Automatic door connecting structure of machine tool

Abstract

The utility model provides an automatic door connecting structure of a machine tool, and belongs to the technical field of machine tool equipment. The problem that the reliability of the protection function is reduced when an existing automatic door works for a long time is solved. The machine tool automatic door connecting structure comprises a connecting base fixedly connected to an automatic door, a linear guide rail and an electric cylinder, the linear guide rail and the electric cylinder are fixedly connected to a machine tool rack and arranged in parallel, the automatic door is installed on the linear guide rail and can move along the linear guide rail, and a sliding table of the electric cylinder is fixedly connected with a fixing base corresponding to the connecting base. A protruding inserting block is arranged on the side face, facing the connecting base, of the fixing base, an inserting groove is formed in the side face, facing the fixing base, of the connecting base, the inserting block is embedded into the inserting groove, and a fit clearance is formed between the surface of the inserting block and the groove wall face of the inserting groove. The automatic door connecting structure of the machine tool improves the reliability of the protection function when the automatic door works for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool equipment and relates to an automatic door connection structure for a machine tool. Background Art

[0002] With the development of machine tools, automation integration has become a major trend in the machine tool industry. With the improvement of automation, the safety and reliability of mechanical automation is the basic condition for automated processing, and the automatic opening and closing of safety protection doors is one of the most common automated production conditions.

[0003] Chinese patent documents publicly proposed a machine tool automatic door [Announcement No.: CN

[0004] 209175403U], installed on the frame of the machine tool, and a front door opening is opened on the front face of the frame. The automatic door of the machine tool includes a front door, which is installed on the front face of the frame and can cover the front door opening. A linear drive is fixedly installed on the top face of the frame at the front edge, and the linear drive is an electric cylinder, and a fixing plate is fixed on the slide of the electric cylinder. A front fixing seat is fixedly installed on the top of the front door, and the front fixing seat is fixedly connected to the fixing plate by bolts. A linear guide groove is provided on the front face of the frame below the front door opening, and the front door is installed in the linear guide groove and can move left and right along the linear guide groove. A linear guide rail corresponding to the linear guide groove is provided on the front face of the frame above the front door opening, and the upper end of the front door is installed on the linear guide rail.

[0005] The electric cylinder can drive the front door to move left and right along the linear guide rail. During installation, the electric cylinder needs to be set parallel to the linear guide rail. However, due to the existence of part processing errors and installation errors, there is actually a parallel error between the electric cylinder and the linear guide rail. The parallel error causes the movement direction of the front door to be non-parallel with the setting direction of the electric cylinder, which causes internal stress in the bolts used to connect the front fixed seat and the fixed plate. Long-term internal stress can easily cause the bolts to break. That is, after the automatic door has been working for a long time, the connection between the front door and the electric cylinder is prone to disconnection, causing the automatic door to be unable to open and close normally during the automated processing process, especially when it cannot be closed automatically normally, which affects the protection function of the automatic door and reduces the reliability of the protection function of the automatic door. Utility Model Content

[0006] The purpose of the utility model is to solve the above problems existing in the prior art and propose a connection structure for an automatic door of a machine tool, thereby solving the technical problem that the reliability of the protective function of the existing automatic door decreases when the automatic door works for a long time.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A machine tool automatic door connection structure includes a connection seat fixedly connected to the automatic door and a linear guide rail and an electric cylinder fixedly connected to the machine tool frame and arranged in parallel. The automatic door is installed on the linear guide rail and can move along the linear guide rail. The slide of the electric cylinder is fixedly connected to a fixed seat arranged corresponding to the connection seat. It is characterized in that the fixed seat has a protruding plug block on the side facing the connection seat, and the connection seat has a slot on the side facing the fixed seat. The plug block is embedded in the slot, and there is a matching gap between the surface of the plug block and the groove wall of the slot.

[0009] The connection seat and the fixed seat are connected through the insertion of the slot and the plug-in block to transmit motion and force. When the electric cylinder is working, the fixed seat drives the movement of the fixed seat, and the fixed seat drives the connection seat and the automatic door to move along the linear guide through the plug-in block, so as to realize the automatic opening and closing of the automatic door. Since there is a matching gap between the surface of the plug-in block and the groove wall of the slot, the connection between the connection seat and the fixed seat becomes a flexible connection, avoiding the interference stress caused by the parallel error of the installation between the electric cylinder and the linear guide, so that the connection seat and the fixed seat can maintain connection even when working for a long time, which improves the reliability of the protective function of the automatic door when working for a long time.

[0010] In the above-mentioned machine tool automatic door connection structure, the slot runs through the front and back of the connection seat. This can reduce the possibility that the slot wall of the slot will interfere with the plug block during installation and cause internal stress in the plug block, so that the structure of the plug block remains stable during long-term operation, which is conducive to ensuring the reliability of the protective function of the automatic door during long-term operation. In addition, after such an arrangement, the plug block can be embedded into the slot from the front of the connection seat during assembly, making it convenient to assemble the connection seat and the fixing seat.

[0011] In the above-mentioned machine tool automatic door connection structure, both sides of the slot are plane and parallel, and both sides of the slot are perpendicular to the moving direction of the automatic door. This arrangement not only facilitates the insertion of the plug into the slot from the front of the connecting seat, but also avoids the generation of force components other than the moving direction of the automatic door when the fixed seat drives the connecting seat, so that the driving force is used to drive the automatic door to move, and the automatic door opens and closes smoothly.

[0012] In the above-mentioned machine tool automatic door connection structure, the side surfaces of the plug block opposite to the two side surfaces of the slot are both plane and parallel, the width of the plug block in the moving direction of the automatic door is smaller than the distance between the two side surfaces of the slot, and there is a spacing distance between the end surface of the plug block facing the bottom surface of the slot and the bottom surface of the slot. In this way, the existence of the matching clearance can be ensured to eliminate the installation interference problem caused by the parallel error of the linear guide rail and the electric cylinder, which is conducive to ensuring the reliability of the protective function of the automatic door when it works for a long time.

[0013] In the above-mentioned machine tool automatic door connection structure, a plate is fixedly connected to the frame, and the electric cylinder and the linear guide are both fixedly connected to the plate. The electric cylinder and the linear guide are installed on the same plate, which can reduce the installation error between the electric cylinder and the linear guide, and is conducive to improving the reliability of the automatic door.

[0014] A machine tool automatic door connection structure includes a connecting seat fixedly connected to the automatic door and a linear guide and an electric cylinder fixedly connected to the machine tool frame and arranged in parallel. The automatic door is installed on the linear guide and can move along the linear guide. The slide of the electric cylinder is fixedly connected to a fixed seat arranged corresponding to the connecting seat. It is characterized in that the connecting seat has a protruding plug block on the side facing the fixed seat, and the fixed seat has a slot on the side facing the connecting seat. The plug block is embedded in the slot, and there is a matching gap between the surface of the plug block and the groove wall of the slot.

[0015] The connection seat and the fixed seat are connected through the plug-in fit of the slot and the plug-in block to transmit motion and force. When the electric cylinder is working, the fixed seat drives the movement of the fixed seat, and the fixed seat drives the connection seat and the automatic door to move along the linear guide through the slot wall surface of the slot, so as to realize the automatic opening and closing of the automatic door. Since there is a matching gap between the surface of the plug-in block and the slot wall surface of the slot, the connection between the connection seat and the fixed seat becomes a flexible connection, avoiding the interference stress caused by the installation parallel error between the electric cylinder and the linear guide rail, so that the connection seat and the fixed seat can maintain connection even if they work for a long time, which improves the reliability of the protection function of the automatic door when it works for a long time.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The connecting seat and the fixed seat are connected by the insertion of the slot and the plug-in block, and there is a matching gap between the surface of the plug-in block and the groove wall of the slot, so that the connection between the connecting seat and the fixed seat is a flexible connection, avoiding the interference stress caused by the parallel error between the electric cylinder and the linear guide rail, so that the connecting seat and the fixed seat can remain connected even when working for a long time, thereby improving the reliability of the protective function of the automatic door when working for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the first embodiment of the automatic door connection structure of this machine tool when it is set on the machine tool.

[0019] Figure 2 It is a partial enlarged view of the left automatic door connection structure when looking down at the machine tool in Example 1.

[0020] In the figure, 1, frame; 2, automatic door; 3, linear guide; 4, electric cylinder; 5, fixed seat; 5a, plug-in block; 6, connecting seat; 6a, slot; 7, matching gap; 8, plate; 9, travel switch; 10, trigger seat. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] Embodiment 1

[0023] like Figure 1 As shown, the machine tool comprises a frame 1, a door opening is provided on the frame 1, two automatic doors 2 are arranged at the door opening, and the two automatic doors 2 are arranged in the left and right directions and installed symmetrically. A machine tool automatic door connection structure is provided between each automatic door 2 and the machine tool.

[0024] like Figure 2 As shown, taking the left automatic door 2 as an example, the machine tool automatic door connection structure includes a connection seat 6 fixedly connected to the automatic door 2, and a linear guide 3 and an electric cylinder 4 fixedly connected to the machine tool frame 1 and arranged in parallel. A flat plate 8 is fixedly connected to the top surface of the machine tool frame 1, and the electric cylinder 4 and the linear guide 3 are both fixedly connected to the upper surface of the flat plate 8, and the electric cylinder 4 is located behind the linear guide 3. The length of the flat plate 8 is set in the left-right direction, and the length of the linear guide 3 and the length of the electric cylinder 4 are both set in the left-right direction. The automatic door 2 is installed on the linear guide 3 and can move along the linear guide 3. Specifically, a plurality of sliders are fixedly connected to the back of the automatic door 2, and the sliders are mounted on the linear guide 3 and can slide along the linear guide 3. The slide of the electric cylinder 4 is arranged upward, and a fixed seat 5 corresponding to the connection seat 6 is fixedly connected to the upper surface of the slide of the electric cylinder 4, and the fixed seat 5 is located behind the connection seat 6. The fixing seat 5 has a protruding plug block 5a on the side facing the connecting seat 6, and the connecting seat 6 is provided with a slot 6a on the side facing the fixing seat 5. The plug block 5a is embedded in the slot 6a, and there is a matching gap 7 between the surface of the plug block 5a and the slot wall of the slot 6a. The slot 6a runs through the front and back of the connecting seat 6, that is, the slot 6a runs through the upper surface and the lower surface of the connecting seat 6. The left side and the right side of the slot 6a are both planes and are arranged in parallel, and the left side and the right side of the slot 6a are also perpendicular to the moving direction of the automatic door 2. The left side and the right side of the plug block 5a are both planes and are arranged in parallel. The width of the plug block 5a in the moving direction of the automatic door 2 is smaller than the distance between the left side and the right side of the slot 6a, and there is a spacing distance between the front end surface of the plug block 5a and the bottom surface of the slot 6a. A transition fillet is provided between the left side of the plug block 5a and the front end of the plug block 5a, and between the right side of the plug block 5a and the front end of the plug block 5a. A transition fillet is provided between the left side of the slot 6a and the rear side of the connecting seat 6, and between the right side of the slot 6a and the rear side of the connecting seat 6, so as to reduce installation interference. A travel switch 9 is also fixedly connected to the left side of the electric cylinder 4 on the top surface of the frame 1, and a trigger seat 10 corresponding to the travel switch 9 is also fixedly connected to the automatic door 2. When the trigger seat 10 touches the travel switch 9, the electric cylinder 4 stops moving.

[0025] The connection seat 6 and the fixed seat 5 are connected by the insertion of the slot 6a and the plug block 5a to transmit motion and force. When the electric cylinder 4 is working, the fixed seat 5 drives the left and right movement, and the fixed seat 5 drives the connection seat 6 and the automatic door 2 to move left and right along the linear guide 3 through the plug block 5a, so as to realize the automatic opening and closing of the automatic door 2. Since there is a matching gap 7 between the surface of the plug block 5a and the groove wall of the slot 6a, the connection between the connection seat 6 and the fixed seat 5 becomes a flexible connection, avoiding the interference stress caused by the installation parallel error between the electric cylinder 4 and the linear guide 3, so that the connection seat 6 and the fixed seat 5 can remain connected even if they work for a long time, thereby improving the reliability of the protective function of the automatic door 2 when it works for a long time.

[0026] Embodiment 2

[0027] The positions of the plug block 5a and the slot 6a are swapped, and the other structures are the same as those of the first embodiment. Specifically, the side of the connecting seat 6 facing the fixed seat 5 has a protruding plug block 5a, and the side of the fixed seat 5 facing the connecting seat 6 is provided with a slot 6a, the plug block 5a is embedded in the slot 6a, and there is a matching gap 7 between the surface of the plug block 5a and the groove wall of the slot 6a.

[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A machine tool automatic door connection structure, comprising a connection seat (6) fixedly connected to an automatic door (2) and a linear guide rail (3) and an electric cylinder (4) fixedly connected to a machine tool frame (1) and arranged in parallel, wherein the automatic door (2) is mounted on the linear guide rail (3) and can move along the linear guide rail (3), and a fixed seat (5) corresponding to the connection seat (6) is fixedly connected to the slide table of the electric cylinder (4), characterized in that: The fixing seat (5) has a protruding plug-in block (5a) on the side facing the connecting seat (6), and the connecting seat (6) has a slot (6a) on the side facing the fixing seat (5). The plug-in block (5a) is embedded in the slot (6a), and a matching gap (7) is provided between the surface of the plug-in block (5a) and the slot wall surface of the slot (6a).

2. The machine tool automatic door connection structure according to claim 1, characterized in that: The slot (6a) runs through the front and back sides of the connecting seat (6).

3. The machine tool automatic door connection structure according to claim 2, characterized in that: Both side surfaces of the slot (6a) are planes and are arranged in parallel. The two side surfaces of the slot (6a) are also perpendicular to the moving direction of the automatic door (2).

4. The machine tool automatic door connection structure according to claim 3, characterized in that: The side surfaces of the insert block (5a) opposite to the two side surfaces of the slot (6a) are both plane and arranged in parallel; the width of the insert block (5a) in the moving direction of the automatic door (2) is smaller than the distance between the two side surfaces of the slot (6a); and there is a spacing distance between the end surface of the insert block (5a) facing the bottom surface of the slot (6a) and the bottom surface of the slot (6a).

5. The automatic door connection structure for machine tools according to any one of claims 1 to 4, characterized in that: A flat plate (8) is fixedly connected to the frame (1), and the electric cylinder (4) and the linear guide rail (3) are both fixedly connected to the flat plate (8).

6. A machine tool automatic door connection structure, comprising a connection seat (6) fixedly connected to the automatic door (2) and a linear guide rail (3) and an electric cylinder (4) fixedly connected to the machine tool frame (1) and arranged in parallel, wherein the automatic door (2) is mounted on the linear guide rail (3) and can move along the linear guide rail (3), and a fixed seat (5) corresponding to the connection seat (6) is fixedly connected to the slide of the electric cylinder (4), characterized in that: The connecting seat (6) has a protruding plug-in block (5a) on the side facing the fixing seat (5), and the fixing seat (5) has a slot (6a) on the side facing the connecting seat (6). The plug-in block (5a) is embedded in the slot (6a), and a matching gap (7) is provided between the surface of the plug-in block (5a) and the slot wall surface of the slot (6a).

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