CN212095164U - Gear press-fit tool for control mechanism of automobile air circulation system - Google Patents
Gear press-fit tool for control mechanism of automobile air circulation system Download PDFInfo
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- CN212095164U CN212095164U CN202020312680.1U CN202020312680U CN212095164U CN 212095164 U CN212095164 U CN 212095164U CN 202020312680 U CN202020312680 U CN 202020312680U CN 212095164 U CN212095164 U CN 212095164U
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- pressure head
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- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The utility model discloses a gear press-fit tool of an automobile air circulation system control mechanism, belonging to a gear part assembly tool; the gear part assembling tool is good in assembling precision, high in efficiency and simple and safe to operate. The hydraulic oil cylinder positioning device comprises a hydraulic oil cylinder and a positioning mechanism which are fixed on a frame; the frame is composed of a base (4), a vertical column (1) and a mounting plate (10), and a hydraulic oil cylinder (9) is fixed on the mounting plate (10); the positioning mechanism consists of a positioning seat (2) fixed on the cushion block (3), a positioning pin (12) positioned in the positioning seat and a spring (14); the pressure head (8) is fixedly connected with the hydraulic oil cylinder (9), and the lower end of the pressure head (8) is provided with a suction hole (13) communicated with the inner cavity of the pressure head. The utility model has simple structure and labor-saving and convenient operation; the tool is a special tool for press-fitting the gear part.
Description
Technical Field
The utility model relates to a frock is joined in marriage to gear part pressure especially relates to a frock is joined in marriage to car air circulation system control mechanism gear pressure.
Background
The control mechanism of the air circulation system of the automobile mainly comprises a motor and a multi-stage gear reduction mechanism which are arranged in a shell, and is a device for regulating the air circulation in the automobile. The gear component assembling process includes setting the gear on the concave cushion block, positioning the sleeve gear shaft vertically inside the gear hole and pressing the gear shaft into the gear hole with the hydraulic oil cylinder. Although this method is relatively simple, it has the following drawbacks:
1) the gear shaft and the gear hole are in interference fit, so that the gear shaft and the gear hole are difficult to ensure to be coaxial, and the gear shaft is easy to skew in the press-fit process to cause damage to the gear hole or the gear shaft; the technical requirements for workers are high.
2) In order to avoid shaking, skewing or lodging of the gear shaft in the press-fit process, the gear shaft is usually manually held; not only has high labor intensity and low efficiency, but also has potential safety hazard.
Disclosure of Invention
In order to overcome the above-mentioned defect that exists among the prior art, the utility model aims at providing a frock is joined in marriage to car air circulation system control mechanism gear pressure that assembly precision is good, efficient, easy operation safety.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the hydraulic oil cylinder positioning device comprises a hydraulic oil cylinder and a positioning mechanism which are fixed on a frame; the frame consists of an upright post fixed on the base and a mounting plate fixed on the upright post, and the hydraulic oil cylinder is fixed on the mounting plate; the positioning mechanism is composed of a cushion block fixed on the base, a positioning seat fixed on the surface of the cushion block, a positioning pin positioned in the positioning seat and extending upwards, and a spring for pushing the positioning pin upwards; and a pressure head fixedly connected with the hydraulic oil cylinder is arranged above the positioning mechanism, the pressure head is of a hollow rod-shaped structure, and the lower end of the pressure head is provided with a suction hole communicated with the inner cavity of the pressure head.
The mounting plate and the upright post are locked and fixed by an adjusting screw fixed on the mounting plate; the cushion block and the base are both provided with U-shaped ear grooves, and the cushion block and the base are fixedly connected through bolts penetrating through the U-shaped ear grooves.
Compared with the prior art, the utility model discloses owing to adopted above-mentioned technical scheme, consequently have following advantage:
1) the spring positioning pin is added in the positioning seat, so that the gear can be quickly positioned, the center of a gear hole is ensured to be superposed with the center of the hydraulic oil cylinder, and the wheel shaft can be prevented from being skewed due to uneven stress.
2) Because the rod-shaped pressure head matched with the inner surface of the wheel shaft is adopted, the sleeve-shaped wheel shaft can be positioned by utilizing the outer surface of the pressure head, the defect that the wheel shaft is easy to skew, rock or fall is thoroughly avoided, and the press-fitting precision between the wheel shaft and the gear hole is effectively improved.
3) Because the pressure head adopts a hollow rod-shaped structure and the bottom of the pressure head is provided with the suction hole communicated with the inner cavity of the pressure head, a workpiece (a sleeve-shaped wheel shaft) can be absorbed by negative pressure, and the defect that the workpiece needs to be manually held by hands in the process of pressing down the wheel shaft is thoroughly avoided; not only reduces the labor intensity and improves the working efficiency, but also eliminates the potential safety hazard and improves the operation safety.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a view taken in the direction A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken at C-C of FIG. 2;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 3;
fig. 6 is a cross-sectional view E-E of fig. 3.
In the figure: the device comprises an upright post 1, a positioning seat 2, a cushion block 3, a base 4, a bolt 5, a gear 6, a gear shaft 7, a pressure head 8, a hydraulic oil cylinder 9, a mounting plate 10, an adjusting screw 11, a positioning pin 12, a suction hole 13 and a spring 14.
Detailed Description
The invention will be further described with reference to the following drawings and specific examples:
as shown in fig. 1 to 6, the frame is composed of a column 1 fixed to a base 4 and a mounting plate 10 fixed to the column, and a hydraulic cylinder 9 is fixed to the mounting plate 10.
A positioning mechanism is arranged below the hydraulic oil cylinder 9 and consists of a cushion block 3 fixed on a base 4, a positioning seat 2 fixed on the surface of the cushion block, a positioning pin 12 positioned in the positioning seat and extending upwards, and a spring 14 for pushing the positioning pin upwards.
A pressure head 8 fixedly connected with a piston rod of a hydraulic oil cylinder 9 is arranged above the fixed mechanism, and the pressure head is of a hollow rod-shaped structure; the lower end of the pressure head 8 is provided with a suction hole 13 communicated with the inner cavity of the pressure head.
In order to conveniently adjust the hydraulic oil cylinder 9 up and down to meet the press-fit requirements of gear parts with different specifications, the mounting plate 10 and the upright post 1 are locked and fixed through an adjusting screw 11.
In order to ensure that the axes of the positioning pin 12 and the pressure head 8 coincide by adjusting the position of the cushion block 3, the cushion block 3 and the base 4 are both provided with U-shaped grooves, and the cushion block 3 and the base 4 are fixedly connected through bolts 5 penetrating through the U-shaped grooves.
When in use, the pressure head 8 is connected with a vacuum pump (not shown in the figures) through an air pipe.
During operation, the gear 6 is positioned on the surface of the positioning seat 2 through the positioning pin 12 matched with the kidney-shaped gear hole, the sleeve-shaped gear shaft 7 is sleeved at the lower end of the pressure head 8, and the vacuum valve (not shown in the figure) is opened, so that the gear shaft 7 can be adsorbed on the pressure head 8 under the action of negative pressure; starting the hydraulic oil cylinder 9, and vertically pressing the gear shaft 7 into a kidney-shaped gear hole of the workpiece 1; meanwhile, the gear shaft 7 pushes the positioning pin 12 out of the gear hole downwards until the gear shaft 7 is pressed in place; and (4) closing the vacuum valve, eliminating the negative pressure, lifting a piston rod of the hydraulic oil cylinder 9 upwards and separating the piston rod from the sleeve-shaped gear shaft 7, and completing press fitting.
Claims (3)
1. A gear press-fit tool for an automobile air circulation system control mechanism comprises a hydraulic oil cylinder and a positioning mechanism, wherein the hydraulic oil cylinder and the positioning mechanism are fixed on a rack; the method is characterized in that: the frame consists of a stand column (1) fixed on a base (4) and a mounting plate (10) fixed on the stand column, and a hydraulic oil cylinder (9) is fixed on the mounting plate (10);
the positioning mechanism is composed of a cushion block (3) fixed on a base (4), a positioning seat (2) fixed on the surface of the cushion block, a positioning pin (12) located in the positioning seat and extending upwards, and a spring (14) for pushing the positioning pin upwards;
a pressure head (8) fixedly connected with the hydraulic oil cylinder (9) is arranged above the positioning mechanism, the pressure head is of a hollow rod-shaped structure, and a suction hole (13) communicated with the inner cavity of the pressure head (8) is formed in the lower end of the pressure head.
2. The automobile air circulation system control mechanism gear press-fit tool according to claim 1, characterized in that: the mounting plate (10) and the upright post (1) are locked and fixed by an adjusting screw (11) fixed on the mounting plate (10).
3. The automobile air circulation system control mechanism gear press-fit tool according to claim 1 or 2, characterized in that: u-shaped ear grooves are formed in the cushion block (3) and the base (4), and the cushion block (3) and the base (4) are fixedly connected through bolts (5) penetrating through the U-shaped ear grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020312680.1U CN212095164U (en) | 2020-03-13 | 2020-03-13 | Gear press-fit tool for control mechanism of automobile air circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020312680.1U CN212095164U (en) | 2020-03-13 | 2020-03-13 | Gear press-fit tool for control mechanism of automobile air circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212095164U true CN212095164U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020312680.1U Active CN212095164U (en) | 2020-03-13 | 2020-03-13 | Gear press-fit tool for control mechanism of automobile air circulation system |
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| Country | Link |
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| CN (1) | CN212095164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360511A (en) * | 2020-03-13 | 2020-07-03 | 贵州华烽汽车零部件有限公司 | Gear part press-fit device of automobile air circulation system control mechanism |
-
2020
- 2020-03-13 CN CN202020312680.1U patent/CN212095164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360511A (en) * | 2020-03-13 | 2020-07-03 | 贵州华烽汽车零部件有限公司 | Gear part press-fit device of automobile air circulation system control mechanism |
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