Gearbox end cover oil guide cover press fitting machine

CN224737669UActive Publication Date: 2026-09-11WUXI ZHEYAN PRECISION MACHINERY CO LTD
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Patent Information

Application Number
CN202522065003.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-09-11
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

[0003]现有技术中,针对变速箱端盖导油罩的压装设备多采用单压杆居中施压或双压杆对称施压的结构设计,然而导油罩为适配变速箱内部空间,其顶部常呈非平整的异形结构(如局部凸起、凹陷),此类传统压装方式无法实现对导油罩顶部四个拐角的同步、均匀施压,要么因受力集中导致罩体局部变形、开裂,要么因施压点位偏差造成导油罩与端盖的装配间隙不均,进而引发油液泄漏问题,严重影响压装质量,为此本申请提出了一种变速箱端盖导油罩压装机

Benefits of technology

[0019]通过在升降板四个拐角设置压装杆,使四个压装杆底端分别抵接罩体顶部四个拐角,实现对罩体的同步、均匀施压,此举可有效避免因受力集中导致的罩体局部变形、开裂,同时消除因施压点位偏差造成的导油罩与端盖装配间隙不均问题,从根源上减少油液泄漏风险,保障变速箱密封性能与使用寿命。

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Abstract

The utility model relates to oil guide cover press -mounting technical field, especially a gearbox end cover oil guide cover press -mounting machine, including main part, the lower half of main part is base, the upper half of main part is the support frame of inverting L shape, and support frame installs in the back of base top, bottom and support frame horizontal straight department between are provided with the lifting plate, all are provided with the through -hole that passes through up and down in four corners of lifting plate, all are inserted with press -mounting rod in four through -holes, install locking mechanism in lifting plate, and locking mechanism can with four press -mounting rod position limiting and engage, cover body is located between base and lifting plate, cover body top is uneven, the utility model discloses a press -mounting rod is set up in four corners of lifting plate, makes four press -mounting rod bottom end respectively and abuts cover body top four corners, realizes the synchronous, even pressure of cover body, need not to replace special press -mounting part to satisfy the press -mounting demand of multiple specifications oil guide cover, the versatility and adaptability of equipment are greatly promoted, reduce production change cost.
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Description

Technical Field

[0001] This utility model relates to the field of oil guide cover press-fitting technology, and in particular to a gearbox end cover oil guide cover press-fitting machine. Background Technology

[0002] During the production and assembly of a transmission, the transmission end cover oil guide cover is a key component that ensures the circulation path of lubricating oil inside the transmission, prevents oil leakage, and optimizes lubrication efficiency. The pressing accuracy of the oil guide cover with the end cover directly determines the sealing performance and service life of the transmission. Therefore, the pressing process of the oil guide cover has extremely high requirements.

[0003] In the prior art, the pressing equipment for the oil guide cover of the gearbox end cover mostly adopts a structural design of single pressure bar centering pressure or double pressure bar symmetrical pressure. However, in order to adapt to the internal space of the gearbox, the top of the oil guide cover is often an irregular structure with non-flat surface (such as local protrusions or depressions). This kind of traditional pressing method cannot achieve synchronous and uniform pressure on the four corners of the top of the oil guide cover. Either the concentrated force will cause local deformation and cracking of the cover, or the deviation of the pressure point will cause uneven assembly gap between the oil guide cover and the end cover, which will lead to oil leakage problems and seriously affect the pressing quality. Therefore, this application proposes a gearbox end cover oil guide cover pressing machine. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a gearbox end cover oil guide cover press-fitting machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gearbox end cover oil guide cover press-fitting machine, comprising:

[0006] The main body has a base in the lower half and an inverted L-shaped support frame in the upper half, with the support frame installed on the rear side of the top of the base.

[0007] The lifting plate is located between the base and the horizontal part of the support frame, and through holes are provided at the four corners of the lifting plate.

[0008] Four press-fit rods are provided and are respectively inserted into four through holes;

[0009] The locking mechanism is installed inside the lifting plate and can be engaged with the four pressing rods for limiting.

[0010] The cover is located above the base and between the lifting plate. The top of the cover is uneven, and the bottom ends of the four pressing rods abut against the four corners of the top of the cover.

[0011] Optionally, a rod groove is provided at the center of the top of the lifting plate, and four inner grooves are provided on the inner wall of the rod groove. The bottom of the inner end of each of the four inner grooves is provided with a plate groove that communicates with the corresponding through hole. The locking mechanism is provided between the rod groove and the four inner grooves and the four plate grooves.

[0012] Optionally, the locking mechanism includes a sleeve and four sets of linkage components. A fixing post is installed at the center of the bottom of the rod groove. A groove is opened at the bottom of the sleeve to fit on the fixing post. The four sets of linkage components are all installed on the side wall of the sleeve, and the four sets of linkage components are respectively located in the four inner grooves and the corresponding plate grooves.

[0013] Optionally, the linkage assembly includes a limiting plate, a first fixing member, a connecting rod, and a second fixing member. The limiting plate is movably inserted into the plate groove. The first fixing member is installed at one end of the limiting plate near the inner groove. The second fixing member is fixedly installed on the outer wall of the sleeve. The two ends of the connecting rod are respectively hinged to the first fixing member and the second fixing member.

[0014] Optionally, the end of the limiting plate near the through hole is set to be arc-shaped, and a limiting plate is fixedly installed at the arc-shaped end of the limiting plate. Each pressing rod has several equally spaced slots on its side wall. The limiting plate can be engaged in one of the slots on the side wall of the pressing rod. The top of the limiting plate has a sliding groove, and the top of the plate groove has three ball grooves. Each ball groove is provided with a rotatable ball, and the bottom of each ball is located in the sliding groove at the top of the corresponding limiting plate.

[0015] Optionally, the side wall of the fixed column is provided with a groove, and a limiting rod that is inserted through the groove is fixedly installed on the inner wall of the groove at the bottom of the sleeve.

[0016] Optionally, a top plate is provided above the lifting platform. Support rods are installed between the center of the four sides of the top of the lifting platform and the bottom of the top plate. A second hydraulic rod is installed at the center of the bottom of the top plate. The telescopic end of the second hydraulic rod is fixedly connected to the top of the sleeve. A first hydraulic rod is fixedly installed at the top of the horizontal part of the support frame, and the telescopic end of the first hydraulic rod passes through the support frame and is fixedly connected to the top of the top plate.

[0017] Optionally, vertical positioning rods are installed between the two corners at the top rear end of the base and the horizontal part of the support frame. Connecting plates are fixedly connected to the two corners at the rear end of the lifting plate. Positioning holes are opened at the ends of the two connecting plates away from the lifting plate, and the positioning holes at the ends of the two connecting plates are respectively fitted onto the two positioning rods.

[0018] The beneficial effects of this utility model are:

[0019] By setting pressure rods at the four corners of the lifting plate, the bottom ends of the four pressure rods abut against the four corners of the top of the cover, so as to achieve synchronous and uniform pressure on the cover. This can effectively avoid local deformation and cracking of the cover caused by concentrated force, and at the same time eliminate the problem of uneven assembly gap between the oil guide cover and the end cover caused by the deviation of the pressure point. This reduces the risk of oil leakage from the root and ensures the sealing performance and service life of the gearbox.

[0020] The locking mechanism inside the lifting plate, namely the sleeve, drives the four sets of linkage components to move, so that the limiting plate of the limiting plate engages with different slots on the side wall of the pressing rod. The length of a single pressing rod extending out of the lifting plate can be precisely adjusted. This design can be specifically adapted to the top structure of the oil guide cover with different degrees of unevenness (local bulges, depressions). It can meet the pressing needs of various specifications of oil guide covers without replacing special pressing parts, greatly improving the versatility and adaptability of the equipment and reducing production changeover costs. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the lifting plate and the cover of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection between the lifting plate and the top plate of this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram showing the connection between the lifting plate, locking mechanism, and pressing rod of this utility model;

[0026] Figure 5 This is a cross-sectional structural diagram of the lifting plate of this utility model;

[0027] Figure 6 This is a schematic diagram of the connection between the locking mechanism and the pressing rod of this utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the limiting plate of this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the cover of this utility model;

[0030] In the picture:

[0031] 11. Base; 12. Support frame; 13. Positioning rod; 14. First hydraulic rod;

[0032] 21. Lifting plate; 22. Connecting plate; 23. Fixed column; 24. Linkage assembly; 25. Pressing rod; 26. Sleeve; 27. Ball bearing; 28. Second hydraulic rod;

[0033] 211. Through hole; 212. Rod groove; 213. Inner groove; 214. Plate groove; 215. Ball groove;

[0034] 221. Positioning hole;

[0035] 231. Groove;

[0036] 241. Limiting plate; 242. First fixing component; 243. Connecting rod; 244. Second fixing component;

[0037] 2411. Slide groove; 2412. Limiting plate;

[0038] 251. Card slot;

[0039] 261. Groove; 262. Limiting rod;

[0040] 3. Cover;

[0041] 41. Top plate; 42. Support rod. Detailed Implementation

[0042] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0043] Please see Figures 1-8 This utility model provides a technical solution: a gearbox end cover oil guide cover press-fitting machine, comprising a main body, the lower half of which is a base 11, and the upper half of which is an inverted L-shaped support frame 12, with the support frame 12 installed on the rear side of the top of the base 11; a lifting plate 21 is provided between the horizontal and vertical parts of the base 11 and the support frame 12, and through holes 211 are provided at the four corners of the lifting plate 21, with press-fitting rods 25 inserted into each of the four through holes 211; a locking mechanism is installed in the lifting plate 21, and the locking mechanism can engage with the four press-fitting rods 25. The limit locking mechanism is applied, with the cover 3 positioned between the base 11 and the lifting plate 21. The top of the cover 3 is uneven, and the bottom ends of the four pressing rods 25 are respectively placed against the four corners of the top of the cover 3, allowing the four pressing rods 25 to accurately abut against the four corners of the top of the cover 3. This achieves synchronous and uniform pressure on the irregularly shaped cover 3, fundamentally avoiding deformation and cracking of the cover 3 caused by concentrated force, as well as uneven assembly gaps and oil leakage caused by deviations in the pressure application points. This ensures the sealing performance and service life of the gearbox, and also lays the foundation for the subsequent installation of locking mechanisms and auxiliary structures.

[0044] like Figure 4 and Figure 5As shown, a rod groove 212 is provided at the center of the top of the lifting plate 21. Four inner grooves 213 are provided on the inner wall of the rod groove 212. The bottom of the inner end of each of the four inner grooves 213 is provided with a plate groove 214 that communicates with the corresponding through hole 211. The locking mechanism is set between the rod groove 212 and the four inner grooves 213 and the four plate grooves 214. The rod groove 212 is adapted to the sleeve 26 in the locking mechanism. The inner grooves 213 and the plate grooves 214 provide a movement channel for the linkage component 24. This avoids the locking mechanism from occupying the external space of the lifting plate 21 and ensures that the locking mechanism is directly connected to the pressing rod 25. This provides structural support for the subsequent precise control of the pressing rod 25 through the locking mechanism, ensuring that the overall device layout is reasonable and the transmission path is short.

[0045] like Figure 4 , Figure 5 and Figure 6 As shown, the locking mechanism includes a sleeve 26 and four sets of linkage components 24. A fixed post 23 is installed at the center of the bottom of the rod groove 212. The bottom of the sleeve 26 has a groove 261 that fits onto the fixed post 23. The four sets of linkage components 24 are all installed on the side wall of the sleeve 26, and the four sets of linkage components 24 are respectively located in the four inner grooves 213 and the corresponding plate grooves 214. The movement direction of the sleeve 26 is restricted by the cooperation between the fixed post 23 and the groove 261 at the bottom of the sleeve 26, so as to realize the synchronous linkage control of the locking mechanism. When the sleeve 26 moves up and down along the fixed post 23, it can synchronously drive the four sets of linkage components 24 to move, avoiding the inconsistency caused by the independent operation of a single set of linkage components 24, and ensuring that the four pressing rods 25 can be locked or unlocked at the same time. At the same time, the cooperation structure between the fixed post 23 and the sleeve 26 is simple and reliable, which can prevent the sleeve 26 from deviating, further improving the stability and accuracy of the locking mechanism, and adapting to the needs of synchronous control of multiple pressing rods 25.

[0046] like Figure 4 and Figure 6 As shown, the linkage assembly 24 includes a limiting plate 241, a first fixing member 242, a connecting rod 243, and a second fixing member 244. The limiting plate 241 is movably inserted into the plate groove 214. The first fixing member 242 is installed at one end of the limiting plate 241 near the inner groove 213. The second fixing member 244 is fixedly installed on the outer wall of the sleeve 26. The two ends of the connecting rod 243 are respectively hinged to the first fixing member 242 and the second fixing member 244. The linkage assembly 243 is connected to the first fixing member 242 and the second fixing member 244 through the limiting plate 241, the first fixing member 242, and the second fixing member 244. The component 244 and the hinged connecting rod 243 constitute the linkage assembly 24, which converts the linear motion of the sleeve 26 into the lateral motion of the limiting plate 241 (approaching / moving away from the pressing rod 25), thereby achieving the limiting and locking of the pressing rod 25. The transmission structure is simple and efficient, and the hinged design can reduce motion loss and ensure accurate power transmission. In addition, the limiting plate 241 is movably inserted into the plate groove 214, which can limit the movement trajectory of the limiting plate 241, avoid the limiting plate 241 from shaking and causing locking deviation, and ensure the locking effect.

[0047] like Figure 4 , Figure 5 and Figure 7 As shown, the end of the limiting plate 241 near the through hole 211 is set in an arc shape. A limiting plate 2412 is fixedly installed at the arc-shaped end of the limiting plate 241. Each pressing rod 25 has several equally spaced slots 251 on its side wall. The limiting plate 2412 can be engaged in one of the slots 251 on the side wall of the pressing rod 25. The top of the limiting plate 241 has a sliding groove 2411. The top of the plate groove 214 has three ball grooves 215. Each ball groove 215 is provided with a rotatable ball 27. The bottom end of each ball 27 is located in the sliding groove 2411 at the top of the corresponding limiting plate 241. The limiting plate 241 is connected to the pressing rod 25 by the limiting plate 241 at its arc end. The combination of the side wall slot 251 of the rod 25 and the design of the ball bearing 27 and the slide 2411 optimizes the locking and adjustment effects. The rounded end facilitates smooth docking between the limiting plate 241 and the pressing rod 25, avoiding jamming. Multiple sets of equidistant slots 251 cooperate with the limiting plate 2412 to precisely adjust the length of the pressing rod 25 extending out of the lifting plate 21, adapting to the top structure of the cover 3 with different degrees of unevenness. The combination of the ball bearing 27 and the slide 2411 transforms the sliding friction of the limiting plate 241 into rolling friction, greatly reducing component wear and extending service life. At the same time, it makes the movement of the limiting plate 241 smoother, ensuring that the length adjustment and locking actions are more effortless and precise, improving the ease of operation and durability of the equipment.

[0048] like Figure 5 and Figure 6 As shown, the side wall of the fixed column 23 has a slot 231. The inner wall of the groove 261 at the bottom of the sleeve 26 is fixedly installed with a limiting rod 262 that is inserted into the slot 231. Through the insertion and cooperation of the slot 231 and the limiting rod 262, the rotational freedom of the sleeve 26 can be restricted, preventing the sleeve 26 from rotating around the axis when it moves up and down along the fixed column 23. This ensures that the four sets of linkage components 24 on the side wall of the sleeve 26 always correspond to the inner groove 213 and the plate groove 214 of the lifting plate 21, preventing the linkage components 24 from being misaligned due to the rotation of the sleeve 26 and failing to act accurately on the pressing rod 25. This ensures the consistency and accuracy of the locking mechanism's action and improves the reliability of the equipment operation.

[0049] like Figure 1 and Figure 3As shown, a top plate 41 is provided above the lifting plate 21. Support rods 42 are installed between the center of the four sides of the top of the lifting plate 21 and the bottom of the top plate 41. A second hydraulic rod 28 is installed at the center of the bottom of the top plate 41. The telescopic end of the second hydraulic rod 28 is fixedly connected to the top of the sleeve 26. A first hydraulic rod 14 is fixedly installed at the top of the horizontal part of the support frame 12, and the telescopic end of the first hydraulic rod 14 passes through the support frame 12 and is fixedly connected to the top of the top plate 41. The first hydraulic rod 14 drives the top plate 41 and the lifting plate 21 to lift as a whole, providing stable pressing power and ensuring that the pressing force is evenly applied to the cover 3. The second hydraulic rod 28 precisely controls the up and down movement of the sleeve 26 to realize the locking / unlocking of the locking mechanism and reduce human operation error. At the same time, the support rods 42 connect the lifting plate 21 and the top plate 41 to ensure that the top plate 41 is evenly stressed and avoids tilting during lifting, further improving the pressing accuracy and operating efficiency, and adapting to the needs of industrial mass production.

[0050] like Figure 1 and Figure 2 As shown, vertical positioning rods 13 are installed between the two corners at the top rear end of the base 11 and the horizontal part of the support frame 12. Connecting plates 22 are fixedly connected to the two corners at the rear end of the lifting plate 21. Positioning holes 221 are opened at the ends of the two connecting plates 22 away from the lifting plate 21. The positioning holes 221 at the ends of the two connecting plates 22 are respectively fitted onto the two positioning rods 13. The cooperation between the positioning rods 13 and the connecting plates 22 can limit the lifting trajectory of the lifting plate 21, ensuring that the lifting plate 21 can only move vertically up and down along the positioning rods 13. This avoids the lifting plate 21 from shifting left or right or forward or backward due to uneven force during the pressing process. This ensures that the four pressing rods 25 are always accurately aligned with the four corners at the top of the cover 3, preventing the deviation of the pressure point caused by the offset of the lifting plate 21, further improving the pressing accuracy, avoiding assembly defects, and improving the overall stability of the equipment.

[0051] Working principle: Place the gearbox on the base 11 and position the cover 3 at the end cover of the gearbox, ensuring that the four corners of the top of the cover 3 correspond to the positions of the four pressing rods 25 below the lifting plate 21. First, control the first hydraulic rod to push the lifting plate 21 down, so that the pressing rods 25 at the four corners of the lifting plate 21 contact the top of the cover 3, and the four pressing rods 25 extend to different lengths according to the different horizontal heights of the top of the cover 3. Then, control the second hydraulic rod 28 to push the pushing sleeve 26 down, and push the limiting plate 241 through the connecting rod 243. The limiting plate 2412 is engaged in the slot 251 of the pressing rod 25, thereby locking the four pressing rods 25. Then, the first hydraulic rod 14 on the support frame 12 is activated, and its telescopic end pushes the top plate 41. Through the support rod 42, the lifting plate 21 moves down along the positioning rod 13. The bottom ends of the four pressing rods 25 simultaneously abut against the four corners of the top of the cover 3 and apply pressure evenly, pressing the cover 3 onto the gearbox end cover. After pressing is completed, the first hydraulic rod 14 drives the lifting plate 21 to reset, and the second hydraulic rod 28 unlocks the pressing rods 25, removing the workpiece to complete one cycle.

[0052] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gearbox end cover oil guide cover press fitting machine, characterized in that, include: The main body has a base (11) in the lower half and an inverted L-shaped support frame (12) in the upper half, with the support frame (12) installed on the rear side of the top of the base (11). The lifting plate (21) is located between the base (11) and the horizontal part of the support frame (12). A through hole (211) is provided at each of the four corners of the lifting plate (21). Four press rods (25) are provided and are respectively inserted into four through holes (211); The locking mechanism is installed inside the lifting plate (21), and the locking mechanism can be engaged with the four pressing rods (25) for limiting; The cover (3) is located above the base (11) and between the lifting plate (21). The top of the cover (3) is uneven, and the bottom ends of the four pressing rods (25) are respectively placed at the four corners of the top of the cover (3).

2. The gearbox end cover oil guide cover press fitting machine according to claim 1, characterized in that, A rod groove (212) is provided at the center of the top of the lifting plate (21). Four inner grooves (213) are provided on the inner wall of the rod groove (212). The bottom of the inner end of each of the four inner grooves (213) is provided with a plate groove (214) that communicates with the corresponding through hole (211). The locking mechanism is provided between the rod groove (212) and the four inner grooves (213) and the four plate grooves (214).

3. The gearbox end cover oil guide cover press fitting machine according to claim 2, characterized in that, The locking mechanism includes a sleeve (26) and four sets of linkage components (24). A fixing post (23) is installed at the center of the bottom of the rod groove (212). The bottom of the sleeve (26) has a groove (261) that fits on the fixing post (23). The four sets of linkage components (24) are all installed on the side wall of the sleeve (26), and the four sets of linkage components (24) are respectively located in the four inner grooves (213) and the corresponding plate grooves (214).

4. The gearbox end cover oil guide cover press fitting machine according to claim 3, characterized in that, The linkage component (24) includes a limiting plate (241), a first fixing member (242), a connecting rod (243), and a second fixing member (244). The limiting plate (241) is movably inserted into the plate groove (214). The first fixing member (242) is installed at one end of the limiting plate (241) near the inner groove (213). The second fixing member (244) is fixedly installed on the outer wall of the sleeve (26). The two ends of the connecting rod (243) are respectively hinged to the first fixing member (242) and the second fixing member (244).

5. The gearbox end cover oil guide cover press fitting machine according to claim 4, characterized in that, The end of the limiting plate (241) near the through hole (211) is set in an arc shape. A limiting plate (2412) is fixedly installed at the arc-shaped end of the limiting plate (241). Each pressing rod (25) has several equally spaced slots (251) on its side wall. The limiting plate (2412) can be engaged in one of the slots (251) on the side wall of the pressing rod (25). The top of the limiting plate (241) has a sliding groove (2411). The top of the plate groove (214) has three ball grooves (215). Each ball groove (215) has a rotatable ball (27). The bottom of each ball (27) is located in the sliding groove (2411) at the top of the corresponding limiting plate (241).

6. The gearbox end cover oil guide cover press fitting machine according to claim 3, characterized in that, The side wall of the fixed column (23) is provided with a slot (231), and a limiting rod (262) that is inserted through the slot (231) is fixedly installed on the inner wall of the bottom groove (261) of the sleeve (26).

7. A press-fitting machine for a gearbox end cover oil guide cover according to claim 1, characterized in that, A top plate (41) is provided above the lifting plate (21). Support rods (42) are installed between the center of the four sides of the top of the lifting plate (21) and the bottom of the top plate (41). A second hydraulic rod (28) is installed at the center of the bottom of the top plate (41). The telescopic end of the second hydraulic rod (28) is fixedly connected to the top of the sleeve (26). A first hydraulic rod (14) is fixedly installed at the top of the horizontal part of the support frame (12), and the telescopic end of the first hydraulic rod (14) passes through the support frame (12) and is fixedly connected to the top of the top plate (41).

8. The gearbox end cover oil guide cover press fitting machine according to claim 1, characterized in that, Vertical positioning rods (13) are installed between the two corners at the top rear end of the base (11) and the horizontal part of the support frame (12). Connecting plates (22) are fixedly connected to the two corners at the rear end of the lifting plate (21). Positioning holes (221) are opened at the ends of the two connecting plates (22) away from the lifting plate (21), and the positioning holes (221) at the ends of the two connecting plates (22) are respectively fitted onto the two positioning rods (13).