 301 during the inclined hole forming process, thereby ensuring the forming efficiency and quality of the inclined hole.

[0035] It should be noted that the driving member 401 in this embodiment can be, but is not limited to, a telescopic oil cylinder and a telescopic air cylinder, as long as it can drive the transmission rod 301 to slide back and forth in the second slide 102. The present invention does not make any specific restrictions on this. For example, in a specific embodiment, the telescopic end of the telescopic oil cylinder is connected to the transmission rod 301 through a connector 5. It is understandable that during the continuous production of inclined holes, under the influence of friction, the connection between the telescopic end of the telescopic oil cylinder and the transmission rod 301 is prone to wear. Therefore, compared to directly connecting the telescopic end of the telescopic oil cylinder and the transmission rod 301, a connector 5 is provided between the telescopic end of the telescopic oil cylinder and the transmission rod 301. When wear occurs at the connection, only the connector 5 needs to be replaced without replacing the entire transmission rod 301, thereby reducing subsequent maintenance costs.

[0036] Specifically, if Figures 1 to 3 As shown, the connector 5 includes a connecting sleeve 501 and a connecting rod 502. The driving end of the driver 401 is connected to one end of the connecting rod 502 via the connecting sleeve 501, while the other end of the connecting rod 502 is connected to the transmission rod 301. Compared to using a single integral connector 5, dividing the connector 5 into two parts—the connecting sleeve 501 and the connecting rod 502—allows for a modular design, meaning each part can be independently installed, removed, and replaced. This not only simplifies maintenance but also reduces maintenance costs.

[0037] Furthermore, in order to improve the convenience of connecting the connecting sleeve 501 to the connecting rod 502 and the driving member 401, as shown in FIG. Figure 3 As shown, in one embodiment, the connecting sleeve 501 includes a plurality of arcuate sleeves 5011, which are sequentially connected and fixed by fasteners to form an annular connecting sleeve 501, which is used to connect the driving end of the driving member 401 and the connecting rod 502. Specifically, the fasteners in this embodiment are bolts and nuts. When the plurality of arcuate sleeves 5011 are assembled, coaxial mounting holes are provided on two adjacent arcuate sleeves 5011. The bolts pass through the mounting holes, and the nuts are tightened to fasten the two adjacent arcuate sleeves 5011 together.

[0038] Furthermore, in order to improve the connection stability between the connecting sleeve 501 and the connecting rod 502, as shown in FIG. Figure 3As shown, in one embodiment, an annular groove 5022 is provided on the circumferential side of the connecting rod 502 near one end of the connecting sleeve 501, and an annular protrusion 5012 that matches the annular groove 5022 is provided on the inner side wall of the connecting sleeve 501, and the annular protrusion 5012 is engaged with the annular groove 5022. After the connecting sleeve 501 and the connecting rod 502 are connected, the annular groove 5022 and the annular protrusion 5012 cooperate with each other to play a limiting role, reducing the possibility of loosening or displacement of the two during operation. In addition, during the assembly process, the cooperation between the annular groove 5022 and the annular protrusion 5012 can make the positioning between the connecting rod 502 and the connecting sleeve 501 very precise, so that the connecting rod 502 and the connecting sleeve 501 can be quickly and conveniently connected together, thereby improving assembly efficiency.

[0039] It is understandable that in order to achieve the same effect as mentioned above, multiple positioning grooves can also be provided on the circumferential side of the connecting rod 502 close to one end of the connecting sleeve 501, and the multiple positioning grooves can be arranged at intervals along the circumference of the connecting rod 502; and multiple positioning grooves can be provided on the inner side wall of the connecting sleeve 501, with one-to-one corresponding and matching positioning protrusions.

[0040] Similarly, in order to further improve the convenience during the assembly process, the structures of the connecting rod 502 and the transmission rod 301 can also be appropriately adjusted. For example, Figures 1 to 3 As shown, one of the connecting rod 502 and the transmission rod 301 is provided with a protrusion 5021, and the other is provided with a groove portion 3011 that matches the protrusion 5021, and the protrusion 5021 and the groove portion 3011 are matched and clamped. Through the cooperation of the protrusion 5021 and the groove portion 3011, the operator can accurately position the connecting rod 502 and the transmission rod 301 in a short time, thereby improving assembly efficiency. Secondly, the protrusion 5021 and the groove portion 3011 adopt a matching connection mode, which makes it possible for the operator to relatively simply assemble or disassemble, and the matching connection between the protrusion 5021 and the groove portion 3011 can also ensure the connection strength between the connecting rod 502 and the transmission rod 301.

[0041] In one embodiment, Figures 1 to 3As shown, the second slideway 102 is bent, and the transmission rod 301 includes a first sub-transmission rod 3012 that matches and is slidably connected to the second slideway 102, and a second sub-transmission rod 3013 that is arranged at an angle to the first sub-transmission rod 3012. The second sub-transmission rod 3013 is tilted in a direction away from the slide bar 201 and is slidably connected to the slide bar 201 at the connection between the first slideway 101 and the second slideway 102. The second sub-transmission rod 3013 is tilted in a direction away from the slide bar 201 and is slidably connected to the slide bar 201 at the connection between the first slideway 101 and the second slideway 102, so that the second sub-transmission rod 3013 and the slide bar 201 form a wedge-like mechanism. Through this wedge-like mechanism, the sliding movement of the second sub-transmission rod 3013 in the second slideway 102 is converted into the sliding movement of the slide bar 201 in the first slideway 101. Furthermore, the sliding connection between the second sub-transmission rod 3013 and the slide rod 201 can not only reduce the energy loss during the transmission process, but also improve the stability of the transmission process and ensure the accuracy of the hole forming.

[0042] In one embodiment, Figure 1 and Figure 2 As shown, the transmission assembly 3 further includes a slide bar seat 302 connected to the slide bar 201. The slide bar seat 302 is located at the connection point between the first slideway 101 and the second slideway 102 and is slidably connected to the first slideway 101. A cavity is defined within the slide bar seat 302 and communicates with the second slideway 102. The shape of the cavity matches the shape of the second sub-transmission rod 3013. The second sub-transmission rod 3013 is disposed within the cavity and is slidably connected to the slide bar seat 302. It will be appreciated that the design of the slide bar seat 302 ensures efficient transmission between the slide bar 201 and the second sub-transmission rod 3013. Furthermore, matching the shape of the cavity within the slide bar seat 302 to the shape of the second sub-transmission rod 3013 reduces energy loss and improves transmission efficiency.

[0043] In one embodiment, Figure 1 and Figure 2 As shown, the first slide 101 includes a first sub-slide 1011 and a second sub-slide 1012. The slide bar 201 is slidably connected to the first sub-slide 1011, and the slide bar seat 302 is slidably connected to the second sub-slide 1012. Subdividing the first slide 101 into two parts, which are respectively connected to the slide bar 201 and the slide bar seat 302, can achieve more precise control of the motion trajectory of the slide bar 201, thereby ensuring the quality of the inclined hole forming.

[0044] Since the slide bar 201 will extend out of the first slideway 101 under the drive of the transmission rod 301 during the process of forming the inclined hole, in order to prevent the movement trajectory of the slide bar 201 from exceeding the preset range and ensure the normal operation of the inclined hole forming process, the shapes of the slide bar seat 302 and the first slideway 101 can be appropriately adjusted. The specific adjustment method is as follows: Figures 1 to 3As shown, the shape of the slide bar seat 302 is adapted to the shape of the second sub-slide 1012, while the size of the second sub-slide 1012 is larger than the size of the first sub-slide 1011, and a step surface 1013 is provided at the connection between the second sub-slide 1012 and the first sub-slide 1011. It is understood that when the slide bar seat 302 abuts the step surface 1013, the slide bar 201 cannot continue to slide along the first slide 101 in a direction away from the transmission rod 301.

[0045] Furthermore, to extend the service life of the first slideway 101 and the second slideway 102, wear-resistant blocks 6 may be provided on the inner walls of the first slideway 101 and the second slideway 102. Taking the provision of the wear-resistant blocks 6 in the second slideway 102 as an example, the wear-resistant blocks 6 surround the circumference of the transmission rod 301 and are slidably connected to the transmission rod 301.

[0046] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The specific contents of the above-mentioned specific embodiments only express several embodiments of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. An auxiliary die for forming an inclined hole, characterized in that: include: A mold body (1), a slide assembly (2), a transmission assembly (3) and a drive assembly (4), wherein a first slideway (101) and a second slideway (102) arranged at an angle and connected to each other are provided inside the mold body (1); the slide assembly (2) includes a slideway (201) passing through the first slideway (101) and slidably connected to the first slideway (101), and the slideway (201) is used to form an inclined hole; the transmission assembly (3) includes a transmission rod (301) passing through the second slideway (102) and slidably connected to the second slideway (102), and the transmission rod (301) is slidably connected to the slideway (201) at the connection point between the first slideway (101) and the second slideway (102); the drive assembly (4) is connected to the transmission rod (301) through a connecting piece (5) and is used to drive the transmission rod (301) to slide in the second slideway (102).

2. The auxiliary die for forming an inclined hole according to claim 1, characterized in that: The driving assembly (4) comprises a driving member (401) and a mounting seat (402); the driving member (401) is arranged on the side wall of the mold body (1) via the mounting seat (402); and the driving end of the driving member (401) is connected to the connecting member (5).

3. The auxiliary die for forming an inclined hole according to claim 2, characterized in that: The connecting member (5) comprises a connecting sleeve (501) and a connecting rod (502), wherein the driving end of the driving member (401) and one end of the connecting rod (502) are connected via the connecting sleeve (501), and the other end of the connecting rod (502) is connected to the transmission rod (301).

4. The auxiliary die for forming an inclined hole according to claim 3, characterized in that: The connecting sleeve (501) comprises a plurality of arc-shaped sleeves (5011), and the plurality of arc-shaped sleeves (5011) are fixed in sequence by fasteners to connect the driving end of the driving member (401) and the connecting rod (502).

5. The auxiliary die for forming an inclined hole according to claim 3, characterized in that: One of the connecting rod (502) and the transmission rod (301) is provided with a protrusion (5021), and the other is provided with a groove (3011) matching the protrusion (5021), and the protrusion (5021) and the groove (3011) are engaged with each other.

6. The auxiliary die for forming an inclined hole according to claim 3, characterized in that: An annular groove (5022) is provided on the peripheral side of the connecting rod (502) near one end of the connecting sleeve (501), and an annular protrusion (5012) matching the annular groove (5022) is provided on the inner side wall of the connecting sleeve (501), and the annular protrusion (5012) is engaged with the annular groove (5022).

7. The auxiliary die for forming an inclined hole according to any one of claims 1 to 6, characterized in that: The second slideway (102) is bent, and the transmission rod (301) includes a first sub-transmission rod (3012) matched with and slidably connected to the second slideway (102) and a second sub-transmission rod (3013) arranged at an angle to the first sub-transmission rod (3012), and the second sub-transmission rod (3013) is inclined in a direction away from the slideway (201) and is slidably connected to the slideway (201) at the connection point between the first slideway (101) and the second slideway (102).

8. The auxiliary die for forming an inclined hole according to claim 7, characterized in that: The transmission assembly (3) also includes a slide bar seat (302) connected to the slide bar (201), the slide bar seat (302) is located at the connection point between the first slideway (101) and the second slideway (102) and is slidably connected to the first slideway (101), and a cavity connected to the second slideway (102) is provided in the slide bar seat (302), the shape of the cavity is adapted to the shape of the second sub-transmission rod (3013), and the second sub-transmission rod (3013) is inserted into the cavity and is slidably connected to the slide bar seat (302).

9. The auxiliary die for forming an inclined hole according to claim 8, characterized in that: The first slide (101) comprises a first sub-slide (1011) and a second sub-slide (1012); the slide bar (201) is slidably connected to the first sub-slide (1011); and the slide bar seat (302) is slidably connected to the second sub-slide (1012).

10. The auxiliary die for forming an inclined hole according to claim 9, characterized in that: The shape of the slide bar seat (302) is adapted to the shape of the second sub-slide (1012); the size of the second sub-slide (1012) is larger than the size of the first sub-slide (1011), and a step surface (1013) is formed at the connection between the second sub-slide (1012) and the first sub-slide (1011).

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