Automatic press-fitting machine for snap spring

Abstract

The utility model discloses an automatic press-fitting machine for snap springs, which belongs to the technical field of press-fitting of snap springs and comprises a supporting base, a support is fixed at the top of the supporting base, an operating platform is mounted at the top of the support, a fixing seat is mounted at the top of the operating platform, and a connecting frame is fixed at the top of the fixing seat. A movable top plate capable of moving back and forth in the groove is arranged on the upper portion of the operating table, a clamp spring storage column sleeved with a clamp spring is mounted on the front face of the connecting frame, the bottom of the clamp spring storage column extends downwards to the position above the operating table, and a groove is formed in the top of the operating table. And meanwhile, the clamp spring can be stably conveyed under the limitation of the operation table and the limiting plate, then a male clamping jaw is further installed on the clamp spring pressing head and can clamp a workpiece, the stability of the workpiece and the clamp spring is ensured, the workpiece is pressed downwards through a pressing column, the clamp spring is clamped on the workpiece, and the clamp spring installation accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of snap ring press-fitting, in particular to an automatic snap ring press-fitting machine. Background Technique

[0002] A snap ring, also called a retaining ring or a circlip, belongs to a kind of fastener, and is used to be installed in the shaft groove or hole groove of a machine or equipment, and plays a role in preventing the parts on the shaft or in the hole from moving axially.

[0003] In the prior art, the content of the Chinese utility model with the publication number: CN203875575U discloses an open snap ring automatic feeding and press-fitting machine, which is provided with an adjustable bracket, a snap ring storage shaft for stacking snap rings, a sliding plate, a self-resetting plate and a snap ring press-fitting tooling. The upper end of the adjustable bracket is installed with a vertically placed snap ring storage shaft, and the lower end is installed with a horizontally placed sliding plate. The sliding plate is slidably connected to the adjustable bracket through a slide rail; the self-resetting pressing plate is installed above the sliding plate and can slide freely on the sliding plate. One end of the sliding plate corresponding to the long hole groove is provided with a snap ring placement groove; a long strip-shaped thin sheet is arranged axially on the outer side of the snap ring storage shaft, and the width of the thin sheet is smaller than the width of the snap ring bayonet; the snap ring press-fitting tooling is provided with a first cylinder, a press-fitting cylinder and a conical guide block from top to bottom. The middle of the press-fitting cylinder is hollow, and the conical guide block can slide therein. The whole set of equipment has a simple structure, uses fewer parts, is easy to maintain, and for different specifications of snap rings, the corresponding tooling can be conveniently replaced.

[0004] In the above technical solution, the snap ring needs to be horizontally conveyed to the lower part of the snap ring press-fitting tooling through the sliding plate. During the conveying process, the snap ring is stored in the snap ring placement groove. Since there is no protection structure during the movement of the sliding plate, the stability of the sliding plate cannot be guaranteed. Therefore, the stability of the snap ring cannot be guaranteed, resulting in the position of the snap ring not being accurately under the conical guide block after being transferred to the bottom of the snap ring press-fitting tooling, which is likely to cause a decrease in the installation accuracy of the snap ring. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automatic snap ring press-fitting machine. The feeding cylinder drives the movable top plate to move back and forth in the groove. When the movable top plate moves to the rear of the snap ring storage column, the snap ring falls from the snap ring storage column into the groove, and then the movable top plate drives the snap ring to move forward. When moving, it is restricted by the operating platform and the limit plate, and at the same time, its position is restricted by the limit block, and it can be accurately moved under the snap ring press head, so as to improve the press-fitting accuracy of the snap ring and solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: a snap ring automatic press, including a support base, a bracket is fixed on the top of the support base, an operating table is installed on the top of the bracket, a fixed seat is installed on the top of the operating table, a connecting frame is fixed on the top of the fixed seat, a snap ring storage column sleeving the snap ring is installed on the front of the connecting frame, the bottom of the snap ring storage column extends downward to above the operating table, a groove is opened on the top of the operating table, a movable top plate is movably arranged in the inner cavity of the groove, a feeding assembly for conveying the snap ring is arranged on the top of the support base, a support frame is fixed on the top of the operating table, and a snap ring pressing head is arranged at the bottom of the support frame, and the snap ring pressing head is located above the operating table.

[0007] Preferably, the feeding assembly includes a feeding cylinder installed on the top of the support base, a connecting block is fixed on the piston rod of the feeding cylinder, and the top of the connecting block extends upward and is fixedly connected to the bottom of the movable top plate.

[0008] Preferably, the snap ring pressing head includes a mounting frame, a downward pressing cylinder is installed inside the mounting frame, a downward pressing column is fixed on the piston rod of the downward pressing cylinder, and the bottom of the downward pressing column penetrates through the mounting frame and extends downward.

[0009] Preferably, two groups of SCHUNK jaws are arranged on the back of the mounting frame, and the SCHUNK jaws are slidably installed on the sliding seat.

[0010] Preferably, proximity switches are installed on the outside of the mounting frame, and the proximity switches are located on both sides of the mounting frame.

[0011] Preferably, a limiting block is installed at the front end of the top of the operating table, and the limiting block is located directly in front of the movable top plate.

[0012] Preferably, a limiting plate is installed on the top of the operating table, the limiting plate is located above the groove, a through groove is opened on the top of the limiting plate, and the bottom of the snap ring storage column penetrates through the through groove and fits on the top of the movable top plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. With the movable top plate that can move back and forth in the groove, the snap rings can be sequentially conveyed forward one by one and transferred to the limiting block. At the same time, under the restriction of the operating table and the limiting plate, the snap rings can be stably conveyed. Then, SCHUNK jaws are also installed on the snap ring pressing head to clamp the workpiece, ensuring the stability of the workpiece and the snap ring. Then, the workpiece is pressed down by the downward pressing column to make the snap ring stuck on the workpiece, ensuring the accuracy of snap ring installation.

[0015] 2. By setting a proximity switch, the present utility model ensures the distance between the circlip press head and the lower operating table, preventing the workpiece from being unable to move when it abuts against the top of the operating table. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a partial three-dimensional structural diagram of the present utility model;

[0018] Figure 3 is a partial side view structural diagram of the present utility model;

[0019] Figure 4 is a three-dimensional structural diagram of the circlip press head of the present utility model;

[0020] Figure 5 is a side view structural diagram of the circlip press head of the present utility model.

[0021] Reference numerals in the figures: 1, support base; 2, bracket; 3, operating table; 4, fixed seat; 5, connecting frame; 6, circlip storage column; 7, movable top plate; 8, feeding assembly; 81, feeding cylinder; 82, connecting block; 9, support frame; 10, circlip press head; 101, mounting frame; 102, downward pressing cylinder; 103, downward pressing column; 11, Schunk gripper; 12, sliding seat; 13, proximity switch; 14, limit block; 15, limit plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides a Figures 1 to 5 shown circlip automatic press-fitting machine, including a support base 1, a bracket 2 is fixed on the top of the support base 1, an operating table 3 is installed on the top of the bracket 2, a fixed seat 4 is installed on the top of the operating table 3, a connecting frame 5 is fixed on the top of the fixed seat 4, a circlip storage column 6 for sleeving the circlip is installed on the front of the connecting frame 5, the bottom of the circlip storage column 6 extends downward to above the operating table 3, a groove is opened on the top of the operating table 3, a movable top plate 7 is movably arranged in the inner cavity of the groove, a feeding assembly 8 for conveying the circlip is arranged on the top of the support base 1, a support frame 9 is fixed on the top of the operating table 3, a circlip press head 10 is arranged at the bottom of the support frame 9, and the circlip press head 10 is located above the operating table 3;

[0024] Through the movable top plate 7 that can move back and forth in the groove, the single circlips can be conveyed forward in sequence and transferred to the limiting block 14. At the same time, under the restriction of the operating table 3 and the limiting plate 15, the circlips can be stably conveyed. Then, a Schunk jaw 11 is also installed on the circlip press head 10, which can clamp the workpiece to ensure the stability of the workpiece and the circlip. Then, the workpiece is pressed down by the pressing column 103 so that the circlip is stuck on the workpiece to ensure the accuracy of the circlip installation.

[0025] The feeding assembly 8 includes a feeding cylinder 81 installed on the top of the support base 1. The piston rod of the feeding cylinder 81 is fixed with a connecting block 82. The top of the connecting block 82 extends upward and is fixedly connected to the bottom of the movable top plate 7. The feeding cylinder 81 drives the connecting block 82 to move back and forth, and then the connecting block 82 drives the movable top plate 7 to move back and forth in the groove, facilitating the sequential conveyance of the circlips.

[0026] The circlip press head 10 includes a mounting frame 101. A pressing cylinder 102 is installed inside the mounting frame 101. The piston rod of the pressing cylinder 102 is fixed with a pressing column 103. The bottom of the pressing column 103 penetrates through the mounting frame 101 and extends downward. The pressing cylinder 102 drives the pressing column 103 to move up and down inside the mounting frame 101 to ensure the stability of the pressing of the pressing column 103.

[0027] Two groups of Schunk jaws 11 are arranged on the back of the mounting frame 101. The Schunk jaws 11 are slidably installed on the sliding seat 12. By installing the Schunk jaws 11 on the back of the mounting frame 101 for clamping the workpiece, the workpiece and the circlip can be positioned. Then, the workpiece is pressed down by the pressing column 103 so that the circlip is accurately sleeved on the workpiece.

[0028] A proximity switch 13 is installed on the outside of the mounting frame 101. The proximity switch 13 is located on both sides of the mounting frame 101. Through the setting of the proximity switch 13, the distance between the circlip press head 10 and the lower operating table 3 is ensured, avoiding the workpiece being against the top of the operating table 3 and unable to move.

[0029] A limiting block 14 is installed at the front end of the top of the operating table 3. The limiting block 14 is located directly in front of the movable top plate 7. Through the setting of the limiting block 14, it is convenient to limit the circlip, ensuring that the circlip moves forward to the designated position under the push of the movable top plate 7, avoiding the dislocation of the circlip and the workpiece, and guaranteeing the accuracy of the circlip pressing.

[0030] A limit plate 15 is installed on the top of the operating table 3. The limit plate 15 is located above the groove. A through groove is provided at the top of the limit plate 15. The bottom of the retaining ring storage column 6 penetrates through the through groove and fits against the top of the movable top plate 7. Through the arrangement of the limit plate 15, it is convenient to limit the conveyance of the retaining ring in the groove, avoiding the up-and-down shaking of the retaining ring during conveyance, which may cause it to splash out of the groove. The limit plate 15 enables the retaining ring to move stably in the groove.

[0031] During specific use, the retaining rings are successively sleeved on the retaining ring storage column 6. Then, the Schunk jaws 11 grip the workpiece. Then, the feeding cylinder 81 drives the connecting block 82 to move backward, causing the movable top plate 7 to move backward in the groove together with the connecting block 82. When the movable top plate 7 moves to the rear of the retaining ring storage column 6, the lowermost retaining ring sleeved on the retaining ring storage column 6 naturally drops into the groove. Then, the feeding cylinder 81 drives the connecting block 82 to move the movable top plate 7 forward, causing the retaining ring that has fallen into the groove to move forward. During the forward movement of the movable top plate 7, the movable top plate 7 supports the retaining ring above, preventing it from continuing to fall. At the same time, the movable top plate 7 conveys the retaining ring forward in the groove to the position of the limit block 14. Then, the pressing cylinder 102 drives the pressing column 103 to move downward in the mounting frame 101 to press the workpiece, causing the workpiece to be inserted into the retaining ring, and the retaining ring is supported on the surface of the workpiece.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic press-fitting machine for retaining springs, comprising a supporting base (1), characterized in that: A bracket (2) is fixed on the top of the support base (1), an operating table (3) is installed on the top of the bracket (2), a fixing seat (4) is installed on the top of the operating table (3), a connecting frame (5) is fixed on the top of the fixing seat (4), a retaining spring storage column (6) on which a retaining spring is mounted is installed on the front of the connecting frame (5), the bottom of the retaining spring storage column (6) extends downward to the top of the operating table (3), a groove is opened on the top of the operating table (3), a movable top plate (7) is movably provided in the inner cavity of the groove, a loading assembly (8) for conveying retaining springs is provided on the top of the support base (1), a support frame (9) is fixed on the top of the operating table (3), a retaining spring pressure head (10) is provided at the bottom of the support frame (9), and the retaining spring pressure head (10) is located above the operating table (3).

2. The automatic press-fitting machine for retaining springs according to claim 1, characterized in that: The loading assembly (8) comprises a loading cylinder (81) mounted on the top of the support base (1), the piston rod of the loading cylinder (81) being fixed with a connecting block (82), the top of the connecting block (82) extending upward and being fixedly connected to the bottom of the movable top plate (7).

3. The automatic press-fitting machine for retaining springs according to claim 1, characterized in that: The retaining spring pressure head (10) comprises a mounting frame (101), a downward pressure cylinder (102) is installed inside the mounting frame (101), a downward pressure column (103) is fixed to the piston rod of the downward pressure cylinder (102), and the bottom of the downward pressure column (103) passes through the mounting frame (101) and extends downward.

4. The automatic press-fitting machine for retaining springs according to claim 3, characterized in that: Two groups of Schunk clamping jaws (11) are arranged on the back of the mounting frame (101), and the Schunk clamping jaws (11) are slidably mounted on a sliding seat (12).

5. The automatic press-fitting machine for retaining springs according to claim 3, characterized in that: A proximity switch (13) is installed on the outer side of the mounting frame (101), and the proximity switch (13) is located on both sides of the mounting frame (101).

6. The automatic press-fitting machine for retaining springs according to claim 1, characterized in that: A limit block (14) is installed at the front end of the top of the operating table (3), and the limit block (14) is located directly in front of the movable top plate (7).

7. The automatic press-fitting machine for retaining springs according to claim 1, characterized in that: A limit plate (15) is installed on the top of the operating table (3), the limit plate (15) is located above the groove, a through slot is provided on the top of the limit plate (15), and the bottom of the retaining spring storage column (6) passes through the through slot and fits on the top of the movable top plate (7).

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