CN111589902A

CN111589902A - Brake drum end face flattening equipment

Info

Publication number: CN111589902A
Application number: CN202010329386.6A
Authority: CN
Inventors: 郑振宇
Original assignee: Pinghu Kairongyi Machinery Technology Co ltd
Current assignee: Pinghu Kairongyi Machinery Technology Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-08-28

Abstract

The invention relates to the technical field of brake drum processing, in particular to brake drum end face flattening equipment which comprises a first rack, a second rack, a guide rod, a lifting mechanism, a tensioning mechanism, a flattening mechanism and a controller, wherein the first rack is arranged on the upper portion of the first rack; the first machine frame is erected above the second machine frame, a through hole for a workpiece to pass through is formed in the first machine frame, the bottom of the guide rod is vertically installed at the four corners of the upper end of the second machine frame and penetrates through the first machine frame, the lifting mechanism and the movable end of the flattening mechanism are in clearance fit with the guide rod, the tensioning mechanism is installed on the second machine frame and is collinear with the axis of the output end of the flattening mechanism, the movable end of the lifting mechanism is provided with a through hole which is smaller than the section of the brake drum workpiece and can pass through the upper end of the tensioning mechanism, and the lifting mechanism, the tensioning mechanism and the flattening mechanism are; according to the technical scheme, the problems are solved, the positioning is accurate, the yield of the formed part is high, and the labor cost is saved.

Description

Brake drum end face flattening equipment

Technical Field

The invention relates to the technical field of brake drum processing, in particular to brake drum end face flattening equipment.

Background

The brake drum is a friction coupling of a drum brake, and should have a friction coefficient as high and stable as possible, and suitable wear resistance, heat radiation, heat capacity, and the like, in addition to strength and rigidity required as a member. The brake drum terminal surface need flatten in the brake drum production process, and the brake drum terminal surface processing among the prior art wastes time and energy, and it is great to consume the manpower, often causes the problem that the yields is low because of the positioning accuracy is not high moreover.

Disclosure of Invention

The technical problem to be solved by the invention is to provide brake drum end face flattening equipment, and the technical scheme solves the problems, is accurate in positioning, high in yield of formed parts and labor cost saving.

The brake drum end face flattening equipment is characterized by comprising a first rack, a second rack, a guide rod, a lifting mechanism, a tensioning mechanism, a flattening mechanism and a controller;

the first machine frame is arranged above the second machine frame, a through hole for a workpiece to pass through is formed in the first machine frame, the bottom of the guide rod is vertically arranged at the four corners of the upper end of the second machine frame and penetrates through the first machine frame, the lifting mechanism and the movable end of the flattening mechanism are in clearance fit with the guide rod, the tensioning mechanism is arranged on the second machine frame and is collinear with the axis of the output end of the flattening mechanism, the movable end of the lifting mechanism is provided with a through hole which is smaller than the section of the brake drum workpiece and can pass through the upper end of the tensioning mechanism, and the lifting mechanism, the tensioning mechanism and the flattening mechanism are.

As a preferred scheme of brake drum end face flattening equipment, a guide sleeve is arranged at the position of the guide rod in clearance fit with the movable end of the lifting mechanism and the flattening mechanism.

As a preferred scheme of brake drum end face flattening equipment, the lifting mechanism comprises a first linear driver, a lifting bedplate and a clamping groove; the first linear driver is installed in second frame bottom, and the vertical upwards setting of second frame platen is run through to first linear driver output, lift platen and first linear driver output end fixed connection, lift platen and guide bar clearance fit all around, and the joint groove is seted up at lift platen up end around lift platen via hole axis, and under operating condition, the work piece bottom is fixed in the joint inslot, and first linear driver is connected with the controller electricity.

As a preferred scheme of brake drum end face flattening equipment, the tensioning mechanism comprises a hollow cylinder, a through groove, a guide rail, a second linear driver, a connecting rod assembly and a sliding block; the hollow cylinder is installed in the second frame, a plurality of through grooves are opened on the peripheral wall of the hollow cylinder around the axis of the hollow cylinder and are communicated with the inside of the hollow cylinder, guide rails with the same number as the through grooves are uniformly distributed on the upper ends of the through grooves around the axis of the hollow cylinder, the second linear driver is installed at the bottom of the hollow cylinder, the output end of the second linear driver extends into the inside of the hollow cylinder and is collinear with the axis of the hollow cylinder, the bottom of the connecting rod assembly is fixedly connected with the output end of the second linear driver, the output end of the connecting rod assembly with the same number as the guide rails is hinged with the sliding block, the sliding block is connected with the guide rails in a.

As a preferable scheme of the brake drum end face flattening equipment, the connecting rod assembly comprises a hinge seat and a connecting rod; articulated seat fixed mounting is on the second linear actuator output, and a plurality of connecting rods are around articulated seat axis evenly distributed, and connecting rod one end is articulated with articulated seat, and the connecting rod other end is articulated with the slider bottom.

As a preferred scheme of the brake drum end face flattening device, the flattening mechanism comprises a portal frame, a hydraulic press, a pressing plate and a pressing ring; the portal frame is hung above the first portal frame, the hydraulic press is installed on the portal frame, the working end of the hydraulic press is arranged downwards, the top end of the pressing plate is fixedly connected with the output end of the hydraulic press, the periphery of the pressing plate is in clearance fit with the guide rods, the pressing ring is installed at the lower end of the pressing plate, the shape of the pressing ring is matched with the shape of the end part of a workpiece, and the pressing ring and the axis of the.

Compared with the prior art, the invention has the beneficial effects that:

the operator firstly enables the working end of the lifting mechanism to be at the highest position through the controller so as to install the end portion, needing to be flattened, of the brake drum at the movable end of the lifting mechanism upwards. Then, the working end of the lifting mechanism is controlled by the operator through the controller to drive the workpiece to move downwards to the upper end face of the second rack, and the working end of the tensioning mechanism can be avoided due to the fact that the through hole is formed in the working end of the lifting mechanism. The movement of the working end of the lifting mechanism is limited by the bottom surface of the first frame and the upper end surface of the second frame. And then the controller drives the working end of the tensioning mechanism to expand to the periphery to tension the end part of the workpiece, then the controller controls the working end of the flattening mechanism to move downwards to flatten the end surface of the workpiece of the brake drum, at the moment, the upper end of the first frame further limits the downward position of the working end of the flattening mechanism, and the flattening effect is accurately controlled. After the flattening operation is completed, the working end of the flattening mechanism is driven to reset by a worker through the controller, the working end of the lifting mechanism is controlled to ascend to lift the workpiece above the first rack, then the worker takes off the machined workpiece and replaces the machined workpiece with a new workpiece, and the process is repeated in a circulating mode. Through increase the guide pin bushing in clearance fit department, further improve the smoothness degree of equipment operation, make the structure more stable, reduce wearing and tearing, extension equipment life.

1. The positioning is accurate;

2. the yield of the formed part is high;

3. the labor cost is saved.

Drawings

FIG. 1 is a perspective view of a brake drum workpiece being processed in accordance with the present invention;

FIG. 2 is a first perspective view of the present invention;

FIG. 3 is a second perspective view of the present invention;

FIG. 4 is a perspective view of the lift table of the present invention;

FIG. 5 is a perspective view of the tensioning mechanism of the present invention;

FIG. 6 is an exploded perspective view of FIG. 5;

FIG. 7 is a front view of the present invention;

FIG. 8 is a sectional view taken along line A-A of FIG. 7;

FIG. 9 is an enlarged view of a portion of FIG. 8 at B;

fig. 10 is a partial perspective view of the present invention.

The reference numbers in the figures are:

1. a first frame;

2. a second frame;

3. a guide bar;

4. a lifting mechanism; 4a, a first linear driver; 4b, lifting the bedplate; 4c, a clamping groove;

5. a tensioning mechanism; 5a, a hollow cylinder; 5b, a through groove; 5c, a guide rail; 5d, a second linear driver; 5e, connecting rod components; 5e1, hinged seat; 5e2, connecting rod; 5f, a sliding block;

6. a flattening mechanism; 6a, a portal frame; 6b, a hydraulic press; 6c, pressing a plate; 6d, pressing the ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 2, 3 and 8, the brake drum end face flattening device comprises a first frame 1, a second frame 2, a guide rod 3, a lifting mechanism 4, a tensioning mechanism 5, a flattening mechanism 6 and a controller;

first frame 1 erects in second frame 2 top, and be equipped with the via hole that supplies the work piece to pass through on

first frame

1, 3 bottoms of guide bar are installed perpendicularly in 2 upper end four corners departments of second frame and are run through first frame 1, elevating

system

4, 6 expansion ends of flattening mechanism all with 3 clearance fit of guide bar, straining mechanism 5 installs on second frame 2 and with 6 output end axis collineations of flattening mechanism, 4 expansion ends of elevating system are equipped with the via hole that can follow straining mechanism 5 upper end and pass through that the cross-section is less than brake drum work piece cross-section, elevating system 4, straining mechanism 5, flattening mechanism 6 all is connected with the controller electricity.

The operator firstly makes the working end of the lifting mechanism 4 in the highest position through the controller so as to install the end part of the brake drum needing to be flattened upwards at the movable end of the lifting mechanism 4. Then, the working end of the lifting mechanism 4 is controlled by a worker through the controller to drive the workpiece to move downwards to the upper end face of the second rack 2, and the working end of the lifting mechanism 4 is provided with a through hole so as to avoid the working end of the tensioning mechanism 5. The movement of the working end of the lifting mechanism 4 is limited by the bottom surface of the first frame 1 and the upper end surface of the second frame 2. Then the controller drives the working end of the tensioning mechanism 5 to expand to the periphery to tension the end part of the workpiece, then the controller controls the working end of the flattening mechanism 6 to move downwards to flatten the end surface of the workpiece of the brake drum, at the moment, the upper end of the first frame 1 further limits the downward position of the working end of the flattening mechanism 6, and the flattening effect is accurately controlled. After the flattening operation is completed, the operator drives the working end of the flattening mechanism 6 to reset through the controller, controls the working end of the lifting mechanism 4 to ascend again to lift the workpiece above the first machine frame 1, and then takes down the machined workpiece to replace the workpiece with a new workpiece, and the process is repeated in a circulating mode.

And guide sleeves are arranged at the clearance fit positions of the guide rod 3, the lifting mechanism 4 and the movable end of the flattening mechanism 6.

Through increase the guide pin bushing in clearance fit department, further improve the smoothness degree of equipment operation, make the structure more stable, reduce wearing and tearing, extension equipment life.

As shown in fig. 3 and 4, the lifting mechanism 4 includes a first linear driver 4a, a lifting platen 4b and a clamping groove 4 c; the first linear driver 4a is installed in 2 bottoms of second frame, the vertical upwards setting of 2 platens of second frame is run through to first linear driver 4a output, lift platen 4b and the vertical fixed connection of 4a output tip of first linear driver, lift platen 4b is around with 3 clearance fit of guide bar, joint groove 4c is seted up at lift platen 4b up end around lift platen 4b via hole axis, under operating condition, the work piece bottom is fixed in joint groove 4c, first linear driver 4a is connected with the controller electricity.

The first linear actuator 4a is a single-shaft air cylinder. The workpiece is clamped by the clamping groove 4c matched with the shape of the bottom of the workpiece, so that the workpiece is prevented from deviating from the axis. The controller drives the first linear driver 4a to push the lifting platform plate 4b to do linear motion along the axis direction of the guide rod 3, so that the lifting function of the workpiece is realized.

As shown in fig. 5, 6 and 9, the tensioning mechanism 5 includes a hollow column 5a, a through slot 5b, a guide rail 5c, a second linear driver 5d, a connecting rod assembly 5e and a sliding block 5 f; the hollow cylinder 5a is installed on the second rack 2, the plurality of through grooves 5b are formed in the peripheral wall of the hollow cylinder 5a around the axis of the hollow cylinder 5a and communicated with the inside of the hollow cylinder 5a, the guide rails 5c with the same number as the through grooves 5b are evenly distributed at the upper end of the through grooves 5b around the axis of the hollow cylinder 5a, the second linear driver 5d is installed at the bottom of the hollow cylinder 5a, the output end of the second linear driver 5d extends into the inside of the hollow cylinder 5a and is collinear with the axis of the hollow cylinder 5a, the bottom of the connecting rod assembly 5e is fixedly connected with the output end of the second linear driver 5d, the output ends of the connecting rod assembly 5e with the same number as the guide rails 5c are hinged with the sliding block 5f, the sliding block 5f is connected with the guide rails 5c in.

The second linear actuator 5d is a single-shaft cylinder. The controller drives the connecting rod assembly 5e to move by driving the output end of the second linear driver 5d to do linear motion along the axis of the hollow column 5 a. The link assembly 5e in turn drives the sliders 5f toward or away from each other to perform a collapsing or expanding function. When the slide block 5f expands, radial supporting force far away from the axis is generated on the inner wall of the brake drum, so that the upper end of the workpiece forms a regular annular structure after the flattening mechanism 6 works. The through groove 5b provides space for the movement of the connecting rod assembly 5e and plays a role in guiding, so that the structure is more stable. The guide rail 5c guides the slide of the slider 5 f.

As shown in fig. 6 and 9, the connecting rod assembly 5e includes a hinge seat 5e1 and a connecting rod 5e 2; the hinged seat 5e1 is fixedly arranged at the output end of the second linear driver 5d, a plurality of connecting rods 5e2 are uniformly distributed around the axis of the hinged seat 5e1, one end of each connecting rod 5e2 is hinged with the hinged seat 5e1, and the other end of each connecting rod 5e2 is hinged with the bottom of the sliding block 5 f.

The linear motion of the output end of the second linear driver 5d is converted into a radial motion relative to the axis of the hollow cylinder 5a by the link structure formed by the hinge of the hinge seat 5e1, the link 5e2 and the slider 5f, so as to tension the workpiece.

As shown in fig. 7 and 10, the flattening mechanism 6 includes a gantry 6a, a hydraulic machine 6b, a pressing plate 6c and a pressing ring 6 d; the portal frame 6a is hung above the first rack 1, the hydraulic machine 6b is installed on the portal frame 6a, the working end of the hydraulic machine is arranged downwards, the top end of the pressing plate 6c is fixedly connected with the output end of the hydraulic machine 6b, the periphery of the pressing plate 6c is in clearance fit with the guide rod 3, the pressing ring 6d is installed at the lower end of the pressing plate 6c, the shape of the pressing ring is matched with the shape of the end part of a workpiece, and the pressing ring 6d and the axis of the workpiece.

The gantry 6a provides support for the hydraulic machine 6 b. The controller drives the hydraulic machine 6b to push the pressing plate 6c with the pressing ring 6d to move downward. The pressing ring 6d is pressed against the end face of the workpiece to flatten it.

The working principle of the invention is as follows:

the operator firstly makes the working end of the lifting mechanism 4 in the highest position through the controller so as to install the end part of the brake drum needing to be flattened upwards at the movable end of the lifting mechanism 4. Then, the working end of the lifting mechanism 4 is controlled by a worker through the controller to drive the workpiece to move downwards to the upper end face of the second rack 2, and the working end of the lifting mechanism 4 is provided with a through hole so as to avoid the working end of the tensioning mechanism 5. The movement of the working end of the lifting mechanism 4 is limited by the bottom surface of the first frame 1 and the upper end surface of the second frame 2. Then the controller drives the working end of the tensioning mechanism 5 to expand to the periphery to tension the end part of the workpiece, then the controller controls the working end of the flattening mechanism 6 to move downwards to flatten the end surface of the workpiece of the brake drum, at the moment, the upper end of the first frame 1 further limits the downward position of the working end of the flattening mechanism 6, and the flattening effect is accurately controlled. After the flattening operation is completed, the operator drives the working end of the flattening mechanism 6 to reset through the controller, controls the working end of the lifting mechanism 4 to ascend again to lift the workpiece above the first machine frame 1, and then takes down the machined workpiece to replace the workpiece with a new workpiece, and the process is repeated in a circulating mode. Through increase the guide pin bushing in clearance fit department, further improve the smoothness degree of equipment operation, make the structure more stable, reduce wearing and tearing, extension equipment life.

Claims

1. The brake drum end face flattening equipment is characterized by comprising a first rack (1), a second rack (2), a guide rod (3), a lifting mechanism (4), a tensioning mechanism (5), a flattening mechanism (6) and a controller;

first frame (1) is erect in second frame (2) top, and be equipped with the via hole that supplies the work piece to pass through on first frame (1), guide bar (3) bottom is installed perpendicularly in second frame (2) upper end four corners department and is run through first frame (1), elevating system (4), flattening mechanism (6) expansion end all with guide bar (3) clearance fit, straining device (5) are installed on second frame (2) and with flattening mechanism (6) output end axis collineation, elevating system (4) expansion end is equipped with the cross-section and is less than the brake drum work piece cross-section can follow the via hole that straining device (5) upper end passed through, elevating system (4), straining device (5), flattening mechanism (6) all are connected with the controller electricity.

2. The brake drum end face flattening device according to claim 1, characterized in that a guide sleeve is arranged at the position where the guide rod (3) is in clearance fit with the movable ends of the lifting mechanism (4) and the flattening mechanism (6).

3. Brake drum end face flattening apparatus according to claim 1, characterized in that said lifting mechanism (4) comprises a first linear actuator (4 a), a lifting platen (4 b) and a snap groove (4 c); first linear actuator (4 a) is installed in second frame (2) bottom, first linear actuator (4 a) output runs through the vertical upwards setting of second frame (2) platen, lift platen (4 b) and first linear actuator (4 a) output end fixed connection, lift platen (4 b) all around with guide bar (3) clearance fit, joint groove (4 c) are seted up at lift platen (4 b) up end around lift platen (4 b) via hole axis, under the operating condition, the work piece bottom is fixed in joint groove (4 c), first linear actuator (4 a) is connected with the controller electricity.

4. Brake drum end face flattening apparatus according to claim 1, characterized in that said tensioning mechanism (5) comprises a hollow cylinder (5 a), a through slot (5 b), a guide rail (5 c), a second linear actuator (5 d), a connecting rod assembly (5 e) and a slider (5 f); the hollow cylinder (5 a) is arranged on the second frame (2), a plurality of through grooves (5 b) are arranged on the peripheral wall of the hollow cylinder (5 a) around the axis of the hollow cylinder (5 a) and communicated with the inside of the hollow cylinder (5 a), guide rails (5 c) with the same number as the through grooves (5 b) are uniformly distributed at the upper end of the through grooves (5 b) around the axis of the hollow cylinder (5 a), a second linear driver (5 d) is arranged at the bottom of the hollow cylinder (5 a), the output end of the second linear driver (5 d) extends into the inside of the hollow cylinder (5 a) and is collinear with the axis of the hollow cylinder (5 a), the bottom of the connecting rod assembly (5 e) is fixedly connected with the output end of the second linear driver (5 d), the output ends of the connecting rod assemblies (5 e) with the same number as the guide rails (5 c) are hinged with the sliding block (5 f), the sliding block (5 f) is connected with the guide rails (5, the second linear actuator (5 d) is electrically connected to the controller.

5. Brake drum end face flattening apparatus according to claim 4, characterized in that said linkage assembly (5 e) comprises a hinge seat (5 e 1) and a linkage (5 e 2); articulated seat (5 e 1) fixed mounting is on second linear drive (5 d) output, and a plurality of connecting rods (5 e 2) are around articulated seat (5 e 1) axis evenly distributed, and connecting rod (5 e 2) one end is articulated with articulated seat (5 e 1), and the connecting rod (5 e 2) other end is articulated with slider (5 f) bottom.

6. The brake drum end face flattening device according to claim 1, wherein the flattening mechanism (6) comprises a portal frame (6 a), a hydraulic machine (6 b), a pressing plate (6 c) and a pressing ring (6 d); portal frame (6 a) hangs in first frame (1) top, and hydraulic press (6 b) are installed on portal frame (6 a) and the working end sets up down, and clamp plate (6 c) top and hydraulic press (6 b) output fixed connection, clamp plate (6 c) all around with guide bar (3) clearance fit, clamping ring (6 d) are installed and are agreed with work piece tip shape at clamp plate (6 c) lower extreme and shape, and clamping ring (6 d) and work piece axis collineation under the operating condition.