Press fitting clamp for automobile steering device shell

Abstract

The invention discloses an automobile steering gear shell press-fitting clamp which comprises a bottom plate, a pair of positioning plates and a pair of positioning locking mechanisms, each positioning locking mechanism comprises a combined groove, and each combined groove comprises a side groove, a middle groove, an inner groove and a through groove which are sequentially arranged; the locking sleeve is rotationally installed in the middle groove and the inner groove, the top of the locking sleeve is open, and the locking sleeve comprises an inner sleeve with a plurality of clamping jaws and an outer sleeve which is arranged outside the inner sleeve in a sliding and sleeving mode and used for controlling the clamping jaws to be opened and closed; the positioning shaft stretches and retracts along the axis of the positioning shaft when rotating along with the inner sleeve; in daily use, by the adoption of the technical scheme, the two ends of the automobile steering device shell are arranged in the side grooves and the middle groove from top to bottom, then the driving mechanism is operated to control the outer sleeve and the inner sleeve to rotate, all the positioning shafts move towards the other end of the inner sleeve in the circumferential direction, and therefore the automobile steering device shell can be fixed. The two ends of the automobile steering device shell are positioned, then the outer sleeves control the clamping jaws to be closed, and fixing of the automobile steering device shell is completed.

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] The shock-absorbing bushing of the automobile steering gear plays a vital role in the automobile steering system. During the driving process of the vehicle, the unevenness of the road surface will cause the wheels to vibrate, and these vibrations should be prevented from being transmitted to the driver's hands through the steering system. When the steering gear is working, the gears, racks and other parts inside the buffer will generate interaction and impact forces due to movement. When installing the traditional shock-absorbing bushing, it is usually manually pressed, using the strength of human fingers to press the shock-absorbing bushing into the installation hole, which is difficult to operate and labor-intensive.

[0003] Now there is 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 housing, and then uses two locking mechanisms (including positioning blocks, locking screws, locking handles, pressure plates and pads) to cooperate with each guide top sleeve to fix the steering housing. The defects are:

[0004] It takes multiple operations to complete the positioning and fixing of the steering gear housing, which is inconvenient to disassemble and assemble, affecting 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-fitting fixture for a steering gear housing of an automobile, comprising a base plate, a pair of positioning plates and a pair of positioning locking mechanisms, wherein the positioning locking mechanisms comprise:

[0007] A combined groove is arranged on the inner side wall of the positioning plate, comprising 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 claws, and an outer sleeve that is arranged outside the inner sleeve and is used to control the opening and closing of each clamping claw;

[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 is extended and retracted 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 at intervals along the circumferential direction on the peripheral wall of the positioning shaft 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 limit 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 arranged 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 outer side 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 sliding blocks 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, which is used to make the outer sleeve slide 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 arranged 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 slidingly matched with each locking spiral groove.

[0034] The actuation mechanism includes:

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

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

[0037] A semicircular groove, which is arranged 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 plug-in component for plugging with a pair of locking grooves is installed floatingly inside.

[0043] Connectors include:

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

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

[0046] A floating block is slidably mounted in the floating groove through 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 side slide grooves respectively, 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 groove, locking sleeve, positioning shaft and driving mechanism, the positioning shaft can be moved for positioning by simply controlling the driving mechanism, and then the clamping jaws are closed, so that the steering gear housing of the automobile is first positioned and then fixed. The operation is simple and convenient, and the disassembly and assembly are convenient;

[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 fixing of the steering housing of the automobile, and the positioning of the steering housing of the automobile is realized before the fixing of the steering housing of the automobile is completed. The positioning and fixing of the steering housing of the automobile can be completed in one action, thereby improving the disassembly and assembly efficiency;

[0051] 3. Through the arrangement of a rotating ring, a pair of inner arc grooves, a pair of arc-shaped slide blocks, 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 positioning and fixing of the steering housing of the automobile are completed, 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 stereoscopic diagram (overall) of a press-fit fixture for a steering gear housing of an automobile in an embodiment of the present application;

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

[0054] Figure 3 This is a three-dimensional diagram of the press-fitting fixture for the automobile steering gear housing 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-fit 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 matching structure of the rotating ring and the outer sleeve in the embodiment of the present application.

[0059] Reference numerals

[0060] 1-bottom 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 drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0062] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

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

[0064] Embodiment 1:

[0065] like Figures 1 to 7As shown, the embodiment of the present application provides a kind of automobile steering gear housing press-fitting fixture, including a base plate 1, a pair of positioning plates 2 and a pair of positioning locking mechanisms 3, the positioning locking mechanism 3 includes a combination groove, which is arranged on the inner wall of the positioning plate 2, including a side groove 31, a middle 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 middle groove 32 are open; a locking sleeve 35, which is rotatably installed in the middle groove 32 and the inner groove 33, and the top is open, including 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 is extended and retracted along its own axis when the inner sleeve 352 rotates; a driving mechanism 37, which 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 the 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 is in transmission cooperation with 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 352 is pressed. 52 and the outer sleeve 353 also rotate to the open side facing downward, and then the inner sleeve 352 and the outer sleeve 353 stop rotating, and 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, and the driving mechanism 37 stops the action, and then the shock absorbing bushing is pressed and installed into the corresponding installation hole on the automobile steering gear housing through the external mechanism;

[0067] A support column corresponding to a mounting hole on the steering gear housing of the automobile for mounting a shock-absorbing bushing can be fixedly arranged 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 claw 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 the unloading.

[0069] Embodiment 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 are parallel to the central axis of the positioning shaft 36; a plurality of linkage blocks 39, which are fixedly arranged on the inner peripheral wall of the inner sleeve 352 along the circumferential direction and slideably cooperate 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 slideably cooperate with the corresponding positioning spiral grooves 310.

[0071] Furthermore, the locking sleeve 35 also includes a plurality of protrusions 354, which are fixedly arranged 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 fixedly arranged on the inner circumferential wall of the outer sleeve 353; and a slope 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 slope 357.

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

[0073] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the driving force of the driving mechanism 37 acts on the outer sleeve 353, and while controlling the outer sleeve 353 to rotate, each limit block 356 cooperates with each limit groove 355 to make the inner sleeve 352 rotate synchronously with the outer sleeve 353. Correspondingly, each linkage block 39 cooperates with each linkage groove 38 to make the positioning shaft 36 rotate together with the inner sleeve 352. While the positioning shaft 36 rotates, each positioning transmission block 311 rotates in the corresponding positioning spiral groove 310, so that the positioning shaft 36 can extend into the corresponding inner sleeve 352 when the openings of the outer sleeve 353 and the inner sleeve 352 are turned downward, or slide toward the outside of the corresponding inner sleeve 352 when the openings of the outer sleeve 353 and the inner sleeve 352 are turned upward. When the openings of the outer sleeve 353 and the inner sleeve 352 are turned downward, each positioning transmission block 311 rotates in the corresponding positioning spiral groove 310. 11 also moves to abut against the inner end of each positioning spiral groove 310 (close to one end of the corresponding inner sleeve 352), and the positioning shaft 36 cannot continue to rotate. Under the mutual cooperation of each linkage groove 38 and each linkage block 39 and each limit groove 355 and each limit block 356, the inner sleeve 352 and the outer sleeve 353 cannot continue to rotate. The driving mechanism 37 continues to operate to control the outer sleeve 353 to slide along the inner sleeve 352 toward the corresponding side groove 31, so that the inclined surface 357 at one end of the outer sleeve 353 cooperates with the outer side wall of each clamping claw 351, pushing the free end of each clamping claw 351 to approach and press against the surrounding walls at both ends of the automobile steering gear housing. The reverse action of the driving mechanism 37 can make the outer sleeve 353 slide away from the corresponding side groove 31, and the free end of each clamping claw 351 is separated from the automobile steering gear housing under the action of its own elastic force, thereby releasing the fixation of the automobile steering gear housing.

[0074] Embodiment 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 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-shaped sliders 373, symmetrically arranged on the outer circumferential wall of the outer sleeve 353; a number of supporting springs 374, respectively arranged between the counterclockwise end face of each arc-shaped 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 ; and a plurality of locking transmission blocks 42 , which are respectively fixed on the inner side walls of each inner arc groove 372 and slidably 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 installed 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 installed in the semicircular groove 53, one end of which is fixedly connected 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 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 a connector 6 for plugging into the pair of locking grooves 55 is installed floatingly inside.

[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 slide grooves 62, which are respectively arranged on the inner walls of each pillar 57, one end of which is connected to the end of the floating groove 61, and the other end 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 plurality 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 slide groove 62, one end of which is fixedly connected 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, the handle 56 is held and the floating block 63 is pressed to disengage each insertion rod 64 from the corresponding locking groove 55, and then the handle 56 is rotated 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 which 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 steering housing of the automobile, and each positioning transmission block 311 is pressed against the inner end of the corresponding positioning spiral groove 310, at which 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, 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 steering housing of the automobile, and each plug rod 64 is also respectively corresponding to a pair of locking grooves 55 at this time, and then the floating block 63 is released, and each floating spring releases elastic potential energy, pushing the floating block 63 and each plug rod 64 to move in the direction of the positioning plate 2, so that the end of each plug rod 64 away from the floating block 63 is inserted into the corresponding locking groove 55, thereby completing the fixation of the steering housing of the automobile;

[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 plug rod 64 from the corresponding locking groove 55, then turn 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 in the direction of the through groove 34 to disengage from the cooperation with each clamping claw 351, and each clamping claw 351 resets under the action of its own elastic force to release the contact with the peripheral wall of the end of the automobile steering housing. In this process, each supporting spring 374 releases its elastic potential energy until each arc-shaped slider 373 is in contact with The corresponding end surface of the inner arc groove 372 without a supporting spring 374 abuts against each locking transmission block 42 and each locking spiral groove 41 abuts against the end 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 the floating block 63 is released. Each floating spring releases its elastic potential energy, pushing the floating block 63 and each plug rod 64 to move toward the positioning plate 2, so that the end of each plug 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 variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out 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 reverse 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 the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present 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, which is arranged on the inner side wall of the positioning plate (2), comprises a side groove (31), a middle 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 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 comprises an inner sleeve (352) with a plurality of clamping jaws (351), and an outer sleeve (353) slidably mounted outside the inner sleeve (352) for controlling the opening and closing of each clamping jaw (351); A positioning shaft (36) 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 expands and contracts along its own axis when the inner sleeve (352) rotates; The driving mechanism (37) is used to control the rotation and extension of the outer sleeve (353).

2. The automobile steering gear housing press-fitting fixture according to claim 1, characterized in that: 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 arranged on the inner circumferential wall of the inner sleeve (352) at intervals along the circumferential direction and are slidably matched with the linkage grooves (38); A pair of positioning spiral grooves (310) are 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 matched with the corresponding positioning spiral grooves (310).

3. The automobile steering gear housing press-fitting fixture according to claim 1, characterized in that: 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 two sides of each protrusion (354) and the side walls of 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 arranged 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 side wall is in contact with the inclined surface (357).

4. The automobile steering gear housing press-fitting fixture according to claim 3, characterized in that: The locking sleeve (35) further comprises: A plurality of reinforcement grooves (358) are respectively arranged at the connection between the inner side wall of each clamping jaw (351) and the inner sleeve (352).

5. The automobile steering gear housing press-fitting fixture according to claim 2, characterized in that: 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) symmetrically arranged on the inner peripheral wall of the rotating ring (371); A pair of arc-shaped sliding blocks (373) are symmetrically arranged on the outer peripheral wall of the outer sleeve (353); A plurality of supporting springs (374) are respectively arranged between the counterclockwise end surface of each arc-shaped sliding block (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 installed on the outer side wall of the positioning plate (2).

6. The automobile steering gear housing press-fitting fixture according to claim 5, characterized in that: The transmission member (4) comprises: A pair of locking spiral grooves (41) are respectively arranged on the outer side walls of each of the arc-shaped sliding blocks (373); A plurality of locking transmission blocks (42) are respectively fixed on the inner side walls of each inner arc groove (372) and are slidably matched with each locking spiral groove (41).

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

8. The automobile steering gear housing press-fitting fixture according to claim 7, characterized in that: The central angle of the semicircular groove (53) is 180°.

9. The automobile steering gear housing press-fitting fixture according to claim 7, 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 plug-in component (6) for plugging into a pair of locking grooves (55) is installed floatingly inside.

10. The automobile steering gear housing press-fitting fixture according to claim 9, characterized in that: The plug connector (6) comprises: A floating groove (61) disposed on the inner side wall of the handle (56); A pair of side sliding grooves (62) are respectively arranged on the inner side walls 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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