Machining and positioning device for automobile steering gear rack

Abstract

The utility model relates to a machining and positioning device for an automobile steering gear rack. The positioning device solves the technical problems that an existing positioning device cannot well clamp and fix a rack, and back-and-forth disassembly is needed by mistake during production changing. Comprising a fixing base, a positioning base and a pressing rod base are arranged on one side of the fixing base, a positioning rod is movably arranged on the positioning base through an elastic movable installation structure, and a pressing rod body which can swing in the circumferential direction of the positioning rod and can press downwards in the direction of the positioning rod is arranged on the pressing rod base through a spinning driving structure. A clamping space used for positioning a steering gear rack is formed between the positioning rod and the pressing rod body, and positioning teeth corresponding to teeth of the steering gear rack are arranged at the upper end of the positioning rod. The positioning device has the advantages that the steering gear rack is fixed through the positioning seat and the pressing rod seat, it is ensured that the fixed position is kept in the machining process, size deviation caused by inaccurate positioning is avoided, and therefore the machining precision and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rack processing and positioning equipment of direction machine, specifically relates to a rack processing and positioning device for automobile direction machine. BACKGROUND

[0002] The rack is an important connecting component for supporting steering in the automobile steering gear, is mostly applied in chassis steering gear execution components, and is a frequently-moving and high-technical requirement moving component. The traditional rack clamping and positioning device cannot well clamp and fix the rack, the rack can be loose in the processing process, the processing precision is affected, the processing quality is unqualified, and generally the positioning device can only meet one workpiece and cannot meet multiple workpieces, so when changing production, the installation error, missing and other phenomena can easily occur during disassembly and assembly. SUMMARY

[0003] The utility model aims at the above -mentioned problem, provides a kind of rack processing and positioning device for automobile direction machine.

[0004] To achieve the above object, the utility model adopts the following technical scheme: a kind of rack processing and positioning device for automobile direction machine, including fixed seat, the fixed seat one side is respectively equipped with positioning seat and pressure rod seat, the positioning seat is movably equipped with positioning rod by elastic movable mounting structure, the pressure rod seat is equipped with the pressure rod body that can be oscillated in the direction of positioning rod and can be pressed in the direction of positioning rod by spinning pressure drive structure, the positioning rod and pressure rod body between form the clamping space for positioning direction machine rack, and the positioning rod upper end is equipped with the positioning tooth that can be corresponded with the tooth of direction machine rack. The tooth of direction machine rack is corresponded with the positioning tooth, the pressure rod body is moved to the upper of positioning rod by spinning pressure drive structure and moves downward, so that positioning rod and pressure rod body are pressed tightly direction machine rack, and positioning tooth can ensure that direction machine rack does not move axially, and the stability of processing is improved.

[0005] In the above-mentioned rack processing and positioning device for automobile direction machine, the fixed seat is wedge-shaped, and the fixed seat one side has the oblique installation portion that is arranged obliquely, and the positioning seat and the pressure rod seat are arranged on the oblique installation portion respectively. Reasonable positioning design makes the processing process more smooth, reduces the adjustment and the actual finishing in the processing process, to improve production efficiency.

[0006] In the above-mentioned rack processing and positioning device for automobile direction machine, the oblique installation portion is equipped with positioning seat mounting hole, one end of the positioning seat can be rotationally arranged in the positioning seat mounting hole, and the positioning seat locking structure is arranged between the positioning seat and the fixed seat. The positioning seat is arranged in the positioning seat mounting hole, so that the normal operation of the positioning rod can be ensured.

[0007] In the above-mentioned positioning device for rack machining of automobile steering gear, the positioning seat locking structure comprises a plurality of positioning seat locking holes radially arranged on one side of the fixed seat and communicated with the positioning seat mounting hole, a plurality of positioning seat locking bolts are arranged in the positioning seat locking holes and abut against the outer side of the positioning seat, and a scale line is arranged on the inclined mounting portion and located on the outer side of the positioning seat mounting hole, and a mark line is arranged on the outer side of the positioning seat and corresponds to the scale line. The positioning seat is adjusted by the scale line and the mark line, and the positioning seat is fixed by the positioning seat locking bolts, so as to ensure the stability of the positioning seat and the positioning rod.

[0008] In the above-mentioned positioning device for rack machining of automobile steering gear, the elastic movable mounting structure comprises a positioning rod movable hole coaxially communicated with the positioning seat mounting hole and arranged in the fixed seat, the positioning rod is movably arranged in the positioning seat through the elastic movable mounting assembly, the positioning seat is in a cylindrical shape, the upper end of the positioning seat is closed and the lower end is open, the upper end of the positioning rod passes through the upper end of the positioning seat, and the lower end of the positioning rod passes through the lower end of the positioning seat and extends into the positioning rod movable hole.

[0009] In the above-mentioned positioning device for rack machining of automobile steering gear, the elastic movable mounting assembly comprises a limiting portion arranged on the outer side of the positioning rod and located in the positioning seat, the lower end of the positioning seat is closed by the end cover, the lower end of the positioning rod penetrates through the end cover, a return spring is sleeved on the positioning rod, one end of the return spring acts on the limiting portion, and the other end acts on the end cover. When the positioning rod moves downward, the return spring starts to tighten, and at the same time, the return spring also exerts an upward moving reaction force on the positioning rod, so as to ensure the stability of the positioning rod.

[0010] In the above-mentioned positioning device for rack machining of automobile steering gear, the diameter of the positioning seat mounting hole is equal to the diameter of the positioning seat, the upper end of the positioning seat has an upper passing hole through which the upper end of the positioning rod passes, the inner side of the upper passing hole has a sealing ring abutting against the outer side of the positioning rod, the end cover has a lower passing hole through which the lower end of the positioning rod passes, the end cover is inserted into the open lower end of the positioning seat, the outer side of the lower end of the positioning seat has an end cover positioning hole arranged radially, and the end cover positioning hole has an end cover positioning bolt abutting against the outer side of the end cover. The end cover is fixed by the end cover positioning bolt, so that the end cover and the positioning seat are firmly connected, and the normal operation of the return spring is ensured.

[0011] In the above-mentioned one kind of for automobile steering gear rack processing positioning device, the fixed seat one side is equipped with the strip detection hole that is communicated with the positioning rod movable hole, the fixed seat one side is equipped with the inductor fixed seat through the positioning seat locking bolt, the inductor fixed seat is equipped with the inductor fixed hole that corresponds with the strip detection hole, the inductor fixed hole is installed with the position inductor that is inserted in the strip detection hole and corresponds with the positioning rod outside.

[0012] In the above-mentioned one kind of for automobile steering gear rack processing positioning device, the pressure rod seat is fixed on the inclined installation part through a plurality of installation bolts, and the rotary pressure driving structure is a rotary down pressure cylinder arranged on the pressure rod seat, and one end of the pressure rod body is fixedly arranged on the cylinder rod of the rotary down pressure cylinder.

[0013] In the above-mentioned one kind of for automobile steering gear rack processing positioning device, the positioning rod upper end is equipped with the installation groove that is in the shape of swallow tail, and the positioning tooth lower end is arranged in the installation groove, and the positioning tooth is fixedly connected with the installation groove through the fixed bolt. The positioning tooth is arranged in the installation groove and fixed through the fixed bolt. The structure design is conducive to the disassembly and replacement of the positioning tooth, can achieve rapid change production, and can adapt to steering gear racks of different sizes.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The device fixes the steering gear rack through the positioning seat and the pressure rod seat, ensures that the position is kept fixed during processing, avoids size deviation caused by inaccurate positioning, and thus improves processing precision and efficiency.

[0016] 2. The pressure rod body of the device can be adjusted up and down through the elastic movable mounting structure, and cooperates with the rotary pressure driving structure to realize locking, and the positioning tooth is arranged on the positioning rod through the installation groove, and the detachable structure improves practicability and is convenient and fast to operate.

[0017] 3. The device is installed with a position inductor on the fixed seat side, can detect clamping in place, and thus realizes positioning precision of 0.02mm or above.

[0018] 4. The positioning tooth of the device is detachably arranged in the installation groove, is simple in structure, can select corresponding models of positioning tooth according to steering gear racks of different sizes, and thus achieves the effect of rapid change production. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of the utility model.

[0020] Figure 2 It is the structure sectional view of the utility model.

[0021] Figure 3 is the structure diagram of the fixed seat in the utility model.

[0022] Figure 4 is the structure diagram of the positioning seat in the utility model.

[0023] Figure 5 is the structure diagram of the positioning rod in the utility model.

[0024] Figure 6 is the structure diagram of the end cover in the utility model.

[0025] In the figure: fixed seat 1, clamping space 11, inclined mounting portion 12, positioning seat mounting hole 13, scale line 14, strip detection hole 15, inductor fixed seat 16, inductor fixed hole 17, position inductor 18, positioning seat 2, positioning rod 21, positioning tooth 22, mark line 23, end cover 24, upper through hole 25, sealing ring 26, lower through hole 27, end cover positioning hole 28, installation groove 29, press rod seat 3, press rod body 31, elastic movable mounting structure 4, positioning rod movable hole 41, rotary pressing driving structure 5, rotary lower pressing cylinder 51, cylinder rod 52, positioning seat locking structure 6, positioning seat locking hole 61, elastic movable mounting assembly 7, limiting portion 71, return spring 72. DETAILED DESCRIPTION

[0026] The utility model will be made further detailed explanation in combination with the specific embodiment and the drawing.

[0027] As Figures 1-6 shown, a kind of for automobile steering gear rack processing positioning device, including fixed seat 1, fixed seat 1 side is equipped with positioning seat 2 and press rod seat 3 respectively, positioning seat 2 is movably provided with positioning rod 21 by elastic movable mounting structure 4, press rod body 31 that can be oscillated towards the direction of positioning rod 21 and can be pressed downwards towards the direction of positioning rod 21 is equipped on press rod seat 3 by rotary pressing driving structure 5, clamping space 11 for positioning steering gear rack is formed between positioning rod 21 and press rod body 31, and positioning tooth 22 that can be corresponding with the tooth of steering gear rack is equipped on the upper end of positioning rod 21.The tooth of steering gear rack is corresponding with positioning tooth 22, press rod body 31 is moved to the upper of positioning rod 21 by rotary pressing driving structure 5 and moves downwards, so that positioning rod 21 and press rod body 31 press steering gear rack, positioning tooth 22 can ensure that steering gear rack does not move axially at the same time, improve the stability of processing.

[0028] As Figure 1 shown, fixed seat 1 is wedge-shaped and fixed seat 1 side has inclined installation portion 12 arranged obliquely, and positioning seat 2 and press rod seat 3 are arranged on inclined installation portion 12 respectively. Reasonable positioning design makes the processing process more smooth, reduces the adjustment and actual finishing in processing process, so as to improve production efficiency.

[0029] As shown in Figure 3 , the inclined mounting portion 12 is provided with a positioning seat mounting hole 13, one end of the positioning seat 2 is circumferentially rotatably arranged in the positioning seat mounting hole 13, and the positioning seat 2 and the fixed seat 1 are provided with a positioning seat locking structure 6. The positioning seat 2 is arranged in the positioning seat mounting hole 13, which can ensure the normal operation of the positioning rod 21.

[0030] As shown in Figure 1 and Figure 3 , the positioning seat locking structure 6 includes a plurality of positioning seat locking holes 61 radially arranged on one side of the fixed seat 1 and connected with the positioning seat mounting hole 13, a plurality of positioning seat locking bolts abutting against the outer side of the positioning seat 2 are arranged in the positioning seat locking hole 61, the inclined mounting portion 12 is provided with a scale line 14 located on the circumferential outer side of the positioning seat mounting hole 13, and the outer side of the positioning seat 2 is provided with a mark line 23 corresponding to the scale line 14. The positioning seat 2 is adjusted by the scale line 14 and the mark line 23, and the positioning seat 2 is fixed by the positioning seat locking bolt, which ensures the stability of the positioning seat 2 and the positioning rod 21.

[0031] As shown in Figure 2 and Figure 5 , the elastic movable mounting structure 4 includes a positioning rod movable hole 41 arranged in the fixed seat 1 and coaxially connected with the positioning seat mounting hole 13, and the positioning rod 21 is movably arranged in the positioning seat 2 through the elastic movable mounting assembly 7. The positioning seat 2 is in a cylindrical shape, the upper end of the positioning seat 2 is closed, and the lower end is open. The upper end of the positioning rod 21 penetrates the upper end of the positioning seat 2, and the lower end of the positioning rod 21 penetrates the lower end of the positioning seat 2 and extends into the positioning rod movable hole 41.

[0032] The elastic movable mounting assembly 7 includes a limiting portion 71 arranged on the circumferential outer side of the positioning rod 21 and located in the positioning seat 2. The lower end of the positioning seat 2 is closed by the end cover 24, and the lower end of the positioning rod 21 penetrates the end cover 24. The positioning rod 21 is sleeved with a return spring 72, one end of the return spring 72 acts on the limiting portion 71, and the other end acts on the end cover 24. When the positioning rod 21 moves downward, the return spring 72 starts to tighten, and at the same time, the return spring 72 also exerts an upward moving reaction force on the positioning rod 21, thereby ensuring the stability of the positioning rod 21.

[0033] As shown in Figure 2 , Figure 4 and Figure 6As shown, the positioning seat mounting hole 13 has the same diameter as the positioning seat 2, the upper end of the positioning seat 2 has an upper passing hole 25 for the upper end of the positioning rod 21 to pass through, and the upper passing hole 25 has a sealing ring 26 on the circumferential inner side for abutting against the outer side of the positioning rod 21. The end cover 24 has a lower passing hole 27 for the lower end of the positioning rod 21 to pass through, the end cover 24 is inserted into the opening at the lower end of the positioning seat 2, and the outer side of the lower end of the positioning seat 2 has a radially arranged end cover positioning hole 28 in which an end cover positioning bolt is arranged for abutting against the outer side of the end cover 24. The end cover 24 is fixed by the end cover positioning bolt, so that the end cover 24 is firmly connected with the positioning seat 2, and the normal operation of the return spring 72 is ensured.

[0034] In combination Figure 1 And Figure 3 As shown, the fixed seat 1 has a strip-shaped detection hole 15 on one side which is connected with the positioning rod movable hole 41, and the fixed seat 1 has a sensor fixed seat 16 on one side which is provided with a sensor fixed hole 17 corresponding to the strip-shaped detection hole 15. The sensor fixed hole 17 is provided with a position sensor 18 which is inserted into the strip-shaped detection hole 15 and corresponds to the outer side of the positioning rod 21.

[0035] As shown, Figure 1 The pressure rod seat 3 is fixed on the inclined mounting part 12 by a plurality of mounting bolts, and the rotary pressure driving structure 5 is a rotary downward pressure cylinder 51 arranged on the pressure rod seat 3, and one end of the pressure rod body 31 is fixedly arranged on a cylinder rod 52 of the rotary downward pressure cylinder 51.

[0036] As shown, Figure 5 The upper end of the positioning rod 21 is provided with a dovetail-shaped mounting groove 29, and the lower end of the positioning tooth 22 is arranged in the mounting groove 29 and is fixedly connected with the mounting groove 29 by a fixing bolt. The positioning tooth 22 is arranged in the mounting groove 29 and is fixed by the fixing bolt, which is beneficial to the disassembly and replacement of the positioning tooth 22, can achieve quick production change, and can also adapt to direction machine racks of different sizes.

[0037] The principle of the embodiment is that:

[0038] The positioning seat 2 is adjusted by the marker line 23 and the scale line 14, the positioning tooth 22 is arranged in the mounting groove 29 of the positioning rod 21 after the adjustment is completed, the direction machine rack is placed above the positioning rod 21, the pressure rod body 31 is moved above the direction machine rack by the rotary pressure driving structure 5 and is moved downward, the positioning rod 21 starts to move downward, the return spring 72 starts to tighten, the position sensor 18 detects that the positioning rod 21 moves to the position, and the rotary pressure driving structure 5 stops running, so that the positioning of the direction machine rack is completed.

[0039] The specific embodiments described herein are merely illustrative of the present application. Various modifications or changes can be made to the specific embodiments described herein by those skilled in the art without departing from the spirit of the present application, or the scope of the appended claims.

[0040] Although the terms such as fixed seat 1, clamping space 11, inclined mounting portion 12, positioning seat mounting hole 13, scale line 14, strip-shaped detection hole 15, inductor fixing seat 16, inductor fixing hole 17, position inductor 18, positioning seat 2, positioning rod 21, positioning tooth 22, mark line 23, end cover 24, upper through hole 25, sealing ring 26, lower through hole 27, end cover positioning hole 28, mounting groove 29, pressure rod seat 3, pressure rod body 31, elastic movable mounting structure 4, positioning rod movable hole 41, rotary pressure driving structure 5, rotary lower pressure cylinder 51, cylinder rod 52, positioning seat locking structure 6, positioning seat locking hole 61, elastic movable mounting assembly 7, limiting portion 71, return spring 72 are used more frequently in the description, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A machining positioning device for a rack of a steering gear of a vehicle, comprising a fixed seat (1), characterized in that, The fixed seat (1) is provided with a positioning seat (2) and a pressing rod seat (3) on one side, the positioning seat (2) is movably provided with a positioning rod (21) through an elastic movable mounting structure (4), the pressing rod seat (3) is provided with a pressing rod body (31) which can swing in the circumferential direction and can be pressed downward towards the positioning rod (21) through a rotary pressing driving structure (5), a clamping space (11) for positioning the rack of the steering gear is formed between the positioning rod (21) and the pressing rod body (31), and the upper end of the positioning rod (21) is provided with positioning teeth (22) corresponding to the teeth of the rack of the steering gear.

2. The positioning device for machining the rack of the steering gear of the vehicle according to claim 1, characterized in that, The fixed seat (1) is wedge-shaped, and the fixed seat (1) is provided with an inclined mounting portion (12) on one side, and the positioning seat (2) and the pressing rod seat (3) are arranged on the inclined mounting portion (12).

3. The positioning device for machining the rack of the steering gear of the vehicle according to claim 2, characterized in that, The inclined mounting portion (12) is provided with a positioning seat mounting hole (13), one end of the positioning seat (2) is rotatably arranged in the positioning seat mounting hole (13), and a positioning seat locking structure (6) is arranged between the positioning seat (2) and the fixed seat (1).

4. The positioning device for machining the rack of the steering gear of the vehicle according to claim 3, characterized in that, The positioning seat locking structure (6) comprises a plurality of positioning seat locking holes (61) arranged radially on one side of the fixed seat (1) and connected with the positioning seat mounting hole (13), a plurality of positioning seat locking bolts abutting against the outer side of the positioning seat (2) are arranged in the positioning seat locking hole (61), the inclined mounting portion (12) is provided with a scale line (14) located on the circumferential outer side of the positioning seat mounting hole (13), and the outer side of the positioning seat (2) is provided with a mark line (23) corresponding to the scale line (14).

5. The positioning device for machining the rack of the steering gear of the vehicle according to claim 4, characterized in that, The elastic movable mounting structure (4) comprises a positioning rod movable hole (41) arranged in the fixed seat (1) and coaxially connected with the positioning seat mounting hole (13), the positioning rod (21) is movably arranged in the positioning seat (2) through an elastic movable mounting assembly (7), the positioning seat (2) is cylindrical, the upper end of the positioning seat (2) is closed, and the lower end of the positioning seat (2) is open, the upper end of the positioning rod (21) penetrates through the upper end of the positioning seat (2), and the lower end of the positioning rod (21) penetrates through the lower end of the positioning seat (2) and extends into the positioning rod movable hole (41).

6. The positioning device for machining the rack of the steering gear of a vehicle according to claim 5, wherein The elastic movable mounting assembly (7) comprises a limiting portion (71) arranged on the circumferential outer side of the positioning rod (21) and located in the positioning seat (2), the lower end of the positioning seat (2) is closed through an end cover (24), the lower end of the positioning rod (21) penetrates through the end cover (24), a return spring (72) is sleeved on the positioning rod (21), one end of the return spring (72) acts on the limiting portion (71), and the other end of the return spring (72) acts on the end cover (24).

7. The apparatus for machining and positioning the rack of the steering engine of a vehicle according to claim 6, wherein, The positioning seat mounting hole (13) has the same diameter as the positioning seat (2), the upper end of the positioning seat (2) has an upper through hole (25) for the upper end of the positioning rod (21) to pass through, the circumferential inner side of the upper through hole (25) has a sealing ring (26) abutting against the outer side of the positioning rod (21), the end cover (24) has a lower through hole (27) for the lower end of the positioning rod (21) to pass through, the end cover (24) is inserted into the open lower end of the positioning seat (2), the outer side of the lower end of the positioning seat (2) has a radially arranged end cover positioning hole (28), and the end cover positioning hole (28) is provided with an end cover positioning bolt abutting against the outer side of the end cover (24).

8. The apparatus for machining and positioning the rack of the steering engine of a vehicle according to claim 5, wherein, One side of the fixing seat (1) is provided with a strip-shaped detection hole (15) communicating with the positioning rod movable hole (41), one side of the fixing seat (1) is provided with a sensor fixing seat (16) through a positioning seat locking bolt, the sensor fixing seat (16) is provided with a sensor fixing hole (17) corresponding to the strip-shaped detection hole (15), and the sensor fixing hole (17) is provided with a position sensor (18) inserted into the strip-shaped detection hole (15) and corresponding to the outer side of the positioning rod (21).

9. The apparatus for machining and positioning the rack of the steering engine of a vehicle according to claim 2, wherein, The pressing rod seat (3) is fixed on the inclined mounting part (12) through a plurality of mounting bolts, the rotary pressing driving structure (5) is a rotary downward pressing cylinder (51) arranged on the pressing rod seat (3), and one end of the pressing rod body (31) is fixedly arranged on a cylinder rod (52) of the rotary downward pressing cylinder (51).

10. The apparatus for machining and positioning the rack of the steering engine of a vehicle according to claim 1, wherein, The upper end of the positioning rod (21) is provided with a dovetail-shaped mounting groove (29), the lower end of the positioning tooth (22) is arranged in the mounting groove (29), and the positioning tooth (22) is fixedly connected with the mounting groove (29) through a fixing bolt.

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