Rubber bushing press-fitting machine

Abstract

The utility model relates to the technical field of automobile part assembling equipment, in particular to a rubber bushing press-fitting machine which comprises a machine base and an extrusion mechanism, the extrusion mechanism comprises two extrusion heads, extrusion grooves are formed in the inner sides of the two extrusion heads, the two extrusion grooves can be jointly spliced into a press-fitting channel, extrusion parts are arranged at the lower ends of the extrusion grooves, and the press-fitting channel is communicated with the extrusion grooves. And the inner diameter of the extrusion part is gradually reduced from top to bottom. During use, a rubber bushing is placed in a press-fitting channel formed by the two extrusion grooves, and the extrusion mechanism is driven by the driving cylinder to move downwards, so that a workpiece is clamped by the lower end of the extrusion head and the upper end of the positioning cylinder together, and the workpiece is positioned. The press-fitting head is driven by the press-fitting air cylinder to jack the rubber bushing downwards, so that the rubber bushing is compressed, and the inner diameter of the rubber bushing is reduced. And under the extrusion of the press-fitting head, the inner wall of the mounting hole is clamped into the clamping groove in the outer wall of the rubber bushing, so that the assembly of the rubber bushing is completed. Operation is easy and convenient, and the assembling speed is effectively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts assembly equipment, and particularly relates to a rubber bushing press-fitting machine. Background Art

[0002] A rubber bushing is a ring-shaped component made of rubber and used as a gasket. A clamping groove is circumferentially arranged on the outer wall, and it is usually used in industrial fields such as machinery, automobiles, and chemicals to play roles such as shock absorption, vibration isolation, and sealing. Usually, an installation hole is provided on a workpiece, and the rubber bushing is installed in the installation hole on the workpiece. The inner wall of the installation hole is clamped into the clamping groove on the outer wall of the rubber bushing to form a fit to prevent the rubber bushing from detaching from the installation hole.

[0003] At present, rubber bushings are mainly assembled onto workpieces by manual press-fitting. In specific operations, workers use a clamp and a hammer in cooperation to apply an axial pressure to the rubber bushing and press it into the installation hole. This manual operation method has problems such as complex operation and low production efficiency, which has a great impact on the efficiency of the entire production line. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a rubber bushing press-fitting machine to achieve the purpose of improving the assembly speed of rubber bushings and reducing the complexity of manual operation.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A rubber bushing press-fitting machine includes:

[0006] A machine base provided with an installation cavity;

[0007] A positioning cylinder fixedly installed in the installation cavity;

[0008] An extrusion mechanism fixedly installed on the output end of the positioning cylinder. The extrusion mechanism includes two extrusion heads. Extrusion grooves are respectively opened on the inner sides of the two extrusion heads. The two extrusion grooves can be jointly combined into a press-fitting channel. An extrusion part is arranged at the lower end of the extrusion groove, and the inner diameter of the extrusion part gradually shrinks from top to bottom;

[0009] A press-fitting cylinder fixedly installed on the machine base. The output end of the press-fitting cylinder faces the press-fitting channel. A press-fitting head is arranged at the output end of the press-fitting cylinder. The press-fitting head is located in the installation cavity and corresponds to the press-fitting channel;

[0010] A positioning cylinder fixedly installed at the bottom inside the installation cavity. The positioning cylinder is located below the press-fitting cylinder and corresponds to the press-fitting channel. The inner diameter of the positioning cylinder allows a rubber bushing to pass through.

[0011] The present utility model is further configured such that the extrusion mechanism further includes an extrusion connection seat and a clamping cylinder. The extrusion connection seat is fixedly installed on the output end of the positioning cylinder. The clamping cylinder is fixedly installed on the extrusion connection seat. The clamping cylinder has two jaws that can approach each other. The two extrusion heads are respectively fixedly connected to the inner sides of the two jaws.

[0012] The present utility model is further configured such that a positioning post is slidably connected inside the positioning cylinder. The top end of the positioning post has a positioning head that protrudes above the top of the positioning cylinder. The positioning head matches the mounting hole on the workpiece. A return spring is provided between the bottom of the positioning post and the machine base.

[0013] The present utility model is further configured such that a pre-pressing portion and a guiding portion are further provided in the extrusion groove, which are arranged in sequence from top to bottom. The pre-pressing portion and the guiding portion are both located above the extrusion portion. The inner diameter of the pre-pressing portion gradually contracts from top to bottom. The inner diameter of the guiding portion is the same as that of the lower end of the pre-pressing portion and the upper end of the extrusion portion.

[0014] The present utility model is further configured such that the machine base includes a bottom plate, a top plate, and two side plates. The two side plates are both fixedly installed between the top plate and the bottom plate. The bottom plate, the top plate, and the two side plates jointly enclose an installation cavity. A through hole is provided on the top plate. The pressing cylinder is fixedly installed on the top plate. The output end of the pressing cylinder passes through the through hole.

[0015] In summary, a rubber bushing press provided by the present utility model has at least the following

[0016] Advantages:

[0017] 1. The complexity of rubber bushing assembly is reduced, thereby improving the efficiency of bushing assembly.

[0018] 2. By driving the two jaws of the clamping cylinder to separate from each other, the effect of preventing the rubber bushing from getting stuck inside the extrusion groove and making it inconvenient to take out the rubber bushing is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a three-dimensional structural schematic diagram of the embodiment;

[0021] Figure 2It is a three-dimensional structural schematic diagram of the extrusion mechanism and the positioning cylinder in the embodiment;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the extrusion head in the embodiment;

[0023] Figure 4 It is an elevation view of the extrusion head seen from the front inside the extrusion groove in the embodiment;

[0024] Figure 5 It is a front view of the embodiment;

[0025] Figure 6 It is Figure 5 a cross-sectional view taken at a-a in;

[0026] Figure 7 It is a three-dimensional structural schematic diagram when the two jaws in the embodiment are separated.

[0027] In the figure: machine base 1, bottom plate 101, top plate 102, side plate 103, positioning cylinder 2, extrusion mechanism 3, extrusion head 301, extrusion groove 302, extrusion part 303, clamping cylinder 304, extrusion connecting seat 305, jaw 306, pre-pressing part 307, guiding part 308, press-fitting cylinder 4, press-fitting head 5, positioning cylinder 6, positioning column 7, positioning head 8, return spring 9. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following combines the attached Figures 1-7 and the detailed implementation manners to further elaborate on the present invention in detail.

[0029] Please refer to Figures 1-7, a rubber bushing press-fitting machine provided by the utility model includes: a machine base 1, a positioning cylinder 2, an extrusion mechanism 3, a press-fitting cylinder 4 and a positioning cylinder 6. An installation cavity is provided on the machine base 1, and the installation cavity penetrates through the front and rear sides of the machine base 1. The positioning cylinder 2 is fixedly installed in the installation cavity, and the output end of the positioning cylinder 2 faces upward. The extrusion mechanism 3 is fixedly installed on the output end of the positioning cylinder 2. The extrusion mechanism 3 includes two extrusion heads 301, and extrusion grooves 302 are formed on the inner sides of the two extrusion heads 301. The two extrusion grooves 302 are arranged oppositely, and the two extrusion grooves 302 can be jointly combined into a press-fitting channel, and the cross-section of the press-fitting channel is circular. The press-fitting channel is arranged vertically, and the diameter of the press-fitting channel matches the diameter of the rubber bushing in the natural state. An extrusion part 303 is provided at the lower end of the extrusion groove 302, and the inner diameter of the extrusion part 303 gradually shrinks from top to bottom. When the two extrusion heads 301 are combined, the two extrusion parts 303 jointly form a horn-shaped extrusion channel with a gradually shrinking diameter from top to bottom. The press-fitting cylinder 4 is fixedly installed on the machine base 1, and the output end of the press-fitting cylinder 4 faces the press-fitting channel. A press-fitting head 5 is provided at the output end of the press-fitting cylinder 4. The press-fitting head 5 is cylindrical. The press-fitting head 5 is located in the installation cavity, and the press-fitting head 5 corresponds to the press-fitting channel. The positioning cylinder 6 is fixedly installed at the bottom inside the installation cavity. The positioning cylinder 6 is located in front of the positioning cylinder 2 and below the press-fitting cylinder 4. The positioning cylinder 6 corresponds to the press-fitting channel. The center of the positioning cylinder 6 is aligned with the center of the press-fitting channel, and the inner diameter of the positioning cylinder 6 allows the rubber bushing to pass through.

[0030] By adopting the above technical solution, during use, the operator places the workpiece to be assembled with the rubber bushing on the positioning cylinder 6, and the mounting hole on the workpiece is aligned with the center of the positioning cylinder 6, so that the center of the mounting hole is aligned with the center of the press-fitting channel. The rubber bushing is placed into the press-fitting channel formed by the two extrusion grooves 302. The extrusion mechanism 3 is driven by the cylinder to move downward, so that the lower ends of the extrusion heads 301 and the upper end of the positioning cylinder 6 jointly clamp the workpiece, thereby positioning the workpiece. The press-fitting head 5 is driven by the press-fitting cylinder 4 to move downward, so that the press-fitting head 5 presses the rubber bushing downward. When the rubber bushing moves downward in the extrusion groove 302, since the extrusion part 303 is provided at the lower end of the extrusion groove 302 and the inner diameter of the extrusion part 303 gradually decreases, the rubber bushing is compressed during the downward movement, and the inner diameter of the rubber bushing decreases. Under the extrusion of the press-fitting head 5, the lower half of the rubber bushing is pressed into the mounting hole on the workpiece, so that the inner wall of the mounting hole is stuck into the card slot on the outer wall of the rubber bushing, thereby completing the assembly of the rubber bushing. The operation is simple and convenient, and the assembly speed is effectively improved.

[0031] Please continue to refer to Figure 1 , Figure 2 and Figure 7, when the rubber bushing is pressed into the mounting hole of the workpiece, the upper section of the rubber bushing is still located in the extrusion channel formed by the two extrusion parts 303. This requires the operator to pull the workpiece downward with force to disengage the upper section of the rubber bushing from the extrusion channel, causing inconvenience to the operator. To solve the problem of the rubber bushing being inconvenient to remove from the extrusion channel, further, the extrusion mechanism 3 further includes an extrusion connecting seat 305 and a clamping cylinder 304. The extrusion connecting seat 305 is fixedly installed on the output end of the positioning cylinder 2, and the clamping cylinder 304 is fixedly installed on the extrusion connecting seat 305. The clamping cylinder 304 is a prior art. The clamping cylinder 304 has two jaws 306 that can approach each other. The two extrusion heads 301 are respectively fixedly connected to the inner sides of the two jaws 306. After the rubber bushing is pressed into the mounting hole of the workpiece, the clamping cylinder 304 is used to drive the two jaws 306 to separate, thereby driving the two extrusion heads 301 to separate from each other, so that the upper section of the rubber bushing is disengaged from the extrusion channel, achieving the effect of facilitating the removal of the rubber bushing.

[0032] Please continue to refer to Figure 1 , Figure 5 and Figure 6 , in order to facilitate the positioning of the workpiece and align the center of the mounting hole of the workpiece with the center of the extrusion channel, further, a positioning column 7 is slidably connected in the positioning cylinder 6. The top of the positioning column 7 has a positioning head 8. The positioning head 8 is cylindrical, and the center of the positioning head 8 is aligned with the center of the extrusion channel. The positioning head 8 protrudes from the top of the positioning cylinder 6. The positioning head 8 matches the mounting hole on the workpiece. A return spring 9 is provided between the bottom of the positioning column 7 and the machine base 1. When positioning the workpiece, the mounting hole is sleeved on the positioning head 8, so that the mounting hole is aligned with the extrusion channel for convenient pressing work. When the extrusion head 301 moves downward, under the extrusion of the rubber bushing, the positioning head 8 contracts downward until the rubber bushing is pressed into the mounting hole of the workpiece. After the rubber bushing is assembled to the workpiece, the pressing cylinder 4 drives the pressing head 5 to move upward, so that the extrusion head 301 is separated from the positioning cylinder 6. Under the action of the return spring 9, the positioning column 7 moves upward, driving the positioning head 8 to reset for positioning the next workpiece.

[0033] Please continue to refer to Figure 3 and Figure 4, since the distance between the upper end of the extrusion groove 302 and the extrusion part 303 is relatively long, in order to prevent the rubber bushing from turning and displacing in the extrusion channel, resulting in the situation that the rubber bushing cannot be accurately pressed into the installation hole of the workpiece. Further, a pre-pressing part 307 and a guiding part 308 are sequentially arranged in the extrusion groove 302 from top to bottom, and both the pre-pressing part 307 and the guiding part 308 are located above the extrusion part 303. The upper end of the pre-pressing part 307 is spaced from the upper end of the extrusion groove 302, and the inner diameter of the pre-pressing part 307 gradually shrinks from top to bottom. The inner diameter of the guiding part 308 is the same as the inner diameter of the lower end of the pre-pressing part 307 and the upper end of the extrusion part 303, and the inner diameter of the guiding part 308 remains unchanged from top to bottom. During the process of press-fitting the rubber bushing, after the rubber bushing is pressed into the press-fitting channel, it is immediately extruded by the pre-pressing part 307, so that the rubber bushing is preliminarily compressed, and the inner diameter of the rubber bushing becomes smaller. After the rubber bushing is preliminarily compressed, it enters the guiding channel. Since the rubber bushing is preliminarily compressed, the rubber bushing fits more tightly with the guiding channel, so as to achieve the effect of preventing the rubber bushing from flipping and offsetting before entering the extrusion channel formed by the extrusion part 303.

[0034] Please continue to refer to Figure 1 , in some embodiments, specifically, the machine base 1 includes a bottom plate 101, a top plate 102 and two side plates 103. The two side plates 103 are both fixedly installed between the top plate 102 and the bottom plate 101. The two side plates 103 are arranged in parallel. The bottom plate 101, the top plate 102 and the two side plates 103 jointly enclose an installation cavity. A through hole is opened on the top plate 102, and the press-fitting cylinder 4 is fixedly installed on the top plate 102. The output end of the press-fitting cylinder 4 passes through the through hole. This makes the overall structure of the product compact and has a high space utilization rate. At the same time, the components performing actions are all located in the installation cavity, improving the safety factor.

[0035] It should be noted that the words indicating directions in this article, such as up and down, etc., are all set in the Figure 1 direction for the convenience of description and do not have other specific meanings.

[0036] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that an article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the article or device including the above elements.

[0037] In this article, specific examples are used to elaborate on the principle and implementation mode of the present utility model. The description of the above embodiments is only used to help understand the core idea of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A rubber bushing press machine, characterized in that: include: A machine base (1) is provided with a mounting cavity; A positioning cylinder (2) is fixedly installed in the installation cavity; The extrusion mechanism (3) is fixedly mounted on the output end of the positioning cylinder (2), and the extrusion mechanism (3) comprises two extrusion heads (301). The inner sides of the two extrusion heads (301) are each provided with an extrusion groove (302). The two extrusion grooves (302) can be combined together to form a press-fitting channel. The lower end of the extrusion groove (302) is provided with an extrusion portion (303), and the inner diameter of the extrusion portion (303) gradually shrinks from top to bottom. A press-fitting cylinder (4) is fixedly mounted on the machine base (1), the output end of the press-fitting cylinder (4) faces the press-fitting channel, a press-fitting head (5) is provided at the output end of the press-fitting cylinder (4), the press-fitting head (5) is located in the mounting cavity, and the press-fitting head (5) corresponds to the press-fitting channel; A positioning cylinder (6) is fixedly mounted on the bottom of the inner side of the mounting cavity. The positioning cylinder (6) is located below the press-fitting cylinder (4). The positioning cylinder (6) corresponds to the press-fitting channel. The inner diameter of the positioning cylinder (6) is large enough for a rubber bushing to pass through.

2. A rubber bushing press as claimed in claim 1, characterized in that: The extrusion mechanism (3) further comprises an extrusion connection seat (305) and a clamping cylinder (304); the extrusion connection seat (305) is fixedly mounted on the output end of the positioning cylinder (2); the clamping cylinder (304) is fixedly mounted on the extrusion connection seat (305); the clamping cylinder (304) has two clamping jaws (306) that can approach each other; and the two extrusion heads (301) are respectively fixedly connected to the inner sides of the two clamping jaws (306).

3. A rubber bushing press as claimed in claim 2, characterized in that: A positioning column (7) is slidably connected inside the positioning cylinder (6), and a positioning head (8) is provided at the top end of the positioning column (7). The positioning head (8) protrudes from the top of the positioning cylinder (6), and the positioning head (8) matches the mounting hole on the workpiece. A return spring (9) is provided between the bottom of the positioning column (7) and the machine base (1).

4. A rubber bushing press as claimed in any one of claims 1 to 3, characterized in that: The extrusion groove (302) is also provided with a pre-pressing portion (307) and a guide portion (308) which are arranged in sequence from top to bottom. The pre-pressing portion (307) and the guide portion (308) are both located above the extrusion portion (303). The inner diameter of the pre-pressing portion (307) gradually shrinks from top to bottom. The inner diameter of the guide portion (308) is the same as the inner diameter of the lower end of the pre-pressing portion (307) and the upper end of the extrusion portion (303).

5. A rubber bushing press as claimed in claim 4, characterized in that: The machine base (1) comprises a bottom plate (101), a top plate (102) and two side plates (103); the two side plates (103) are fixedly mounted between the top plate (102) and the bottom plate (101); the bottom plate (101), the top plate (102) and the two side plates (103) together enclose a mounting cavity; a through hole is provided on the top plate (102); the press-fitting cylinder (4) is fixedly mounted on the top plate (102); and the output end of the press-fitting cylinder (4) is inserted into the through hole.

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