Integrated clamping jaw mechanism for taking contact pin in mold

Abstract

The invention discloses an integrated clamping jaw mechanism for taking a contact pin in a mold, which belongs to the technical field of contact pin clamping equipment and comprises an upper contact pin clamping jaw and a lower contact pin clamping jaw which can be opened and closed along the vertical direction, the pin upper clamping jaw comprises an upper shell, a plurality of parallel upper clamping teeth extending from the front edge of the upper shell, and a plurality of elastic clamping teeth located between the adjacent upper clamping teeth. The pin lower clamping jaw comprises a lower shell, a clamping tooth plate extending from the front edge of the upper shell and a plurality of lower clamping teeth protruding from the surface of the clamping tooth plate to the direction where the pin upper clamping jaw is located, the lower clamping teeth and the elastic clamping teeth are in one-to-one correspondence, and when the pin upper clamping jaw and the pin lower clamping jaw are closed, the pin upper clamping jaw and the pin lower clamping jaw get close to each other to clamp the pin. The contact pin is stably limited, the positioning is accurate, the clamping stability is high, and the mechanical wear is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of pin clamping equipment, and in particular relates to an integrated clamping claw mechanism for removing pins in a mold. Background Art

[0002] The pin clamping device includes upper and lower pin clamping teeth and a power structure for driving the upper and lower pin clamping teeth to open and close. The power structure generally uses a cylinder. The pin structure is slender, and the cylinder needs to provide sufficient clamping force to prevent the pin from slipping out of the gap between the clamping teeth during clamping.

[0003] The patent with announcement number CN205380667U discloses a clamping mechanism, including a fixed clamping jaw, a movable clamping jaw, a guide groove provided on the fixed clamping jaw, and a guide protrusion provided on the movable clamping jaw. Although the structure of the guide protrusion and the guide groove can improve the clamping force provided by the cylinder, the clamping teeth float due to the clamping of the cylinder, and the clamping of the pin is unstable and cannot be accurately positioned. In addition, the current clamping teeth and the pin are in hard contact, and the mechanical wear between the two is serious after the clamping force increases.

[0004] In particular, in the prior art, in order to improve production efficiency, the pin clamping device usually uses upper and lower pin clamping teeth to clamp multiple pins at the same time, such as a connector pin clamping device disclosed in patent CN219801467U. In the case of floating clamping teeth, it is even more impossible to ensure that each pin is clamped. Summary of the invention

[0005] The invention provides an integrated clamping claw mechanism for removing an insertion pin in a mold, which is used to solve the current problem of unstable clamping of the insertion pin.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: an integrated clamping jaw mechanism for clamping the pin in the mold, comprising an upper clamping jaw and a lower clamping jaw of the pin that can be opened and closed in the vertical direction;

[0007] The pin upper clamping jaw comprises an upper shell, a plurality of upper clamping teeth extending from the front edge of the upper shell and parallel to each other, and a plurality of elastic clamping teeth located between adjacent upper clamping teeth;

[0008] The lower clamping jaw of the pin includes a lower shell, a clamping tooth plate extending from the front edge of the upper shell, and a plurality of lower clamping teeth protruding from the surface of the clamping tooth plate toward the direction of the upper clamping jaw of the pin. The lower clamping teeth correspond one-to-one with the elastic clamping teeth, and when the upper clamping jaw of the pin and the lower clamping jaw of the pin are closed, the two are close to each other to clamp the pin.

[0009] Specifically, one end of the elastic clamping tooth extends into the upper shell, and a plurality of through holes are provided on the upper shell. The through holes are opposite to the elastic clamping teeth, and plungers capable of pressing down the elastic clamping teeth are provided in the through holes.

[0010] Specifically, the elastic clamping tooth includes an elongated claw body and an L-shaped claw seat. A mounting seat is assembled in the upper shell body. The mounting seat includes a limiting portion and mounting portions located at both ends of the limiting portion. The mounting portion is fixedly connected to the upper shell body by screws. The limiting portion has a side plane and a top plane that fit with the claw seat. The claw seat is located between the upper shell body and the limiting portion.

[0011] Specifically, the lower surface of the elastic clamping tooth is higher than the lower surface of the upper clamping tooth.

[0012] Specifically, the height difference between the lower surface of the elastic clamping tooth and the lower surface of the upper clamping tooth is smaller than the protruding height of the lower clamping tooth relative to the clamping tooth plate.

[0013] Specifically, it also includes a clamping jaw opening and closing assembly, which includes a horizontal plate, a guide column vertically fixed on the horizontal plate, a clamping needle cylinder fixed on the horizontal plate, and a cam clamping seat that can move linearly along the horizontal plate after being driven by the clamping needle cylinder. The upper clamping jaw of the pin is movably sleeved on the guide column, and a first cam follower is arranged on both sides thereof. The cam clamping seat has side plates located on both sides of the upper clamping jaw of the pin and the lower clamping jaw of the pin, and a first cam groove cooperating with the first cam follower is arranged on the side plate. When the cam clamping seat moves linearly, the first cam follower can move along the first cam groove, and the upper clamping jaw of the pin rises and falls along the guide column.

[0014] Specifically, the pin lower clamp is movably sleeved on the guide column, and second cam followers are arranged on both sides thereof, and a second cam groove cooperating with the second cam follower is opened on the side plate. When the cam clamping seat moves linearly, the second cam follower can move along the second cam groove, and the pin lower clamp is lifted and lowered along the guide column. In the horizontal direction, the distance between the first cam groove and the second cam groove gradually increases or decreases.

[0015] Specifically, in the horizontal direction, the spacing between the second cam groove and the horizontal plane gradually increases or decreases and then remains unchanged.

[0016] Specifically, it also includes a clamping claw propulsion assembly, which includes a pin cylinder and a base plate. The horizontal plate moves linearly along the base plate under the driving action of the pin cylinder.

[0017] Specifically, the clamping jaw propulsion assembly further includes a limit block fixed on the horizontal plate, a limit plate fixed on the bottom plate, and a sensor arranged on the limit plate, wherein the sensor is used to detect the moving distance of the limit block.

[0018] The technical solution provided by the present invention has the following advantages compared with the prior art:

[0019] 1. Set elastic clamping teeth that are staggered with the upper clamping teeth. The pin is embedded between adjacent upper clamping teeth to limit the pin and ensure its positioning accuracy. At the same time, the elastic clamping teeth are elastically deformed under pressure to press the pin. Even if the upper and lower clamping teeth float, the pin can be kept in a tightly clamped state, which improves the clamping stability. The pin is in soft contact with the elastic clamping teeth to reduce mechanical wear and pressure loss.

[0020] 2. It can provide a separate elastic clamping power to a single pin to improve equipment compatibility.

[0021] 3. The pins are clamped with cam grooves and cam structures, which increases the clamping force and reduces the force requirements for the pin clamping cylinder. Correspondingly, the volume of the pin clamping cylinder and the clamping jaw opening and closing components is reduced, which is suitable for in-mold pin clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural diagram of an integrated clamping claw mechanism for removing an insertion pin in a mold according to an embodiment of the present invention;

[0023] Figure 2 It is an exploded view of an integrated clamping claw mechanism for removing the insertion pin in the mold according to an embodiment of the present invention;

[0024] Figure 3 is a structural diagram of a clamping jaw opening and closing assembly in an embodiment of the present invention;

[0025] Figure 4 is an exploded view of the jaw opening and closing assembly in an embodiment of the present invention;

[0026] Figure 5 is a structural diagram of an upper pin clamp and a lower pin clamp in an embodiment of the present invention;

[0027] Figure 6 is a connection diagram of the elastic clamping teeth and the mounting seat in an embodiment of the present invention;

[0028] Figure 7 It is an exploded view of the upper clamping jaw and the lower clamping jaw of the pin in the embodiment of the present invention.

[0029] As shown in the figure:

[0030] 1. Pin upper clamping claw; 11. Upper housing; 111. Groove; 112. Through hole; 113. Plunger; 114. First cam follower; 12. Upper clamping teeth; 13. Elastic clamping teeth; 131. Claw body; 132. Claw seat; 14. Mounting seat; 141. Limiting portion; 142. Mounting portion;

[0031] 2. Pin lower clamping jaw; 21. Lower housing; 211. Second cam follower; 22. Clamping tooth plate; 23. Lower clamping tooth;

[0032] 3. Clamping jaw opening and closing assembly; 31. Horizontal plate; 32. Guide column; 33. Clamping needle cylinder; 34. Cam clamping seat; 341. Side plate; 342. First cam groove; 343. Second cam groove; 35. First linear rail; 36. First slider; 37. Guide hole;

[0033] 4. Gripper propulsion assembly; 41. Pin cylinder; 42. Bottom plate; 43. Second linear rail; 44. Limiting structure; 441. Limiting block; 442. Limiting plate; 443. Sensor;

[0034] 5. Insert the pin. DETAILED DESCRIPTION

[0035] For ease of understanding, the integrated clamping mechanism for removing the in-mold pin is described below in conjunction with embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1 As shown, in this embodiment, the integrated clamping mechanism for removing the pin in the mold includes an upper pin clamping jaw 1 and a lower pin clamping jaw 2 which can be opened and closed in the vertical direction, a clamping jaw opening and closing component 3 and a clamping jaw pushing component 4; the clamping jaw opening and closing component 3 is used to adjust the distance between the upper pin clamping jaw 1 and the lower pin clamping jaw 2 to realize the opening and closing of the two, so as to achieve the purpose of clamping and releasing the pin 5, and the clamping jaw pushing component is used to push the upper pin clamping jaw 1 and the lower pin clamping jaw 2 to move linearly synchronously, so that the upper pin clamping jaw 1 and the lower pin clamping jaw 2 enter and exit the mold.

[0039] like Figure 1 to Figure 2As shown, the clamping claw propulsion assembly 4 includes a pin cylinder 41, a bottom plate 42, a second linear rail 43 arranged on the bottom plate 42, and a limiting structure 44. The first linear rail 35 is parallel to the second linear rail 43. The horizontal plate 31 is fixedly connected to the output end of the pin cylinder 41. Under the driving action of the pin cylinder 41, the horizontal plate 31 slides along the second linear rail 43. The limiting structure 44 includes a limiting block 441, a limiting plate 442 and a sensor 443. One side of the horizontal plate 31 is fixedly connected to the limiting block 441, and the front end of the bottom plate 42 is fixedly connected to the limiting plate 442, which is located on the moving path of the limiting block 441, and a sensor 443 is installed thereon. The sensor 443 is used to detect the moving distance of the limiting block 441 relative to the limiting plate 442.

[0040] like Figure 3 to Figure 4 As shown, the clamping jaw opening and closing assembly 3 includes a horizontal plate 31, a guide column 32, a clamping needle cylinder 33 fixed on the horizontal plate 31, and a cam clamping seat 34 connected to the output end of the clamping needle cylinder 33. Specifically, a first linear rail 35 is provided on the horizontal plate 31, and the cam clamping seat 34 is slidably connected to the first linear rail 35 through a first slider 36. Under the driving action of the clamping needle cylinder 33, the cam clamping seat 34 can slide along the first linear rail 35.

[0041] Continue as Figure 3 to Figure 4 As shown, a guide column 32 with a non-circular cross section is vertically fixed to the front end of the horizontal plate 31, and a guide hole 37 with a shape consistent with the cross-sectional shape of the guide column 32 is provided on the upper clamping jaw 1 and the lower clamping jaw 2 of the pin. The upper shell 11 is movably sleeved on the upper end of the guide column 32 from top to bottom, and the first cam follower 114 is fixedly connected on both sides of the upper clamping jaw 1 of the pin. The lower shell 21 is movably sleeved on the lower end of the guide column 32 from bottom to top, and the second cam follower 211 is fixedly connected on both sides of the lower clamping jaw 2 of the pin. The cam clamping seat 34 has a side plate 341 located on both sides of the upper clamping jaw 1 and the lower clamping jaw 2 of the pin, and the side plate 341 is provided with a first cam groove 342 matched with the first cam follower 114, and a second cam groove 343 matched with the second cam follower 211.

[0042] Continue as Figure 3 to Figure 4 As shown, in the horizontal direction, from front to back, the distance between the first cam groove 342 and the horizontal plane gradually decreases, the second cam groove 343 is equal in length to the first cam groove 342, and the distance between the second cam groove 343 and the horizontal plane gradually increases or decreases and then remains unchanged.

[0043] Continue as Figure 3 to Figure 4As shown, the working principle of the clamping jaw opening and closing assembly is: the clamping needle cylinder 33 pushes the cam clamping seat 34 to move forward along the first linear rail 35, that is, the side plate 341 moves forward relative to the first cam follower 114 and the second cam follower 211, and the first cam follower 114 moves from front to back along the first cam groove 342, and the upper clamping jaw 1 of the pin moves downward along the guide column 32, and synchronously, the second cam follower 211 moves from front to back along the second cam groove 343, and the lower clamping jaw 2 of the pin moves upward along the guide column 32. During the movement, the upper clamping jaw 1 and the lower clamping jaw 2 of the pin approach each other at a uniform speed, and then decelerate, and then approach each other at a uniform speed after decelerating, until the upper clamping jaw 1 and the lower clamping jaw 2 of the pin are closed.

[0044] like Figures 5 to 7 As shown, the pin upper clamping jaw 1 includes an upper shell 11, upper clamping teeth 12, elastic clamping teeth 13 and a mounting seat 14. The upper shell 11 extends from its front edge to form five upper clamping teeth 12 parallel to each other. The spacing between adjacent upper clamping teeth 12 is equal. The upper clamping teeth 12 are made of hard material, and the elastic clamping teeth 13 are made of rubber material. The upper shell 11 is provided with a groove body 111 which opens downward, and the mounting seat 14 is embedded in the groove body 111 from bottom to top; the elastic clamping tooth 13 includes a long claw body 131 and an L-shaped claw seat 132, wherein the claw body 131 is assembled between adjacent upper clamping teeth 12, the front end of each claw body 131 is flush with the front end of the upper clamping tooth 12, and the tail end of each claw body 131 is connected to the claw seat 132 integrally formed therewith; the mounting seat 14 includes a limiting portion 141 and a mounting portion 142 located at both ends of the limiting portion 141, the mounting portion 142 is fixedly connected to the upper shell 11 by screws, the limiting portion 141 has a side plane and a top plane that fit with the claw seat 132, and the claw seat 132 is assembled between the shell and the limiting portion 141, that is, the claw seat 132 is restricted between the limiting portion 141 and the upper shell 11, but can move up and down relative to the upper shell 11. Four through holes 112 are provided on the upper shell 11 . The positions of the through holes 112 are opposite to the positions of the elastic clamping teeth 13 . A plunger 113 is provided in the through hole 112 to press down the elastic clamping teeth 13 . The plunger 113 can provide a separate elastic clamping power to a single pin 5 .

[0045] Continue as Figures 5 to 7As shown, the lower clamping jaw 2 of the pin includes a lower shell 21, a clamping tooth plate 22 and lower clamping teeth 23. The lower shell 21 extends from its front edge to form a clamping tooth plate 22. The clamping tooth plate 22 protrudes upward from its surface to form four lower clamping teeth 23. The four lower clamping teeth 23 correspond to the four elastic clamping teeth 13 one by one. The lower surface of the elastic clamping teeth 13 is higher than the lower surface of the upper clamping teeth 12. The height difference between the lower surface of the elastic clamping teeth 13 and the lower surface of the upper clamping teeth 12 is smaller than the protruding height of the lower clamping teeth 23 relative to the clamping tooth plate 22, ensuring that when the upper clamping jaw 1 and the lower clamping jaw 2 of the pin are closed, the elastic clamping teeth 13 cooperate with the lower clamping teeth 23 to achieve the effect of squeezing and clamping the pin 5. When clamping, the pin 5 is located between the elastic clamping teeth 13 and the lower clamping teeth 23, and between the adjacent upper clamping teeth 12. After the upper pin clamping jaw 1 and the lower pin clamping jaw 2 are closed, at least one and at most four pins 5 are clamped and fixed between the elastic clamping teeth 13 and the lower clamping teeth 23.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated clamping mechanism for clamping pins in a mold, characterized in that: It includes an upper pin clamp and a lower pin clamp that can be opened and closed in the vertical direction; The pin upper clamping jaw comprises an upper shell, a plurality of upper clamping teeth extending from the front edge of the upper shell and parallel to each other, and a plurality of elastic clamping teeth located between adjacent upper clamping teeth; The lower clamping jaw of the pin includes a lower shell, a clamping tooth plate extending from the front edge of the upper shell, and a plurality of lower clamping teeth protruding from the surface of the clamping tooth plate toward the direction of the upper clamping jaw of the pin. The lower clamping teeth correspond one-to-one with the elastic clamping teeth, and when the upper clamping jaw of the pin and the lower clamping jaw of the pin are closed, the two are close to each other to clamp the pin.

2. The integrated clamping mechanism for clamping the pin in the mold according to claim 1, characterized in that: One end of the elastic clamping tooth extends into the upper shell body, and a plurality of through holes are provided on the upper shell body. The through holes are opposite to the elastic clamping teeth, and plungers capable of pressing down the elastic clamping teeth are arranged in the through holes.

3. The integrated clamping mechanism for clamping the pin in the mold according to claim 1, characterized in that: The elastic clamping teeth include an elongated claw body and an L-shaped claw seat. A mounting seat is assembled in the upper shell body. The mounting seat includes a limiting portion and mounting portions located at both ends of the limiting portion. The mounting portion is fixedly connected to the upper shell body by screws. The limiting portion has a side plane and a top plane that fit with the claw seat. The claw seat is located between the upper shell body and the limiting portion.

4. The integrated clamping mechanism for clamping the pin in the mold according to claim 1, characterized in that: The lower surface of the elastic clamping tooth is higher than the lower surface of the upper clamping tooth.

5. The integrated clamping mechanism for clamping the pin in the mold as claimed in claim 3, characterized in that: The height difference between the lower surface of the elastic clamping tooth and the lower surface of the upper clamping tooth is smaller than the protruding height of the lower clamping tooth relative to the clamping tooth plate.

6. The integrated clamping mechanism for clamping the pin in the mold according to claim 1, characterized in that: It also includes a clamping jaw opening and closing assembly, which includes a horizontal plate, a guide column vertically fixed on the horizontal plate, a clamping needle cylinder fixed on the horizontal plate, and a cam clamping seat that can move linearly along the horizontal plate after being driven by the clamping needle cylinder. The upper clamping jaw of the pin is movably sleeved on the guide column, and a first cam follower is arranged on both sides thereof. The cam clamping seat has side plates located on both sides of the upper clamping jaw of the pin and the lower clamping jaw of the pin, and a first cam groove cooperating with the first cam follower is arranged on the side plate. When the cam clamping seat moves linearly, the first cam follower can move along the first cam groove, and the upper clamping jaw of the pin rises and falls along the guide column.

7. The integrated clamping mechanism for clamping the pin in the mold according to claim 6, characterized in that: The pin lower clamp is movably sleeved on the guide column, and second cam followers are arranged on both sides thereof. A second cam groove cooperating with the second cam follower is opened on the side plate. When the cam clamping seat moves linearly, the second cam follower can move along the second cam groove, and the pin lower clamp is lifted and lowered along the guide column. In the horizontal direction, the distance between the first cam groove and the second cam groove gradually increases or decreases.

8. The integrated clamping mechanism for clamping the pin in the mold according to claim 7, characterized in that: In the horizontal direction, the distance between the second cam groove and the horizontal plane gradually increases or decreases and then remains unchanged.

9. The integrated clamping mechanism for clamping the pin in the mold according to claim 6, characterized in that: It also includes a clamping claw propulsion assembly, which includes a pin cylinder and a base plate. The horizontal plate moves linearly along the base plate under the driving action of the pin cylinder.

10. The integrated clamping mechanism for clamping the pin in the mold according to claim 9, characterized in that: The clamping jaw propulsion assembly also includes a limit block fixed on the horizontal plate, a limit plate fixed on the bottom plate, and a sensor arranged on the limit plate, wherein the sensor is used to detect the moving distance of the limit block.

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