Positioning pin press-fitting template mechanism

Abstract

The utility model discloses a positioning pin press-fitting template mechanism. Comprising a movable pressing head, an upper connecting plate, a lower die plate and a middle spring. The end portion of the movable pressing head is composed of an end portion upper section and an end portion lower section. The lower die plate is provided with a pin containing vertical hole. And a positioning pin is accommodated in the pin accommodating vertical hole. And the pin accommodating vertical hole is upwards aligned to the movable pressure head. And the pin accommodating vertical hole is downwards aligned to a reserved pin hole of a product part. When the movable pressing head moves downwards, the lower section of the end portion enters the pin containing vertical hole, and the positioning pin is pressed into the reserved pin hole till the upper section of the end portion abuts against the lower die plate. The utility model has the beneficial effects that the exposed height of the positioning pin is determined by the thickness of the lower template and the length of the lower section of the end part so as to ensure the accuracy requirement of the exposed height of the positioning pin.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning pin press equipment, in particular to a positioning pin press template mechanism. BACKGROUND

[0002] The press equipment of positioning pin is to press the positioning pin to the reserved pin hole of product spare part. After being pressed in place, the positioning pin is partly exposed. In order to guarantee the accuracy requirement of exposure height, the current adoption is the limit of press head. The shortcoming is that the depth of press head hole gradually increases due to the deformation of press equipment, which leads to low service life of press head. In addition, the surface of product spare part is directly contacted by press head, which easily produces indentation and destroys the surface quality. SUMMARY

[0003] The utility model aims at solving the surface quality problem caused by the limit of press head to the exposure height of positioning pin, and provides a positioning pin press template mechanism.

[0004] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows: a positioning pin press template mechanism, comprising: movable press head, upper connecting plate, lower template and intermediate spring; the end of the movable press head is composed of end upper section and end lower section; the lower template is below the upper connecting plate and above the product spare part, the intermediate spring is between the upper connecting plate and the lower template, and the intermediate spring is used for tightly abutting the lower template and the product spare part; the lower template has a pin accommodating vertical hole, the pin accommodating vertical hole accommodates a positioning pin, the pin accommodating vertical hole is upwardly located to the movable press head, and the pin accommodating vertical hole is downwardly located to the reserved pin hole of product spare part; when the movable press head moves downward, the end lower section enters the pin accommodating vertical hole and presses the positioning pin to the reserved pin hole, until the end upper section abuts against the lower template.

[0005] As the preferred scheme of the positioning pin press template mechanism, the lower template has a plunger accommodating horizontal hole connected with the pin accommodating vertical hole, the plunger accommodating horizontal hole accommodates a ball head plunger, and the ball head of the ball head plunger abuts against the positioning pin to position the positioning pin in the pin accommodating vertical hole.

[0006] As the preferred scheme of the positioning pin press template mechanism, the upper connecting plate has a connecting plate avoiding hole avoiding the movable press head.

[0007] As the preferred scheme of the positioning pin press template mechanism, the end of the movable press head is designed in steps, wherein the outer diameter of the end upper section is greater than the outer diameter of the end lower section.

[0008] As the preferred scheme of the positioning pin press template mechanism, there is a guide column between the upper connecting plate and the lower template, and the intermediate spring is positioned around the periphery of the guide column.

[0009] As the preferred scheme of the positioning pin press fitting template mechanism, the opposite ends of the upper connecting plate are provided with the lower template.

[0010] Compared with the prior art, the beneficial effects of the positioning pin press fitting template mechanism at least lie in that the exposed height of the positioning pin is determined by the thickness of the lower template and the length of the end lower section, so as to ensure the accuracy requirement of the exposed height of the positioning pin. The lower template separates the movable press head from the product part, that is, the movable press head is non-contact with the product part during the whole press fitting process, so that the movable press head cannot produce a pressure mark on the surface of the product part, so as to ensure the surface quality of the product part.

[0011] In addition to the technical problems solved by the utility model, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features described above, other technical problems solved by the utility model, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structural schematic view of an embodiment of the utility model (omitting the movable press head).

[0013] Fig. 2 It is a structural schematic view of an embodiment of the utility model (the positioning pin has not entered the reserved pin hole).

[0014] Fig. 3 It is a structural schematic view of an embodiment of the utility model (the positioning pin has entered the reserved pin hole). DETAILED DESCRIPTION

[0015] The utility model will be further described in detail in combination with the drawings through specific implementation manners. It needs to be explained here that the description of these implementation manners is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each implementation manner of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0016] Referring to Figs. 1 to 3 , it is a positioning pin press fitting template mechanism shown in the figure.

[0017] The positioning pin press fitting template mechanism is used for carrying out the press fitting work of the positioning pin 100, that is, the press fitting of the positioning pin 100 to the reserved pin hole of the product part 200. The positioning pin press fitting template mechanism can ensure the accuracy requirement of the exposed height of the positioning pin 100 and the surface quality of the product part 200.

[0018] The positioning pin press-fitting template mechanism comprises a movable press head 1, an upper connecting plate 2, a lower template 3, an intermediate spring 4, etc.

[0019] The movable press head 1 is the execution component of the press-fitting machine, which can be displaced up and down and drives the positioning pin 100 to be press-fitted into the reserved pin hole of the product part 200. The end of the movable press head 1 is designed with a step. The end of the movable press head 1 is composed of an end upper section 11 and an end lower section 12. The outer diameter of the end upper section 11 is larger than that of the end lower section 12.

[0020] The upper connecting plate 2 is fixed. The upper connecting plate 2 has a connecting plate avoiding hole 20. The connecting plate avoiding hole 20 surrounds the periphery of the movable press head 1. The connecting plate avoiding hole 20 avoids the movable press head 1, so as not to affect the up and down displacement of the movable press head 1.

[0021] The lower template 3 is below the upper connecting plate 2 and above the product part 200. The lower template 3 has a pin accommodating vertical hole 31 and a plunger accommodating horizontal hole 32. The plunger accommodating horizontal hole 32 is connected with the pin accommodating vertical hole 31 and both constitute a T-shaped structure. The pin accommodating vertical hole 31 accommodates the positioning pin 100. The plunger accommodating horizontal hole 32 accommodates a ball head plunger 320. The ball head plunger 320 is fixed. The ball head of the ball head plunger 320 abuts against the positioning pin 100, so as to position the positioning pin 100 in the pin accommodating vertical hole 31 and prevent it from falling off.

[0022] The pin accommodating vertical hole 31 penetrates up and down. The pin accommodating vertical hole 31 is upwardly located against the movable press head 1. The pin accommodating vertical hole 31 is downwardly located against the reserved pin hole of the product part 200. The inner diameter of the pin accommodating vertical hole 31 is between the outer diameter of the end upper section 11 and the outer diameter of the end lower section 12. When the movable press head 1 is displaced downwardly, the end lower section 12 enters the pin accommodating vertical hole 31 and press-fits the positioning pin 100 into the reserved pin hole, until the end upper section 11 abuts against the lower template 3.

[0023] The intermediate spring 4 is between the upper connecting plate 2 and the lower template 3. The intermediate spring 4 is always in a compressed state. The intermediate spring 4 is used to make the lower template 3 closely adhere to the product part 200 and ensure the relative parallelism of the lower template 3 and the product part 200. In specific implementation, there is a guide column 5 between the upper connecting plate 2 and the lower template 3. The intermediate spring 4 surrounds the periphery of the guide column 5, so as to position the intermediate spring 4.

[0024] The exposed height of the positioning pin 100 is determined by the thickness of the lower die plate 3 and the length of the end lower section 12, so as to ensure the accuracy requirement of the exposed height of the positioning pin 100.

[0025] The lower die plate 3 separates the movable press head 1 from the product part 200 (the end upper section 11 abuts against the lower die plate 3), that is, the movable press head 1 is non-contact with the product part 200 during the whole press-fitting process, so the movable press head 1 cannot produce a press mark on the surface of the product part 200, so as to ensure the surface quality of the product part 200.

[0026] Preferably, the opposite two ends of the upper connecting plate 2 are provided with the lower die plate 3. That is, the positioning pin press-fitting die plate mechanism is designed in a double-position mode, so as to realize one position for loading the positioning pin 100 and the other position for press-fitting the positioning pin 100, so as to improve the production rhythm.

[0027] The above only expresses the embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A dowel press fit template mechanism, characterized by, The utility model relates to a product assembly device, which comprises: a movable pressing head, an upper connecting plate, a lower template and an intermediate spring; the end of the movable pressing head is composed of an upper end section and a lower end section; the lower template is below the upper connecting plate and above a product part; the intermediate spring is between the upper connecting plate and the lower template and is used to tightly fit the lower template and the product part; the lower template has a pin accommodating vertical hole accommodating a positioning pin inside; the pin accommodating vertical hole is upwardly located to the movable pressing head and downwardly located to a reserved pin hole of the product part; when the movable pressing head moves downward, the lower end section enters the pin accommodating vertical hole and presses the positioning pin into the reserved pin hole until the upper end section abuts against the lower template.

2. The dowel press fit template mechanism of claim 1, wherein, The lower template has a plunger accommodating horizontal hole connected with the pin accommodating vertical hole; the plunger accommodating horizontal hole accommodates a ball head plunger inside; the ball head of the ball head plunger abuts against the positioning pin to position the positioning pin in the pin accommodating vertical hole.

3. The dowel press fit template mechanism of claim 1, wherein, The upper connecting plate has a connecting plate avoiding hole avoiding the movable pressing head.

4. The dowel press fit template mechanism of claim 1, wherein, The end of the movable pressing head is designed in steps, wherein the outer diameter of the upper end section is greater than that of the lower end section.

5. The dowel press fit template mechanism of claim 1, wherein, There is a guide column between the upper connecting plate and the lower template; the intermediate spring is positioned around the periphery of the guide column.

6. The dowel press fit template mechanism of claim 1, wherein, The opposite ends of the upper connecting plate are both provided with the lower template.

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