A shaving bracket

Abstract

The utility model relates to gear processing frock technical field discloses a gear shaving bracket, the gear shaving bracket sets up the mechanical hand to avoid the clearance in the middle part of mounting seat, solves the automatic grabbing interference problem caused by the no giving up structure of traditional bracket, realizes the automatic feeding and discharging of the gear disc to be shaved, and the production automation level is improved obviously, positioning block and mounting seat adopt front and back sliding connection, and the position can be adjusted flexibly with cooperation first locking assembly, can adapt to different specifications gear disc to be shaved, greatly reduces the special frock investment, shortens the production change time, avoids the frock consistency problem caused by the design difference of traditional bracket simultaneously, guarantees the machining precision stability, and the whole structure is simple, practical, and the automation production and multi -specification adaptation demand are taken into account.

Description

Technical Field

[0001] This utility model relates to the field of gear processing tooling technology, specifically to a gear shaving bracket. Background Technology

[0002] Gear shaving is a crucial process in gear finishing. It involves the generating motion and relative sliding between the shaving cutter and the gear being machined to cut the gear teeth, effectively improving tooth profile accuracy, tooth direction accuracy, and surface roughness. This significantly enhances the smoothness and reliability of gear transmissions, and is widely used in mass production of gears in the automotive, machine tool, and construction machinery industries. During gear shaving, the shaving bracket serves as the core tooling fixture, used for positioning and clamping the gear being machined. Its structural rationality directly affects the gear machining accuracy, machining efficiency, and the level of production automation, making it a key component ensuring the stable implementation of the gear shaving process.

[0003] However, existing shaving brackets have many technical defects in practical applications, making it difficult to meet the needs of modern mass production: on the one hand, the traditional bracket structure does not take into account the clearance requirements when the robot grips the parts, resulting in interference when the robot grips the parts, making it impossible to achieve automated loading and unloading, which seriously restricts the automation upgrade of the production line; on the other hand, the traditional bracket has poor versatility. When there are differences in the outer diameter and thickness of the gear being processed, a completely new bracket needs to be redesigned and manufactured to adapt to the parts. This not only makes the changeover operation cumbersome and time-consuming, but also increases the cost of tooling investment. Utility Model Content

[0004] The present invention aims to provide a shaving bracket to solve the problems of insufficient clearance when the robot arm grasps the tooth during the shaving process, which makes automation difficult, has poor versatility, and is complicated to changeover.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a shaving bracket, including a mounting base, a robotic arm clearance opening in the middle of the mounting base, positioning components symmetrically arranged at the left and right ends of the robotic arm clearance on the mounting base, the positioning components including positioning blocks slidably connected to the mounting base in a front-back direction, and stops arranged on the front and rear sides of the positioning blocks, a first locking component for fixing the positioning blocks is arranged between the side stops and the positioning blocks; the left and right end positioning blocks are arranged in an arc-shaped plate shape facing each other, for mounting the gear disk to be shaving, the front and rear side stops of the positioning blocks are used to prevent the gear disk to be shaving from falling off; a second locking component is arranged between the positioning components and the mounting base.

[0006] The beneficial effects of this solution are as follows: By creating a clearance gap for the robotic arm in the middle of the mounting base, the problem of traditional shaving brackets lacking a robotic arm clearance structure and causing interference with automated grasping is precisely solved, enabling automatic loading and unloading of the gear discs to be shaving by the robotic arm and improving the level of production automation. Traditional brackets lack a unified standardized design scheme. Every time a new specification part is adapted, the designer needs to redesign the structure, which not only consumes a lot of design time, but also easily leads to poor tooling consistency due to design differences, affecting the stability of machining accuracy. However, the positioning block is slidably connected to the mounting base in the front and rear directions. With the help of the first locking component, the position of the positioning block can be adjusted to adapt to the installation requirements of different specifications of gear discs to be shaving, greatly improving the versatility of the bracket and reducing the investment in special tooling.

[0007] Furthermore, the left and right positioning blocks have an arc-shaped plate structure facing each other, which fits the outer circle contour of the gear disk to be shaved, ensuring precise positioning. The front and rear side blocks can not only prevent the gear disk to be shaved from falling off during processing, but also help limit the displacement of the parts. Together with the second locking component, the positioning component is fixed, effectively resisting the radial force during shaving, preventing the parts from rotating or shifting relative to the bracket, and ensuring processing accuracy.

[0008] Preferably, as an improvement, the mounting base is symmetrically provided with slide rails on the left and right sides, the slide rails are arranged in the front and back direction, the positioning block has a groove for the slide rails to be inserted, and the cross-sectional shape of the slide rails and the grooves are both dovetail-shaped, with the two dovetails facing away from each other.

[0009] The beneficial effects are as follows: the slide rail and the slide groove are shaped to match and slide, which has high guiding accuracy and tight fit. The dovetails of the dovetail connection structure at both ends are set opposite to each other. The dovetail connection structure has a strong load-bearing capacity and can effectively withstand the circumferential force generated by the shaving process, which improves the connection stability of the positioning components, prevents loosening after long-term use, and extends the service life of the bracket.

[0010] Preferably, as an improvement, the mounting base is provided with protrusions at both ends, and the end of the positioning block is provided with a groove for the protrusions to be inserted.

[0011] The beneficial effects are as follows: the mating surfaces of the protrusion and the groove can share the force, reduce the load-bearing pressure of the dovetail connection structure, prevent the positioning block from deforming or displacing under force, and enhance the stability of the overall structure; during assembly, it plays a guiding and positioning role, making it easy to quickly install the positioning block to the preset position and improve assembly efficiency.

[0012] Preferably, as an improvement, the second locking assembly includes a first screw that is horizontally threaded to the protrusion and a second screw that is vertically threaded to the mounting base. The first screw penetrates the protrusion and corresponds to the groove, and the second screw penetrates the mounting base and corresponds to the bottom end of the positioning block near the groove.

[0013] The beneficial effects are as follows: the first screw and the second screw form a bidirectional lock, which restricts the displacement of the positioning block from both the side and the bottom. The squeezing force of the first screw and the second screw on the positioning block is combined into an inclined squeezing force. The inclined squeezing force eventually presses the inner wall of the dovetail groove of the positioning block tightly against the dovetail slide rail, so that the positioning blocks at the left and right ends have opposing forces, thereby further resisting the circumferential force generated by the gear disk to be shaved during processing, completely avoiding the positioning block from loosening or shifting, and ensuring positioning reliability.

[0014] Preferably, as an improvement, the positioning block has a plurality of first positioning holes, and the first locking component includes a plurality of second positioning holes formed in the stop block, bolts connected to the first and second positioning holes, and nuts connected to the bolts. The bolts pass through the stop block and the positioning block, and the bolt length is greater than the sum of the thickness of the positioning block and the front and rear stop blocks.

[0015] The beneficial effects are: for gear discs of different thicknesses to be shaved, the spacing between the front and rear stops of the positioning block can be adjusted to adapt to the desired thickness, or several layers of pads can be stacked to achieve this purpose.

[0016] Preferably, as an improvement, the left and right end blocks are also arranged in an arc-shaped plate shape facing each other. The arc-shaped plate of the block and the arc-shaped plate of the positioning block share the same curvature center. The curvature radius of the arc-shaped plate of the block is smaller than that of the arc-shaped plate of the positioning block. An installation groove for the gear disc to be shaved is formed between the positioning block and the front and rear end blocks.

[0017] The beneficial effects are as follows: the arc-shaped plate of the stop block and the arc-shaped plate of the positioning block share the same center of curvature, and the radius of curvature of the arc-shaped plate of the stop block is smaller than that of the positioning block. Together with the positioning block, they form an annular mounting groove, which provides all-round wrapping and limiting of the parts, effectively resisting the circumferential and radial forces during shaving, preventing the parts from rotating or falling off, and improving the stability of processing.

[0018] Preferably, as an improvement, a pad is provided between the positioning block and at least one of the front and rear side stops, the pad being used to create a burr-free gap between the positioning block and the stop.

[0019] The beneficial effects are: it can accommodate the burrs generated on the gear disc to be shaved during the shaving process, and then clean them in a concentrated manner after the overall processing is completed, reducing the workload and improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic cross-sectional view of the overall structure of the gear disc to be shaved mounted on the bracket in an embodiment of this utility model; Figure 2 This is a top view of the overall structure of the gear disc to be shaved mounted on the bracket according to an embodiment of the present utility model; Figure 3 This is a partial structural side view of the gear disc to be shaved mounted on the bracket according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the gear disk to be shaved according to an embodiment of the present invention. Detailed Implementation

[0021] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: mounting base 1, clearance 11, slide rail 12, protrusion 13, positioning component 2, positioning block 21, slide groove 211, groove 212, first positioning hole 213, stop block 22, first locking component 221, bolt 2211, nut 2212, second locking component 23, first screw 231, second screw 232, mounting groove 24, pad 25, burr clearance 26, gear disc to be shaved 3.

[0022] Example like Figures 1-3 The shaving bracket shown includes a mounting base 1, with a robotic arm clearance 11 in the middle of the mounting base 1. Protrusions 13 are provided at both ends of the mounting base 1. Slide rails 12 are fixedly mounted on the mounting base 1 at both ends of the robotic arm clearance 11. The slide rails 12 are arranged in a front-to-back direction and have a dovetail-shaped cross-section with the two dovetails facing away from each other. The slide rails 12 are located between the robotic arm clearance 11 and the protrusions 13. Positioning components 2 are symmetrically arranged on the mounting base 1 at both ends of the robotic arm clearance 11. The positioning component 2 includes a positioning block 21 that is slidably connected to the mounting base 1 in the front and rear directions. The positioning block 21 has a groove 211 for the slide rail 12 to be inserted. The cross-sectional shape of the groove 211 is also dovetail-shaped and the same size as the slide rail 12. The end of the positioning block 21 also has a groove 212 for the protrusion 13 to be inserted. The positioning block 21 has a plurality of first positioning holes 213. The positioning component 2 also includes a stop block 22 disposed on the front and rear sides of the positioning block 21. The bottom side of the end of the stop block 22 also has a groove for the protrusion 13 to be inserted.

[0023] like Figures 1-4 As shown, the side of the positioning components 2 facing the positioning block 21 is arranged in an arc-shaped plate shape, and the side facing the stop block 22 is also arranged in an arc-shaped plate shape. The arc-shaped plate of the stop block 22 and the arc-shaped plate of the positioning block 21 share the same center of curvature. The radius of curvature of the arc-shaped plate of the stop block 22 is smaller than that of the arc-shaped plate of the positioning block 21. Therefore, the arc-shaped plate part of the stop block 22 is higher than the arc-shaped plate part of the positioning block 21. An annular mounting groove 24 is formed between the positioning block 21 and the front and rear side stop blocks 22, into which the gear disk 3 to be shaved is embedded. The mounting groove 24 is used to install the gear disk 3 to be shaved. The arc surface at the top of the positioning block 21 is used to abut against the outer circular surface of the gear disk 3 to be shaved. The stop blocks 22 on both sides of the positioning block 21 are used to cover the gear disk 3 to be shaved to prevent it from falling or being misaligned.

[0024] like Figures 1-2As shown, a first locking component 221 for fixing the positioning block 21 is provided between the two side blocks 22 and the positioning block 21. The first locking component 221 includes a plurality of second positioning holes opened in the block 22, bolts 2211 connected to the first and second positioning holes, and nuts 2212 connected to the bolts 2211. The bolts 2211 pass through the block 22 and the positioning block 21, and the length of the bolts 2211 is greater than the sum of the thicknesses of the positioning block 21 and the front and rear side blocks 22. A second locking component is provided between the positioning component 2 and the mounting base 1. 23. The second locking assembly 23 includes a first screw 231 that is horizontally threaded to the protrusion 13 and a second screw 232 that is vertically threaded to the mounting base 1. The first screw 231 penetrates the protrusion 13 and corresponds to the groove 212. The second screw 232 penetrates the mounting base 1 and corresponds to the bottom end of the positioning block 21 near the groove 212. A pad 25 is provided between the positioning block 21 and at least one of the front and rear side stops 22. The pad 25 is used to form a burr gap 26 between the positioning block 21 and the stop 22.

[0025] The specific implementation process is as follows: Select appropriate positioning blocks 21 and stop blocks 22 according to the size of the gear disk to be shaved. Slide the positioning block 21 onto the mounting base 1. Adjust the distance between the stop blocks 22 on both sides of the positioning block 21 according to the thickness of the gear disk 3 to be shaved, so that the outer circular surface of the gear disk 3 to be shaved is in close contact with the arc surface of the positioning block 21. According to the thickness of the gear disk 3 to be shaved, select the appropriate first positioning hole 213 on the positioning block 21 and the corresponding second positioning hole on the stop block 22. After the bolt 2211 passes through the set of positioning holes, lock it with the nut 2212 to realize the graded adjustment of the distance between the stop blocks 22. If fine adjustment is required, a shim 25 can be added between the positioning block 21 and the stop block 22. Then install the first screw 231 and the second screw 232, respectively, against the corresponding positions of the positioning block 21, so that the sliding groove 211 of the positioning block 21 is tightly against the slide rail 12, thereby installing the gear disk 3 to be shaved onto the bracket.

[0026] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A shaving bracket, characterized in that: Includes a mounting base, with a clearance for the robotic arm in the middle of the mounting base. Positioning components are symmetrically arranged at the left and right ends of the clearance for the robotic arm on the mounting base. The positioning components include a positioning block that is slidably connected to the mounting base in a forward and backward direction, and stops on the front and rear sides of the positioning block. A first locking component for fixing the positioning block is provided between the side stops and the positioning block. The positioning blocks at both ends are arranged in an arc-shaped plate facing each other to install the gear disk to be shaved. The front and rear side stops of the positioning blocks are used to prevent the gear disk to be shaved from falling off. A second locking component is provided between the positioning component and the mounting base.

2. The shaving bracket according to claim 1, characterized in that: The mounting base has symmetrical slide rails on both the left and right sides, and the slide rails are arranged in the front and back direction. The positioning block has a groove for the slide rails to be inserted. The cross-sectional shape of both the slide rails and the grooves is dovetail-shaped, and the two dovetails are arranged opposite to each other.

3. The shaving bracket according to claim 2, characterized in that: The mounting base has protrusions at both ends, and the end of the positioning block has a groove for the protrusions to be inserted.

4. The shaving bracket according to claim 3, characterized in that: The second locking assembly includes a first screw that is horizontally threaded to the protrusion and a second screw that is vertically threaded to the mounting base. The first screw penetrates the protrusion and corresponds to the groove, and the second screw penetrates the mounting base and corresponds to the bottom end of the positioning block near the groove.

5. The shaving bracket according to claim 1, characterized in that: The positioning block has a number of first positioning holes. The first locking component includes a number of second positioning holes in the stop block, bolts connected to the first and second positioning holes, and nuts connected to the bolts. The bolts pass through the stop block and the positioning block, and the bolt length is greater than the sum of the thickness of the positioning block and the front and rear stop blocks.

6. The shaving bracket according to claim 1, characterized in that: The left and right end blocks are also set in an arc-shaped plate facing each other. The arc-shaped plate of the block and the arc-shaped plate of the positioning block share the same curvature center. The curvature radius of the arc-shaped plate of the block is smaller than that of the arc-shaped plate of the positioning block. An installation groove for the gear disc to be shaved is formed between the positioning block and the front and rear end blocks.

7. The shaving bracket according to claim 1, characterized in that: A pad is provided between the positioning block and at least one of the front and rear side stops, the pad being used to create a burr-free gap between the positioning block and the stop.

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