Taper pin positioning and quick-changing mechanism

Abstract

The invention discloses a taper pin positioning and quick-changing mechanism. The taper pin positioning and quick-changing mechanism comprises a first tool fixing part, a second tool fixing part, a taper pin positioning part, a first-stage vertical spring, a first-stage pattern pressure head fixing part, a second-stage vertical spring, a second-stage pattern pressure head fixing part and a butt joint pressure head positioning anti-falling part. The taper pin positioning device has the beneficial effects that the first-stage vertical spring and the second-stage vertical spring are used, so that the taper pin positioning part is in close fit, a positioning gap is eliminated, and the positioning precision is improved. And moreover, model changing is simple, operation is convenient, the success rate of one-time model changing is increased, and high flexibility and high compatibility of the whole assembly line are improved to a great extent.

Description

Technical Field

[0001] The invention relates to the technical field of tooling changeover, in particular to a taper pin positioning quick-change mechanism. Background Art

[0002] The automotive industry is developing rapidly, and product iteration is increasing. While products are rapidly upgraded, they also require compatibility of product assembly lines. In this context, highly compatible assembly lines will become the main trend in the future. However, due to the special high-precision requirements of the press-fitting station, how to choose the connection method for tooling changeover has become a major difficulty. At present, one type of changeover in the automotive industry is the form of fixing with stopper positioning screws. Its disadvantages are: removing and installing screws increases the changeover time. Another type of changeover is the positioning match of the shaft and the hole. After the tooling is inserted into the positioning structure, it is fixed with a knob plunger. Its disadvantage is: plugging and unplugging will lose the positioning accuracy. Summary of the invention

[0003] The invention aims to solve the technical problems of the prior art and provide a novel taper pin positioning quick-change mechanism.

[0004] In order to achieve this purpose, the technical solution of the present invention is as follows: a cone pin positioning quick-change mechanism, comprising: a tool fixing part one, a tool fixing part two, a cone pin positioning part, a primary vertical spring, a primary flower-shaped pressure head fixing part, a secondary vertical spring, a secondary flower-shaped pressure head fixing part and a docking pressure head positioning anti-falling part, the cone pin positioning part has a conical inner hole that is small at the top and large at the bottom, the cone pin positioning part is inside the tool fixing part one, the primary flower-shaped pressure head fixing part and the secondary flower-shaped pressure head fixing part are both inside the tool fixing part two, and the primary flower-shaped pressure head fixing part and the secondary flower-shaped pressure head fixing part can be moved along the tool fixing part two Sliding up and down, the first-level vertical spring is between the cone pin positioning part and the first-level flower-shaped pressure head fixing part, and the second-level vertical spring is between the second-level flower-shaped pressure head fixing part and the first-level flower-shaped pressure head fixing part; when the docking pressure head positioning anti-falling part is inserted into the cone pin positioning part, the first-level vertical spring is compressed, and the first-level vertical spring exerts a downward driving force on the cone pin positioning part, so that the docking pressure head positioning anti-falling part fits with the cone pin positioning part, and at the same time, the second-level vertical spring is also compressed, and the second-level vertical spring cooperates with the tooling fixing part 2 to exert an upward driving force on the cone pin positioning part.

[0005] As a preferred solution of the cone pin positioning quick-change mechanism, the cone pin positioning part, the first-level flower-shaped press head fixing part and the second-level flower-shaped press head fixing part have a common anti-rotation part. The anti-rotation part is a vertical axis, which passes through the cone pin positioning part, the first-level flower-shaped press head fixing part and the second-level flower-shaped press head fixing part.

[0006] As a preferred solution of the taper pin positioning quick-change mechanism, a cover plate is provided above the secondary flower-shaped press head fixing part.

[0007] Compared with the prior art, the beneficial effect of the present invention is at least that: by using the first-level vertical spring and the second-level vertical spring, the cone pin positioning parts are closely matched, the positioning gap is eliminated, and the positioning accuracy is improved. In addition, the model change is simple and easy to operate, the success rate of one-time model change is improved, and the high flexibility and high compatibility of the entire assembly line are greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 Schematic diagram of the appearance of an embodiment of the present invention.

[0009] Figure 2 Schematic diagram of the structure of an embodiment of the present invention (sectioned along the x-axis).

[0010] Figure 3 It is a structural schematic diagram of the secondary flower-shaped press head fixing parts and the docking press head positioning anti-falling parts in an embodiment of the present invention.

[0011] Figure 4 It is a structural schematic diagram of the first-level flower-shaped press head fixing parts and the docking press head positioning anti-falling parts in an embodiment of the present invention.

[0012] Figure 5 Schematic diagram of the structure of an embodiment of the present invention (sectioned along the x-axis and y-axis).

[0013] Serial numbers in the figure: 1. Fixing part one; 2. Fixing part two; 3. Cone pin positioning part; 4. Primary clamping spring; 5. Primary flower-shaped pressing head fixing part; 6. Secondary preload spring; 7. Secondary flower-shaped pressing head fixing part; 8. Butt-joint pressing head positioning anti-falling part; 9. Anti-rotation knob plunger; 10. Cover plate; 11. Anti-rotation part. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below by means of specific embodiments in combination with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0015] See also Figures 1 to 5 The figure shows a taper pin positioning quick-change mechanism. The taper pin positioning quick-change mechanism is used for press-fitting of bearings, shaft seals, positioning pins, retaining rings, and bowl-shaped plugs in powertrain assembly lines such as engines and electric drives.

[0016] The cone pin positioning quick-change mechanism includes: a tool fixing part 1, a tool fixing part 2, a cone pin positioning part, a first-level vertical spring, a first-level flower-shaped pressure head fixing part, a second-level vertical spring, a second-level flower-shaped pressure head fixing part, a docking pressure head positioning anti-falling part, an anti-rotation knob plunger, a cover plate and an anti-rotation part.

[0017] The cone pin positioning part has a tapered inner hole that is smaller at the top and larger at the bottom. The cone pin positioning part is inside the tool fixing part 1. The cone pin positioning part can slide up and down along the tool fixing part 1.

[0018] The first-level flower-shaped pressing head fixing part and the second-level flower-shaped pressing head fixing part are both inside the second tool fixing part. The first-level flower-shaped pressing head fixing part is at the bottom, and the second-level flower-shaped pressing head fixing part is at the top. The first-level flower-shaped pressing head fixing part and the second-level flower-shaped pressing head fixing part can slide up and down along the second tool fixing part.

[0019] The cone pin positioning part, the first-level flower-shaped press head fixing part and the second-level flower-shaped press head fixing part can only slide up and down and cannot rotate. In specific implementation, the cone pin positioning part, the first-level flower-shaped press head fixing part and the second-level flower-shaped press head fixing part have a common anti-rotation part. The anti-rotation part can be a vertical shaft. The vertical shaft passes through the cone pin positioning part, the first-level flower-shaped press head fixing part and the second-level flower-shaped press head fixing part.

[0020] The primary vertical spring is between the cone pin positioning part and the primary flower-shaped press head fixing part. The secondary vertical spring is between the secondary flower-shaped press head fixing part and the primary flower-shaped press head fixing part. When the docking press head positioning anti-falling part is inserted into the cone pin positioning part, the primary vertical spring is compressed, and the primary vertical spring exerts a downward driving force on the cone pin positioning part, so that the docking press head positioning anti-falling part fits with the cone pin positioning part. At the same time, the secondary vertical spring is also compressed, and the fixed end of the secondary vertical spring cooperates with the second tooling fixing part to exert an upward driving force on the cone pin positioning part. The primary vertical spring and the secondary vertical spring are used in pairs to make the cone pin positioning part fit tightly and accurately positioned.

[0021] Preferably, a cover plate is provided above the fixing part of the secondary flower-shaped press head to prevent the part from sliding out of the positioning tooling.

[0022] By using the primary vertical spring and the secondary vertical spring, the cone pin positioning parts are closely matched, the positioning gap is eliminated, and the positioning accuracy is improved. The changeover method in the structure is to manually dock in place, rotate the card slot surface, and cooperate with the knob plunger anti-rotation method. The changeover is simple, no additional tools are required, and the changeover time is shortened.

[0023] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A taper pin positioning quick-change mechanism, characterized in that: include: The tool fixing part 1, the tool fixing part 2, the cone pin positioning part, the primary vertical spring, the primary flower-shaped pressure head fixing part, the secondary vertical spring, the secondary flower-shaped pressure head fixing part and the docking pressure head positioning anti-falling part, the cone pin positioning part has a conical inner hole that is small at the top and large at the bottom, the cone pin positioning part is inside the tool fixing part 1, the primary flower-shaped pressure head fixing part and the secondary flower-shaped pressure head fixing part are both inside the tool fixing part 2, the primary flower-shaped pressure head fixing part and the secondary flower-shaped pressure head fixing part can slide up and down along the tool fixing part 2, the primary vertical spring is in the cone The pin positioning part is between the first-level flower-shaped press head fixing part, and the second-level vertical spring is between the second-level flower-shaped press head fixing part and the first-level flower-shaped press head fixing part; when the docking press head positioning anti-falling part is inserted into the cone pin positioning part, the first-level vertical spring is compressed, and the first-level vertical spring exerts a downward driving force on the cone pin positioning part, so that the docking press head positioning anti-falling part fits with the cone pin positioning part, and at the same time, the second-level vertical spring is also compressed, and the second-level vertical spring cooperates with the tooling fixing part 2 to exert an upward driving force on the cone pin positioning part.

2. The taper pin positioning quick-change mechanism according to claim 1, characterized in that: The cone pin positioning part, the first-level flower-shaped press head fixing part and the second-level flower-shaped press head fixing part have a common anti-rotation part.

3. The taper pin positioning quick-change mechanism according to claim 2, characterized in that: The anti-rotation part is a vertical axis, and the vertical axis passes through the cone pin positioning part, the first-level flower-shaped press head fixing part and the second-level flower-shaped press head fixing part.

4. The taper pin positioning quick-change mechanism according to claim 1, characterized in that: A cover plate is provided above the second-level flower-shaped press head fixing part.

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