Door frame hinge groove machining machine tool

Abstract

The utility model discloses a door frame hinge groove processing machine tool, and relates to the technical field of door frame processing equipment, the door frame hinge groove processing machine tool comprises an upper clamping mechanism, the upper clamping mechanism comprises a telescopic rod, a wheel carrier, a rotating shaft, a first clamping wheel, a second clamping wheel and a fixing assembly, the output end of the telescopic rod is provided with the wheel carrier, and the wheel carrier is rotatably connected with the rotating shaft; a first clamping wheel and a second clamping wheel are fixedly arranged on the rotating shaft, the wheel diameter of the first clamping wheel is smaller than that of the second clamping wheel, the axis of the first clamping wheel coincides with the axis of the rotating shaft, the second clamping wheel is eccentrically arranged on the rotating shaft, and a fixing assembly is arranged on the side portion of the wheel frame and used for fixing the rotating shaft. When the upper clamping mechanism is used for pressing the door frame, the upper clamping mechanism can adapt to the height difference between the first step face and the second step face of the door frame of different specifications, and use flexibility can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of door frame processing equipment, specifically to a door frame hinge groove processing machine tool. Background Technology

[0002] The door frame is fixedly installed on the wall. On the one hand, the door frame protects the wall, preventing the door from directly contacting the wall, reducing friction and wear, and extending the service life of the wall; on the other hand, the door frame provides stable support for the door, ensuring that the door can open and close normally.

[0003] See Figure 1 and Figure 2 The door frame 1 is provided with a first step surface 11 and a second step surface 12. The first step surface 11 and the second step surface 12 are not on the same plane. A connecting surface 13 is provided between the first step surface 11 and the second step surface 12. The width of the connecting surface 13 is adapted to the thickness of the door leaf 2. Both the connecting surface 13 of the door frame 1 and the side of the door leaf 2 facing the connecting surface 13 are provided with hinge grooves 131. The hinge grooves 131 are used to install hinges 3.

[0004] Machine tools are required when machining hinge slots in door frames. For example, patent CN211539639U discloses an "Automatic Machining Device for Door Frame Hinge Slots." This device includes a lower hinge slot machining unit and an upper hinge slot machining unit located on the side of a machining table. An upper clamping cylinder is provided on the side of the machining table, connected to an upper clamping plate. When the door frame to be machined is located at the top of the machining table, the upper clamping cylinder drives the upper clamping plate to press against the door frame, improving the stability of the door frame during machining. In the above device, the upper clamping cylinder and the upper clamping plate constitute an upper clamping mechanism for pressing the door frame.

[0005] Because door leaf specifications and thicknesses vary, the width of the connecting surface of the door frame used to match the door leaf thickness also varies, resulting in different height differences between the first and second step surfaces of the door frame.

[0006] When using a clamping mechanism to press a door frame, how to adapt to the height difference between the first and second step surfaces of door frames of different specifications in order to improve the flexibility of use is a technical problem that needs to be solved. Utility Model Content

[0007] To address the aforementioned shortcomings of existing technologies, this invention proposes a door frame hinge groove processing machine tool. When using the clamping mechanism to press the door frame, this invention can adapt to the height difference between the first and second step surfaces of door frames of different specifications, thereby improving the flexibility of use.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A door frame hinge groove processing machine tool includes an upper clamping mechanism. The upper clamping mechanism includes a telescopic rod, a wheel frame, a rotating shaft, a first clamping wheel, a second clamping wheel, and a fixing assembly. The output end of the telescopic rod is provided with a wheel frame, and a rotating shaft is rotatably connected to the wheel frame. The first clamping wheel and the second clamping wheel are fixedly provided on the rotating shaft. The diameter of the first clamping wheel is smaller than that of the second clamping wheel. The axis of the first clamping wheel coincides with the axis of the rotating shaft. The second clamping wheel is eccentrically set on the rotating shaft. A fixing assembly is provided on the side of the wheel frame for fixing the rotating shaft.

[0010] Furthermore, the side of the rotating shaft is provided with a sliding groove, and the side of the wheel frame is provided with a plurality of positioning grooves evenly distributed along the circumference of the rotating shaft. The fixing component includes a positioning seat and an elastic element. Both the positioning seat and the elastic element are disposed in the sliding groove. The positioning seat slides in cooperation with the sliding groove along the axial direction of the rotating shaft, and the elastic element is used to push the positioning seat into the positioning groove.

[0011] Furthermore, the positioning seat includes a positioning part and a sliding part, the positioning part is inserted into the positioning groove, and the top surface of the sliding part is provided with anti-slip texture.

[0012] Furthermore, one end of the slide groove extends to the end of the rotating shaft, and the end of the rotating shaft is detachably connected to a blocking member. A guide rod is provided inside the slide groove, and the positioning seat is provided with a guide hole. The guide rod slides in conjunction with the guide hole. The elastic member is a spring, which is sleeved on the guide rod. One end of the spring abuts against the positioning seat, and the other end of the spring abuts against the blocking member.

[0013] Furthermore, the blocking component is a bolt, and the end of the rotating shaft is provided with a threaded hole, with the bolt threaded into the threaded hole.

[0014] The beneficial effects of this utility model are:

[0015] 1. In this invention, because the first clamping wheel's axis coincides with the axis of the rotating shaft, and the second clamping wheel is eccentrically positioned relative to the rotating shaft, the distances between the wheel surfaces of the first and second clamping wheels are different at various points. The distance between the wheel surface of the second clamping wheel at its distal end and the wheel surface of the first clamping wheel is the largest, while the distance between the wheel surface of the second clamping wheel at its proximal end and the wheel surface of the first clamping wheel is the smallest. The distances between the wheel surfaces at other positions fall between the largest and smallest. By rotating the rotating shaft, the first and second clamping wheels rotate together, allowing the wheel surface distance that matches the height difference between the first and second step surfaces to reach its lowest position. This enables the first and second clamping wheels to effectively press against the first and second step surfaces of the door frame, accommodating the height differences between the first and second step surfaces of door frames of different specifications, thus improving usability.

[0016] 2. By overcoming the elastic force of the elastic element to push the positioning seat, the positioning seat can be disengaged from the positioning groove, thus releasing the fixed state of the rotating shaft; when the positioning seat is released, it is pushed into the positioning groove by the elastic element, thus fixing the current state of the rotating shaft. Therefore, the fixing and unfixing operations of the fixing component on the rotating shaft are simple, which helps to improve adjustment efficiency.

[0017] 3. The anti-slip texture reduces the risk of slippage when workers push the positioning seat, and improves the reliability of the positioning seat's movement.

[0018] 4. By setting bolts, the end of the slide can be opened after the bolts are removed, so as to replace the spring sleeved on the guide rod, which is convenient for replacement and maintenance. Attached Figure Description

[0019] Figure 1 This is a diagram illustrating the fit between the door frame and the door leaf;

[0020] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 A three-dimensional machine tool for machining hinge grooves in door frames Figure 1 ;

[0022] Figure 4 A three-dimensional machine tool for machining hinge grooves in door frames Figure 2 ;

[0023] Figure 5 This is a front view of a door frame hinge groove machining machine tool;

[0024] Figure 6 This is a 3D view of the upper clamping mechanism;

[0025] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;

[0026] Figure 8 This is a top view of the upper clamping mechanism;

[0027] Figure 9 yes Figure 8 Sectional view at CC;

[0028] Figure 10 yes Figure 9 A magnified view of a section at point D;

[0029] Figure 11 This is the front view of the upper clamping mechanism;

[0030] Figure 12 yes Figure 11 Sectional view at EE;

[0031] Figure 13 yes Figure 12 A magnified view of a section at point F in the middle;

[0032] Figure 14 This is a schematic diagram of the use of the upper clamping mechanism.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Door frame, 11-First step surface, 12-Second step surface, 13-Connecting surface, 131-Hinge groove,

[0035] 2-Door leaf,

[0036] 3-Hinges,

[0037] 4-Machining table, 41-Slide rail, 42-Rack and pinion,

[0038] 5a - Upper hinge slot processing unit, 5b - Lower hinge slot processing unit, 51 - Longitudinal moving seat, 511 - Drive motor, 512 - Support.

[0039] 6-Upper clamping mechanism,

[0040] 61-Cylinder,

[0041] 62-Wheel frame, 621-Positioning slot,

[0042] 63-Spindle, 631-Slide groove, 632-Screw hole

[0043] 64-First clamping wheel,

[0044] 65 - Second clamping wheel,

[0045] 66-Guide rod,

[0046] 67-Positioning seat, 671-Positioning part, 672-Sliding part, 6721-Anti-slip texture, 673-Guide hole,

[0047] 68-Spring,

[0048] 69- Bolt. Detailed Implementation

[0049] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] Example:

[0051] See Figures 3 to 5 A door frame hinge groove processing machine tool includes a processing table 4, an upper hinge groove processing unit 5a, a lower hinge groove processing unit 5b, and an upper clamping mechanism 6.

[0052] See Figures 3 to 5 Both the upper hinge slot processing unit 5a and the lower hinge slot processing unit 5b include a longitudinal moving seat 51. A drive motor 511 is fixedly mounted on the longitudinal moving seat 51, and a gear is fixedly mounted on the output end of the drive motor 511. A slide rail 41 and a rack 42 are fixedly mounted on the side of the processing table 4. The longitudinal moving seat 51 is slidably engaged with the slide rail 41, and the gear meshes with the rack 42. When the drive motor 511 is driven, the longitudinal moving seat 51 can be driven to move longitudinally along the processing table 4 through the engagement of the gear and rack 42.

[0053] See Figures 3 to 5 A bracket 512 is fixedly installed on the longitudinal moving seat 51, and an upper clamping mechanism 6 is installed on the bracket 512.

[0054] See Figures 6 to 14 The upper clamping mechanism 6 includes a telescopic rod, a wheel frame 62, a rotating shaft 63, a first clamping wheel 64, a second clamping wheel 65, and a fixing assembly.

[0055] In this embodiment, the telescopic rod can be a pneumatic cylinder 61. Alternatively, a hydraulic cylinder or an electric actuator can also be used as the telescopic rod. See also Figure 5 Cylinder 61 is fixedly mounted on bracket 512, with the output end of cylinder 61 facing downwards.

[0056] See Figure 11 A wheel frame 62 is fixedly mounted on the output end of cylinder 61. A rotating shaft 63 is rotatably connected to the wheel frame 62. A first clamping wheel 64 and a second clamping wheel 65 are fixedly mounted on the rotating shaft 63, and the rotating shaft 63 can drive the first clamping wheel 64 and the second clamping wheel 65 to rotate together.

[0057] See Figure 13 The diameter of the first clamping wheel 64 is smaller than that of the second clamping wheel 65. The axis of the first clamping wheel 64 coincides with the axis of the rotating shaft 63. The second clamping wheel 65 is eccentrically mounted on the rotating shaft 63, which causes the distance between the wheel surface of the second clamping wheel 65 and the wheel surface of the first clamping wheel 64 to vary. The distance L1 between the wheel surface of the second clamping wheel 65 at the distal end and the wheel surface of the first clamping wheel 64 is the largest, and the distance L2 between the wheel surface of the second clamping wheel 65 at the proximal end and the wheel surface of the first clamping wheel 64 is the smallest.

[0058] See Figure 7 and Figure 10 The right side of the wheel frame 62 is provided with a fixing component, which is used to fix the rotating shaft 63.

[0059] See Figure 7 and Figure 10 The fixing components include guide rod 66, positioning seat 67, elastic element, and blocking element.

[0060] See Figure 7 and Figure 10 The right side of the rotating shaft 63 is provided with a sliding groove 631, the right end of which extends through to the right end face of the rotating shaft 63. The right side of the wheel frame 62 is provided with four positioning grooves 621 evenly distributed around the circumference of the rotating shaft 63.

[0061] See Figure 7 and Figure 10 The guide rod 66 is located inside the slide groove 631. The left end of the guide rod 66 is welded and fixed to the left side wall of the slide groove 631. The guide rod 66 extends axially along the rotating shaft 63.

[0062] See Figure 7 and Figure 10 The positioning seat 67 is located in the slide groove 631. The positioning seat 67 includes a positioning part 671 and a sliding part 672 with an integral structure. The positioning part 671 is inserted into the positioning groove 621. The top surface of the sliding part 672 is provided with anti-slip texture 6721. The positioning seat 67 is provided with a guide hole 673. The guide rod 66 is slidably engaged with the guide hole 673.

[0063] See Figure 7 and Figure 10 The blocking component is made of bolt 69, and the right end of the rotating shaft 63 is provided with a screw hole 632, and the bolt 69 is threadedly engaged with the screw hole 632.

[0064] See Figure 7 and Figure 10 The elastic element is a spring 68, which is sleeved on the guide rod 66. The left end of the spring 68 abuts against the positioning seat 67, and the right end of the spring 68 abuts against the bolt 69. The elastic force of the spring 68 is used to push the positioning part 671 of the positioning seat 67 into the positioning groove 621.

[0065] The working principle of this embodiment is as follows:

[0066] (1) Scenario 1: When machining the hinge groove 131 on the door frame 1, the upper clamping mechanism 6 needs to be used to press the door frame 1 onto the machining table 4. The action of the upper clamping mechanism 6 pressing the door frame 1 is as follows: the output end of the cylinder 61 in the upper clamping mechanism 6 extends downward, pushing the wheel frame 62 to move downward. The wheel frame 62 drives the rotating shaft 63 to move downward. The rotating shaft 63 drives the first clamping wheel 64 and the second clamping wheel 65 to move downward together. See Figure 14The first clamping wheel 64 presses on the first step surface 11 of the door frame 1, and the second clamping wheel 65 presses on the second step surface 12 of the door frame 1, so that both the first step surface 11 and the second step surface 12 of the door frame 1 are pressed down, which helps to improve the stability of the door frame 1.

[0067] (2) Scenario 2: For door frames 1 of different specifications, the height difference between the first step surface 11 and the second step surface 12 is different. It is necessary to match the wheel surface of the first clamping wheel 64 and the wheel surface of the second clamping wheel 65 with the height difference between the first step surface 11 and the second step surface 12.

[0068] Since the first clamping wheel 64 coincides with the axis of the rotating shaft 63, and the second clamping wheel 65 is eccentrically set with respect to the rotating shaft 63, the distance between the wheel surfaces of the first clamping wheel 64 and the second clamping wheel 65 is different at various points. The distance L1 between the wheel surface of the second clamping wheel 65 at its distal end and the wheel surface of the first clamping wheel 64 is the largest, and the distance L2 between the wheel surface of the second clamping wheel 65 at its proximal end and the wheel surface of the first clamping wheel 64 is the smallest. The distance between the wheel surfaces at other positions is between L1 and L2.

[0069] By rotating the shaft 63, the shaft 63 drives the first clamping wheel 64 and the second clamping wheel 65 to rotate together, so that the wheel surface spacing that matches the height difference between the first step surface 11 and the second step surface 12 is rotated to the lowest position, so that the first clamping wheel 64 and the second clamping wheel 65 can effectively press the first step surface 11 and the second step surface 12 of the door frame 1.

[0070] For example, when the spacing L1 is rotated to the lowest position, the spacing L1 can adapt to the situation where the height difference between the first step surface 11 and the second step surface 12 is the largest. That is, at this time, the first clamping wheel 64 and the second clamping wheel 65 can press on the door frame 1 where the height difference between the first step surface 11 and the second step surface 12 is the largest.

[0071] For example, when the spacing L2 is rotated to the lowest position, the spacing L2 can adapt to the situation where the height difference between the first step surface 11 and the second step surface 12 is the smallest. That is, at this time, the first clamping wheel 64 and the second clamping wheel 65 can press on the door frame 1 where the height difference between the first step surface 11 and the second step surface 12 is the smallest.

[0072] Before rotating the shaft 63, the worker needs to push the positioning seat 67 away from the positioning groove 621, causing the positioning seat 67 to disengage from the positioning groove 621. During this process, the spring 68 is compressed. After the positioning seat 67 disengages from the positioning groove 621, the shaft 63 can rotate. The anti-slip texture 6721 on the positioning seat 67 reduces the risk of slippage when the worker pushes the positioning seat 67, and improves the reliability of the operation of pushing the positioning seat 67.

[0073] After adjusting the rotating shaft 63, the worker needs to loosen the positioning seat 67. The positioning seat 67 is pushed into the positioning groove 621 by the elastic force of the spring 68. At this time, the rotating shaft 63 cannot rotate and can maintain the rotating shaft 63 in its current state.

[0074] (3) Scenario 3: When it is necessary to replace spring 68, the worker first unscrews bolt 69, at which point the right end of slide 631 is opened; then, the worker removes spring 68 from the right end of guide rod 66 and puts new spring 68 on guide rod 66; finally, the worker screws bolt 69 back onto the right end of shaft 63, and bolt 69 blocks the right end of slide 631 again, preventing new spring 68 from slipping off the right end of guide rod 66, thus completing the replacement of spring 68.

[0075] Based on the working principle described above in this embodiment, it can be seen that this embodiment has the following effects:

[0076] First, in this embodiment, since the axis of the first clamping wheel 64 coincides with that of the rotating shaft 63, and the second clamping wheel 65 is eccentrically positioned relative to the rotating shaft 63, the distances between the wheel surfaces of the first clamping wheel 64 and the second clamping wheel 65 are different at various points. The distance L1 between the wheel surface of the second clamping wheel 65 at its distal end and the wheel surface of the first clamping wheel 64 is the largest, while the distance L2 between the wheel surface of the second clamping wheel 65 at its proximal end and the wheel surface of the first clamping wheel 64 is the smallest. The wheel surface distances at other positions are between L1 and L2. By rotating the rotating shaft 63, the rotating shaft 63 drives the first clamping wheel 64 and the second clamping wheel 65 to rotate together, allowing the wheel surface distance that matches the height difference between the first step surface 11 and the second step surface 12 to be rotated to the lowest position. This allows the first clamping wheel 64 and the second clamping wheel 65 to effectively press against the first step surface 11 and the second step surface 12 of the door frame 1, adapting to the height difference between the first step surface 11 and the second step surface 12 of door frames of different specifications, which is beneficial for improving the flexibility of use.

[0077] Secondly, by overcoming the elastic force of the spring 68 to push the positioning seat 67, the positioning seat 67 can be disengaged from the positioning groove 621, thus releasing the fixed state of the rotating shaft 63; when the positioning seat 67 is released, it is pushed into the positioning groove 621 by the spring 68, thus fixing the current state of the rotating shaft 63. Therefore, both fixing and unfixing operations of the fixing assembly on the rotating shaft 63 are simple, which helps to improve adjustment efficiency.

[0078] Third, by setting bolt 69, the end of the slide groove 631 can be opened after the bolt 69 is removed, so as to replace the spring 68 sleeved on the guide rod 66, which facilitates replacement and maintenance.

[0079] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A door frame hinge slot processing machine tool comprising an upper clamping mechanism, characterized in that, The upper clamping mechanism comprises a telescopic rod, a wheel frame, a rotating shaft, a first clamping wheel, a second clamping wheel and a fixing assembly, the output end of the telescopic rod is provided with the wheel frame, the rotating shaft is rotationally connected to the wheel frame, the first clamping wheel and the second clamping wheel are fixedly arranged on the rotating shaft, the wheel diameter of the first clamping wheel is smaller than that of the second clamping wheel, the axis of the first clamping wheel coincides with that of the rotating shaft, the second clamping wheel is eccentrically arranged on the rotating shaft, and the side of the wheel frame is provided with the fixing assembly.

2. The door frame hinge slot processing machine tool according to claim 1, characterized in that, The side of the rotating shaft is provided with a sliding groove, the side of the wheel frame is provided with a plurality of positioning grooves which are uniformly distributed along the circumference of the rotating shaft, the fixing assembly comprises a positioning seat and an elastic piece, the positioning seat and the elastic piece are arranged in the sliding groove, the positioning seat is in sliding fit with the sliding groove along the axial direction of the rotating shaft, and the elastic piece is used for pushing the positioning seat to be inserted into the positioning groove.

3. A doorframe hinge slot machining machine according to claim 2, characterized in that, The positioning seat comprises a positioning portion and a sliding portion, the positioning portion is in plug-in fit with the positioning groove, and the top surface of the sliding portion is provided with anti-skid lines.

4. A machine tool for processing a hinge slot of a door frame according to claim 2 or 3, characterized in that, One end of the sliding groove penetrates to the end of the rotating shaft, the end of the rotating shaft is detachably connected with a blocking piece, a guide rod is arranged in the sliding groove, the positioning seat is provided with a guide hole, the guide rod is in sliding fit with the guide hole, the elastic piece is a spring, the spring is sleeved on the guide rod, one end of the spring abuts against the positioning seat, and the other end of the spring abuts against the blocking piece.

5. A doorframe hinge slot machining machine according to claim 4, characterized in that, The blocking piece is a bolt, and the end of the rotating shaft is provided with a screw hole, the bolt is in threaded fit with the screw hole.

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