CN217452455U

CN217452455U - Clamping and positioning device for automobile steering rack

Info

Publication number: CN217452455U
Application number: CN202221653341.5U
Authority: CN
Inventors: 叶世勇; 罗俊群; 赵世雷
Original assignee: SHANGHAI BEITE TECHNOLOGY CO LTD
Current assignee: SHANGHAI BEITE TECHNOLOGY CO LTD
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-09-20
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a steering rack clamping positioner, steering rack's one end has the horizontal clamping face of a pair of parallel. The automobile steering rack clamping and positioning device comprises: location fixture, slide mechanism and mounting panel. The front end of the positioning and clamping mechanism is provided with a square notch, and the square notch is matched with the two horizontal clamping surfaces. The sliding assembly comprises a fixed assembly and a sliding assembly, and the sliding assembly is horizontally connected with the fixed assembly in a sliding manner. The mounting plate is fixed in the sliding assembly, and the positioning and clamping mechanism is vertically movably connected with the mounting plate. The device can ensure that the position and the angle are accurate when the machine tool clamps the automobile steering rack, and improves the processing quality of the rack.

Description

Clamping and positioning device for automobile steering rack

Technical Field

The utility model relates to a steering rack clamping positioner of car.

Background

The rack is an important connecting part for supporting steering of the steering gear, is mostly applied to an executing part of the chassis steering gear, and is a moving part with frequent movement and high technical requirement. When the automobile turns, the rack is meshed with the gear to realize turning, and the service life, reliability and comfort of the whole product are directly influenced by the quality of the rack and the gear. The rack processing requirement is high, and is strict to positioning accuracy requirement, and the rack needs to be fixed centre gripping through positioner to it in the course of working. The existing positioning device can not well clamp and fix the rack, has a complex structure, is more complicated to operate, has poor fixing effect and is inconvenient to process.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the clamping effect is not good for overcoming among the prior art auto steering rack, complex operation's defect provides a auto steering rack clamping positioner that can solve above-mentioned problem.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the utility model provides an automobile steering rack clamping positioner, automobile steering rack's one end has a pair of parallel horizontal clamping face, its characterized in that, and it includes:

the front end of the positioning and clamping mechanism is provided with a square notch, and the square notch is matched with the two horizontal clamping surfaces;

the sliding mechanism comprises a fixed component and a sliding component, and the sliding component is horizontally and slidably connected with the fixed component;

a mounting plate, the mounting plate is fixed in the sliding component, the positioning and clamping mechanism is connected with the mounting plate in a vertically movable manner.

Preferably, location fixture includes push rod subassembly, locating piece and push rod mounting panel, push rod subassembly is fixed in on the push rod mounting panel, push rod subassembly's end connection in the locating piece, square notch is located on the locating piece, the push rod mounting panel with the mounting panel can be connected with vertical removal.

Preferably, the push rod mounting plate is provided with an oblong hole extending in the vertical direction, and the push rod mounting plate is connected to the mounting plate through the oblong hole.

Preferably, the push rod assembly comprises a sleeve, a first spring and a square telescopic shaft, the sleeve is connected to the push rod mounting plate, the first spring is installed in a containing cavity of the sleeve, a square hole is formed in one end of the sleeve, one end of the square telescopic shaft penetrates through the square hole and is pressed on the first spring, and the other end of the square telescopic shaft is connected to the positioning block.

Preferably, one end of the square telescopic shaft located in the sleeve is provided with a limiting portion, and the limiting portion can abut against the inner end face of the square hole.

Preferably, one end of the square telescopic shaft, which is located outside the sleeve, is provided with a groove, the positioning block is provided with a protrusion, the groove is matched with the protrusion, the groove is internally provided with a first threaded hole, the protrusion is internally provided with a step hole, and a screw penetrates through the step hole to be connected to the first threaded hole.

Preferably, the outer periphery of the sleeve is provided with an external thread, the push rod mounting plate is provided with a second threaded hole, the sleeve is connected to the second threaded hole, the positioning and clamping mechanism further comprises a flange throat plug nut, and the flange throat plug nut is connected to the external thread of the sleeve and pressed on the push rod mounting plate.

Preferably, the positioning and clamping mechanism further comprises a second spring, and two ends of the second spring are respectively pressed on the bottom surface of the push rod mounting plate and the top surface of the sliding assembly along the vertical direction.

Preferably, the automobile steering rack clamping and positioning device further comprises a limiting bolt and a limiting bolt mounting plate, a third threaded hole is formed in the limiting bolt mounting plate, and the limiting bolt penetrates through the third threaded hole and abuts against the top surface of the push rod mounting plate.

Preferably, the fixed component comprises a bottom plate and a guide rail, the sliding component comprises a sliding block and a supporting plate, the guide rail is installed on the top surface of the bottom plate, the sliding block is installed on the bottom surface of the supporting plate, the guide rail is matched with the sliding block, and the mounting plate is fixed on the top surface of the supporting plate.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: the device can ensure that the position and the angle are accurate when the machine tool clamps the automobile steering rack, and improves the processing quality of the rack.

Drawings

Fig. 1 is a schematic structural view of the clamping and positioning device for the steering rack of the automobile in a position state according to the preferred embodiment of the present invention, wherein the steering rack of the automobile is mounted on the positioning block.

Fig. 2 is a schematic structural view of the clamping and positioning device for the steering rack of the automobile in the preferred embodiment of the present invention at another position, wherein the steering rack of the automobile is mounted on the positioning block.

Fig. 3 is a schematic view of the internal structure of the push rod assembly according to the preferred embodiment of the present invention.

Fig. 4 is a schematic view of the internal structure of the positioning block according to the preferred embodiment of the present invention.

Description of reference numerals:

automobile steering rack 1000

Positioning and clamping mechanism 2000

Pushrod assembly 2100

First spring 2110

Sleeve 2120

Square hole 2121

Square telescopic shaft 2130

Limiting part 2131

Groove 2132

First threaded hole 2133

Positioning block 2200

Square cut 2210

Projection 2220

Stepped bore 2221

Push rod mounting plate 2300

Slotted hole 2310

Flange face throat plug nut 2400

Second spring 2500

Sliding mechanism 3000

Securing assembly 3100

Bottom plate 3110

Guide rail 3120

Sliding assembly 3200

Sliding block 3210

Supporting plate 3220

Mounting plate 4000

Limit bolt 5000

Spacing bolt mounting plate 6000

Detailed Description

The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the actual processing process, in order to ensure the processing quality of the automobile steering rack, the clamping quality is ensured, and on one hand, the horizontality and the position of the central line of the automobile steering rack are accurate when clamping is required; and on the other hand, the circumferential angle position of the automobile steering rack is accurate when the clamping is required to be ensured. Meanwhile, the processing and clamping mode of the automobile steering rack is similar to the clamping mode of a bench clamp, so that the automobile steering rack is prevented from horizontally moving in the clamping process, and the positioning device is ensured to be capable of synchronously and horizontally moving.

To meet the above requirement, fig. 1 and 2 show a clamping and positioning device for a steering rack of an automobile, wherein one end of the steering rack 1000 of the automobile is provided with a pair of parallel horizontal clamping surfaces (not shown in the figure). The clamping and positioning device for the automobile steering rack comprises: a positioning and clamping mechanism 2000, a sliding mechanism 3000 and a mounting plate 4000. The front end of the positioning and clamping mechanism 2000 has a square notch 2210, and the square notch 2210 is matched with the two horizontal clamping surfaces. The sliding mechanism 3000 includes a fixed member 3100 and a sliding member 3200, and the sliding member 3200 is horizontally slidably coupled to the fixed member 3100. The mounting plate 4000 is fixed to the sliding assembly 3200, and the positioning and holding mechanism 2000 is vertically movably connected to the mounting plate 4000.

When the device is used for positioning, one end of the automobile steering rack 1000 is inserted into the square notch 2210, and the machined surface of the automobile steering rack 1000 can be always kept horizontal in the clamping process by adjusting the angle of the square notch 2210. In addition, the horizontal height of the automobile steering rack 1000 can be adjusted by adjusting the vertical position relationship between the positioning clamping mechanism 2000 and the mounting plate 4000, so that the center line of the automobile steering rack is coincident with the center line of a machine tool, and the machining precision is improved. In addition, the sliding mechanism 3000 can meet the requirement of horizontal movement in the clamping process. When the device is used for processing the automobile steering racks of the same type in batches, the angle of the square notch 2210 and the height of the positioning and clamping mechanism 2000 are adjusted only when the first piece is processed, and subsequent adjustment is not needed, so that the clamping efficiency is effectively improved, and the operation intensity is reduced.

In this embodiment, the positioning and clamping mechanism 2000 includes a push rod assembly 2100, a positioning block 2200 and a push rod mounting plate 2300, wherein the push rod assembly 2100 is fixed on the push rod mounting plate 2300, the end of the push rod assembly 2100 is connected to the positioning block 2200, the square notch 2210 is located on the positioning block 2200, and the push rod mounting plate 2300 is vertically movably connected to the mounting plate 4000.

In order to adjust the height of the push rod mounting plate 2300, the push rod mounting plate 2300 is provided with an elongated hole 2310 extending in the vertical direction, and the push rod mounting plate 2300 is connected to the mounting plate 4000 through the elongated hole 2310.

In actual processing, the other end of the steering rack 1000 is connected to another positioning device, and in the case that the opening of the clamping device is not large, the steering rack 1000 is best inserted or removed along the axial direction in order to be placed between the two positioning devices. To achieve this, as shown in fig. 3, the push rod assembly 2100 includes a sleeve 2120, a first spring 2110, and a square extension shaft 2130, the sleeve 2120 is connected to the push rod mounting plate 2300, the first spring 2110 is installed in a receiving cavity of the sleeve 2120, one end of the sleeve 2120 is opened with a square hole 2121, one end of the square extension shaft 2130 is pressed against the first spring 2110 through the square hole 2121, and the other end of the square extension shaft 2130 is connected to the positioning block 2200.

During installation, the positioning block 2200 is firstly pressed to enable the square telescopic shaft 2130 to contract towards the direction until the distance between the positioning block 2200 and the other positioning device is larger than the length of the automobile steering rack 1000, then the other end of the automobile steering rack 1000 is inserted into the other positioning device, the positioning block 2200 is loosened, and the positioning block 2200 is always tightly pressed on one end of the automobile steering rack 1000.

In order to prevent the square telescopic shaft 2130 from falling out of the square hole 2121 when not pressed by force, one end of the square telescopic shaft 2130 located in the sleeve 2120 has a stopper 2131, and the stopper 2131 can abut against an inner end surface of the square hole 2121.

As will be understood from fig. 3 and 4, the square telescopic shaft 2130 located outside the sleeve 2120 has a recess 2132 at one end, the positioning block 2200 has a protrusion 2220, the recess 2132 matches with the protrusion 2220, the recess 2132 has a first threaded hole 2133 therein, the protrusion 2220 has a stepped hole 2221 therein, and a screw passes through the stepped hole 2221 and is connected to the first threaded hole 2133. The matching of the grooves 2132 and the protrusions 2220 can ensure the accuracy of the connection position of the grooves and the protrusions, and the assembly difficulty is reduced.

In this embodiment, the outer circumference of the sleeve 2120 is provided with an external thread, the push rod mounting plate 2300 is provided with a second threaded hole (not shown), the sleeve 2120 is connected to the second threaded hole, the positioning and clamping mechanism 2000 further comprises a flange throat plug nut 2400, and the flange throat plug nut 2400 is connected to the external thread of the sleeve 2120 and presses against the push rod mounting plate 2300. The flange face throat plug nut 2400 and the second threaded hole form a double-nut structure, so that looseness of the sleeve 2120 can be effectively prevented.

In this embodiment, the positioning and clamping mechanism 2000 further includes a second spring 2500, and two ends of the second spring 2500 are respectively pressed on the bottom surface of the push rod mounting plate 2300 and the top surface of the sliding assembly 3200 along the vertical direction. The supporting force of the second spring 2500 on the push rod mounting plate 2300 is utilized to facilitate the adjustment of the height position of the push rod mounting plate 2300 on the mounting plate 4000.

In order to further improve the accuracy of the horizontal height adjustment of the automobile steering rack 1000 and reduce the difficulty of the operation, the automobile steering rack clamping and positioning device further comprises a limit bolt 5000 and a limit bolt mounting plate 6000, a third threaded hole (not shown in the figure) is formed in the limit bolt mounting plate 6000, and the limit bolt 5000 penetrates through the third threaded hole to abut against the top surface of the push rod mounting plate 2300.

In the scheme, the fixed assembly 3100 comprises a base plate 3110 and a guide rail 3120, the sliding assembly 3200 comprises a sliding block 3210 and a supporting plate 3220, the guide rail 3120 is installed on the top surface of the base plate 3110, the sliding block 3210 is installed on the bottom surface of the supporting plate 3220, the guide rail 3120 is matched with the sliding block 3210, and the mounting plate 4000 is fixed on the top surface of the supporting plate 3220. The base plate 3110 is fixed to the machine tool.

The principle and the flow of positioning by using the device are as follows:

firstly, the automobile steering rack 1000 is clamped by a machine tool, the central line of the automobile steering rack 1000 is overlapped with the central line of the machine tool, at the moment, the positioning block 2200 is connected with one end of the automobile steering rack 1000, the push rod mounting plate 2300 is adjusted up and down by screwing the limit bolt 5000, and the central lines of the positioning block 2200 and the push rod assembly 2100 are kept consistent with the central lines of the automobile steering rack 1000 and the machine tool. Then, the machine tool loosens the automobile steering rack 1000, and the upper end face of the positioning block 2200 is leveled through the sleeve 2120 and the flange face throat plug nut 2400, so that the machining face of the automobile steering rack 1000 is guaranteed to be leveled. Then, the machine tool clamps the automobile steering rack 1000 again, and in the clamping process, the automobile steering rack 1000 drives the positioning block 2200 to move horizontally, and the positioning block 2200 is connected with the push rod assembly 2100, so that the supporting plate 3220 and the slider 3210 are indirectly driven to move on the guide rail 3120. When moved into position, the support plate 3220 may be secured to the base plate 3110 using a fastening device. When the automobile steering rack 1000 needs to be taken down, the push rod assembly 2100 is arranged, so long as the automobile steering rack 1000 is pressed on the square telescopic shaft 2130 along the axial direction when the machine tool is loosened, and the automobile steering rack 1000 can be taken down easily.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The utility model provides an auto steering rack clamping positioner, the one end of auto steering rack has a pair of parallel horizontal clamping face, its characterized in that, and it includes:

2. The clamping and positioning device for the steering rack of the automobile as claimed in claim 1, wherein the positioning and clamping mechanism comprises a push rod assembly, a positioning block and a push rod mounting plate, the push rod assembly is fixed on the push rod mounting plate, the end of the push rod assembly is connected to the positioning block, the square notch is located on the positioning block, and the push rod mounting plate is vertically movably connected with the mounting plate.

3. The clamping and positioning device for the automobile steering rack according to claim 2, wherein the push rod mounting plate is provided with an oblong hole extending in the vertical direction, and the push rod mounting plate is connected to the mounting plate through the oblong hole.

4. The clamping and positioning device for the steering rack of the automobile according to claim 3, wherein the push rod assembly comprises a sleeve, a first spring and a square telescopic shaft, the sleeve is connected to the push rod mounting plate, the first spring is mounted in a containing cavity of the sleeve, a square hole is formed in one end of the sleeve, one end of the square telescopic shaft penetrates through the square hole and presses the first spring, and the other end of the square telescopic shaft is connected to the positioning block.

5. The clamping and positioning device for the automobile steering rack as claimed in claim 4, wherein one end of the square telescopic shaft located in the sleeve is provided with a limiting part, and the limiting part can abut against the inner end face of the square hole.

6. The clamping and positioning device for the automobile steering rack according to claim 4, wherein a groove is formed at one end of the square telescopic shaft outside the sleeve, a protrusion is arranged on the positioning block, the groove is matched with the protrusion, a first threaded hole is formed in the groove, a stepped hole is formed in the protrusion, and a screw passes through the stepped hole and is connected to the first threaded hole.

7. The automobile steering rack clamping and positioning device as claimed in claim 4, wherein an external thread is formed on the outer periphery of the sleeve, a second threaded hole is formed in the push rod mounting plate, the sleeve is connected to the second threaded hole, the positioning and clamping mechanism further comprises a flange face throat plug nut, and the flange face throat plug nut is connected to the external thread of the sleeve and presses the push rod mounting plate.

8. The clamping and positioning device for the steering rack of the automobile as claimed in claim 3, wherein the positioning and clamping mechanism further comprises a second spring, and two ends of the second spring are respectively pressed on the bottom surface of the push rod mounting plate and the top surface of the sliding assembly along the vertical direction.

9. The clamping and positioning device for the automobile steering rack according to claim 8, further comprising a limiting bolt and a limiting bolt mounting plate, wherein a third threaded hole is formed in the limiting bolt mounting plate, and the limiting bolt penetrates through the third threaded hole and abuts against the top surface of the push rod mounting plate.

10. The clamping and positioning device for the steering rack of the automobile as claimed in claim 1, wherein the fixing component comprises a bottom plate and a guide rail, the sliding component comprises a sliding block and a supporting plate, the guide rail is mounted on the top surface of the bottom plate, the sliding block is mounted on the bottom surface of the supporting plate, the guide rail is matched with the sliding block, and the mounting plate is fixed on the top surface of the supporting plate.