Welding and clamping tool for outer ring lifter

Abstract

The utility model discloses an outer ring lifter welding and clamping tool which comprises a tool bottom plate, a clamping base plate, a clamping base plate and a clamping base plate. The fixed positioning pin is provided with a first pin piece which is vertical to the horizontal reference surface and is upward; the guide rail is fixed on the horizontal datum plane of the tool bottom plate, a long and straight track is arranged on the guide rail, a first pin piece is located at one end of the long and straight track, a second pin piece which is perpendicular to the horizontal datum plane upwards is arranged on the movable positioning pin, and the movable positioning pin is matched with the track; the clamping assemblies are symmetrically arranged on the two sides of the track, the distance between each clamping assembly and the track is adjustable, each clamping assembly comprises a supporting block and a pressing plate, the pressing plate is located on the supporting block, and the distance between the supporting block and the pressing plate is adjusted through threaded connection. The overall structure is simple and reliable, disassembly and assembly are convenient, the positioning precision is high, and outer ring lifters of various specifications can be matched.

Description

Technical Field

[0001] This application relates to the field of workpiece clamping technology, and in particular to a welding clamping fixture for an outer ring lifter. Background Technology

[0002] In existing technologies, semi-automatic and fully automatic grinding mills mainly consist of components such as a feed chute, feed end, cylinder, discharge end, and discharge port. They use the ore itself or added steel balls as the grinding medium. Through the lifting action of the cylinder liner, the ore undergoes impact and abrasion within the mill, resulting in crushing and fine grinding. A certain amount of water is added simultaneously with the ore fed into the feed chute. The water and the finely ground ore form a slurry within the mill. The slurry passes through the grate plate and / or pebble window at the discharge end and enters the outer ring elevator. As the mill rotates, the outer ring elevator lifts the slurry along with it, passing through the middle ring elevator and the second middle ring elevator, finally exiting the grinding equipment through the discharge port.

[0003] The main components of the discharge end of semi-automatic and fully automatic mills include: end cover, second middle ring elevator, middle ring elevator, cover plate, outer ring elevator, grate plate, and / or rock window. These components typically constitute the so-called discharge device. The discharge device plays a crucial role in the mill's discharge process. Specifically, during forced discharge, the grate plate and / or rock window determine the throughput of the slurry and refractory ores. For the material entering the elevator, the discharge channel formed by the outer ring elevator, middle ring elevator, and second middle ring elevator determines the discharge efficiency.

[0004] Robotic welding clamping fixtures are an indispensable component of automated welding production lines. Their main function is to fix and position the workpieces to be welded, ensuring the accuracy and repeatability of the welding process. The outer ring lifter frame is characterized by its complexity and variety of specifications. Previously, only one fixture could be used for each specification of product, leading to the need to prepare different specifications of fixtures, increasing production and management costs. Summary of the Invention

[0005] This application provides a welding clamping fixture for an outer ring lifter, which solves the technical problem of high production and management costs caused by the large number of specifications of positioning fixtures for outer ring lifters in the prior art.

[0006] An embodiment of this application provides a welding clamping fixture for an outer ring lifter, comprising:

[0007] The tooling base plate provides a horizontal reference surface;

[0008] A fixed positioning pin is fixed to the horizontal reference surface of the tooling base plate and has a first pin that is perpendicular to the horizontal reference surface and faces upward.

[0009] The guide rail and the movable positioning pin are provided. The guide rail is fixed to the horizontal reference surface of the tooling base plate. The guide rail has a long straight track. The first pin is located at one end of the long straight track. The movable positioning pin has a second pin that is perpendicular to the horizontal reference surface and pointing upwards. The movable positioning pin is adapted to the track and can move along the track so that the distance between the first pin and the second pin changes.

[0010] A clamping assembly is fixed to the horizontal reference surface of the tooling base plate. Multiple clamping assemblies are symmetrically arranged on both sides of the track. The distance between each clamping assembly and the track is adjustable. Each clamping assembly includes a support block and a pressure plate. The pressure plate is located on the support block. The distance between the support block and the pressure plate is adjusted by a threaded connection.

[0011] Furthermore, the guide rail includes two parallel and symmetrical guide rail rods with horizontal upper surfaces. The guide rail rods are spliced ​​together on opposite sides to form an inverted T-shaped track groove. The movable positioning pin is housed in the inverted T-shaped track groove, and the second pin protrudes above the upper surface of the guide rail rod.

[0012] Furthermore, the support block has an inclined surface facing one side of the track, the normal of the inclined surface is in the vertical plane, and the angle between the inclined surface and the horizontal reference plane is 10°-15°.

[0013] Furthermore, the pressure plate is located above the inclined plane, the pressure plate is U-shaped, the symmetry plane of the pressure plate is perpendicular to the horizontal reference plane, and the U-shaped opening of the pressure plate faces one side of the track.

[0014] Furthermore, the opening end of the pressure plate is equidistant from the inclined surface relative to the track.

[0015] Furthermore, the clamping assembly includes a bolt, the support block has a bolt hole on the inclined surface, the bolt head is located above the pressure plate and the bolt passes through the middle of the U-shaped hole and engages with the bolt hole.

[0016] Furthermore, a washer is provided on the bolt, the washer being located between the bolt head and the pressure plate, and the outer diameter of the washer being larger than the diameter of the U-shaped hole in the pressure plate.

[0017] Furthermore, a lateral positioning block is fixed on the tooling base plate. The position of the lateral positioning block is adjustable. The lateral positioning block has an abutment surface perpendicular to the horizontal reference plane, and the abutment surface faces the side of the track.

[0018] Furthermore, there are four clamping components, and the lateral positioning block is located between two clamping components on one side.

[0019] Furthermore, the upper ends of the first pin and the second pin are frustoconical surfaces with a taper of 30°-40°.

[0020] Beneficial effects

[0021] This utility model provides a welding and clamping fixture for an outer ring lifter. The fixture achieves initial positioning of the outer ring lifter through the cooperation of a fixed positioning pin and a movable positioning pin, and then locks the outer ring lifter through the clamping of the clamping components. The overall structure is simple and reliable, the fixture is easy to assemble and disassemble, and the lifter has high positioning accuracy. It greatly reduces the loading, unloading and positioning correction time, improves production efficiency, and can match various specifications of outer ring lifters, reducing the number of fixture specifications and saving material and management costs. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a welding clamping fixture for an outer ring lifter according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the usage state of a welding clamping fixture for an outer ring lifter according to an embodiment of this application.

[0025] Figure 3 This is a front view of the welding clamping fixture for an outer ring lifter according to an embodiment of this application, in use.

[0026] The meanings of the various reference numerals in the figure are as follows:

[0027] 1-Guide rail; 2-Fixed positioning pin; 3-Side positioning block; 4-Moving positioning pin; 5-Pressure plate; 6-Support block; 7-Tooling base plate; 8-Bolt 8; 9-Lifter top plate; 10-Positioning hole; 11-Lifter base plate. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] This application provides an outer ring lifter welding clamping fixture for clamping and positioning the outer ring lifter, facilitating welding processes performed by welding robots and other equipment. Since outer ring lifters of different specifications have different dimensions, how to fix outer ring lifters of different specifications on the same clamping fixture is a problem that this embodiment needs to solve.

[0032] like Figure 1 The diagram shown is a structural schematic of a welding clamping fixture for an outer ring lifter provided in an embodiment of this application. The structure of the welding clamping fixture for an outer ring lifter includes:

[0033] The tooling base plate 7 provides a horizontal reference surface for assembling the remaining components with reference to the tooling base plate 7.

[0034] A fixing pin 2 is provided on the tooling base plate 7. The fixing pin 2 is fixed to the horizontal reference surface of the tooling base plate 7 and has a first pin part perpendicular to the horizontal reference surface and pointing upwards. The position of the fixing pin 2 remains unchanged. Since the outer ring lifter has multiple positioning holes 10 along the top plate 9 of the lifter, and the spacing between the positioning holes 10 of different specifications of the outer ring lifter is different, the fixing pin 2 can position one of the positioning holes 10 on the outer ring lifter. Figure 1 As shown, the tooling base plate 7 is generally rectangular or trapezoidal, and the fixing pin 2 is located at the center of one end of the tooling base plate 7 along its length, as shown in the figure. Figure 2 As shown, the positioning hole 10 at one end of the outer ring lifter along its length is placed on the fixed positioning pin 2, thereby achieving the initial positioning of the outer ring lifter.

[0035] like Figure 1 As shown, the tooling base plate 7 is also provided with a guide rail 1 and a movable positioning pin 4. The guide rail 1 is fixed to the horizontal reference surface of the tooling base plate 7. The guide rail 1 has a long straight track. The first pin is located at one end of the long straight track. The movable positioning pin 4 has a second pin that is perpendicular to the horizontal reference surface and pointing upwards. The movable positioning pin 4 is adapted to the track and can move along the track, causing the distance between the first pin and the second pin to change. By changing the position of the movable positioning pin 4, the second pin is aligned with one of the remaining positioning holes 10 in the length direction of the outer ring lifter. Thus, both the first pin and the second pin are pinned into the positioning holes 10 of the outer ring lifter, allowing the outer ring lifter to be positioned along its direction. Regardless of the specifications of the outer ring lifter or how the spacing between the corresponding positioning holes 10 changes, the structure of this embodiment can achieve positioning. In some preferred embodiments, the upper ends of the first pin and the second pin are frustoconical surfaces with a taper of 30°-40°, so that the first pin and the second pin can be easily inserted into the positioning hole 10.

[0036] To further improve the positioning stability of the outer ring lifter in the left-right direction, a clamping assembly is also provided on the tooling base plate 7. The clamping assembly is fixed to the horizontal reference surface of the tooling base plate 7. Multiple clamping assemblies are symmetrically arranged on both sides of the track. The distance between each clamping assembly and the track is adjustable. Each clamping assembly includes a support block 6 and a pressure plate 5. The pressure plate 5 is located on top of the support block 6. The support block 6 and the pressure plate 5 are connected by threads to adjust the distance between them. Figure 2As shown, the left and right sides of the lifter base plate 11 are clamped on the clamping components of the corresponding layer. Specifically, the plate surface of the lifter base plate 11 is clamped between the upper support block 6 and the pressure plate 5, so that the outer ring lifter is also fixed in the left and right directions, and the left and right sides of the outer ring lifter will not tilt in the up and down directions.

[0037] The clamping fixtures described in the above embodiments make the positioning of the outer ring lifter convenient and quick, and can adapt to outer ring lifters of different specifications, thereby reducing the number of clamping fixture models, saving materials and improving management efficiency.

[0038] In some preferred embodiments, the guide rail 1 includes two parallel and symmetrical guide rail rods with horizontal upper surfaces. The guide rail rods are spaced apart and are spliced ​​together on opposite sides to form an inverted T-shaped track arranged along the length of the guide rail 1. The movable positioning pin 4 is accommodated in the inverted T-shaped track groove, and the second pin protrudes above the upper surface of the guide rail rod.

[0039] The horizontal upper surface of the guide rail provides stable support for the base plate 11 of the lifter, which is the basis for ensuring the stability of the outer ring lifter in the horizontal plane. The inverted T-shaped track groove is adapted to the T-shaped movable positioning pin 4, which can securely house the movable positioning pin 4 in the track groove without it coming out. When it is necessary to adjust the position of the movable positioning pin 4, it is only necessary to move the second pin and make the movable positioning pin 4 move on the inverted T-shaped track.

[0040] Because the lifter base plate 11 has a certain curvature perpendicular to its length, and because different specifications of outer ring lifters have different dimensions of the lifter base plate 11, including width and curvature, in order to adapt to different specifications of outer ring lifters, in some preferred embodiments, the support block 6 has an inclined surface facing one side of the track, the normal of the inclined surface is in the vertical plane, and the angle between the inclined surface and the horizontal reference plane is 10°-15°. Figure 1 As shown, the support block 6 has a uniform cross-section perpendicular to the length of the guide rail 1, and the cross-sectional shape is pentagonal. The support block 6 can be obtained by cutting a triangular prism from a cuboid. The direction of the inclined surface of the support block 6 is basically adapted to the bottom plate 11 of the lifter, and the contact point between the bottom plate 11 of the lifter and the inclined surface can be adjusted by adjusting the distance between the inclined surface and the guide rail 1, so that different models of outer ring lifters can be firmly clamped. Generally, for lifter bottom plate 11 with a large curvature, the support block 6 can be moved closer to the guide rail 1; conversely, for lifter bottom plate 11 with a small curvature, the support block 6 can be moved further away from the guide rail 1.

[0041] In some preferred embodiments, the pressure plate 5 is located on the inclined plane, the pressure plate 5 is U-shaped, the plane of symmetry of the pressure plate 5 is perpendicular to the horizontal reference plane, and the U-shaped opening of the pressure plate 5 faces one side of the track. One end of the opening of the pressure plate 5 presses against the bottom plate 11 of the elevator, and the distance between the pressure plate 5 and the support block 6 is adjusted by threads so that the pressure plate 5 can press the bottom plate 11 of the elevator tightly. The bottom plate 11 of the elevator is fixed under the support of the lower support block 6 and the pressure of the upper pressure plate 5.

[0042] In some preferred embodiments, the opening end of the pressure plate 5 is equidistant from the inclined surface relative to the track.

[0043] In some preferred embodiments, such as Figure 1 As shown, the clamping assembly includes a bolt 8. The support block 6 has a bolt hole on the inclined surface. The bolt head of the bolt 8 is located above the pressure plate 5, and the bolt 8 passes through the middle of the U-shaped hole and is connected to the bolt hole. In this way, the locking force of the bolt 8 is evenly distributed in the middle of the clamping assembly, and can be evenly applied to the bottom plate 11 of the lifter, so that the two ends of the U-shape of the pressure plate 5 are evenly applied to the bottom plate 11 of the lifter.

[0044] In some preferred embodiments, a washer is provided on the bolt 8, the washer being located between the bolt head and the pressure plate 5, and the outer diameter of the washer being larger than the diameter of the U-shaped hole in the pressure plate 5. Thus, the bolt head is always positioned above the pressure plate 5, ensuring that the tightness of the pressure plate 5 and the support block 6 can be adjusted at any time.

[0045] In some preferred embodiments, such as Figure 1 As shown, due to the certain gap between the first pin, the second pin, and the positioning hole 10 of the outer ring lifter, in order to accurately position the inner and outer ring lifters, a lateral positioning block 3 is also fixed on the tooling base plate 7. The position of the lateral positioning block 3 is adjustable, and the lateral positioning block 3 has an abutment surface perpendicular to the horizontal reference plane, with the abutment surface facing the side of the track. Figure 2 As shown, the side of the lifter base plate 11 is first attached to the contact surface of the lateral positioning block 3, and then fixed with the clamping assembly, which can more accurately control the positioning of the outer ring lifter.

[0046] In some preferred embodiments, in order to apply force evenly to the outer ring lifter and prevent tilting on the left and right sides, there are four clamping components, namely two on each side of the guide rail 1, and the lateral positioning block 3 is located between the two clamping components on one side.

[0047] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An outer race lifter welding fixture characterized by, The jig base plate provides a horizontal reference plane. The fixed positioning pin is fixed on the horizontal reference plane of the jig base plate and has a first pin element upward perpendicular to the horizontal reference plane. The guide rail is fixed on the horizontal reference plane of the jig base plate and has a long straight track, and the first pin element is located at one end of the long straight track. The moving positioning pin has a second pin element upward perpendicular to the horizontal reference plane, and the moving positioning pin is adapted to the track and can move along the track so that the distance between the first pin element and the second pin element changes. The clamping assembly is fixed on the horizontal reference plane of the jig base plate and has a plurality of and symmetrically arranged on both sides of the track.

2. The outer race lifter welding fixture of claim 1, wherein, Each clamping assembly includes a support block and a pressing plate, and the pressing plate is located above the support block.

3. The outer race lifter welding fixture of claim 1, wherein, The support block and the pressing plate are connected by threads to adjust the distance between them.

4. The outer race lifter welding fixture of claim 3, wherein, The guide rail includes two parallel and symmetric guide rail elements, the upper surfaces of the guide rail elements are horizontal, and the opposite sides of the guide rail elements are spliced to form a reverse T-shaped track slot.

5. The outer race lifter welding fixture of claim 4, wherein, The T-shaped track slot accommodates the moving positioning pin, and the second pin element is exposed above the upper surface of the guide rail element.

6. The outer race lifter welding fixture of claim 4, wherein, The support block has an inclined surface toward one side of the track, the normal of the inclined surface is in the vertical plane, and the included angle between the inclined surface and the horizontal reference plane is 10°-15°.

7. The outer race lifter welding fixture of claim 6, wherein, The pressing plate is located above the inclined surface, the pressing plate is U-shaped, the symmetric plane of the pressing plate is perpendicular to the horizontal reference plane, and the U-shaped opening of the pressing plate faces one side of the track.

8. The outer race lifter welding fixture of claim 1, wherein, The opening end of the pressing plate is equidistant from the track relative to the inclined surface.

9. The outer race lifter welding fixture of claim 8, wherein, The clamping assembly includes a bolt, the support block is provided with a bolt hole on the inclined surface, the bolt head of the bolt is located above the pressing plate, and the bolt passes through the middle of the U-shaped hole and is connected with the bolt hole.

10. The outer race lifter welding fixture of claim 1, wherein, The bolt is provided with a gasket between the bolt head and the pressing plate, and the outer diameter of the gasket is greater than the hole diameter of the U-shaped hole of the pressing plate. The jig base plate is also fixed with a lateral positioning block, the position of the lateral positioning block is adjustable, the lateral positioning block has an abutting surface perpendicular to the horizontal reference plane, and the abutting surface faces one side of the track. The clamping assembly has four clamping assemblies, and the lateral positioning block is located between two clamping assemblies on one side. The upper ends of the first pin element and the second pin element are conical surfaces with a taper of 30°-40°.

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