Bending device for stair handrail machining

Abstract

The utility model belongs to the technical field of stair handrail machining equipment, and discloses a bending device for stair handrail machining, which comprises a machining table, guide wheels are rotatably connected to two sides of the top of the machining table at equal intervals, and a circular pressing block is fixedly connected to the bottom of a connecting plate. The automatic clamping assembly comprises two sets of sliding plates symmetrically arranged above the machining table, sliding rods are symmetrically and fixedly connected to the machining table through fixing bases and are in sliding connection with the sliding plates, connecting rods are symmetrically hinged between connecting plates and the sliding plates through hinge pieces, and rolling wheels are rotationally connected to the top ends of vertical rods through connecting bases. The bottom end of each vertical rod is rotationally connected with a pressing wheel through a mounting base, the vertical rods are sleeved with springs, the upper portions of the two sides of the machining table are fixedly connected with protruding blocks through connecting frames, and the problem that the machining efficiency of the stair handrail is affected due to the fact that the clamping and dismounting processes of the stair handrail are troublesome is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stair handrail processing equipment, in particular to a bending device for stair handrail processing. Background Art

[0002] Stair handrail bending device is a mechanical device specially designed to bend metal materials (such as stainless steel, aluminum or copper) into the required shape in order to make stair handrails. Stair handrail bending device is an important equipment in the stair manufacturing and renovation industry. It not only improves production efficiency and product quality, but also provides manufacturers with greater flexibility and competitiveness.

[0003] For example, a Chinese utility model patent with announcement number CN220028311U discloses a bending device for stair handrail processing. The device is provided with a mounting groove and a connecting mechanism, so that the clamping plate can fix the stair handrail under the action of the connecting mechanism, thereby ensuring the stability of the stair handrail when bending.

[0004] However, in actual use, the device needs to manually tighten the fastening bolts in sequence to fix the stair handrail, and after the bending is completed, the fastening bolts need to be manually loosened to disassemble the stair handrail, which is quite troublesome and reduces the processing efficiency of the stair handrail.

[0005] In summary, there is currently a need for a bending device that is convenient for fixing stair handrails. Utility Model Content

[0006] The utility model aims to provide a bending device for stair handrail processing. The device pushes the circular pressing block to move vertically downward through a hydraulic cylinder, so that the stair handrail can be bent, and when the circular pressing block moves vertically downward, it can also drive the automatic clamping assembly to clamp the stair handrail between the pressing wheel and the guide wheel, thereby achieving the purpose of automatically clamping and fixing the stair handrail, and effectively improving the processing efficiency of the stair handrail.

[0007] The technical solution adopted by the utility model to solve the above problems is: a bending device for stair handrail processing, comprising:

[0008] A processing table, the top of which is rotatably connected to a plurality of guide wheels, a bracket is fixedly connected to the processing table, a telescopic component is fixedly connected to the top of the bracket, a connecting plate is fixedly connected to the telescopic end of the telescopic component, and a circular pressing block for bending the stair handrail is fixedly connected to the bottom of the connecting plate;

[0009] An automatic clamping assembly is arranged on the circular pressing block and is used for clamping the stair handrail.

[0010] A further preferred technical solution is that the automatic clamping assembly includes a slide plate arranged above the processing table, a slide rod is fixedly connected to the processing table through a fixed seat and is slidably connected to the slide plate, a connecting rod is symmetrically hinged between the connecting plate and the slide plate through a hinge, a vertical rod is slidably connected to the slide plate, the top end of the vertical rod is rotatably connected to a roller through a connecting seat, the bottom end of the vertical rod is rotatably connected to a pressure wheel through a mounting seat, a spring is sleeved on the vertical rod, and a protrusion is fixedly connected to the processing table through a connecting frame.

[0011] A further preferred technical solution is that: a rectangular through groove is provided on the processing table, and the rectangular through groove is located below the circular pressing block.

[0012] A further preferred technical solution is that the centers of the plurality of guide wheels are all on the same horizontal line.

[0013] A further preferred technical solution is that two ends of the spring are fixedly connected to the connecting seat and the slide plate respectively.

[0014] A further preferred technical solution is that: an inclined surface for abutting against the roller is provided on the lower side of the protrusion.

[0015] A further preferred technical solution is that a stopper is fixedly connected to the protrusion.

[0016] A further preferred technical solution is that anti-slip particles are provided on the protrusions.

[0017] A further preferred technical solution is that a guide rod is fixedly connected to the mounting seat and is slidably connected to the slide plate.

[0018] A further preferred technical solution is that the telescopic assembly includes a hydraulic cylinder.

[0019] In summary, the utility model has the following benefits:

[0020] 1. The utility model uses a hydraulic cylinder to push the circular pressure block to move vertically downward, so that the stair handrail can be bent, and when the circular pressure block moves vertically downward, the connecting plate and the hinged effect between the slide plate and the connecting rod, and the sliding cooperation between the slide plate and the slide rod can be used to push the two groups of slide plates to move back to each other, and the movement of the slide plate drives the roller to move, and when the roller rolls along the inclined surface of the protrusion to the horizontal surface, due to the change in height position, the roller will squeeze the spring and move downward, so that the pressure wheel can be pushed downward to clamp the stair handrail between the pressure wheel and the guide wheel, thereby realizing the purpose of automatically clamping and fixing the stair handrail, and effectively improving the processing efficiency of the stair handrail.

[0021] 2. After the pressure wheel of the utility model contacts the stair handrail, the hydraulic cylinder continues to push the pressure wheel to continue rolling on the surface of the stair handrail until the bending is completed, thereby achieving a buffering effect, and the rolling pressure wheel cooperates with the guide wheel to straighten the stair handrail, thereby ensuring the processing quality of the stair handrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 It is a three-dimensional schematic diagram of the connection structure of the connecting plate, the sliding plate, the sliding rod and the connecting rod of the utility model;

[0024] Figure 3 It is a three-dimensional schematic diagram of the connection structure of the skateboard, vertical rod, roller, pressure wheel and spring of the utility model.

[0025] In the accompanying drawings, the components represented by the various numbers are as follows: 1. processing table; 2. guide wheel; 3. hydraulic cylinder; 4. connecting plate; 5. circular pressure block; 6. rectangular through groove; 101. slide plate; 102. slide rod; 103. connecting rod; 104. vertical rod; 105. roller; 106. pressure wheel; 107. spring; 108. bump; 109. stop block; 110. guide rod. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0028] Example:

[0029] Please combine Figure 1-3 , a bending device for stair handrail processing in this embodiment includes:

[0030] A processing table 1, both sides of the top of the processing table 1 are equidistantly connected to guide wheels 2 for rotation, and the centers of the guide wheels 2 on the left and right sides are on the same horizontal line, which is convenient for ensuring the level of the stair handrail. A bracket is fixedly connected to the processing table 1, and a hydraulic cylinder 3 is fixedly connected to the top of the bracket. A connecting plate 4 is fixedly connected to the telescopic end of the hydraulic cylinder 3, and a circular pressing block 5 is fixedly connected to the bottom of the connecting plate 4. A rectangular through groove 6 is opened at the center of the processing table 1 and the rectangular through groove 6 is directly below the circular pressing block 5, which is convenient for bending the stair handrail downward;

[0031] The automatic clamping assembly includes two groups of slide plates 101 symmetrically arranged above the processing table 1. The processing table 1 is symmetrically fixed with slide bars 102 through a fixed seat and is slidably connected to the slide plates 101. A connecting rod 103 is symmetrically hinged between the connecting plate 4 and the slide plate 101 through a hinge. A vertical rod 104 is slidably connected to the slide plate 101. The top of the vertical rod 104 is rotatably connected to a roller 105 through a connecting seat. The bottom of the vertical rod 104 is rotatably connected to a pressure wheel 106 through a mounting seat. The position of the pressure wheel 106 is parallel to the position of the guide wheel 2 in the vertical direction. A spring 107 is sleeved on the outside of the vertical rod 104. A protrusion 108 is fixedly connected through a connecting frame, and both ends of a spring 107 are fixedly connected to a connecting seat and a slide plate 101 respectively, so that the roller 105 can automatically reset itself by utilizing the elastic action of the spring 107 after leaving the protrusion 108. The longitudinal section of the protrusion 108 is a right-angled trapezoidal structure, and the two groups of protrusions 108 are arranged in a mirror-symmetrical manner. The surface of the protrusion 108 is provided with anti-skid particles, which can increase the friction between the roller 105 and the surface of the protrusion 108 to prevent slipping. A guide rod 110 is symmetrically fixedly connected to the mounting seat and is slidably connected to the slide plate 101, which can play a certain guiding role in the vertical movement of the roller 105.

[0032] The implementation principle of a bending device for stair handrail processing in the embodiment of the present application is as follows: first, the stair handrail is placed on the guide wheels 2 on the left and right sides at the same time, and then the hydraulic cylinder 3 is started, and the connecting plate 4 is pushed downward by the hydraulic cylinder 3, so that the circular pressing block 5 can be pushed downward, and the circular pressing block 5 will continue to press the stair handrail to bend it. At the same time, when the circular pressing block 5 moves vertically downward, the connecting plate 4 and the hinge between the slide plate 101 and the connecting rod 103, and the sliding cooperation between the slide plate 101 and the slide bar 102 can make it possible to push the two groups of slide plates 101 to move back to each other, and the movement of the slide plate 101 drives the roller 105 to move. When the roller 105 rolls along the inclined surface of the protrusion 108 to the horizontal surface, the roller 105 is moved due to the change in height position. The wheel 105 will squeeze the spring 107 and move downward, thereby pushing the pressure wheel 106 to move downward to clamp the stair handrail between the pressure wheel 106 and the guide wheel 2, thereby achieving the purpose of automatically clamping and fixing the stair handrail. After the pressure wheel 106 first contacts the stair handrail, due to the continued push of the hydraulic cylinder 3, the pressure wheel 106 will continue to roll on the surface of the stair handrail until the circular pressure block 5 completes the bending of the stair handrail, thereby achieving a buffering effect, and the rolling pressure wheel 106 cooperates with the guide wheel 2 to straighten the stair handrail, thereby ensuring the processing quality of the stair handrail. Finally, the hydraulic cylinder 3 is controlled to drive the circular pressure block 5 to reset, so that the stair handrail can be automatically released. At this time, the bent stair handrail can be removed.

[0033] In addition, a further improvement is that a stopper 109 is fixedly connected to the protrusion 108 to prevent the roller 105 from excessively moving and causing it to be separated from the protrusion 108.

[0034] In addition, the same or similar element symbols are used to refer to the same or similar parts or steps in the drawings and descriptions as much as possible. The drawings are presented in simplified form and are not drawn to exact scale. For convenience and clarity only, directional terms such as top, bottom, front side, back side, left side, right side, front, back, upward, above, above, below, below, behind, and in front may be used with respect to the drawings. These and similar directional terms should not be construed as limiting the scope of the present disclosure in any way.

Claims

1. A bending device for stair handrail processing, characterized in that: include: A processing table (1), wherein the top of the processing table (1) is rotatably connected to a plurality of guide wheels (2), a bracket is fixedly connected to the processing table (1), a telescopic component is fixedly connected to the top of the bracket, a connecting plate (4) is fixedly connected to the telescopic end of the telescopic component, and a circular pressing block (5) for bending a stair handrail is fixedly connected to the bottom of the connecting plate (4); An automatic clamping component, the automatic clamping component is arranged on the circular pressing block (5) and is used to clamp the stair handrail.

2. A bending device for stair handrail processing according to claim 1, characterized in that: The automatic clamping assembly comprises a slide plate (101) arranged above the processing table (1); a slide bar (102) is fixedly connected to the processing table (1) via a fixed seat and is slidably connected to the slide plate (101); a connecting rod (103) is symmetrically hinged between the connecting plate (4) and the slide plate (101) via a hinge; a vertical rod (104) is slidably connected to the slide plate (101); the top end of the vertical rod (104) is rotatably connected to a roller (105) via a connecting seat; the bottom end of the vertical rod (104) is rotatably connected to a pressure wheel (106) via a mounting seat; a spring (107) is sleeved on the vertical rod (104); and a protrusion (108) is fixedly connected to the processing table (1) via a connecting frame.

3. A bending device for stair handrail processing according to claim 1, characterized in that: The processing table (1) is provided with a rectangular through groove (6), and the rectangular through groove (6) is located below the circular pressing block (5).

4. A bending device for stair handrail processing according to claim 1, characterized in that: The centers of the plurality of guide wheels (2) are all on the same horizontal line.

5. A bending device for stair handrail processing according to claim 2, characterized in that: The two ends of the spring (107) are respectively fixedly connected to the connecting seat and the sliding plate (101).

6. A bending device for stair handrail processing according to claim 2, characterized in that: The lower side of the protrusion (108) is provided with an inclined surface for abutting against the roller (105).

7. A bending device for stair handrail processing according to claim 2, characterized in that: A stopper (109) is fixedly connected to the protrusion (108).

8. A bending device for stair handrail processing according to claim 2, characterized in that: Anti-skid particles are arranged on the protrusion (108).

9. A bending device for stair handrail processing according to claim 2, characterized in that: The mounting seat is fixedly connected to a guide rod (110) and is slidably connected to the slide plate (101).

10. A bending device for stair handrail processing according to claim 1, characterized in that: The telescopic assembly comprises a hydraulic cylinder (3).

Images