A gear clamping and positioning device

Abstract

This utility model discloses a gear clamping and positioning device, including a positioning support platform. The positioning support platform is provided with several circumferentially distributed movable support beams. Each movable support beam is provided with a height support adjustment structure capable of supporting the bottom of the gear body and adjusting its height. Each movable support beam is detachably provided with an upper pressing structure for pressing and fixing the upper side of the gear body. The positioning support platform is provided with a guide structure for guiding the movement of the movable support beams. The positioning support platform is also provided with a push adjustment component for pushing and adjusting the movement of the movable support beams. The push adjustment component is driven by a motor-driven lead screw to realize the automated linear movement of the movable support beams. Combined with the guide rod of the guide structure, the positioning accuracy is high and labor-saving. The height support adjustment structure utilizes a first hydraulic cylinder to drive a lifting column, and the top cone can adapt to the height of the bottom surface of the gear, ensuring support stability.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically to a gear clamping and positioning device. Background Technology

[0002] Due to their large size, large gears are typically machined using a vertical gear shaping method. During machining, the gear blank is first fixed on a rotary table. The rotary table rotates the blank, allowing the gear shaping cutter to shape the teeth on its outer diameter. Several evenly distributed circumferential clamping blocks are placed within the inner hole of the gear blank to tighten it, fixing its position and preventing the gear from slipping on the rotary table during the shaping process.

[0003] A large gear clamping device for machining, disclosed in CN209664485U, includes a large gear fixedly installed on the central axis of a rotary table. A drive motor is arranged above the large gear, and the output shaft of the drive motor is vertically downward and fixedly connected to the large gear. Several small gears are arranged on the large gear, evenly distributed along the circumference. The axes of the small gears are perpendicular to the axis of the large gear, and the small gears mesh with the large gear.

[0004] Currently, in gear machining or assembly processes, traditional clamping and positioning devices struggle to achieve precise positioning of gears of different specifications, resulting in significant machining errors. Support and clamping structures are mostly fixed, unable to be dynamically adjusted according to gear dimensions, limiting their applicability. Manual adjustment of support height and clamping force is inefficient and susceptible to human error. Furthermore, the lack of reliable guiding and fixing structures makes gears prone to wobbling or displacement during machining. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned problems and provide a gear clamping and positioning device to overcome the defects of the prior art, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides a gear clamping and positioning device, including a positioning support platform. The positioning support platform is provided with a plurality of movable support beams arranged in a circular pattern. Each movable support beam is provided with a height support adjustment structure that can support the bottom of the gear body and adjust the height. Each movable support beam is detachably provided with an upper pressing structure for pressing and fixing the upper side of the gear body.

[0008] The positioning support platform is provided with a guide structure for guiding the movement of the movable support beam, and the positioning support platform is provided with a push adjustment component for pushing and adjusting the movement of the movable support beam.

[0009] Preferably, the upper surface of the positioning support platform is provided with smooth support bosses that correspond one-to-one with the movable support beams.

[0010] Preferably, the smooth support boss is provided with a number of sets of connecting holes evenly distributed along the moving direction of the movable support beam, and the movable support beam is provided with connecting bolts for threaded connection with the connecting holes.

[0011] Preferably, the guide structure includes a fixed plate fixedly mounted on the positioning support platform, two parallel guide rods fixedly connected to the fixed plate, and a guide hole through which the guide rods are guided and slidably assisted.

[0012] Preferably, the push adjustment assembly includes a translation slide groove formed in the positioning support platform, a movable slider is movably arranged in the translation slide groove, a lead screw is rotatably arranged in the translation slide groove, a threaded through hole for threaded connection with the lead screw is provided on the movable slider, a motor for driving the lead screw to rotate is provided on the positioning support platform, and a push plate protruding from the upper surface of the positioning support platform is fixedly arranged on the movable slider.

[0013] Preferably, the height support adjustment structure includes a lifting slide groove formed on the movable support beam, the upper end of the lifting slide groove is open and a lifting column is provided at the opening for vertical movement, the top of the lifting column is provided with a top cone, and a first hydraulic cylinder for driving the lifting column to move up and down is fixedly installed in the lifting slide groove.

[0014] Preferably, the upper pressing structure includes a pressure column, an upper pressure beam is fixedly installed on one side of the top of the pressure column, a second hydraulic cylinder is fixedly installed on the pressure column, a pressure rod is slidably connected through the upper pressure beam at the end away from the pressure column, the top of the pressure rod and the push rod head of the second hydraulic cylinder are fixedly connected to each other by a connecting plate, the lower end of the pressure rod slides through the upper pressure beam and is fixedly connected to a pressure block, and a handle is fixedly installed on the pressure column.

[0015] Preferably, the end of the movable support beam is provided with an open slide groove that is adjusted and slidable to the lower end of the pressure column. Three or more parallel adjusting shafts are fixedly installed in the open slide groove, and the pressure column is provided with an adjusting slide hole that is connected to the adjusting shaft.

[0016] The beneficial effects are:

[0017] 1. The push adjustment component uses a motor to drive the lead screw to realize the automated linear movement of the moving support beam. With the guide rod of the guide structure, the positioning accuracy is high and the effort is saved and convenient. The height support adjustment structure uses the first hydraulic cylinder to drive the lifting column. The top cone can adapt to the height of the bottom surface of the gear to ensure the stability of the support.

[0018] 2. The movable support beam is distributed along the circumference and its position is adjustable. With the connection holes and connecting bolts of the smooth support boss, it can be adapted to gears of different diameters. The upper clamping structure can adjust the clamping position through the sliding cooperation between the clamping column and the adjusting shaft to meet the clamping requirements of different parts on the upper side of the gear.

[0019] 3. The guide structure provides a precise movement trajectory for the movable support beam, ensuring that it moves smoothly along a straight line or in a specified direction, avoiding deviation or swaying. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is the front view of this utility model;

[0022] Figure 2 This is a utility model Figure 1 First-direction stereoscopic view;

[0023] Figure 3 This is a utility model Figure 2 A magnified view of section B;

[0024] Figure 4 This is a utility model Figure 1 AA cross-section view;

[0025] Figure 5 This is a utility model Figure 4 A magnified view of a portion at point C;

[0026] Figure 6 This is a utility model Figure 4 A magnified view of a portion of point D.

[0027] The reference numerals in the attached drawings are explained as follows: 1. Positioning support platform; 101. Smooth support boss; 102. Connecting hole; 2. Gear body; 3. Moving support beam; 301. Open slide groove; 302. Adjusting shaft; 303. Connecting bolt; 4. Push adjustment assembly; 401. Translation slide groove; 402. Lead screw; 403. Moving slider; 404. Motor; 405. Push plate; 5. Height support adjustment structure; 501. Lifting slide groove; 502. Lifting column; 503. Top cone; 504. First hydraulic cylinder; 6. Upper clamping structure; 601. Pressure column; 602. Handle; 603. Second hydraulic cylinder; 604. Connecting plate; 605. Pressure rod; 606. Pressure block; 607. Upper pressure beam; 7. Guide structure; 701. Fixing plate; 702. Guide rod; 703. Guide hole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] See Figures 1-6 As shown, this utility model provides a gear clamping and positioning device, with a positioning support platform 1 as the basic structure, and several movable support beams 3 arranged in a circular pattern on the top surface of the platform. Each movable support beam 3 has a height adjustment structure 5 installed on its upper surface (see attached specification). Figure 4 , Figure 5 and Figure 6 As shown, the height support adjustment structure 5 drives the lifting column 502 to move up and down within the lifting slide 501 via the first hydraulic cylinder 504. The top cone 503 at the top of the lifting column 502 can precisely abut against the bottom tooth groove of the gear body 2, achieving support for the bottom of the gear and adaptive height adjustment. Simultaneously, the end of each movable support beam 3 is detachably mounted on the upper clamping structure 6 via a sliding engagement with the adjusting shaft 302 through an open slide 301. This structure is supported by the pressure column 601, and the upper pressure beam 607 at the top carries the second hydraulic cylinder 603, driving the pressure block 606 at the lower end of the pressure rod 605 to press down on the upper surface of the gear body 2. This, combined with the bottom top cone 503, forms a fixed structure for clamping, ensuring the gear remains stable during processing. When the height support adjustment structure 5 and the upper clamping structure 6 work together to adjust the levelness of the gear body 2, a dial indicator or level can be used to check the levelness of the gear body 2.

[0030] The positioning support platform 1 is provided with a guide structure 7 for guiding the movement of the movable support beam 3. The guide structure 7 provides a precise movement trajectory for the movable support beam 3, ensuring that it moves smoothly along a straight line or in a specified direction, avoiding deviation or shaking. The positioning support platform 1 is provided with a push adjustment component 4 for pushing and adjusting the movement of the movable support beam 3.

[0031] The upper surface of the positioning support platform 1 is provided with smooth support bosses 101 that correspond one-to-one with the movable support beams 3. Several sets of connecting holes 102 are evenly distributed along the moving direction of the movable support beams 3 on the smooth support bosses 101. The movable support beams 3 are provided with connecting bolts 303 for threaded connection with the connecting holes 102. In practical applications, each set of connecting holes 102 consists of two holes, and the distance between two adjacent sets of connecting holes 102 is the minimum distance for adjusting the movement of the support beams 3. The push-adjustment component 4 facilitates precise adjustment of the support beams 3. Specifically, a distance sensor can be used for further adjustment. After the position of the support beams 3 is adjusted, they can be fixed using the connecting bolts 303.

[0032] The guide structure 7 includes a fixed plate 701 fixedly mounted on the positioning support platform 1. Two parallel guide rods 702 are fixedly connected to the fixed plate 701. A guide hole 703 is provided through the movable support beam 3 to guide the sliding of the guide rods 702.

[0033] The shift adjustment assembly 4 includes a translational slide 401 formed within the positioning support platform 1. A movable slider 403 is movably disposed within the translational slide 401, and a lead screw 402 is rotatably disposed within the translational slide 401. A threaded through hole is formed on the movable slider 403 for threaded connection with the lead screw 402. A motor 404 is mounted on the positioning support platform 1 to drive the lead screw 402 to rotate. A push plate 405, protruding from the upper surface of the positioning support platform 1, is fixedly mounted on the movable slider 403. In practical applications, the shift adjustment assembly 4 drives the lead screw 402 to rotate via the motor 404, converting the rotational motion into linear motion of the movable slider 403 within the translational slide 401. The push plate 405 then pushes the movable support beam 3 to move precisely along the guide rod 702. This achieves automated and high-precision adjustment of the position of the movable support beam 3, avoiding errors that may occur during manual operation. In conjunction with the guide structure 7, it ensures the stability and straightness of the movable support beam 3 during movement; in conjunction with the connecting hole 102 and the connecting bolt 303, it can be reliably fixed after precise adjustment.

[0034] The height support adjustment structure 5 includes a lifting slide 501 formed on the movable support beam 3. The upper end of the lifting slide 501 is open, and a lifting column 502 is vertically mounted at the opening. A top cone 503 is mounted at the top of the lifting column 502. A first hydraulic cylinder 504 is fixedly installed inside the lifting slide 501 to drive the lifting column 502 to move up and down. The height support adjustment structure 5 drives the lifting column 502 to move vertically within the lifting slide 501 via the first hydraulic cylinder 504. Combined with the top cone 503, this achieves flexible, precise adjustment and stable support for the height of the supported object. Combined with the movable function of the movable support beam 3, it can provide suitable support height for the load at different horizontal positions, meeting diverse working needs.

[0035] The upper clamping structure 6 includes a pressure column 601. An upper pressure beam 607 is fixedly mounted on one side of the top of the pressure column 601. A second hydraulic cylinder 603 is fixedly mounted on the pressure column 601. A pressure rod 605 is slidably connected vertically to the end of the upper pressure beam 607 away from the pressure column 601. The top of the pressure rod 605 is fixedly connected to the push rod head of the second hydraulic cylinder 603 via a connecting plate 604. The lower end of the pressure rod 605 slides through the upper pressure beam 607 and is fixedly connected to a pressure block 606. A handle 602 is fixedly mounted on the pressure column 601. The upper clamping structure 6 drives the pressure rod 605 via the second hydraulic cylinder 603, which in turn drives the pressure block 606 to apply pressure to the object, thus achieving a firm clamping and fixing of the gear body 2. The handle 602 facilitates the movement and positioning of the structure. The coordinated work of all components ensures the stability of the clamped object during processing, assembly, and other operations, preventing displacement.

[0036] The end of the movable support beam 3 is provided with an open slide groove 301 that is adjusted and slidable at the lower end of the pressure column 601. Three or more parallel adjusting shafts 302 are fixedly installed in the open slide groove 301. An adjusting slide hole is provided through the pressure column 601 to connect with the adjusting shafts 302.

[0037] Working principle:

[0038] In use, the motor 404 drives the lead screw 402 to rotate, which in turn drives the movable slider 403 to move linearly within the translational slide 401. The push plate 405 pushes the movable support beam 3 to slide along the guide rod 702, thereby achieving precise adjustment of the horizontal position. Each time the adjustment is performed, the movable support beam 3 can be reset to the position closest to the center of the positioning support table 1, which facilitates the push adjustment component 4 to push and adjust the position of the movable support beam 3.

[0039] After adjustment, the position of the movable support beam 3 is fixed by threading the connecting bolt 303 into the connecting hole 102 of the smooth support boss 101.

[0040] The first hydraulic cylinder 504 drives the lifting column 502 to move up and down in the lifting slide 501. The top cone 503 abuts against the bottom tooth groove of the gear body 2. The support height is adaptively adjusted by hydraulic pressure to ensure the levelness of the gear, which can be detected by dial indicator or level.

[0041] The upper clamping structure 6 is positioned above the gear by slidingly engaging with the adjusting shaft 302 of the movable support beam 3 through the adjusting slide hole of the pressure column 601. The second hydraulic cylinder 603 drives the pressure rod 605 to move downward, and the pressure block 606 presses against the upper surface of the gear, forming an upper and lower clamp with the bottom top cone 503 to ensure the gear is fixed.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A gear clamping and positioning device, characterized in that: It includes a positioning support platform (1), on which a number of movable support beams (3) are arranged in a circular pattern. Each movable support beam (3) is provided with a height support adjustment structure (5) that can support the bottom of the gear body (2) and adjust its height. Each movable support beam (3) can be detachably provided with an upper pressing structure (6) for pressing and fixing the upper side of the gear body (2). The positioning support platform (1) is provided with a guide structure (7) for guiding the movement of the movable support beam (3), and the positioning support platform (1) is provided with a push adjustment component (4) for pushing and adjusting the movement of the movable support beam (3).

2. The gear clamping and positioning device according to claim 1, characterized in that: The upper surface of the positioning support platform (1) is provided with smooth support bosses (101) that correspond one-to-one with the movable support beam (3).

3. The gear clamping and positioning device according to claim 2, characterized in that: The smooth support boss (101) is provided with a number of sets of connecting holes (102) evenly distributed along the moving direction of the movable support beam (3), and the movable support beam (3) is provided with connecting bolts (303) for threaded connection with the connecting holes (102).

4. The gear clamping and positioning device according to claim 1, characterized in that: The guide structure (7) includes a fixed plate (701) fixedly installed on the positioning support platform (1), and two parallel guide rods (702) are fixedly connected on the fixed plate (701). A guide hole (703) is provided through the movable support beam (3) to guide the sliding of the guide rods (702).

5. A gear clamping and positioning device according to claim 1 or 4, characterized in that: The push adjustment assembly (4) includes a translation slide (401) opened in the positioning support platform (1), a movable slider (403) is movably arranged in the translation slide (401), a lead screw (402) is rotatably arranged in the translation slide (401), a threaded hole for threaded connection with the lead screw (402) is opened through the movable slider (403), a motor (404) for driving the lead screw (402) to rotate is arranged on the positioning support platform (1), and a push plate (405) protruding from the upper surface of the positioning support platform (1) is fixedly arranged on the movable slider (403).

6. The gear clamping and positioning device according to claim 1, characterized in that: The height support adjustment structure (5) includes a lifting slide (501) opened on the movable support beam (3). The upper end of the lifting slide (501) is open and a lifting column (502) is provided at the opening for vertical movement. A top cone (503) is provided at the top of the lifting column (502). A first hydraulic cylinder (504) for driving the lifting column (502) to move up and down is fixedly installed in the lifting slide (501).

7. The gear clamping and positioning device according to claim 1, characterized in that: The upper pressing structure (6) includes a pressure column (601), an upper pressure beam (607) is fixedly installed on one side of the top end of the pressure column (601), a second hydraulic cylinder (603) is fixedly installed on the pressure column (601), a pressure rod (605) is slidably connected through the upper pressure beam (607) away from the pressure column (601), the top end of the pressure rod (605) and the push rod head of the second hydraulic cylinder (603) are fixedly connected to each other through a connecting plate (604), the lower end of the pressure rod (605) slides through the upper pressure beam (607) and is fixedly connected to a pressure block (606), and a handle (602) is fixedly installed on the pressure column (601).

8. The gear clamping and positioning device according to claim 7, characterized in that: The end of the movable support beam (3) is provided with an open slide groove (301) for adjusting the sliding of the lower end of the pressure column (601). Three or more parallel adjusting shafts (302) are fixedly installed in the open slide groove (301). The pressure column (601) is provided with an adjusting slide hole for connecting the adjusting shafts (302).

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