Door closer housing bottom milling machine

Abstract

The utility model discloses a door closer shell milling machine, including the opposite arrangement of milling head, clamping seat, and the clamping seat still can be set out with the clamping column of holding end face, the clamping column is used for inserting the side surface connecting hole of door closer shell, and the clamping column is adapted to be able to eject to first position, second position, at second position, the clamping column drives door closer shell and abuts at the holding end face. When clamping, the clamping column is in first position, the side surface connecting hole of door closer shell can be aligned with the clamping column from the side at this moment, and make the clamping column insert to the connecting hole. Subsequently, the clamping column ejects to second position, so that door closer shell is abutted on the holding end face, thereby completing the clamping fixation of door closer shell. Compared with prior art, the operator only needs to put the door closer shell into the clamping column to complete the clamping action, so that the efficiency of milling bottom operation is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of door closer manufacturing technology, and in particular, to a door closer housing bottom milling machine. Background Technology

[0002] A door closer is a hydraulic automatic door closing device that drives the door to close via an internal spring and hydraulic system. Its core principle is based on a gear-driven rack and pinion system that compresses the spring. Hydraulic oil, passing through a throttle valve, acts as a buffer, allowing for adjustable closing speed. Its main functions include automatic door closing, door protection, reduced impact noise, and fire and smoke isolation. It is widely used in public buildings, residences, and safety passages. Common types include externally mounted, top-mounted, and floor-spring (bottom-mounted) types.

[0003] The bottom surface of the door closer housing needs to be milled flat during manufacturing. However, traditional milling machines have not been specifically modified for milling the bottom of the door closer housing, especially when clamping the door closer housing, which requires the use of a bench vise for clamping and fixing. The operation of the bench vise requires manual loosening and tightening, which reduces the efficiency of the bottom milling operation. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a door closer housing bottom milling machine.

[0005] The objective of this utility model is achieved through the following technical solution: A door closer housing milling machine includes a milling head and a clamping seat arranged opposite to each other. The clamping seat includes a bearing end face and a clamping post that can be ejected from the clamping seat. The clamping post is used to insert into a side connection hole of the door closer housing and is adapted to be ejected to a first position and a second position. In the second position, the clamping post drives the door closer housing to abut against the bearing end face.

[0006] Preferably, a limiting post is provided on the bearing end face, and in the second position, the limiting post is inserted into the screw hole of the door closer housing.

[0007] Preferably, the clamping seat is provided with a cylinder, and the clamping column is provided on the ejector shaft of the cylinder.

[0008] Preferably, the bearing end face includes two opposing bearing portions, and an avoidance area is formed between the two bearing portions to allow the main body of the door closer housing to engage.

[0009] Preferably, the clamping seat has two opposing support columns, and the end faces of the support columns constitute the support portion.

[0010] Preferably, the clamping seat is disposed on a transfer table, which is adapted to move the clamping seat closer to or further away from the milling head.

[0011] Preferably, the milling head has an air nozzle on its housing sidewall, and the air nozzle is adapted to spray airflow toward one side of the clamping seat.

[0012] Preferably, the jet nozzle is connected to a pumping system.

[0013] Preferably, a bladder is provided on the side wall of the milling head housing, the air nozzle is connected to the bladder pipe, and the clamping post is also adapted to be able to be pushed out to a third position. During the process of entering the third position, the clamping post squeezes the bladder.

[0014] Preferably, the jet nozzle is hinged to the side wall of the milling head housing, a drive tooth is provided on the rotating shaft of the jet nozzle, a drive rod is provided on the clamping post, and a toothed structure is constructed on the side wall of the drive rod; when the clamping post is pushed out from the first position to the third position, the toothed structure engages with the drive tooth, thereby driving the jet nozzle to swing.

[0015] The beneficial effects of this invention are as follows: During clamping, the clamping post is in the first position. At this time, the side connecting hole of the door closer housing can be aligned with the clamping post from the side, allowing the clamping post to be inserted into the connecting hole. Subsequently, the clamping post is pushed out to the second position, causing the door closer housing to abut against the bearing end face, thereby completing the clamping and fixing of the door closer housing. Compared with the prior art, the operator only needs to fit the door closer housing into the clamping post to complete the clamping action, which greatly improves the efficiency of the bottom milling operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 for Figure 1 Enlarged view of part A; Figure 3 A structural diagram of the avoidance area; Figure 4 This is a schematic diagram of the jet nozzle.

[0017] Reference numerals: 1. Milling head; 2. Clamping seat; 3. Bearing end face; 4. Clamping post; 5. Limiting post; 6. Bearing part; 7. Clearance area; 8. Bearing post; 9. Air nozzle; 10. Bag body; 11. Drive tooth; 12. Drive rod; 13. Transfer table; 14. Door closer housing; 15. Cutting tool. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figures 1 to 4 As shown, a door closer housing milling machine includes a milling head 1 and a clamping seat 2 arranged opposite each other, for example, the two can be arranged in an up-down opposite manner. The milling head 1 specifically includes a housing and a cutting tool 15 that is rotatably disposed at the bottom of the housing by a motor. In one example, the cutting tool 15 is adapted to be able to transfer at least vertically, thereby adjusting the distance between it and the clamping seat 2, and thereby controlling the cutting amount of the cutting tool 15.

[0020] The clamping base 2 preferably has two symmetrically arranged bearing columns 8, and the top surface of each bearing column 8 is provided with a bearing part 6. The two bearing parts 6 cooperate to form a bearing end face 3 for abutting and placing the door closer housing 14, and an avoidance area 7 is also formed between the two bearing columns 8.

[0021] With the door closer housing 14 clamped in the clamped state, the main body of the door closer housing 14 is inserted into the clearance area 7, while the two connecting ears of the door closer housing 14 are respectively placed on the two bearing columns 8. It can be imagined that if a downward clamping force is applied to the door closer housing 14 at this time, the clamping and fixing of the door closer housing 14 can be completed.

[0022] In this disclosure, the clamping base 2 is provided with a clamping post 4 that can be ejected by a cylinder. For example, the clamping post 4 is adapted to move at least between a first position, a second position, and a third position. In a preferred example, the clamping post 4 can be ejected to the first position, at which point the operator can align the side connection hole of the door closer housing 14 with the clamping post 4 from the side and insert the clamping post 4 into the connection hole. Subsequently, the clamping post 4 is ejected to the second position, so that the door closer housing 14 abuts against the bearing end face 3, thereby completing the above-mentioned clamping and fixing of the door closer housing 14.

[0023] In a possible example, the bearing end face 3 may not be provided by two bearing columns 8. For example, a clamping block may be provided on the clamping seat 2, and the door closer housing 14 may be engaged by opening a clearance groove on the clamping block that matches the shape of the door closer housing 14.

[0024] A limiting post 5 may preferably be provided on the bearing end face 3, and the position of the limiting post 5 corresponds to the screw hole of the door closer housing 14. In particular, when the clamping post 4 is pushed out to the second position to press the door closer housing 14, the limiting post 5 can be inserted into the screw hole of the door closer housing 14, for example, to counteract the possible displacement that may occur when the door closer housing 14 contacts the milling head 1, making the bottom milling operation safer and more reliable.

[0025] In some embodiments, the milling head 1 may also be adapted to transfer the tool 15 longitudinally, thereby enabling the tool 15 to pass over the bottom surface of the door closer housing 14 to complete the bottom milling. As another configuration, the clamping seat 2 may also be adapted to be mounted on the transfer table 13. For example, the transfer table 13 may be moved closer to or away from the milling head 1 by the transfer of a linear module or other ejection mechanism. In this case, the relative movement of the tool 15 and the door closer housing 14 will enable the tool 15 to complete the bottom milling of the door closer housing 14.

[0026] In addition, an air nozzle 9 is provided on the side wall of the milling head 1 housing. For example, the air nozzle 9 can be connected to the air pumping system (not shown). After a bottom milling operation is completed, the door closer housing 14 is removed. At this time, the air pumping system can pump gas into the air nozzle 9, causing the air nozzle 9 to spray airflow towards the clamping seat 2. This blows away the cutting chips adhering to the clamping seat 2, making it less likely to reduce the accuracy of the bottom milling operation.

[0027] In some embodiments, a bladder 10 communicating with the nozzle 9 can be provided on the side wall of the milling head 1 housing. For example, when the clamping post 4 is in the first position, the operator can remove the door closer housing 14 after the bottom has been milled, and then the clamping post 4 is pushed upward to the third position. During this process, the clamping post 4 will squeeze the bladder 10, causing the gas in the bladder 10 to be pumped out from the nozzle 9 to complete the purging of the bearing end face 3.

[0028] In a preferred embodiment, the nozzle 9 is adapted to be hinged to the side wall of the milling head 1 housing, and a drive tooth 11 is provided on the rotating shaft of the nozzle 9. A drive rod 12 is also provided on the clamping post 4, and a toothed structure (not shown) is constructed on the side wall of the drive rod 12 facing the drive tooth 11. During the process of the clamping post 4 being pushed out from the first position to the third position, the drive rod 12 not only compresses the airbag, but the toothed structure also meshes with the drive tooth 11, thereby causing the nozzle 9 to swing. This allows the ejected airflow to complete the sweeping along the bearing end face 3, further improving the chip removal effect. The meshing transmission method between the toothed structure and the drive tooth 11 can be found in the gear and rack mechanism of the prior art.

[0029] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A door closer housing bottom milling machine, comprising a milling head (1) and a clamping seat (2) arranged opposite to each other, characterized in that: The clamping seat (2) includes a bearing end face (3), and a clamping post (4) can be ejected from the clamping seat (2). The clamping post (4) is used to insert into the side connection hole of the door closer housing, and the clamping post (4) is adapted to be ejected to a first position and a second position. In the second position, the clamping post (4) drives the door closer housing to abut against the bearing end face (3).

2. The door closer housing bottom milling machine according to claim 1, characterized in that: A limiting post (5) is provided on the bearing end face (3). In the second position, the limiting post (5) is inserted into the screw hole of the door closer housing.

3. The door closer housing bottom milling machine according to claim 1, characterized in that: A cylinder is provided on the clamping seat (2), and the clamping column (4) is provided on the ejector shaft of the cylinder.

4. The door closer housing bottom milling machine according to claim 1, characterized in that: The bearing end face (3) includes two opposing bearing portions (6), and an avoidance area (7) is formed between the two bearing portions (6) to allow the main body of the door closer housing to engage.

5. The door closer housing bottom milling machine according to claim 4, characterized in that: The clamping seat (2) has two opposing support columns (8), and the end face of the support column (8) constitutes the support part (6).

6. The door closer housing bottom milling machine according to any one of claims 1-5, characterized in that: The clamping seat (2) is disposed on the transfer table (13), which is adapted to move the clamping seat (2) closer to or further away from the milling head (1).

7. The door closer housing bottom milling machine according to claim 6, characterized in that: The milling head (1) has an air nozzle (9) on its housing sidewall, and the air nozzle (9) is adapted to spray airflow toward one side of the clamping seat (2).

8. The door closer housing bottom milling machine according to claim 7, characterized in that: The jet nozzle (9) is connected to a pumping system.

9. The door closer housing bottom milling machine according to claim 7, characterized in that: A bladder (10) is provided on the side wall of the casing of the milling head (1). The jet nozzle (9) is connected to the bladder (10) via a pipe. The clamping column (4) is also adapted to be able to be pushed out to a third position. During the process of entering the third position, the clamping column (4) squeezes the bladder (10).

10. The door closer housing bottom milling machine according to claim 9, characterized in that: The jet nozzle (9) is hinged to the side wall of the housing of the milling head (1). A drive tooth (11) is provided on the rotating shaft of the jet nozzle (9). A drive rod (12) is provided on the clamping column (4). A toothed structure is constructed on the side wall of the drive rod (12). When the clamping post (4) is pushed out from the first position to the third position, the toothed structure engages with the drive tooth (11), thereby driving the jet nozzle (9) to swing.

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