A press-fit fixture for automobile steering gear housing

Abstract

The present application discloses a press-fitting fixture for an automobile steering gear housing, comprising a base plate, a pair of positioning plates and a pair of positioning locking mechanisms, the positioning locking mechanism comprising a combined groove, which comprises a side groove, a middle groove, an inner groove and a through groove arranged in sequence; a locking sleeve, which is rotatably mounted in the middle groove and the inner groove, with an open top, comprising an inner sleeve with a plurality of clamping claws, an outer sleeve slidingly sleeved outside the inner sleeve for controlling the opening and closing of each clamping claw; a positioning shaft, which extends and retracts along its own axis as the inner sleeve rotates; a driving mechanism for controlling the rotation and extension of the outer sleeve. In daily use, by adopting the above technical solution, the two ends of the automobile steering gear housing are placed from top to bottom into the side grooves and the middle groove, and then the driving mechanism is operated to control the rotation of the outer sleeve and the inner sleeve, so that the positioning shafts move circumferentially toward the other end of the inner sleeve to position the two ends of the automobile steering gear housing, and then each outer sleeve controls the closing of each clamping claw to complete the fixation of the automobile steering gear housing.

Description

Technical Field

[0001] The invention relates to the field of vehicle steering system production equipment, and in particular to a press-fitting fixture for an automobile steering gear housing. Background Art

[0002] Steering gear damping bushings play a crucial role in the vehicle's steering system. Road irregularities can cause wheel vibrations during driving, and these vibrations must be prevented from being transmitted through the steering system to the driver's hands. During operation, the steering gear cushions the interaction and impact forces generated by the movement of internal gears, racks, and other components. Traditionally, damping bushings are installed manually, using the strength of fingers to press the bushing into the mounting hole. This is difficult and labor-intensive.

[0003] There is now a kind of automobile electric power steering elastic bushing press-fitting tool and elastic bushing press-fitting method (publication number CN116038284A), which uses two positioning shafts and corresponding positioning plates and hexagon socket bolts to position the steering gear housing, and then uses two locking mechanisms (each including a positioning block, a locking screw, a locking handle, a pressure plate and a pad) to cooperate with each guide top sleeve to fix the steering gear housing. The defects of the tool are as follows:

[0004] Multiple operations are required to complete the positioning and fixing of the steering gear housing, which makes disassembly and assembly inconvenient and affects production efficiency. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art.

[0006] The present application provides a press-fit fixture for an automobile steering gear housing, comprising a base plate, a pair of positioning plates, and a pair of positioning locking mechanisms, wherein the positioning locking mechanisms include:

[0007] The combined groove is arranged on the inner side wall of the positioning plate, and includes a side groove, a middle groove, an inner groove and a through groove arranged in sequence, and the top ends of the side groove and the middle groove are open;

[0008] The locking sleeve is rotatably mounted in the middle groove and the inner groove, has an open top, and includes an inner sleeve with a plurality of clamping jaws, and an outer sleeve slidingly mounted outside the inner sleeve for controlling the opening and closing of each clamping jaw;

[0009] The positioning shaft is slidably inserted in the inner sleeve and the through slot, and is in transmission cooperation with the inner sleeve and the through slot, and expands and contracts along its own axis when the inner sleeve rotates;

[0010] The driving mechanism is used to control the rotation and extension of the outer sleeve.

[0011] The positioning locking mechanism also includes:

[0012] A plurality of linkage grooves are arranged on the peripheral wall of the positioning shaft at intervals along the circumferential direction and are parallel to the central axis of the positioning shaft;

[0013] A plurality of linkage blocks are fixedly arranged on the inner circumferential wall of the inner sleeve at intervals along the circumferential direction and slidably cooperate with the linkage grooves;

[0014] A pair of positioning spiral grooves are arranged at intervals on the inner wall of the through groove;

[0015] A pair of positioning transmission blocks are symmetrically fixed on the outer peripheral wall of the positioning shaft and slidingly matched with the corresponding positioning spiral grooves.

[0016] The locking sleeve also includes:

[0017] A plurality of protrusions are fixedly arranged at intervals on the end surface of the inner sleeve facing the side groove;

[0018] A plurality of limiting grooves are respectively located between the two sides of each protrusion and the side walls of the adjacent clamping jaws;

[0019] A plurality of limit blocks are slidably mounted in the limit grooves and fixed on the inner peripheral wall of the outer sleeve;

[0020] An inclined surface is provided on the inner peripheral wall of the inner sleeve toward the side groove end;

[0021] The free ends of the clamping jaws are inclined toward the outer sleeve, and the outer side wall is in contact with the inclined surface.

[0022] The locking sleeve also includes:

[0023] A plurality of reinforcement grooves are respectively arranged at the connection between the inner side wall of each clamping jaw and the inner sleeve.

[0024] The driving mechanism includes:

[0025] A rotating ring is rotatably mounted in the inner groove and sleeved on the outside of the outer sleeve;

[0026] A pair of inner arc grooves are symmetrically arranged on the inner peripheral wall of the rotating ring;

[0027] A pair of arc-shaped sliders are symmetrically arranged on the outer peripheral wall of the outer sleeve;

[0028] A plurality of supporting springs are respectively arranged between the counterclockwise end surface of each arc-shaped slider and the end surface of the corresponding arc groove;

[0029] a transmission member for sliding the outer sleeve along the axis of the inner sleeve;

[0030] The actuating mechanism is used to control the rotation of the rotating ring and is installed on the outer side wall of the positioning plate.

[0031] Transmission parts include:

[0032] A pair of locking spiral grooves are respectively provided on the outer side walls of each arc-shaped slider;

[0033] A plurality of locking transmission blocks are respectively fixed on the inner side walls of each inner arc groove and slidably matched with each locking spiral groove.

[0034] The actuation mechanism includes:

[0035] A fixing ring, which is fixed on the outer wall of the positioning plate and is coaxial with the through slot;

[0036] A swivel ring, rotatably mounted on the outer peripheral wall of the fixed ring;

[0037] a semicircular groove, which is provided on the outer side wall of the positioning plate and communicates with the inner groove;

[0038] The connecting rod is slidably installed in the semicircular groove, one end of which is fixedly connected to the rotating ring, and the other end is connected to the fixed ring through a supporting plate.

[0039] The central angle of the semicircular groove is °.

[0040] The actuation mechanism also includes:

[0041] A pair of locking grooves are symmetrically arranged on the outer side wall of the positioning plate;

[0042] The handle is fixed on the outer end surface of the rotating ring through a pair of pillars, and a connector for plugging into a pair of locking grooves is installed floatingly inside.

[0043] Connectors include:

[0044] a floating groove, which is provided on the inner side wall of the handle;

[0045] A pair of side slide grooves are respectively provided on the inner side wall of each pillar, one end of which is connected to the end of the floating groove and the other end of which is connected to the inner end surface of the swivel;

[0046] A floating block is slidably mounted in the floating groove via a plurality of floating springs, with one end extending out of the floating groove;

[0047] A pair of plug rods are slidably installed in the sliding grooves on each side, one end of which is fixedly connected to the end of the floating block, and the other end can be inserted into the corresponding locking groove.

[0048] The beneficial effects of the present invention are as follows:

[0049] 1. Through the arrangement of the combination slot, locking sleeve, positioning shaft and driving mechanism, the positioning shaft can be moved for positioning by simply manipulating the driving mechanism, and then the clamping jaws are closed to position the steering gear housing of the automobile first and then fix it. The operation is simple and convenient, and disassembly and assembly are easy;

[0050] 2. Through the arrangement of a plurality of linkage grooves, a plurality of linkage blocks, a pair of positioning spiral grooves, and a pair of positioning transmission blocks, the inner sleeve and the outer sleeve are driven by the driving mechanism to complete the positioning of the steering housing of the automobile before the steering housing of the automobile is fixed. The steering housing of the automobile can be positioned first and then fixed in one action, thereby improving the efficiency of disassembly and assembly;

[0051] 3. By arranging a rotating ring, a pair of inner arc grooves, a pair of arc-shaped sliders, a plurality of supporting springs, a pair of locking spiral grooves, a plurality of locking transmission blocks, a fixed ring, a rotating ring, a semicircular groove, a connecting rod, a pair of locking grooves, a handle and a connector, after the steering housing of the automobile is positioned and fixed, the positioning locking mechanism is self-locking, thereby improving the stability of the fixing of the steering housing of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a three-dimensional diagram (overall) of the press-fitting fixture for the automobile steering gear housing in an embodiment of the present application;

[0053] Figure 2 A three-dimensional diagram of the automobile steering gear housing press-fitting fixture in the embodiment of this application (cut-away bottom plate and positioning plate)

[0054] Figure 3 This is a three-dimensional diagram of the automobile steering gear housing press-fitting fixture in the embodiment of the present application (showing the outer side of the positioning plate);

[0055] Figure 4 This is a three-dimensional diagram of the locking mechanism in the embodiment of the present application;

[0056] Figure 5 This is a cross-sectional view of a press-fitting fixture for a steering gear housing of an automobile in an embodiment of the present application;

[0057] Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure at center A;

[0058] Figure 7 This is a schematic diagram of the cooperation structure between the rotating ring and the outer sleeve in an embodiment of the present application.

[0059] Reference numerals

[0060] 1-base plate, 2-positioning plate, 3-positioning locking mechanism, 31-side groove, 32-middle groove, 33-inner groove, 34-through groove, 35-locking sleeve, 351-clamping claw, 352-inner sleeve, 353-outer sleeve, 354-bump, 355-limiting groove, 356-limiting block, 357-inclined surface, 358-reinforcement groove, 36-positioning shaft, 37-driving mechanism, 371-rotating ring, 372-inner arc groove, 373-arc Slider, 374-support spring, 38-linkage groove, 39-linkage block, 310-positioning spiral groove, 311-positioning transmission block, 4-transmission member, 41-locking spiral groove, 42-locking transmission block, 5-actuating mechanism, 51-fixing ring, 52-swivel, 53-semicircular groove, 54-connecting rod, 55-locking groove, 56-handle, 6-connector, 61-floating groove, 62-side slide groove, 63-floating block, 64-insertion rod. DETAILED DESCRIPTION

[0061] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0062] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0063] The following describes in detail the automobile steering gear housing press-fitting fixture provided by the embodiment of the present application through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0064] Example 1:

[0065] like Figures 1 to 7As shown, an embodiment of the present application provides a press-fitting fixture for an automobile steering gear housing, comprising a base plate 1, a pair of positioning plates 2 and a pair of positioning locking mechanisms 3, the positioning locking mechanism 3 comprising a combination groove, which is arranged on the inner side wall of the positioning plate 2, comprising a side groove 31, an intermediate groove 32, an inner groove 33 and a through groove 34 arranged in sequence, and the top ends of the side groove 31 and the intermediate groove 32 are open; a locking sleeve 35, which is rotatably installed in the intermediate groove 32 and the inner groove 33, with an open top, comprising an inner sleeve 352 with a plurality of clamping jaws 351, and an outer sleeve 353 slidably sleeved outside the inner sleeve 352 for controlling the opening and closing of each clamping jaw 351; a positioning shaft 36, which is slidably inserted in the inner sleeve 352 and the through groove 34, and is in transmission cooperation with the inner sleeve 352 and the through groove 34, and extends and retracts along its own axis when the inner sleeve 352 rotates; a driving mechanism 37 is used to control the rotation and extension of the outer sleeve 353.

[0066] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the two ends of the automobile steering gear housing are respectively aligned with the middle groove 32 and the side groove 31 on both sides, and the automobile steering gear housing is lowered so that its two ends enter the middle groove 32 and the side groove 31 on both sides, and then the driving mechanism 37 is operated to control the rotation of each outer sleeve 353 and each inner sleeve 352. At the same time, the positioning shaft 36 that cooperates with the transmission of each inner sleeve 352 also moves toward the end of the automobile steering gear housing. Each positioning shaft 36 first contacts and presses with the two ends of the automobile steering gear housing, and each inner sleeve 3 52 and the outer sleeve 353 also rotate until the open side faces downward, and then the inner sleeve 352 and the outer sleeve 353 stop rotating. The driving mechanism 37 controls the outer sleeve 353 to move toward the corresponding side groove 31, so that the inner wall of each outer sleeve 353 pushes the multiple clamping claws 351 located at the end of each inner sleeve 352 to move toward the automobile steering gear housing until each clamping claw 351 clamps the two ends of the automobile steering gear housing respectively. The driving mechanism 37 stops the action, and then the shock-absorbing bushing is pressed and installed into the corresponding mounting hole on the automobile steering gear housing through the external mechanism;

[0067] Support columns corresponding to mounting holes for mounting shock-absorbing bushings on the steering gear housing of the automobile can be fixed on the bottom plate 1 to improve the fixing effect of the steering gear housing of the automobile.

[0068] When unloading, the operating drive mechanism 37 moves in the reverse direction, each outer sleeve 353 slides away from the side groove 31, and each clamping jaw 351 breaks away from the contact with the peripheral wall of the end of the automobile steering gear housing. The outer sleeve 353 and the inner sleeve 352 continue to rotate until the opening faces upward. At the same time, each positioning shaft 36 slides into the corresponding through groove 34 and breaks away from the contact with the end face of the automobile steering housing. At this time, the automobile steering gear housing can be lifted upward to complete unloading.

[0069] Example 2:

[0070] like Figures 2 to 6As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the positioning locking mechanism 3 also includes a plurality of linkage grooves 38, which are circumferentially spaced on the peripheral wall of the positioning shaft 36 and parallel to the central axis of the positioning shaft 36; a plurality of linkage blocks 39, which are fixed on the inner peripheral wall of the inner sleeve 352 at intervals along the circumferential direction and slide with each linkage groove 38; a pair of positioning spiral grooves 310, which are spaced on the inner wall of the through groove 34; and a pair of positioning transmission blocks 311, which are symmetrically fixed on the outer peripheral wall of the positioning shaft 36 and slide with the corresponding positioning spiral grooves 310.

[0071] Furthermore, the locking sleeve 35 also includes a plurality of protrusions 354, which are fixed at intervals on the end surface of the inner sleeve 352 facing the side groove 31; a plurality of limit grooves 355, which are respectively located on both sides of each protrusion 354 and between the side walls of adjacent clamping jaws 351; a plurality of limit blocks 356, which are respectively slidably installed in each limit groove 355 and fixed on the inner circumferential wall of the outer sleeve 353; an inclined surface 357, which is arranged on the end of the inner circumferential wall of the inner sleeve 352 facing the side groove 31, and the free ends of each clamping jaw 351 are inclined toward the outer sleeve 353, and the outer side wall is in contact with the inclined surface 357.

[0072] Furthermore, the locking sleeve 35 further includes a plurality of reinforcement grooves 358 , which are respectively provided at the connection between the inner side wall of each clamping jaw 351 and the inner sleeve 352 .

[0073] When the outer sleeve 353 and the inner sleeve 352 are turned downwards, the positioning shaft 36 is rotated together with the inner sleeve 352. When the outer sleeve 353 and the inner sleeve 352 are turned upwards, the positioning shaft 36 is inserted into the corresponding inner sleeve 352, and the positioning shaft 36 is rotated together with the inner sleeve 352. When the locking cam 352 is in the unlocking state, the locking cam 353 is in the unlocking state, and the locking cam 353 is locked.

[0074] Example 3:

[0075] like Figures 1 to 6 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the driving mechanism 37 includes a rotating ring 371, which is rotatably installed in the inner groove 33 and is sleeved on the outside of the outer sleeve 353; a pair of inner arc grooves 372, symmetrically arranged on the inner circumferential wall of the rotating ring 371; a pair of arc sliders 373, symmetrically arranged on the outer circumferential wall of the outer sleeve 353; a number of support springs 374, respectively arranged between the counterclockwise end face of each arc slider 373 and the end face of the corresponding arc groove; a transmission member 4, which is used to make the outer sleeve 353 slide along the axis of the inner sleeve 352; an actuating mechanism 5, which is used to control the rotation of the rotating ring 371 and is installed on the outer wall of the positioning plate 2.

[0076] Furthermore, the transmission member 4 includes a pair of locking spiral grooves 41, which are respectively arranged on the outer side walls of each arc-shaped slider 373; a plurality of locking transmission blocks 42 are respectively fixed on the inner side walls of each inner arc groove 372 and slidingly cooperate with each locking spiral groove 41.

[0077] Furthermore, the actuating mechanism 5 includes a fixed ring 51, which is fixed on the outer wall of the positioning plate 2 and is coaxial with the through groove 34; a rotating ring 52, which is rotatably mounted on the outer peripheral wall of the fixed ring 51; a semicircular groove 53, which is arranged on the outer wall of the positioning plate 2 and is connected to the inner groove 33; a connecting rod 54, which is slidably mounted in the semicircular groove 53, one end of which is fixed to the rotating ring 371, and the other end is connected to the fixed ring 51 through a support plate.

[0078] Preferably, the central angle of the semicircular groove 53 is 180°.

[0079] Furthermore, the actuating mechanism 5 also includes a pair of locking grooves 55, which are symmetrically arranged on the outer wall of the positioning plate 2; a handle 56, which is fixed on the outer end surface of the swivel 52 through a pair of pillars 57, and has a connector 6 installed floatingly inside for plugging into the pair of locking grooves 55.

[0080] Furthermore, the connector 6 includes a floating groove 61, which is arranged on the inner wall of the handle 56; a pair of side sliding grooves 62, which are respectively arranged on the inner wall of each pillar 57, one end of which is connected to the end of the floating groove 61, and the other end of which is connected to the inner end surface of the swivel 52; a floating block 63, which is slidably installed in the floating groove 61 through a number of floating springs, and one end extends out of the floating groove 61; a pair of insertion rods 64, which are respectively slidably installed in each side sliding groove 62, one end of which is fixed to the end of the floating block 63, and the other end can be inserted into the corresponding locking groove 55.

[0081] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when it is necessary to fix the steering housing of the automobile, hold the handle 56 and press the floating block 63 to disengage each insertion rod 64 from the corresponding locking groove 55, and then rotate the handle 56 clockwise, the pillar 57, the swivel 52, the connecting rod 54 and the rotating ring 371 all rotate clockwise, and each supporting spring 374 plays a supporting role, so that the outer sleeve 353 and the inner sleeve 352 first rotate clockwise with the rotating ring 371 until the open sides of the outer sleeve 353 and the inner sleeve 352 face downward. At this time, the end faces of each positioning shaft 36 located in the corresponding inner sleeve 352 are respectively pressed against the two ends of the automobile steering housing, and each positioning transmission block 311 is pressed against the inner end of the corresponding positioning spiral groove 310. At this time, the inner sleeve 352 and the outer sleeve 353 cannot continue to rotate, and the worker still continues Continue to turn the handle 56 clockwise to make the rotating ring 371 continue to rotate clockwise, each supporting spring 374 is compressed and shortened, and each locking transmission block 42 slides from the end of each locking spiral groove 41 close to the side groove 31 to the end close to the through groove 34, pushing each outer sleeve 353 to slide in the direction of the side groove 31, pressing the free end of each clamping claw 351 inward until the connecting rod 54 slides to the other end of the semicircular groove 53, at this time, the inner side wall of each clamping claw 351 is tightly pressed against the outer wall of the corresponding end of the automobile steering housing, and each insertion rod 64 is also respectively corresponding to a pair of locking grooves 55 at this time, and then release the floating block 63, each floating spring releases its elastic potential energy, pushing the floating block 63 and each insertion rod 64 to move toward the positioning plate 2, so that the end of each insertion rod 64 away from the floating block 63 is inserted into the corresponding locking groove 55, thereby completing the fixation of the automobile steering housing;

[0082] When it is necessary to release the fixation of the automobile steering housing, hold the handle 56 and press the floating block 63 to disengage each insertion rod 64 from the corresponding locking groove 55, then rotate the handle 56 counterclockwise, the pillar 57, the swivel 52, the connecting rod 54 and the rotating ring 371 all rotate counterclockwise, and each locking transmission block 42 slides from the end of each locking spiral groove 41 away from the side groove 31 to the end close to the side groove 31, and the outer sleeve 353 slides toward the through groove 34, disengaging from the cooperation with each clamping claw 351, and each clamping claw 351 resets under the action of its own elastic force, releasing the contact with the peripheral wall of the end of the automobile steering housing. In this process, each support spring 374 releases its elastic potential energy until each arc slider 373 and The end face of the corresponding inner arc groove 372 without a support spring 374 abuts, and each locking transmission block 42 abuts against the end of each locking spiral groove 41 away from the side groove 31. Continue to rotate the handle 56 counterclockwise to make the inner sleeve 352 and the outer sleeve 353 rotate together with the rotating ring 371 until the open sides of the inner sleeve 352 and the outer sleeve 353 face upward. At this time, the connecting rod 54 also moves to the starting end of the semicircular groove 53, and then releases the floating block 63. The floating springs release their elastic potential energy, pushing the floating block 63 and the insertion rods 64 toward the positioning plate 2, so that the end of each insertion rod 64 away from the floating block 63 is inserted into the corresponding locking groove 55, thereby releasing the fixation of the automobile steering housing.

[0083] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0084] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A press-fitting fixture for a steering gear housing of an automobile, comprising a base plate (1), a pair of positioning plates (2) and a pair of positioning locking mechanisms (3), characterized in that: The positioning locking mechanism (3) comprises: A combined groove is provided on the inner side wall of the positioning plate (2), comprising a side groove (31), a middle groove (32), an inner groove (33) and a through groove (34) arranged in sequence, wherein the top ends of the side groove (31) and the middle groove (32) are open; A locking sleeve (35) is rotatably mounted in the middle groove (32) and the inner groove (33), has an open top, and includes an inner sleeve (352) with a plurality of clamping jaws (351), and an outer sleeve (353) slidingly mounted outside the inner sleeve (352) for controlling the opening and closing of each clamping jaw (351); A positioning shaft (36) is slidably inserted into the inner sleeve (352) and the through groove (34), and is in transmission cooperation with the inner sleeve (352) and the through groove (34), and expands and contracts along its own axis when the inner sleeve (352) rotates; A driving mechanism (37) for controlling the rotation and extension of the outer sleeve (353); The positioning locking mechanism (3) further comprises: A plurality of linkage grooves (38) are arranged at intervals along the circumferential direction on the peripheral wall of the positioning shaft (36) and are parallel to the central axis of the positioning shaft (36); A plurality of linkage blocks (39) are fixedly mounted on the inner peripheral wall of the inner sleeve (352) at intervals along the circumferential direction and are slidably engaged with the linkage grooves (38); a pair of positioning spiral grooves (310) arranged at intervals on the inner wall of the through groove (34); A pair of positioning transmission blocks (311) are symmetrically fixed on the outer peripheral wall of the positioning shaft (36) and slidably engaged with the corresponding positioning spiral grooves (310); The locking sleeve (35) further comprises: A plurality of protrusions (354) are fixedly arranged at intervals on the end surface of the inner sleeve (352) facing the side groove (31); A plurality of limiting grooves (355) are respectively located between the two sides of each protrusion (354) and the side walls of the adjacent clamping jaws (351); A plurality of limit blocks (356) are respectively slidably mounted in the limit grooves (355) and fixed on the inner peripheral wall of the outer sleeve (353); An inclined surface (357) is provided on the inner peripheral wall of the inner sleeve (352) toward the end of the side groove (31); The free ends of the clamping jaws (351) are inclined toward the outer sleeve (353), and the outer sidewalls are in contact with the inclined surface (357); The driving mechanism (37) comprises: A rotating ring (371) is rotatably mounted in the inner groove (33) and sleeved on the outside of the outer sleeve (353); A pair of inner arc grooves (372) are symmetrically arranged on the inner peripheral wall of the rotating ring (371); A pair of arc-shaped sliders (373) symmetrically arranged on the outer peripheral wall of the outer sleeve (353); A plurality of support springs (374) are respectively arranged between the counterclockwise end surface of each arc-shaped slider (373) and the end surface of the corresponding arc groove; A transmission member (4) for causing the outer sleeve (353) to slide along the axis of the inner sleeve (352); An actuating mechanism (5), which is used to control the rotation of the rotating ring (371), is mounted on the outer side wall of the positioning plate (2).

2. The automobile steering gear housing press-fitting fixture according to claim 1, characterized in that: The locking sleeve (35) further comprises: A plurality of reinforcement grooves (358) are respectively provided at the connection between the inner side wall of each clamping jaw (351) and the inner sleeve (352).

3. The automobile steering gear housing press-fitting fixture according to claim 1, characterized in that: The transmission member (4) comprises: A pair of locking spiral grooves (41) are respectively provided on the outer side walls of each of the arc-shaped sliders (373); A plurality of locking transmission blocks (42) are respectively fixed on the inner side walls of the inner arc grooves (372) and are slidably matched with the locking spiral grooves (41).

4. The automobile steering gear housing press-fitting fixture according to claim 3, characterized in that: The actuating mechanism (5) comprises: A fixing ring (51) fixed on the outer wall of the positioning plate (2) and coaxial with the through groove (34); a rotating ring (52) rotatably mounted on the outer peripheral wall of the fixed ring (51); a semicircular groove (53) provided on the outer side wall of the positioning plate (2) and communicating with the inner groove (33); A connecting rod (54) is slidably mounted in the semicircular groove (53), one end of which is fixedly connected to the rotating ring (371), and the other end of which is connected to the fixed ring (51) via a support plate.

5. The automobile steering gear housing press-fitting fixture according to claim 4, characterized in that: The central angle of the semicircular groove (53) is 180°.

6. The automobile steering gear housing press-fitting fixture according to claim 4, characterized in that: The actuating mechanism (5) further comprises: A pair of locking grooves (55) symmetrically arranged on the outer side wall of the positioning plate (2); The handle (56) is fixed on the outer end surface of the rotating ring (52) through a pair of pillars (57), and a connector (6) for connecting with a pair of locking grooves (55) is installed floatingly inside.

7. The automobile steering gear housing press-fitting fixture according to claim 6, characterized in that: The plug connector (6) comprises: a floating groove (61) provided on the inner side wall of the handle (56); A pair of side sliding grooves (62) are respectively provided on the inner side wall of each of the pillars (57), one end of which is connected to the end of the floating groove (61) and the other end of which is connected to the inner end surface of the rotating ring (52); A floating block (63) is slidably mounted in the floating groove (61) via a plurality of floating springs, with one end extending out of the floating groove (61); A pair of insertion rods (64) are respectively slidably mounted in each of the side sliding grooves (62), one end of which is fixedly connected to the end of the floating block (63), and the other end of which can be inserted into the corresponding locking groove (55).

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