A double-direction screwing mechanism with an inner pull rod

Abstract

The utility model discloses a kind of inner pull rod two-way tightening mechanisms, belong to steering system production and manufacturing technical field;Including two parallelly arranged transplanting clamping mechanisms;The transplanting clamping mechanism includes cylinder, connecting rod mechanism, jaw connecting rod, jaw and mechanism frame;The piston rod of the cylinder is connected with jaw by connecting rod mechanism and jaw connecting rod;The jaw connecting rod is hinged on mechanism frame.The utility model drives clamping driving mechanism clamping rack both sides end portion by two cylinders, and rack flat square is clamped by fixed clamping jaw, and after completion rack can be tightened left and right inner pull rod;The utility model structure is simple, and rack can be conveniently and efficiently tightened.

Description

Technical Field

[0001] This utility model relates to the field of steering system manufacturing technology, specifically to a bidirectional tightening mechanism for an inner tie rod. Background Technology

[0002] With the rapid development of new energy vehicles and intelligent driving technology, the steering system, as an important component of automobiles, directly affects driving control and safety, leading to increasingly higher manufacturing and technical requirements for automotive steering systems.

[0003] The manufacturing process of a product is one of the core aspects of manufacturing automotive steering system components, and key mechanisms and structures are the hardware core that ensures the manufacturing process.

[0004] Existing tightening mechanisms suffer from problems such as complex structure, poor tightening effect, and low work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a highly efficient bidirectional tightening mechanism for internal tie rods.

[0006] To solve the above-mentioned technical problems, this utility model provides an internal tie rod bidirectional tightening mechanism, including two parallel transplanting clamping mechanisms;

[0007] The transplanting clamping mechanism includes a cylinder, a linkage mechanism, a gripper linkage, a gripper, and a mechanism frame;

[0008] The piston rod of the cylinder is connected to the gripper via a linkage mechanism and a gripper connecting rod;

[0009] The gripper linkage is hinged to the mechanism frame.

[0010] Preferably, the mechanism frame includes a right fixed plate, a middle connecting plate, a lower connecting plate, a left fixed plate, and an upper connecting plate;

[0011] The right fixing plate and the left fixing plate are arranged vertically and parallel to each other;

[0012] The upper connecting plate, middle connecting plate and lower connecting plate are arranged sequentially from top to bottom, and both ends are fixedly connected to the right fixing plate and the left fixing plate, respectively.

[0013] Preferably, the cylinder is mounted on the upper connecting plate, and the piston rod of the cylinder passes through the upper connecting plate;

[0014] Two through holes are provided on the middle connecting plate;

[0015] A through hole for the lower connecting plate is provided.

[0016] Preferably, the linkage mechanism includes a first link, a second link, and a piston rod connecting plate;

[0017] The piston rod of the cylinder is fixedly connected to the piston rod connecting plate;

[0018] The first and second connecting rods are respectively hinged to the two ends of the piston rod connecting plate via the second and third pins.

[0019] Preferably, the gripper link includes a first gripper link and a second gripper link;

[0020] The tail ends of the first and second connecting rods are respectively hinged to the head ends of the second gripper connecting rod and the first gripper connecting rod via the first pin and the fourth pin.

[0021] Preferably, the first gripper connecting rod and the second gripper connecting rod pass through two through holes in the middle connecting plate, and both pass through through holes in the lower connecting plate;

[0022] The first gripper connecting rod and the second gripper connecting rod are respectively hinged to the inner wall of the through hole of the lower connecting plate through the fifth pin and the sixth pin.

[0023] Both the first and second links are located above the middle connecting plate.

[0024] Preferably, the gripper includes a first gripper, a first chuck, a second gripper, and a second chuck;

[0025] The tail ends of the first gripper connecting rod and the second gripper connecting rod are respectively fixedly connected to the head ends of the first gripper and the second gripper by the first bolt and the second bolt, respectively.

[0026] The tail ends of the first and second grippers are fixedly connected to the first and second chucks, respectively.

[0027] The first and second chucks each have a semi-circular slot on their opposite sides.

[0028] Preferably, it also includes a fixing claw;

[0029] The fixed claw is installed on the lower connecting plate of the mechanism frame of the transplanting clamping mechanism;

[0030] The bottom of the fixed claw is provided with a U-shaped contour groove.

[0031] Preferably, the fixing claw is located on one side of the gripper;

[0032] The U-shaped contour groove and the semi-circular slot are located on the same horizontal plane;

[0033] The width of the U-shaped contour groove is smaller than the diameter of the semi-circular slot.

[0034] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0035] This invention uses two cylinders to drive a clamping mechanism to clamp the two ends of the rack, and a fixing claw holds the rack flat. After completion, the rack can be tightened by tightening the left and right inner pull rods. This invention has a simple structure and can tighten the rack conveniently and efficiently. Attached Figure Description

[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0037] Figure 1 This is a schematic diagram of the structure of a bidirectional tightening mechanism for an internal tie rod according to this utility model;

[0038] Figure 2 This is a structural diagram of the mechanism framework;

[0039] Figure 3 This is a schematic diagram of the clamping drive mechanism;

[0040] Figure 4 This is a schematic diagram of the fixed jaw structure;

[0041] In the picture:

[0042] 1. Cylinder; 2. Linkage Mechanism; 2-1. First Pin; 2-2. First Linkage; 2-3. Second Pin; 2-4. Third Pin; 2-5. Second Linkage; 2-6. Fourth Pin; 3. Gripper Linkage; 3-1. First Gripper Linkage; 3-2. Fifth Pin; 3-3. Sixth Pin; 3-4. Second Gripper Linkage; 4. Gripper; 4-1. First Gripper; 4-2. First Chuck; 4-3. Second Gripper; 4-4. Second Chuck; 5. Mechanism Frame; 5-1. Right Fixed Plate; 5-2. Middle Connecting Plate; 5-3. Lower Connecting Plate; 5-4. Left Fixed Plate; 5-5. Upper Connecting Plate; 9. Fixed Gripper; 9-1. Pin; 9-2. U-shaped Contour Groove; 9-3. Third Bolt; 12. Locking Nut; 12-1. First Bolt; 12-2. Second Bolt. Detailed Implementation

[0043] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of this specification. The singular forms “a,” “described,” and “the” as used in one or more embodiments of this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0045] It should be understood that although the terms first, second, etc., may be used to describe various information in one or more embodiments of this specification, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this specification, and similarly, second may also be referred to as first. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0046] The present invention will now be described in further detail with reference to the accompanying drawings:

[0047] This utility model provides a bidirectional tightening mechanism for an inner tie rod, comprising two parallel transplanting clamping mechanisms;

[0048] The transplanting clamping mechanism includes a cylinder 1, a connecting rod mechanism 2, a gripper connecting rod 3, a gripper 4, and a mechanism frame 5;

[0049] The piston rod of the cylinder 1 is connected to the gripper 4 through the connecting rod mechanism 2 and the gripper connecting rod 3;

[0050] The gripper link 3 is hinged to the mechanism frame 5.

[0051] Preferably, the mechanism frame 5 includes a right fixed plate 5-1, a middle connecting plate 5-2, a lower connecting plate 5-3, a left fixed plate 5-4, and an upper connecting plate 5-5;

[0052] The right fixing plate 5-1 and the left fixing plate 5-4 are arranged vertically and parallel to each other.

[0053] The upper connecting plate 5-5, the middle connecting plate 5-2 and the lower connecting plate 5-3 are arranged sequentially from top to bottom, and both ends are fixedly connected to the right fixing plate 5-1 and the left fixing plate 5-4 respectively.

[0054] Preferably, the cylinder 1 is mounted on the upper connecting plate 5-5, and the piston rod of the cylinder 1 passes through the upper connecting plate 5-5;

[0055] Two through holes are provided on the middle connecting plate 5-2;

[0056] A through hole for the lower connecting plate 5-3 is provided.

[0057] Preferably, the linkage mechanism 2 includes a first link 2-2, a second link 2-5, and a piston rod connecting plate;

[0058] The piston rod of the cylinder 1 is fixedly connected to the piston rod connecting plate; the piston rod of the cylinder 1 drives the connecting rod mechanism 2 and the gripper connecting rod 3 to move through the piston rod connecting plate.

[0059] The first connecting rod 2-2 and the first connecting rod 2-5 are respectively hinged to the two ends of the piston rod connecting plate through the second pin 2-3 and the third pin 2-4.

[0060] Preferably, the gripper link 3 includes a first gripper link 3-1 and a second gripper link 3-4;

[0061] The tail ends of the first connecting rod 2-2 and the second connecting rod 2-5 are respectively hinged to the head ends of the second gripper connecting rod 3-4 and the first gripper connecting rod 3-1 via the first pin 2-1 and the fourth pin 2-6.

[0062] Preferably, the first gripper link 3-1 and the second gripper link 3-4 pass through two through holes in the middle connecting plate, and both pass through through holes in the lower connecting plate;

[0063] The first gripper connecting rod 3-1 and the second gripper connecting rod 3-4 are respectively hinged to the inner side wall of the through hole of the lower connecting plate 5-3 through the fifth pin 3-2 and the sixth pin 3-3.

[0064] The first link 2-2 and the second link 2-5 are both located above the middle connecting plate 5-2.

[0065] Preferably, the gripper 4 includes a first gripper 4-1, a first chuck 4-2, a second gripper 4-3, and a second chuck 4-4;

[0066] The tail ends of the first gripper link 3-1 and the second gripper link 3-4 are respectively fixedly connected to the head ends of the first gripper 4-1 and the second gripper 4-3 by the first bolt 12-1 and the second bolt 12-2.

[0067] The tail ends of the first gripper 4-1 and the second gripper 4-3 are respectively fixedly connected to the first chuck 4-2 and the second chuck 4-4;

[0068] The first chuck 4-2 and the second chuck 4-4 each have a semi-circular groove on their opposite sides.

[0069] Preferably, it further includes a fixing claw 9; the fixing claw 9 is mounted on one of the transplanting clamping mechanisms;

[0070] The fixed claw 9 is installed on the lower connecting plate 5-3 of the mechanism frame 5 of the transplanting clamping mechanism;

[0071] The bottom of the fixed claw 9 is provided with a U-shaped contour groove 9-2.

[0072] Preferably, the fixing claw 9 is located on one side of the gripper 4;

[0073] The width of the U-shaped contour groove 9-2 is smaller than the diameter of the semi-circular slot;

[0074] The U-shaped contour groove 9-2 and the semi-circular slot are preferably located on the same horizontal plane;

[0075] The U-shaped contour groove 9-2 is used to engage the rack flat square.

[0076] To better illustrate the technical effects of this utility model, the present utility model provides the following specific embodiments to explain the above technical process:

[0077] Example 1: This utility model provides a simple and low-cost bidirectional tightening mechanism for an inner tie rod, comprising:

[0078] 1) A bidirectional tightening mechanism for a rack and pinion assembly inner tie rod, comprising two transplanting clamping mechanisms. Each transplanting clamping mechanism includes a cylinder 1, a connecting rod mechanism 2, a clamping jaw connecting rod 3, a clamping jaw 4, a mechanism frame 5, and a locking nut 12. Figure 1 As shown.

[0079] 2) The mechanism frame 5 is composed of a fixed plate 5-1, a middle connecting plate 5-2, a lower connecting plate 5-3, a fixed plate 5-4, and an upper connecting plate 5-5. The left linkage mechanism 2 and the left gripper linkage 3 are fixed within the mechanism frame by the fifth pin 3-2 and the sixth pin 3-3. Figure 2 As shown;

[0080] 3) The first connecting rod 2-2, the second connecting rod 2-5, the first gripper connecting rod 3-1, the second gripper connecting rod 3-4, the first gripper 4-1, the first chuck 4-2, the second gripper 4-3, and the second chuck 4-4 are fixed and locked together by the first pin 2-1, the second pin 2-3, the third pin 2-4, the fourth pin 2-6, the first bolt 12-1, and the second bolt 12-2, forming a clamping drive mechanism. The locking nut 12 includes the first bolt 12-1 and the second bolt 12-2, as shown below. Figure 3 As shown.

[0081] 4) The fixed claw 9 is fixed to the lower connecting plate 5-3 by the pin 9-1 and the third bolt 9-3. The U-shaped groove 9-2 is used for fixed limit during the tightening process of the rack inner tie rod.

[0082] 5) The two transplanting clamping mechanisms move to the product clamping position, and the two cylinders 1 drive the clamping drive mechanism to clamp the two ends of the rack. The fixed claws 9 hold the rack flat. After completion, the rack can be tightened by tightening the left and right inner pull rods.

[0083] The working principle of the bidirectional tightening mechanism of the inner tie rod of this utility model is as follows:

[0084] 1. The mechanism is equipped with two axially movable transplanting clamping mechanisms. The two transplanting clamping mechanisms are equipped with two sets of clamping drive mechanisms and U-shaped fixed claws 9, which are locked by fasteners;

[0085] 2. The left and right clamping drive mechanisms are connected by cylinder 1 and multiple sets of connecting rods (first connecting rod 2-2, second connecting rod 2-5, first gripper connecting rod 3-1, second gripper connecting rod 3-4, etc.). Cylinder 1 serves as the clamping drive source, driving multiple sets of connecting rods to clamp the product.

[0086] When the piston rod of cylinder 1 moves downward, it drives the tail ends of the first connecting rod 2-2 and the second connecting rod 2-5 to move outward through the piston rod connecting plate, which in turn drives the first chuck connecting rod 3-1 and the second chuck connecting rod 3-4 to rotate around the fifth pin 3-2 and the sixth pin 3-3 respectively (the head ends rotate outward and the tail ends rotate inward), and then drives the first chuck 4-2 and the second chuck 4-4 to close and clamp the rack.

[0087] 3. The fixing claw 9 has a U-shaped contour structure and a flattened end for fixing the rack, which limits the rotation and shaking of the short steering gear assembly during the tightening of the inner tie rod;

[0088] 4. The chucks (first chuck 4-2 and second chuck 4-4) of the gripper 4 adopt a circular contour structure to clamp and position the rack, thereby limiting the lateral movement of the rack and the initial assembly position;

[0089] 5. The fixing claw 9 is fastened to the lower connecting plate 5-3 on the right side using bolts;

[0090] 6. The rack moves to the clamping position, the fixing claw 9 engages with the rack flat, and the first chuck 4-2 and the second chuck 4-4 of the left and right transfer clamping mechanism simultaneously clamp and fix the rack.

[0091] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A bidirectional tightening mechanism for an inner tie rod, characterized in that: Includes two parallel transplanting clamping mechanisms; The transplanting clamping mechanism includes a cylinder (1), a linkage mechanism (2), a gripper linkage (3), a gripper (4), and a mechanism frame (5); The piston rod of the cylinder (1) is connected to the gripper (4) through the connecting rod mechanism (2) and the gripper connecting rod (3); The gripper link (3) is hinged to the mechanism frame (5).

2. The bidirectional tightening mechanism for the inner tie rod according to claim 1, characterized in that: The mechanism frame (5) includes a right fixed plate (5-1), a middle connecting plate (5-2), a lower connecting plate (5-3), a left fixed plate (5-4), and an upper connecting plate (5-5); The right fixing plate (5-1) and the left fixing plate (5-4) are arranged vertically and parallel to each other; The upper connecting plate (5-5), the middle connecting plate (5-2), and the lower connecting plate (5-3) are arranged sequentially from top to bottom, and both ends are fixedly connected to the right fixing plate (5-1) and the left fixing plate (5-4) respectively.

3. The bidirectional tightening mechanism for the inner tie rod according to claim 2, characterized in that: The cylinder (1) is mounted on the upper connecting plate (5-5), and the piston rod of the cylinder (1) passes through the upper connecting plate (5-5); Two through holes are provided on the middle connecting plate (5-2); A through hole for the lower connecting plate (5-3) is provided.

4. The bidirectional tightening mechanism for the inner tie rod according to claim 3, characterized in that: The linkage mechanism (2) includes a first link (2-2), a second link (2-5), and a piston rod connecting plate; The piston rod of the cylinder (1) is fixedly connected to the piston rod connecting plate; The first connecting rod (2-2) and the second connecting rod (2-5) are respectively hinged to the two ends of the piston rod connecting plate through the second pin (2-3) and the third pin (2-4).

5. The bidirectional tightening mechanism for the inner tie rod according to claim 4, characterized in that: The gripper link (3) includes a first gripper link (3-1) and a second gripper link (3-4); The tail ends of the first link (2-2) and the second link (2-5) are respectively hinged to the head ends of the second gripper link (3-4) and the first gripper link (3-1) via the first pin (2-1) and the fourth pin (2-6).

6. The bidirectional tightening mechanism for the inner tie rod according to claim 5, characterized in that: The first gripper link (3-1) and the second gripper link (3-4) pass through two through holes in the middle connecting plate, and both pass through through holes in the lower connecting plate; The first gripper connecting rod (3-1) and the second gripper connecting rod (3-4) are respectively hinged to the inner side wall of the through hole of the lower connecting plate (5-3) through the fifth pin (3-2) and the sixth pin (3-3); The first link (2-2) and the second link (2-5) are both located above the middle connecting plate (5-2).

7. The bidirectional tightening mechanism for the inner tie rod according to claim 6, characterized in that: The gripper (4) includes a first gripper (4-1), a first chuck (4-2), a second gripper (4-3), and a second chuck (4-4); The tail ends of the first gripper link (3-1) and the second gripper link (3-4) are fixedly connected to the head ends of the first gripper (4-1) and the second gripper (4-3) respectively by the first bolt (12-1) and the second bolt (12-2); The tail ends of the first gripper (4-1) and the second gripper (4-3) are fixedly connected to the first chuck (4-2) and the second chuck (4-4), respectively; The first chuck (4-2) and the second chuck (4-4) each have a semi-circular slot on their opposite sides.

8. The bidirectional tightening mechanism for the inner tie rod according to claim 7, characterized in that: It also includes a fixing claw (9); The fixed claw (9) is installed on the lower connecting plate (5-3) of the mechanism frame (5) of the transplanting clamping mechanism; The bottom of the fixed claw (9) is provided with a U-shaped contour groove (9-2).

9. The bidirectional tightening mechanism for the inner tie rod according to claim 8, characterized in that: The fixed claw (9) is located on one side of the clamping claw (4); The width of the U-shaped contour groove (9-2) is smaller than the diameter of the semi-circular slot.

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