Positioning and clamping tool for machining upper edge of machine tail movable part and machining method for upper edge of machine tail movable part

Abstract

A positioning and clamping tool for the upper edge of a machine tail movable part comprises a bottom plate, a jacking part and an end face positioning block. A side protection plate is vertically arranged on the bottom plate, an adsorption disc is installed on the side protection plate, the end positioning block is arranged at one end of the bottom plate, so that the side protection plate and the end positioning block form an L shape, the jacking parts are evenly distributed in the transverse extending direction of the side protection plate, each jacking part can independently ascend and descend, and each jacking part sequentially ascends in an echelon mode from one side of the end positioning block. The invention further provides a machine tail movable upper edge machining method. The jacking part is used for supporting the upper edge of the to-be-machined movable part, the arc of the upper edge of the to-be-machined movable part is matched with the arc formed by the jacking part, the upper edge of the to-be-machined movable part is adsorbed and fixed through the adsorption disc, and it is guaranteed that a workpiece cannot move in the cutting process; by means of supporting of the jacking part and matching of positioning and adsorption of the adsorption disc, the problem of machining reference is solved, the machining precision of holes is ensured, the size of an operation gap of the scraper is ensured, and the situation that the scraper is scraped and clamped is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of scraper conveyors, and in particular to a positioning clamping tool for processing a live upper edge of a machine tail and a method for processing the live upper edge of a machine tail. Background Art

[0002] The movable upper edge at the tail is an important part of the telescopic tail of the scraper conveyor. It is responsible for controlling and changing the running trajectory of the scraper chain. Since its position is exactly where the scraper chain is lifted, the scraper rubs against it and wears faster than other parts. In order to enable quick replacement and better ensure the engagement between the scraper chain and the sprocket, the movable upper edge at the tail is designed to be detachable.

[0003] The upper edge of the tail is a combination of multiple arcs or a large-diameter arc structure, and the reference plane is small. When machining the connection holes and pin holes, there is no sufficient reference surface available, so the holes and the holes of the tail frame cannot be aligned and assembled during the machining process. The corresponding scraper chain running clearance and running trajectory cannot achieve the design intention, resulting in the smoothness of the scraper chain and sprocket meshing being affected, aggravating the wear of the scraper, and even worse, causing the scraper to be unable to pass and cause scraper jam. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned technology, it is necessary to provide a positioning clamping tool for the upper edge of the tail of a processing machine.

[0005] A positioning and clamping tool for the upper edge of the tail of a processing machine, comprising a base plate, a lifting part, and an end face positioning block; a side guard plate is vertically arranged on the base plate, an adsorption disk is installed on the side guard plate, the end positioning block is arranged at one end of the base plate, so that the side guard plate and the end positioning block form an L shape, the lifting parts are evenly distributed along the lateral extension direction of the side guard plate, each lifting part can be lifted up and down independently, and each lifting part rises in steps starting from one side of the end positioning block.

[0006] Preferably, there are three lifting parts, and the adsorption plate is located between two adjacent lifting parts.

[0007] Preferably, the lifting part comprises a lifting block and a telescopic rod; the telescopic rod is arranged on the bottom plate, and the lifting block is installed on the top of the telescopic rod.

[0008] Preferably, the telescopic rod is supplied with oil through a hydraulic oil station.

[0009] Preferably, the telescopic rod and the adsorption plate are controlled by an electric control cabinet.

[0010] It is also necessary to provide a method for processing the upper edge of the tail of a machine.

[0011] A method for processing the upper edge of a machine tail, using the positioning and clamping tooling for processing the upper edge of a machine tail to process the upper edge of the machine tail, comprises the following steps: Step S1: installing the positioning clamping fixture on the workbench of the CNC boring and milling machine; Step S2: adjusting each lifting part to a preset height so that each lifting part is raised in sequence; the arc shape formed by the lifting part as a whole is adapted to the arc of the upper edge to be processed; Step S3: lift the active upper edge to be processed and place it on the upper end of the jacking part, with the positioning end face of the active upper edge close to the end face positioning block, and push the active upper edge by hand to close to the suction plate on the side guard plate, and rely on the suction plate to suck the active upper edge to be processed; Step S4: tool alignment is performed, the tool simulates the tool path on the workpiece surface, draws a live arc line on the end face of the active upper edge, and verifies the arc conformity and the amount of processing; if the processing allowance is uniform, the arc surface of the active upper edge to be processed is processed; if the processing allowance is greatly different, the workpiece needs to be removed, and the arc of the active upper edge needs to be corrected again, and then the processing is performed after the correction is completed; Step S5: The tool finds the positioning zero point (the upper end face and side face of the end face positioning block), and processes the connecting hole, the pin hole, and the upper top face of the upper edge to be processed.

[0012] Step S6: After the processing is completed, disconnect the suction plate to separate the suction plate from the active upper edge, lift the processed active upper edge, and replace it with a workpiece to be processed.

[0013] Preferably, in step S1, when installing the positioning and clamping fixture, it is necessary to perform a leveling check on the bottom plate to ensure that the bottom plate is level; and perform a leveling check on the end surface of the adsorption plate.

[0014] Preferably, in step S3, before placing the active upper edge to be processed on the upper end of the lifting part, it is necessary to first process the surface of one side of the active upper edge to be processed that is in contact with the side surface of the tail to be processed to make it smooth.

[0015] Preferably, in step S2, the height of each lifting portion is calculated based on different upper edge arc sizes.

[0016] Compared with the prior art, the positioning and clamping tooling for processing the movable upper edge of the tail of the machine and the processing method of the movable upper edge of the tail of the machine provided by the present invention adopt a lifting part to form a support for the movable upper edge to be processed, so that the arc of the movable upper edge to be processed is adapted to the arc formed by the lifting part, and the movable upper edge to be processed is adsorbed and fixed by an adsorption disk to ensure that the workpiece will not move during the cutting process; relying on the support of the lifting part and the positioning and adsorption of the adsorption disk, the problem of processing benchmark is solved, the processing accuracy of the hole is ensured, the running clearance size of the scraper is ensured, and the scraper is avoided from being stuck. The present invention replaces the processing method of drilling with a circular arc template, realizes the rapid and effective clamping of the workpiece, achieves efficient processing, and saves processing costs. Only positioning and clamping in sequence are required to complete the processing of the plane, connecting hole, and pin hole, which greatly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of the structure from another angle.

[0020] Figure 3 This is a schematic diagram of the structure after the movable upper edge is installed in the present invention.

[0021] Figure 4 For the present invention Figure 4 Schematic diagram of the structure from another angle.

[0022] In the figure: bottom plate 01, lifting part 02, lifting block 21, telescopic rod 22, end surface positioning block 03, side guard plate 04, adsorption plate 05, hydraulic oil station 06, electric control cabinet 07, movable upper edge 08. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] Please see Figures 1 to 4 In one embodiment, the present invention provides a positioning clamping tool for the upper edge of the tail of a processing machine, comprising a bottom plate 01, a lifting part 02, and an end face positioning block 03; a side guard plate 04 is vertically arranged on the bottom plate 01, and an adsorption disk 05 is installed on the side guard plate 04, and the adsorption disk 05 can be an electric permanent magnetic suction cup. The end positioning block is arranged at one end of the bottom plate 01, so that the side guard plate 04 and the end positioning block form an L shape, and the lifting parts 02 are evenly distributed along the lateral extension direction of the side guard plate 04, and each lifting part 02 can be raised and lowered independently, and each lifting part 02 is raised in a step-by-step manner starting from one side of the end positioning block.

[0026] There are three lifting parts 02 , and the suction plate 05 is located between two adjacent lifting parts 02 .

[0027] The lifting part 02 includes a lifting block 21 and a telescopic rod 22; the telescopic rod 22 is arranged on the bottom plate 01, and the lifting block 21 is installed on the top of the telescopic rod 22. The telescopic rod 22 can adopt a hydraulic cylinder. Of course, the telescopic rod 22 can be supplied with oil through the hydraulic oil station 06.

[0028] Specifically, the lifting block 21 is a T-shaped structure as a whole, and the lifting block 21 and the end of the telescopic rod 22 are installed in a detachable connection manner, such as a threaded connection. Different lifting blocks 21 are used to support the active upper edge of different width ranges. Secondly, the lifting block 21 will be worn during use, so it can be replaced at any time according to the use situation.

[0029] In addition, the telescopic rod 22 and the adsorption plate 05 can be controlled by the electric control cabinet 07. The electric control cabinet can be a PLC control cabinet.

[0030] In one embodiment, the present invention provides a method for machining the upper edge of a machine tail, using the positioning and clamping tooling for machining the upper edge of the machine tail to process the upper edge of the machine tail, including the following steps: Step S1: installing the positioning clamping fixture on the workbench of the CNC boring and milling machine; Step S2: adjusting each lifting part 02 to a preset height, so that each lifting part 02 is raised in sequence; the arc shape formed by the lifting part 02 as a whole is adapted to the arc of the upper edge to be processed; Step S3: lift the active upper edge to be processed and place it on the upper end of the lifting part 02, with the positioning end face of the active upper edge close to the end face positioning block 03, and push the active upper edge by hand to close to the suction plate 05 on the side guard plate 04, and rely on the suction plate 05 to suck the active upper edge to be processed; Step S4: tool alignment is performed, the tool simulates the tool path on the workpiece surface, draws a live arc line on the end face of the active upper edge, and verifies the arc conformity and the amount of processing; if the processing allowance is uniform, the arc surface of the active upper edge to be processed is processed; if the processing allowance is greatly different, the workpiece needs to be removed, and the arc of the active upper edge needs to be corrected again, and then the processing is performed after the correction is completed; Step S5: The tool finds the positioning zero point (the upper end face and side face of the end face positioning block 03), and processes the connecting hole, the pin hole, and the upper top face of the upper edge to be processed.

[0031] Step S6: After the processing is completed, disconnect the suction plate 05, separate the suction plate 05 from the active upper edge, lift the processed active upper edge, and replace it with a workpiece to be processed.

[0032] Specifically, in step S1 , when installing the positioning and clamping fixture, it is necessary to perform a leveling check on the base plate 01 to ensure that the base plate 01 is horizontal; and to perform a leveling check on the end surface of the suction plate 05 .

[0033] Specifically, in step S3, before placing the live upper edge to be processed on the upper end of the lifting part 02, it is necessary to first process the surface of the live upper edge to be processed that is in contact with the side surface of the tail to be processed to make it smooth.

[0034] Specifically, in step S2, the height of each lifting portion 02 is calculated based on the sizes of different upper edge arcs.

[0035] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A positioning clamping tool for the upper edge of the tail of a processing machine, characterized in that: It includes a bottom plate, a lifting part, and an end face positioning block; a side guard plate is vertically arranged on the bottom plate, an adsorption plate is installed on the side guard plate, and the end positioning block is arranged at one end of the bottom plate so that the side guard plate and the end positioning block form an L shape, and the lifting parts are evenly distributed along the lateral extension direction of the side guard plate, each lifting part can be lifted up and down independently, and each lifting part rises in steps starting from one side of the end positioning block.

2. The positioning and clamping tool for the upper edge of the tail of a processing machine according to claim 1 is characterized in that: There are three lifting parts, and the adsorption plate is located between two adjacent lifting parts.

3. The positioning and clamping tool for the upper edge of the tail of a processing machine according to claim 2 is characterized in that: The lifting part comprises a lifting block and a telescopic rod; the telescopic rod is arranged on a bottom plate, and the lifting block is installed on the top of the telescopic rod.

4. The positioning and clamping tool for the upper edge of the tail of a processing machine according to claim 3 is characterized in that: The telescopic rod is supplied with oil through a hydraulic oil station.

5. The positioning and clamping tool for the upper edge of the tail of a processing machine according to claim 4 is characterized in that: The telescopic rod and the adsorption plate are controlled by an electric control cabinet.

6. A method for machining the upper edge of a machine tail, using the positioning and clamping tool for machining the upper edge of a machine tail as claimed in any one of claims 1 to 5, characterized in that: The following steps are included: Step S1: installing the positioning clamping fixture on the workbench of the CNC boring and milling machine; Step S2: adjusting each lifting part to a preset height so that each lifting part is raised in sequence; the arc shape formed by the lifting part as a whole is adapted to the arc of the upper edge to be processed; Step S3: lift the active upper edge to be processed and place it on the upper end of the jacking part, with the positioning end face of the active upper edge close to the end face positioning block, and push the active upper edge by hand to close to the suction plate on the side guard plate, and rely on the suction plate to suck the active upper edge to be processed; Step S4: tool alignment is performed, the tool simulates the tool path on the workpiece surface, draws a live arc line on the end face of the active upper edge, and verifies the arc conformity and the amount of processing; if the processing allowance is uniform, the arc surface of the active upper edge to be processed is processed; if the processing allowance is greatly different, the workpiece needs to be removed, and the arc of the active upper edge needs to be corrected again, and then the processing is performed after the correction is completed; Step S5: The tool finds the positioning zero point (the upper end face and side face of the end face positioning block), and processes the connecting hole, the pin hole, and the upper top face of the upper edge to be processed; Step S6: After the processing is completed, disconnect the suction plate to separate the suction plate from the active upper edge, lift the processed active upper edge, and replace it with a workpiece to be processed.

7. The method for processing the movable upper edge of the tail of the machine according to claim 6, characterized in that: In step S1, when installing the positioning and clamping fixture, it is necessary to perform a leveling check on the bottom plate to ensure that the bottom plate is level; and to perform a leveling check on the end surface of the suction plate.

8. The method for processing the movable upper edge of the tail of the machine according to claim 6, characterized in that: In step S3, before placing the active upper edge to be processed on the upper end of the lifting part, it is necessary to first process the surface of the active upper edge to be processed which is in contact with the side surface of the tail to be processed to make it smooth.

9. The method for processing the upper edge of the tail of the machine according to claim 6, characterized in that: In step S2, the height of each lifting portion is calculated based on the sizes of different upper edge arcs.

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