An injection pen button assembly and pressing mechanism

Abstract

The present invention relates to an injection pen button assembly press mechanism, comprising a fixed base, an X-axis linear motor module, a clamping and transporting mechanism, a button material distributing mechanism and a parts tooling, wherein a fixed bracket is arranged on the fixed base, an X-axis linear motor module is arranged on the top of the fixed bracket along the X-axis direction, a driving end of the X-axis linear motor module is connected and driven by the clamping and transporting mechanism through a module bottom plate, and a parts tooling and a button material distributing mechanism are arranged in sequence below the clamping and transporting mechanism along the positive direction of the X-axis. The present invention can automatically complete material picking, press-fitting, pressure control, pressure detection and displacement detection, has a high assembly success rate, a fast assembly time, and significantly improves assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field related to mechanical production and processing, and in particular to an injection pen button assembly and pressing mechanism. Background Art

[0002] At present, most of the injection pen button product press-fitting is done manually, where the injection pen button is manually placed on the injection pen body, and then manually put into a hand press for press-fitting. During the press-fitting process, there is no pressure control, pressure detection, or press-fitting displacement monitoring. The production efficiency is relatively low, and defects such as inadequate assembly and press-fitting damage are prone to occur, resulting in a high number of returns for repair.

[0003] In view of the above-mentioned defects, active research and innovation are carried out in order to create an injection pen button assembly and pressing mechanism to make it more valuable for industrial use. Summary of the invention

[0004] In order to solve the above technical problems, an object of the present invention is to provide an injection pen button assembly press-fitting mechanism.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A mechanism for assembling and pressing buttons of an injection pen comprises a fixed base, an X-axis linear motor module, a clamping and transporting mechanism, a button material dispensing mechanism and a parts tooling. A fixed bracket is arranged on the fixed base, an X-axis linear motor module is arranged on the top of the fixed bracket along the X-axis direction, a driving end of the X-axis linear motor module is connected to the clamping and transporting mechanism through a module bottom plate, and a parts tooling and a button material dispensing mechanism are arranged in sequence below the clamping and transporting mechanism along the positive direction of the X-axis.

[0007] As a further improvement of the present invention, the clamping and transporting mechanism includes a lifting cylinder, a moving base plate, a pressing cylinder, a pressing rod track, a clamping cylinder and a pressing rod. The lifting cylinder is installed on the module base plate along the Z-axis direction, and the driving end at the bottom of the lifting cylinder is connected to the moving base plate in the Z-axis direction through the lifting cylinder slide plate. The top of the moving base plate is installed with a pressing cylinder through a pressing top plate. The driving end at the bottom of the pressing cylinder is connected to the pressing rod below through a pressure sensor. The pressing rod is movably installed in the pressing rod track in the Z-axis direction. The pressing rod track is installed near the bottom of the moving base plate along the Z-axis direction. The clamping cylinder is installed on the moving base plate on the side of the pressing rod track along the negative direction of the X-axis, and the clamping cylinder is arranged along the Z-axis direction.

[0008] As a further improvement of the present invention, the button material dividing mechanism includes a material dividing base, a material dividing base is connected to a material dividing bottom plate via a material dividing bracket, a material dividing cylinder is arranged on the side of the material dividing bottom plate along the negative direction of the Y-axis, a cover plate is arranged on the side of the material dividing bottom plate along the positive direction of the Y-axis, the driving end of the material dividing cylinder is connected to the driving of the material dividing moving block, and the material dividing moving block is arranged along the direction of the material dividing guide block pointing to the cover plate.

[0009] As a further improvement of the present invention, the part tooling includes a lifting cylinder, a jig chuck sleeve, a clamping jig and a clamping claw. The lifting cylinder is installed on the tooling base plate along the Z-axis direction. The driving end of the lifting cylinder is connected to the clamping claw guide block through a cylinder connecting plate. The clamping claw is connected to the clamping claw guide block. The jig chuck sleeve is installed on the inner side of the clamping claw through a tooling seat. The inner side of the bottom of the jig chuck sleeve is provided with equal height bolts, and the inner side of the top of the jig chuck sleeve is provided with a clamping jig.

[0010] As a further improvement of the present invention, a first spring is arranged on the outer side of the equal height bolt, and a second spring is also connected between the clamping jaws.

[0011] As a further improvement of the present invention, it also includes a detector, which is arranged at a position between the button dispensing mechanism and the part tooling, and the detector is installed on the detection bracket along the Z-axis direction.

[0012] By means of the above scheme, the present invention has at least the following advantages:

[0013] The present invention can automatically complete material taking, press fitting, pressure control, pressure detection and displacement detection, has a high assembly success rate, a short assembly time and significantly improves assembly efficiency.

[0014] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of an injection pen button assembly press-fitting mechanism of the present invention;

[0017] Figure 2 yes Figure 1 Structural diagram of the clamping and transporting mechanism;

[0018] Figure 3 yes Figure 1 Structural diagram of the middle button dispensing mechanism;

[0019] Figure 4 yes Figure 1 Schematic diagram of the internal structure of the part tooling;

[0020] Figure 5 It is a schematic diagram of the material taking position of the present invention;

[0021] Figure 6 It is a schematic diagram of the present invention when it is carried to the right position;

[0022] Figure 7 It is a schematic diagram of the present invention when it is in the press-fitting position.

[0023] The meanings of the various reference numerals in the figures are as follows.

[0024] 1 Fixed base 2 Fixed bracket

[0025] 3 X-axis linear motor module 4 Tank chain

[0026] 5 Module base plate 6 Tank chain support plate

[0027] 7 Clamping and transporting mechanism 8 Button material dispensing mechanism

[0028] 9 Parts tooling 10 Detection bracket

[0029] 11 Detector 12 Lifting cylinder

[0030] 13 Lifting cylinder slide plate 14 Motion base plate

[0031] 15 Press-fit cylinder 16 Press-fit top plate

[0032] 17 Pressure sensor 18 Press-fit rod track

[0033] 19 Gripper Cylinder 20 Press Rod

[0034] 21 Material distribution base 22 Material distribution support

[0035] 23 material distribution bottom plate 24 material distribution cylinder

[0036] 25 material distribution moving block 26 material distribution guide block

[0037] 27 Cover plate 28 Tooling base plate

[0038] 29 Lifting cylinder 30 Cylinder connecting plate

[0039] 31 Gripper guide block 32 Equal height bolt

[0040] 33 First spring 34 Fixture chuck sleeve

[0041] 35 Tooling seat 36 Clamping fixture

[0042] 37 Second spring 38 Clamping claw DETAILED DESCRIPTION

[0043] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. The components of the embodiment of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiment of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0045] Example

[0046] like Figure 1 to Figure 7 As shown,

[0047] A mechanism for assembling and pressing buttons of an injection pen comprises a fixed base 1, an X-axis linear motor module 3, a clamping and transporting mechanism 7, a button material dispensing mechanism 8 and a parts tooling 9. A fixed bracket 2 is arranged on the fixed base 1, an X-axis linear motor module 3 is arranged on the top of the fixed bracket 2 along the X-axis direction, a driving end of the X-axis linear motor module 3 is drivingly connected to the clamping and transporting mechanism 7 through a module bottom plate 5, and a parts tooling 9 and a button material dispensing mechanism 8 are arranged in sequence below the clamping and transporting mechanism 7 along the positive direction of the X-axis.

[0048] Preferably, the clamping and transporting mechanism 7 includes a lifting cylinder 12, a moving base plate 14, a pressing cylinder 15, a pressing rod track 18, a clamping cylinder 19 and a pressing rod 20. The lifting cylinder 12 is installed on the module base plate 5 along the Z-axis direction. The driving end at the bottom of the lifting cylinder 12 is connected to the moving base plate 14 in the Z-axis direction through the lifting cylinder slide plate 13. The top of the moving base plate 14 is equipped with a pressing cylinder 15 through a pressing top plate 16. The driving end at the bottom of the pressing cylinder 15 is connected to the pressing rod 20 below through a pressure sensor 17. The pressing rod 20 is movably installed in the pressing rod track 18 in the Z-axis direction. The pressing rod track 18 is installed near the bottom of the moving base plate 14 along the Z-axis direction. A clamping cylinder 19 is installed on the moving base plate 14 on the negative side of the X-axis along the pressing rod track 18. The clamping cylinder 19 is arranged along the Z-axis direction.

[0049] Preferably, the button dividing mechanism 8 includes a dividing base 21, on which a dividing bottom plate 23 is connected via a dividing bracket 22, a dividing cylinder 24 is provided on the dividing bottom plate 23 on one side along the negative direction of the Y-axis, a cover plate 27 is provided on the dividing bottom plate 23 on one side along the positive direction of the Y-axis, a driving end of the dividing cylinder 24 is drivingly connected to a dividing moving block 25, and the dividing moving block 25 is provided along the direction of the dividing guide block 26 pointing toward the cover plate 27.

[0050] Preferably, the part tooling 9 includes a lifting cylinder 29, a jig chuck sleeve 34, a clamping jig 36 and a clamping jaw 38. The lifting cylinder 29 is installed on the tooling base plate 28 along the Z-axis direction. The driving end of the lifting cylinder 29 is driven and connected to the clamping jaw guide block 31 through a cylinder connecting plate 30. The clamping jaw 38 is connected to the clamping jaw guide block 31. The jig chuck sleeve 34 is installed on the inner side of the clamping jaw 38 through a tooling seat 35. The inner side of the bottom of the jig chuck sleeve 34 is provided with equal height bolts 32, and the inner side of the top of the jig chuck sleeve 34 is provided with a clamping jig 36.

[0051] Preferably, a first spring 33 is disposed on the outer side of the equal height bolt 32 , and a second spring 37 is connected between the clamping jaws 38 .

[0052] Preferably, a detector 11 is further included. The detector 11 is arranged between the button dispensing mechanism 8 and the part fixture 9. The detector 11 is installed on the detection bracket 10 along the Z-axis direction.

[0053] The descriptions of the X, Y and Z axis directions in the present invention are based on the drawings in the specification. Figure 1 shall prevail.

[0054] like Figure 1 As shown, the device of the present invention is mainly composed of three parts, namely a clamping and transporting mechanism 7, a button material distribution mechanism 8 and a parts tooling 9.

[0055] like Figure 2 As shown, the clamping and transporting mechanism 7 is mainly moved by the X-axis linear motor module 3 through the module base plate 5. A lifting cylinder 12 is installed on the module base plate 5. The moving base plate 12 is fixed on the lifting cylinder slide plate 13. The press rod 20 and the press rod track 18 are connected by a bushing, so that the press rod 20 can slide in the press rod track 18. A clamping claw cylinder 19 is provided next to it, which is fixed on the moving base plate 12 together with the press rod track 18. The press cylinder 15 is driven and connected to the press rod 20 through a pressure sensor 17. Through the step-by-step movement of the two cylinders, the action of first clamping and then pressing the product is realized.

[0056] like Figure 3 As shown, the button dividing mechanism 8 is based on a dividing bottom plate 23, on the plane of which are mounted a dividing guide block 26, a dividing moving block 25 and a cover plate 27, wherein the moving part dividing moving block 25 is connected to a dividing cylinder 24 to provide power, thereby realizing a feeding and dividing mechanism.

[0057] like Figure 4 As shown, the part tooling 9, the driving part is fixed on the tooling base plate 28 by the lifting cylinder 29, and the power is output to the clamping jaw guide block 31 installed on the cylinder connecting plate 30, which contacts with the upper clamping jaw 38 of the tooling, and cooperates with the second spring 37 to realize the opening and closing of the clamping jaw 38. The main tooling part is composed of a clamping fixture 36, a height bolt 32, a first spring 33 and a fixture chuck sleeve 34 to realize a mechanism for clamping and unlocking the fixture by lifting from the bottom, and then it is installed as a whole on the tooling seat 35 to form a complete part tooling.

[0058] The working principle or working process of the present invention is briefly described as follows:

[0059] The button material distribution mechanism 8 distributes the button to the material picking position, the lifting cylinder 29 at the part tooling 9 is actuated, and the clamping jaw guide block 31 pushes the clamping jaw 38 to open, so that the part tooling 9 is in the open position, and the material is ready to be discharged. The clamping and transporting mechanism 7 moves to the button material distribution mechanism 8, and the whole is lowered. The clamping jaw cylinder 19 works to clamp the material and rises as a whole. The X-axis linear motor module 3 moves to the part tooling 9, and the whole is lowered to place the nut on the product to be installed. The clamping jaw cylinder 19 opens, and the pressing cylinder 15 works to drive the pressing rod 20 to hit the nut onto the product, and the whole rises. The lifting cylinder 29 retracts to complete a nut pressing cycle.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly referring to the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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; it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An injection pen button assembly press-fitting mechanism, characterized in that: The invention comprises a fixed base (1), an X-axis linear motor module (3), a clamping and transporting mechanism (7), a button material dispensing mechanism (8) and a parts tooling (9), wherein a fixed bracket (2) is arranged on the fixed base (1), an X-axis linear motor module (3) is arranged on the top of the fixed bracket (2) along the X-axis direction, a driving end of the X-axis linear motor module (3) is connected to the clamping and transporting mechanism (7) through a module bottom plate (5), and a parts tooling (9) and a button material dispensing mechanism (8) are arranged in sequence below the clamping and transporting mechanism (7) along the positive direction of the X-axis; The clamping and transporting mechanism (7) comprises a lifting cylinder (12), a moving base plate (14), a press-fitting cylinder (15), a press-fitting rod track (18), a clamping claw cylinder (19) and a press-fitting rod (20); the lifting cylinder (12) is mounted on the module base plate (5) along the Z-axis direction; the driving end at the bottom of the lifting cylinder (12) is connected to the moving base plate (14) in the Z-axis direction via a lifting cylinder slide plate (13); the top of the moving base plate (14) is equipped with a press-fitting cylinder (15) via a press-fitting top plate (16). 5), the driving end at the bottom of the press-fitting cylinder (15) is connected to the press-fitting rod (20) below through a pressure sensor (17), the press-fitting rod (20) is movably installed in the press-fitting rod track (18) in the Z-axis direction, the press-fitting rod track (18) is installed on the moving base plate (14) along the Z-axis direction at a position close to the bottom, and the press-fitting rod track (18) is installed on the moving base plate (14) on the negative side of the X-axis with a clamping cylinder (19), and the clamping cylinder (19) is arranged along the Z-axis direction; The button material dispensing mechanism (8) comprises a material dispensing base (21), a material dispensing base plate (23) being connected to the material dispensing base plate (21) via a material dispensing bracket (22), a material dispensing cylinder (24) being provided on one side of the material dispensing base plate (23) along the negative direction of the Y axis, a cover plate (27) being provided on one side of the material dispensing base plate (23) along the positive direction of the Y axis, a driving end of the material dispensing cylinder (24) being drivingly connected to a material dispensing moving block (25), and the material dispensing moving block (25) being provided along the direction of a material dispensing guide block (26) pointing toward the cover plate (27); The part tooling (9) comprises a lifting cylinder (29), a fixture chuck sleeve (34), a clamping fixture (36) and a clamping jaw (38). The lifting cylinder (29) is mounted on the tooling base plate (28) along the Z-axis direction. The driving end on the lifting cylinder (29) is connected to the clamping jaw guide block (31) through a cylinder connecting plate (30). The clamping jaw (38) is connected to the clamping jaw guide block (31). The inner side of the clamping jaw (38) is mounted with a fixture chuck sleeve (34) through a tooling seat (35). The inner side of the bottom of the fixture chuck sleeve (34) is provided with equal height bolts (32). The inner side of the top of the fixture chuck sleeve (34) is provided with a clamping fixture (36).

2. The injection pen button assembly press-fitting mechanism according to claim 1, characterized in that: A first spring (33) is arranged on the outer side of the equal height bolt (32), and a second spring (37) is also connected between the clamping jaws (38).

3. The injection pen button assembly press-fitting mechanism according to claim 1, characterized in that: It also includes a detector (11), which is arranged at a position between the button material dispensing mechanism (8) and the part tooling (9), and the detector (11) is mounted on the detection bracket (10) along the Z-axis direction.

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