Round rod gear shaping mechanism

Abstract

The utility model discloses a round rod gear shaping mechanism which comprises a horizontal reciprocating mechanism. The gear shaping assembly is arranged at the moving tail end of the horizontal reciprocating mechanism; the horizontal telescopic assembly is arranged under the horizontal reciprocating mechanism; the movable end of the inclined pushing lifting mechanism is connected with the telescopic end of the horizontal telescopic assembly; the opening and closing control clamping assembly is arranged on the inclined pushing lifting mechanism, and the opening and closing area of the opening and closing control clamping assembly is located under the gear shaping assembly; the positioning auxiliary assemblies are arranged on the opening and closing control clamping assembly and located on the two sides of the opening and closing area of the opening and closing control clamping assembly. According to the gear shaping device, the gear shaping mode can be rapidly adjusted and changed, and the clamping requirements of different products can be met.

Description

Technical Field

[0001] The utility model relates to the field of processing equipment, in particular to a round rod gear shaping mechanism. Background Art

[0002] Solid round rods are commonly used mechanical parts. When the surface needs to be geared, gear-forming equipment is needed to perform gear-forming on the surface. However, the gear-forming components and mold-closing structures of current gear-forming equipment are relatively fixed and are generally customized products. However, for enterprise production, the weight and model of the products produced will change with the market and the requirements of Party A. Fixed gear-forming components and mold-closing structures will not be conducive to enterprises to quickly make parts that meet market demand. More time is needed to adjust the equipment, which affects production efficiency. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a round rod gear-slotting mechanism, which can quickly adjust and change the gear-slotting mode and meet the clamping requirements of different products.

[0004] The purpose of the utility model is achieved through such technical solution:

[0005] A round rod gear shaping mechanism, comprising:

[0006] Horizontal reciprocating mechanism;

[0007] A gear inserting assembly is arranged at the moving end of the horizontal reciprocating mechanism;

[0008] A horizontal telescopic assembly is arranged directly below the horizontal reciprocating mechanism;

[0009] The movable end of the oblique push lifting mechanism is connected to the telescopic end of the horizontal telescopic assembly;

[0010] The opening and closing control clamping assembly is arranged on the oblique push lifting mechanism, and its opening and closing area is located directly below the gear inserting assembly;

[0011] A positioning auxiliary component is arranged on the opening and closing control clamping component and is located on both sides of the opening and closing area of ​​the opening and closing control clamping component;

[0012] The gear inserting assembly comprises:

[0013] A gear inserting seat, the head end of which is fixedly connected to the moving end of the horizontal reciprocating mechanism, and the tail end is provided with a dovetail tenon, the axis of which is perpendicular to the moving direction of the horizontal reciprocating mechanism;

[0014] The gear inserting block has a dovetail groove matching the dovetail tenon of the gear inserting seat at the head end and a plurality of notched grooves penetrating up and down at the tail end;

[0015] The shaft rod passes through all the notches, and both ends are limited on the toothing block through sealing plates;

[0016] A plurality of toothed wheels are mounted on the shaft and are located in the notched grooves;

[0017] The limit block has one end fixedly connected to the moving end of the horizontal reciprocating mechanism, and the other end fixedly connected to the toothing block through a screw.

[0018] Furthermore, the horizontal reciprocating mechanism comprises:

[0019] Drive motor;

[0020] The input shaft of the reduction box is connected to the driving motor through a belt;

[0021] An output wheel connected to an output shaft of the reduction gearbox;

[0022] An eccentric column is arranged on the output wheel, and its axis is misaligned with the axis of the output shaft of the reduction box;

[0023] Connecting rod, the rotating outer sleeve of the head end is on the eccentric column;

[0024] The base has a horizontal slide rail at the upper end, and the axis of the horizontal slide rail is perpendicular to the axis of the output shaft of the output and reduction box;

[0025] The top plate has a slider matched with a horizontal slide rail on its lower surface, and the top plate is slidably arranged on the base; the top plate is hinged to the tail end of the connecting rod, and the driving motor rotates to drive the top plate to reciprocate horizontally on the base; the gear inserting mechanism is arranged at the end of the top plate.

[0026] Furthermore, the horizontal telescopic component includes:

[0027] The oil cylinder is horizontally arranged, and its axis is parallel to the movement direction of the horizontal reciprocating mechanism;

[0028] The horizontal sliding mechanism is arranged in front of the oil cylinder and is located directly below the tooth inserting assembly; the moving end of the horizontal sliding mechanism is connected to the telescopic end of the oil cylinder; the upper surface of the telescopic end of the horizontal sliding mechanism is an inclined plane; the extension line of the normal line of the inclined plane points directly below the oil cylinder.

[0029] Furthermore, the oblique push lifting mechanism comprises:

[0030] An inclined plane slide rail assembly is arranged on the inclined plane of the moving end of the horizontal sliding mechanism; the sliding direction of the inclined plane slide rail assembly is coplanar with the sliding direction of the horizontal sliding mechanism;

[0031] A base, disposed on the moving end of the inclined slide rail assembly;

[0032] Vertical guide components are arranged on both sides of the base to guide and limit the up and down movement of the base;

[0033] The limit assembly is arranged in front of the inclined slide rail assembly and abuts against the end of the base to limit the base from moving in the moving direction of the horizontal sliding mechanism.

[0034] Furthermore, the vertical guide assembly comprises:

[0035] Two fixing seats are respectively arranged on two sides of the base;

[0036] Four guide columns are respectively arranged vertically on two fixing seats, with the lower ends fixedly connected to the fixing seats and the upper ends passing through the base through the inner sleeve.

[0037] Furthermore, the limiting component comprises:

[0038] A limit seat is arranged in front of the inclined slide rail assembly, and a strip groove is arranged on the upper surface of the limit seat;

[0039] The push slide plate is inserted into the strip groove;

[0040] The top block is arranged on the base and faces the board surface of the push slide plate.

[0041] Furthermore, the opening and closing control clamping assembly comprises:

[0042] A bottom plate, arranged on the base;

[0043] The left mold is located directly above the bottom plate, with the head end vertically embedded on the base and the tail end surface provided with a mold surface;

[0044] The electric cylinder is arranged on the base and faces the gear shaping assembly;

[0045] The right mold base is arranged on the bottom plate and connected to the telescopic end of the electric cylinder;

[0046] The right mold is located just above the bottom plate, with its head end vertically embedded on the right mold base, and a matching surface is provided on its tail end surface.

[0047] Furthermore, a notch is provided in the middle of the base; the bottom plate is arranged on the upper end surface of the notch to close the notch; baffles are provided on both sides of the bottom plate, which are connected to the base to limit the bottom plate; the left mold, right mold base, and right mold are arranged in a space surrounded by two baffles and the bottom plate; the two sides of the right mold base are against the inner sides of the two baffles.

[0048] Furthermore, a vertically penetrating C-shaped groove is provided on the base and the right mold base, and the front ends of the left mold and the right mold are provided with a snap-in protrusion matching the C-shaped groove; a pressure plate is provided on the baffle, and the lower plate surface of the pressure plate contacts the surface of the left and right molds of the right mold; the base and the right mold base are both provided with a stop plate that closes the upper part of the C-shaped groove.

[0049] Furthermore, the positioning auxiliary component includes:

[0050] The auxiliary block is arranged on the outer side of the baffle and is provided with a C-shaped groove along the length direction of the baffle;

[0051] Auxiliary rod, the head end of which is connected to the auxiliary block by bolts, and the tail end of which is located above the baffle;

[0052] The positioning head is arranged on the auxiliary rod.

[0053] By adopting the above technical solution, the utility model has the following advantages:

[0054] 1. The gear inserting assembly and the opening and closing control clamping assembly are arranged in a detachable connection mode with the overall structure, so that different gear inserting assemblies and opening and closing control clamping assemblies can be quickly replaced to realize gear inserting processing for different products, thereby improving production efficiency.

[0055] 2. A positioning auxiliary component is provided to play a role of positioning restriction for the clamping of the round rod-shaped structure, making the clamping more stable and reducing the situation in which the round rod part rotates due to the squeezing force of the gear during the gear shaping process, resulting in gear shaping failure.

[0056] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The accompanying drawings of the present utility model are as follows:

[0058] Figure 1 Schematic diagram of the three-dimensional structure of the round rod gear-slotting mechanism in the embodiment.

[0059] Figure 2 Schematic diagram of the front view of the round rod gear-slotting mechanism in the embodiment.

[0060] Figure 3 for Figure 2 Schematic diagram of the structure at the AA section.

[0061] Figure 4 for Figure 3 Enlarged structural diagram at B in the middle.

[0062] Figure 5 Schematic diagram of the top view of the round rod gear-slotting mechanism in the embodiment.

[0063] Figure 6 for Figure 5 Schematic diagram of the structure at the CC section.

[0064] Figure 7 for Figure 6 Enlarged structural diagram at point D in the middle.

[0065] Figure 8 for Figure 5 Schematic diagram of the EE section structure.

[0066] Fig. 9 for Figure 8 Enlarged structural diagram at F in the middle.

[0067] Fig.10 for Fig. 9 Enlarged structural diagram at G in the middle.

[0068] In the figure: 11. driving motor; 12. reduction box; 13. output wheel; 14. eccentric column; 15. connecting rod; 16. base; 17. top plate; 21. gear slotting seat; 22. gear slotting block; 23. gear slotting; 24. sealing plate; 25. limit block; 26. shaft; 31. cylinder; 32. horizontal sliding mechanism; 41. inclined slide rail assembly; 42. base; 421. notch; 431. fixed seat; 432. guide column; 441. limit seat; 442. push slide plate; 443. top block; 51. bottom plate; 52. left mold; 53. electric cylinder; 54. right mold base; 55. right mold; 56. baffle; 57. stop plate; 61. auxiliary block; 62. auxiliary rod; 63. positioning head; 7. round rod. DETAILED DESCRIPTION

[0069] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0070] Example:

[0071] like Figures 1 to 10 As shown, a round rod 7 gear inserting mechanism includes:

[0072] Horizontal reciprocating mechanism;

[0073] A gear inserting assembly is arranged at the moving end of the horizontal reciprocating mechanism;

[0074] A horizontal telescopic assembly is arranged directly below the horizontal reciprocating mechanism;

[0075] The movable end of the oblique push lifting mechanism is connected to the telescopic end of the horizontal telescopic assembly;

[0076] The opening and closing control clamping assembly is arranged on the oblique push lifting mechanism, and its opening and closing area is located directly below the gear inserting assembly;

[0077] A positioning auxiliary component is arranged on the opening and closing control clamping component and is located on both sides of the opening and closing area of ​​the opening and closing control clamping component;

[0078] The gear inserting assembly comprises:

[0079] The gear inserting seat 21 has a head end fixedly connected to the moving end of the horizontal reciprocating mechanism, and a dovetail tenon is provided at the tail end, and the axis of the dovetail tenon is perpendicular to the moving direction of the horizontal reciprocating mechanism;

[0080] The gear inserting block 22 has a dovetail groove matching the dovetail tenon of the gear inserting seat 21 at its head end, and a plurality of notched grooves penetrating from top to bottom at its tail end;

[0081] The shaft rod 26 passes through all the notches, and both ends are limited on the toothing block 22 through the sealing plate 24;

[0082] A plurality of insert gears 23 are sleeved on the shaft 26 and located in the notch groove;

[0083] The limit block 25 has one end fixedly connected to the moving end of the horizontal reciprocating mechanism, and the other end fixedly connected to the toothing block 22 via a screw.

[0084] In this embodiment, the horizontal reciprocating mechanism includes:

[0085] Driving motor 11;

[0086] The input shaft of the reduction box 12 is connected to the driving motor 11 through a belt;

[0087] The output wheel 13 is connected to the output shaft of the reduction box 12;

[0088] The eccentric column 14 is arranged on the output wheel 13, and its axis is misaligned with the axis of the output shaft of the reduction box 12;

[0089] The connecting rod 15, the head end of which is rotatable, is mounted on the eccentric column 14;

[0090] The base 16 has a horizontal slide rail at its upper end, and the axis of the horizontal slide rail is perpendicular to the axis of the output shaft of the output reduction box 12;

[0091] The top plate 17 has a slider matching the horizontal slide rail on its lower surface, and the top plate 17 is slidably arranged on the base 16; the top plate 17 is hinged to the tail end of the connecting rod 15, and the driving motor 11 rotates to drive the top plate 17 to reciprocate horizontally on the base 16; the gear inserting mechanism is arranged at the end of the top plate 17.

[0092] The low torque of the motor is converted into horizontal propulsion through a simple structure.

[0093] In this embodiment, the horizontal telescopic component includes:

[0094] The oil cylinder 31 is arranged horizontally, and its axis is parallel to the movement direction of the horizontal reciprocating mechanism;

[0095] The horizontal sliding mechanism 32 is arranged in front of the oil cylinder 31 and is located directly below the gear inserting assembly; the moving end of the horizontal sliding mechanism 32 is connected to the telescopic end of the oil cylinder 31; the upper surface of the telescopic end of the horizontal sliding mechanism 32 is an inclined surface; the extension line of the normal line of the inclined surface points to the bottom of the oil cylinder 31.

[0096] In this embodiment, the oblique push lifting mechanism includes:

[0097] The inclined plane slide rail assembly 41 is arranged on the inclined plane of the moving end of the horizontal sliding mechanism 32; the sliding direction of the inclined plane slide rail assembly 41 is coplanar with the sliding direction of the horizontal sliding mechanism 32;

[0098] A base 42 is provided on the moving end of the inclined slide rail assembly 41;

[0099] A vertical guide assembly is provided on both sides of the base 42 to guide and limit the up and down movement of the base 42;

[0100] The limiting assembly is arranged in front of the inclined slide rail assembly 41 and abuts against the end of the base 42 to limit the base 42 from moving along the moving direction of the horizontal sliding mechanism 32 .

[0101] By extending and retracting the oil cylinder 31 , the base 42 is forced to slide on the inclined slide rail assembly 41 , so that the base 42 moves up and down, thus completing the upward feeding of the gear inserting, so that the gear inserting depth of each gear inserting operation can be controlled.

[0102] In this embodiment, the vertical guide assembly includes:

[0103] Two fixing seats 431 are respectively arranged on two sides of the base 42;

[0104] Four guide posts 432 are respectively vertically arranged on the two fixing seats 431 , with their lower ends fixedly connected to the fixing seats 431 and their upper ends inserted through the base 42 .

[0105] In this embodiment, the limit assembly includes:

[0106] The limiting seat 441 is arranged in front of the inclined slide rail assembly 41, and a strip groove is arranged on the upper surface of the limiting seat 441;

[0107] The push slide plate 442 is inserted into the strip groove;

[0108] The top block 443 is arranged on the base 42 and faces the plate surface of the push slide plate 442 .

[0109] The pushing slide plate 442 can limit the force on the base 42 in the horizontal direction, and at the same time, the pushing slide plate 442 can reduce the friction force of the base 42 moving up and down.

[0110] In this embodiment, the opening and closing control clamping assembly includes:

[0111] A bottom plate 51 is disposed on the base 42;

[0112] The left mold 52 is located directly above the bottom plate 51, with its head end vertically embedded on the base 42 and a mating surface provided on its tail end;

[0113] The electric cylinder 53 is arranged on the base 42 and faces the gear inserting assembly;

[0114] The right mold 55 seat 54 is arranged on the bottom plate 51 and connected to the telescopic end of the electric cylinder 53;

[0115] The right mold 55 is located just above the bottom plate 51 , with its head end vertically embedded on the right mold 55 seat 54 , and a mold matching surface is provided on its tail end surface.

[0116] The left mold 52 and the right mold 55 are installed by means of snap-fitting, and can be easily replaced so as to insert teeth for different products.

[0117] In this embodiment, a notch 421 is provided in the middle of the base 42; the bottom plate 51 is arranged on the upper end surface of the notch 421 to close the notch 421; baffles 56 are provided on both sides of the bottom plate 51, which are connected to the base 42 to limit the bottom plate 51; the left mold 52, the right mold 55 seat 54, and the right mold 55 are arranged in a space surrounded by two baffles 56 and the bottom plate 51; the two sides of the right mold 55 seat 54 are against the inner side surfaces of the two baffles 56.

[0118] The notch 421 can realize the insertion of the teeth of the round rod 7 of the U-shaped structure without interference. The baffle 56 can guide and limit the sliding of the right mold 55.

[0119] In this embodiment, a vertically penetrating C-shaped groove is set on the base 42 and the right mold 55 seat 54, and the front ends of the left mold 52 and the right mold 55 are provided with a snap-in protrusion matching the C-shaped groove; a pressure plate is provided on the baffle 56, and the lower plate surface of the pressure plate contacts the surface of the left and right molds 55; the base 42 and the right mold 55 seat 54 are both provided with a stop plate 57 that closes the upper part of the C-shaped groove.

[0120] The C-shaped groove can be used for better fixing and limiting, and the stop plate 57 and the bottom plate 51 can limit the Z-axis direction.

[0121] In this embodiment, the positioning auxiliary component includes:

[0122] The auxiliary block 61 is arranged on the outer side of the baffle 56 and is provided with a C-shaped groove along the length direction of the baffle 56;

[0123] An auxiliary rod 62, the head end of which is connected to the auxiliary block 61 by bolts, and the tail end of which is located above the baffle 56;

[0124] The positioning head 63 is arranged on the auxiliary rod 62 .

[0125] The auxiliary rod 62 can adjust its position on the auxiliary block 61 by bolts, so as to position different products. The positioning head 63 can be a stop surface structure for positioning the product or a structure with holes for limiting the product.

[0126] The round rod 7 gear-slotting mechanism of this embodiment works as follows: according to the gear-slotting component structure and gear-slotting requirements, the left mold 52 and the right mold 55 are selected for installation, and then the gear-slotting block 22 is selected for installation, and its position is adjusted by the limit block 25. According to the product conditions, the appropriate positioning head 63 is selected to adjust the position of the auxiliary rod 62.

[0127] When in use, the electric cylinder 53 is shortened to separate the left mold 52 and the right mold 55, the rods that need to be inserted are placed between the left mold 52 and the right mold 55, and the electric cylinder 53 is controlled to extend to limit the product.

[0128] The drive motor 11 is started, and the inserting gear 23 reciprocates just above the product. Then, the extension of the oil cylinder 31 is controlled to force the base 42 to move upward, so that the product interferes with the inserting gear 23 on the inserting gear block 22. In this way, with the reciprocating motion of the inserting gear 23, the inserting gear is completed on the surface of the product.

[0129] After the show, just reverse the above steps to take out the product.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A round rod gear shaping mechanism, characterized in that: include: Horizontal reciprocating mechanism; A gear inserting assembly is arranged at the moving end of the horizontal reciprocating mechanism; A horizontal telescopic assembly is arranged directly below the horizontal reciprocating mechanism; The movable end of the oblique push lifting mechanism is connected to the telescopic end of the horizontal telescopic assembly; The opening and closing control clamping assembly is arranged on the oblique push lifting mechanism, and its opening and closing area is located directly below the gear inserting assembly; A positioning auxiliary component is arranged on the opening and closing control clamping component and is located on both sides of the opening and closing area of ​​the opening and closing control clamping component; The gear inserting assembly comprises: A gear inserting seat, the head end of which is fixedly connected to the moving end of the horizontal reciprocating mechanism, and the tail end is provided with a dovetail tenon, the axis of which is perpendicular to the moving direction of the horizontal reciprocating mechanism; The gear inserting block has a dovetail groove matching the dovetail tenon of the gear inserting seat at the head end and a plurality of notched grooves penetrating up and down at the tail end; The shaft rod passes through all the notches, and both ends are limited on the toothing block through sealing plates; A plurality of toothed wheels are mounted on the shaft and are located in the notched grooves; The limit block has one end fixedly connected to the moving end of the horizontal reciprocating mechanism, and the other end fixedly connected to the toothing block through a screw.

2. The round rod gear shaping mechanism according to claim 1, characterized in that: The horizontal reciprocating mechanism comprises: Drive motor; The input shaft of the reduction box is connected to the driving motor through a belt; An output wheel connected to an output shaft of the reduction gearbox; An eccentric column is arranged on the output wheel, and its axis is misaligned with the axis of the output shaft of the reduction box; Connecting rod, the rotating outer sleeve of the head end is on the eccentric column; The base has a horizontal slide rail at the upper end, and the axis of the horizontal slide rail is perpendicular to the axis of the output shaft of the output and reduction box; The top plate has a slider matched with a horizontal slide rail on its lower surface, and the top plate is slidably arranged on the base; the top plate is hinged to the tail end of the connecting rod, and the driving motor rotates to drive the top plate to reciprocate horizontally on the base; the gear inserting mechanism is arranged at the end of the top plate.

3. The round rod gear shaping mechanism according to claim 1, characterized in that: The horizontal telescopic component comprises: The oil cylinder is horizontally arranged, and its axis is parallel to the movement direction of the horizontal reciprocating mechanism; The horizontal sliding mechanism is arranged in front of the oil cylinder and is located directly below the tooth inserting assembly; the moving end of the horizontal sliding mechanism is connected to the telescopic end of the oil cylinder; the upper surface of the telescopic end of the horizontal sliding mechanism is an inclined plane; the extension line of the normal line of the inclined plane points directly below the oil cylinder.

4. The round rod gear shaping mechanism according to claim 3, characterized in that: The oblique push lifting mechanism comprises: An inclined plane slide rail assembly is arranged on the inclined plane of the moving end of the horizontal sliding mechanism; the sliding direction of the inclined plane slide rail assembly is coplanar with the sliding direction of the horizontal sliding mechanism; A base, disposed on the moving end of the inclined slide rail assembly; Vertical guide components are arranged on both sides of the base to guide and limit the up and down movement of the base; The limit assembly is arranged in front of the inclined slide rail assembly and abuts against the end of the base to limit the base from moving in the moving direction of the horizontal sliding mechanism.

5. The round rod gear shaping mechanism according to claim 4, characterized in that: The vertical guide assembly comprises: Two fixing seats are respectively arranged on two sides of the base; Four guide columns are respectively arranged vertically on two fixing seats, with the lower ends fixedly connected to the fixing seats and the upper ends passing through the base through the inner sleeve.

6. The round rod gear shaping mechanism according to claim 4, characterized in that: The limiting component comprises: A limit seat is arranged in front of the inclined slide rail assembly, and a strip groove is arranged on the upper surface of the limit seat; The push slide plate is inserted into the strip groove; The top block is arranged on the base and faces the board surface of the push slide plate.

7. The round rod gear shaping mechanism according to claim 4, characterized in that: The opening and closing control clamping assembly comprises: A bottom plate, arranged on the base; The left mold is located directly above the bottom plate, with the head end vertically embedded on the base and the tail end surface provided with a mold surface; The electric cylinder is arranged on the base and faces the gear shaping assembly; The right mold base is arranged on the bottom plate and connected to the telescopic end of the electric cylinder; The right mold is located just above the bottom plate, with its head end vertically embedded on the right mold base, and a matching surface is provided on its tail end surface.

8. The round rod gear shaping mechanism according to claim 7, characterized in that: A notch is provided in the middle of the base; the bottom plate is arranged on the upper end surface of the notch to close the notch; baffles are provided on both sides of the bottom plate, which are connected to the base to limit the bottom plate; the left mold, right mold base and right mold are arranged in a space surrounded by two baffles and the bottom plate; the two sides of the right mold base are against the inner sides of the two baffles.

9. The round rod gear shaping mechanism according to claim 8, characterized in that: The base and the right mold base are provided with vertically penetrating C-shaped grooves, and the front ends of the left mold and the right mold are provided with snap-in protrusions matching the C-shaped grooves; a pressure plate is provided on the baffle, and the lower plate surface of the pressure plate contacts the surfaces of the left and right molds of the right mold; the base and the right mold base are both provided with stop plates that close the upper part of the C-shaped groove.

10. The round rod gear shaping mechanism according to claim 8, characterized in that: The positioning auxiliary component comprises: The auxiliary block is arranged on the outer side of the baffle and is provided with a C-shaped groove along the length direction of the baffle; Auxiliary rod, the head end of which is connected to the auxiliary block by bolts, and the tail end of which is located above the baffle; The positioning head is arranged on the auxiliary rod.

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