Clamping and positioning tool for precision machining of metal products

Abstract

The invention relates to the technical field of clamping and positioning, in particular to a clamping and positioning tool for precision machining of metal products, which comprises a machining table, a telescopic column mounted at the upper end of the machining table and a rotary positioning table fixedly mounted at the upper end of the telescopic column. A plurality of positioning pieces are annularly arrayed in the mounting groove; the positioning piece comprises an outer pipe, an iron core column, a sealing block, an electrified spiral pipe and a supporting spring, the outer pipe is vertically and fixedly connected to the interior of the mounting groove, the supporting spring is fixedly mounted at the bottom of the outer pipe, the sealing block is fixedly connected to the upper end of the supporting spring, and the iron core column is vertically and fixedly connected to the sealing block; the electrified spiral pipe is arranged on the iron core column in a sleeving mode, and the bottom end of the electrified spiral pipe is fixedly connected to the sealing block. According to the device, the metal products can be rapidly placed, readjustment is not needed, and the applicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of clamping and positioning, and in particular to a clamping and positioning tool for precision machining of metal products. Background Art

[0002] In the precision machining of metal products, the clamping and positioning tooling is the bridge connecting the workpiece and the processing equipment. Its core task is to ensure that the workpiece is always in the predetermined position during the machining process and resist external interference such as cutting force and vibration.

[0003] The patent with publication number CN218081549U discloses a positioning tool for metal products, including a workbench, on which a rotating plate is rotatably installed, a rotating component for driving the rotating plate to rotate is installed at the lower end of the workbench, a pair of positioning components for clamping plate-shaped metal products are fixedly installed at the upper edge of the rotating plate, and a plurality of lifting grooves are distributed on the upper surface of the rotating plate, and lifting components for rolling support of the plate-shaped metal products are fixedly installed in the lifting grooves.

[0004] However, since metal products of different shapes require different clamping and positioning positions, the positioning base is disassembled and replaced according to the shape of the metal product, which reduces the processing efficiency when processing different precision metal products. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the positioning base is disassembled and replaced according to the shape of the metal product in the prior art, which reduces the processing efficiency when processing different precision metal products, and to propose a clamping and positioning tool for precision processing of metal products.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A clamping and positioning tool for precision machining of metal products, comprising: a machining table, a telescopic column mounted on the upper end of the machining table, and a rotating positioning table fixedly mounted on the upper end of the telescopic column, wherein a mounting groove is provided in the middle of the rotating positioning table, and a plurality of positioning members are arranged in a circular array inside the mounting groove; The positioning member includes an outer tube, an iron core column, a sealing block, an energized spiral tube and a supporting spring. The outer tube is vertically fixedly connected inside the mounting groove, the supporting spring is fixedly installed at the bottom of the outer tube, the sealing block is fixedly connected to the upper end of the supporting spring, the iron core column is vertically fixedly connected to the sealing block, and the sealing slide is arranged at the upper end opening of the outer tube, the energized spiral tube is sleeved on the iron core column, and the bottom end is fixedly connected to the sealing block; A sliding groove is arranged inside the bottom end of the core column, and a positioning component is arranged inside the sliding groove. The positioning component is used to fix the position of the core column when the energized spiral tube is energized.

[0007] Preferably, placement openings are symmetrically provided on both sides of the rotating positioning platform, a plurality of slide rails are annularly provided on the side of the processing platform, the slide rails are vertically provided, and clamping components are provided on the slide rails.

[0008] Preferably, the clamping assembly includes a driving block, a rotating seat, a side frame, two telescopic rods and a mounting slide block, the driving block is arranged inside the slide rail, the rotating seat is fixedly installed on the side of the driving block, the side frame is fixedly connected to the rotating end of the rotating seat, a slide groove is arranged inside the side frame, the two telescopic rods are symmetrically fixedly installed inside the slide groove, and the mounting slide block is fixedly connected to the end of the telescopic rod and is slidably arranged inside the slide groove.

[0009] Preferably, the mounting slide block is provided with a mounting groove, and the mounting groove is used to install and place clamping members of different specifications.

[0010] Preferably, an air guide cavity is opened at the bottom of the rotating positioning platform, the bottom of the outer tube is connected to the air guide cavity, a plurality of sliding openings are opened on the side of the air guide cavity, a plurality of limit assemblies are respectively arranged inside the plurality of sliding openings, and the limit assemblies are used to limit the position of the drive block inside the slide rail.

[0011] Preferably, the limit assembly includes a limit block, two stretching plates and a limit groove, the two stretching plates are symmetrically arranged on the upper and lower sides of the limit block, and the limit slide is arranged inside the slide, and the limit groove is opened at the bottom of the side of the driving block away from the rotating seat.

[0012] Preferably, the positioning assembly includes a magnetic block, a sealing column and a plurality of positioning members, the magnetic block is fixedly connected to the bottom end of the sealing column, the sealing column is sealingly slidably arranged inside a sliding groove, a plurality of positioning grooves are opened on the side of the top end of the sliding groove, and a plurality of the positioning members are arranged inside the positioning groove.

[0013] Preferably, the positioning member comprises a positioning block and an elastic sheet, and the elastic sheet is fixedly connected to the end of the positioning block and to the inner side of the positioning groove.

[0014] Preferably, the positioning block is made of metal material, the elastic sheet seals the notch at the inner end of the positioning groove, and extrusion gas is provided inside the sliding groove for extruding the elastic sheet.

[0015] Preferably, an elastic cover is arranged on the outer side of the installation groove, and the upper end of the elastic cover is arranged in an inverted frustum shape.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting the processing surface of the metal product upward and making the bottom surface contact with the support, the support spring inside the support will be compressed and deformed to adapt to the shape of different metal parts. During the processing, the power is supplied to the inside of the power-supply spiral tube, so that the upper end of the core column generates magnetism, and the entire metal product is fixed by magnetic attraction, thereby improving the fixing speed of the metal product; 2. When the metal product to be processed is replaced, it is only necessary to change the current inside the energized solenoid. While reducing the magnetism, the shape of the support is ensured while the metal product is taken, so that the metal product can be quickly placed without readjustment, which improves the applicability of the device; 3. According to the material and shape of the metal product to be finely processed, the rotating positioning table is controlled to rotate, so that the required placement openings on both sides are transferred to the position of the clamping parts to be used, and the metal product placed in the middle is clamped and limited by the clamping parts inside the two symmetrically arranged installation grooves, so that the clamping parts can be quickly replaced without manual disassembly; 4. When the metal product is placed on multiple supports, due to the effect of gravity, the iron core column drives the sealing block to slide inside the outer tube, thereby pressing the gas at the bottom of the outer tube into the air guide cavity, and the limit block slides out from the sliding mouth. The limit block is stuck in the limit groove of the driving block, thereby completing the limit reinforcement of the driving block, avoiding the sliding deviation of the driving block due to vibration, and ensuring the stable clamping of the metal product during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front structure of a clamping and positioning tool for precision machining of metal products proposed by the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of a processing table for a clamping and positioning tool for precision machining of metal products proposed by the present invention; Figure 3 This is a schematic diagram of the unfolded structure of a clamping assembly for clamping and positioning tooling for precision machining of metal products proposed by the present invention; Figure 4 This is a schematic diagram of the structure of a clamping assembly for clamping and positioning tooling for precision machining of metal products proposed by the present invention; Figure 5 This is a schematic diagram of the support structure of a clamping and positioning tool for precision machining of metal products proposed by the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of a support member for a clamping and positioning tool for precision machining of metal products proposed by the present invention; Figure 7 This is a schematic diagram of the structure of a limit assembly for a clamping and positioning tool for precision machining of metal products proposed by the present invention; Figure 8 The present invention is a schematic diagram of a positioning member structure for a clamping and positioning tool for precision machining of metal products.

[0018] In the figure: 1. processing table; 2. rotating positioning table; 3. supporting member; 31. outer tube; 32. core column; 33. sealing block; 34. energized spiral tube; 35. supporting spring; 4. positioning assembly; 41. magnetic block; 42. sealing column; 43. positioning member; 431. positioning block; 432. elastic sheet; 5. slide rail; 6. clamping assembly; 61. driving block; 62. rotating seat; 63. side frame; 64. telescopic rod; 65. installing slide block; 7. limiting assembly; 71. limiting block; 72. stretching sheet; 73. limiting groove; 8. elastic cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] The terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present invention are only for the convenience of description and are not used to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of the present invention without substantially changing the technical content.

[0021] Reference Figure 1-Figure 8 A clamping and positioning tool for precision machining of metal products, comprising: a machining table 1, a telescopic column mounted on the upper end of the machining table 1, and a rotating positioning table 2 fixedly mounted on the upper end of the telescopic column, wherein a mounting groove is provided in the middle of the rotating positioning table 2, and a plurality of supporting members 3 are arranged in a circular array inside the mounting groove; The support member 3 includes an outer tube 31, an iron core column 32, a sealing block 33, an energized spiral tube 34 and a support spring 35. The outer tube 31 is vertically fixedly connected inside the installation groove, the support spring 35 is fixedly installed at the bottom of the outer tube 31, the sealing block 33 is fixedly connected to the upper end of the support spring 35, the iron core column 32 is vertically fixedly connected to the sealing block 33, and the sealing sliding is arranged at the upper end opening of the outer tube 31, the energized spiral tube 34 is sleeved on the iron core column 32, and the bottom end is fixedly connected to the sealing block 33; A sliding groove is provided inside the bottom end of the core column 32 , and a positioning component 4 is provided inside the sliding groove. The positioning component 4 is used to fix the position of the core column 32 when the power-on spiral tube 34 is powered on.

[0022] In the embodiment of the application of the above technical solution, since different metal products require different support surfaces, in order to quickly complete the placement of metal products of different shapes, by setting the processing surface of the metal product upward and making the bottom surface contact with the support member 3, the support spring 35 inside the support member 3 will be compressed and deformed, thereby adapting to the shapes of different metal parts. During the processing, the internal power-on solenoid 34 is energized to make the upper end of the core column 32 magnetic, and the entire metal product is magnetically fixed. At the same time, the positioning component 4 completes the fixation of the position of the core column 32. When the metal product to be processed is replaced, it is only necessary to change the current inside the energized solenoid. While reducing the magnetism, the shape of the support member 3 is guaranteed while the metal product is being picked up, thereby completing the rapid placement of the metal product without the need for readjustment.

[0023] The preferred technical solution in this embodiment is: Reference Figure 1-4 The rotating positioning platform 2 has symmetrical placement openings on both sides, and the processing platform 1 has a plurality of slide rails 5 arranged in a ring shape on the side, the slide rails 5 are arranged vertically, and a clamping assembly 6 is arranged on the slide rails 5; The clamping assembly 6 includes a driving block 61, a rotating seat 62, a side frame 63, two telescopic rods 64 and a mounting slide block 65. The driving block 61 is arranged inside the slide rail 5. The rotating seat 62 is fixedly installed on the side of the driving block 61. The side frame 63 is fixedly connected to the rotating end of the rotating seat 62. A slide groove is arranged inside the side frame 63. The two telescopic rods 64 are symmetrically fixedly installed inside the slide groove. The mounting slide block 65 is fixedly connected to the end of the telescopic rod 64 and is slidably arranged inside the slide groove. The mounting slide block 65 is provided with a mounting groove, and the mounting groove is used to install and place clamping members of different specifications.

[0024] Since the shapes of the clamps required to be used are different in the process of processing metal products of different shapes, the traditional tooling needs to remove the bolts when replacing the clamps, which is time-consuming and has low repeatability. Before processing, the present application controls the rotating positioning table 2 to rotate according to the material and shape of the metal product to be finely processed, so that the required placement openings on both sides are transferred to the positions of the clamps required to be used, and the driving block 61 is controlled to move inside the slide rail 5. A driving gear is set inside the driving block 61, and a track rack is set inside the slide rail 5. The internal driving gear is used to move on the slide rail 5 to transfer the driving block 61 to the slide rail 5 on the rotating processing table 1. At this time, the electric shaft inside the rotating seat 62 controls the rotating seat 62 to rotate, thereby changing the side frame 63 from a vertical state to a horizontal state, so that the side frame 63 is located inside the mounting groove, and the metal product placed in the middle is clamped and limited by the clamps inside the two symmetrically arranged mounting grooves, thereby realizing rapid replacement of the clamps without the need for manual disassembly.

[0025] Reference Figure 3 and Figure 7 The bottom of the rotating positioning platform 2 is provided with an air guide cavity, the bottom of the outer tube 31 is connected with the air guide cavity, the side of the air guide cavity is provided with a plurality of sliding openings, and a plurality of limit assemblies 7 are respectively arranged inside the plurality of sliding openings, and the limit assemblies 7 are used to limit the position of the driving block 61 inside the slide rail 5; The limiting assembly 7 includes a limiting block 71, two stretching sheets 72 and a limiting groove 73. The two stretching sheets 72 are symmetrically arranged on the upper and lower sides of the limiting block 71, and the limiting slide is arranged inside the sliding mouth. The limiting groove 73 is opened at the bottom of the side of the driving block 61 away from the rotating seat 62.

[0026] After the clamping member completes clamping the metal product, during the process of grinding, cutting and other processing of the metal product, the clamping member will be affected by external force, causing shaking and squeezing, which may easily cause the position of the drive block 61 inside the slide rail 5 to be offset, affecting the stable clamping of the side of the metal product.

[0027] When the metal product is placed on multiple support members 3, due to the effect of gravity, the core column 32 drives the sealing block 33 to slide inside the outer tube 31, thereby pressing the gas at the bottom of the outer tube 31 into the air guide cavity. Due to the increase in the volume of the gas inside the air guide cavity, the gas squeezes the limit block 71, and the limit block 71 slides out from the sliding mouth. The limit block 71 is clamped in the limit groove 73 of the drive block 61, thereby completing the limit reinforcement of the drive block 61, avoiding the sliding deviation of the drive block 61 due to vibration, and ensuring the stable clamping of the metal product during the processing.

[0028] Reference Figure 5-8 The positioning assembly 4 includes a magnetic block 41, a sealing column 42 and a plurality of positioning members 43. The magnetic block 41 is fixedly connected to the bottom end of the sealing column 42. The sealing column 42 is sealingly slidably arranged inside the sliding groove. A plurality of positioning grooves are provided on the side of the top end of the sliding groove. The plurality of positioning members 43 are arranged inside the positioning groove. The positioning member 43 includes a positioning block 431 and an elastic sheet 432. The elastic sheet 432 is fixedly connected to the end of the positioning block 431 and is fixedly connected to the inner side of the positioning groove. The positioning block 431 is made of metal material, the elastic sheet 432 seals the notch at the inner end of the positioning groove, and extrusion gas is provided inside the sliding groove for extruding the elastic sheet 432 .

[0029] After the support member 3 is deformed to match the shape of the metal product, the entire support member 3 will be squeezed and stretched during the processing, thereby affecting the processing accuracy of the metal product. Before power is turned on, the magnetic block 41 will slide downward due to gravity. The magnetic block 41 is fixed in the limit position inside the sliding groove through the sealing column 42 fixedly connected to the upper end. At this time, the magnetic block 41 is separated from the lower end of the core column 32. After the processing starts, the power is turned on inside the energized solenoid 34, so that a magnetic field is generated at both ends of the core column 32. When the sealing column 42 slides in the sliding groove, it squeezes the gas inside the sliding groove. During the squeezing, the elastic sheet 432 is pushed outward, so that the positioning block 431 is moved out of the positioning groove. The moved positioning block 431 is stuck on the upper and lower sides of the upper end of the outer tube 31, thereby fixing the position of the core column 32 and the outer tube 31, and completing the positioning of the core column 32.

[0030] Reference Figure 1 An elastic cover 8 is arranged on the outside of the installation groove, and the upper end of the elastic cover 8 is arranged in an inverted truncated cone shape.

[0031] The elastic cover 8 is used to limit the metal products with larger volume, and at the same time, to block the generated debris during the finishing process of grinding or cutting to avoid the splashing of the debris.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping and positioning tool for precision machining of metal products, comprising: A processing table, a telescopic column installed on the upper end of the processing table, and a rotating positioning table fixedly installed on the upper end of the telescopic column, characterized in that a mounting groove is opened in the middle of the rotating positioning table, and a plurality of supporting members are arranged in a circular array inside the mounting groove; The support member includes an outer tube, an iron core column, a sealing block, an energized spiral tube and a supporting spring. The outer tube is vertically fixedly connected inside the mounting groove, the supporting spring is fixedly installed at the bottom of the outer tube, the sealing block is fixedly connected to the upper end of the supporting spring, the iron core column is vertically fixedly connected to the sealing block, and the sealing slide is arranged at the upper end opening of the outer tube, the energized spiral tube is sleeved on the iron core column, and the bottom end is fixedly connected to the sealing block; A sliding groove is arranged inside the bottom end of the core column, and a positioning component is arranged inside the sliding groove. The positioning component is used to fix the position of the core column when the energized spiral tube is energized.

2. The clamping and positioning tool for precision machining of metal products according to claim 1 is characterized in that: The rotating positioning platform has symmetrical placement openings on both sides, and the processing platform has a plurality of slide rails arranged in a ring shape on the side thereof. The slide rails are arranged vertically, and clamping components are arranged on the slide rails.

3. The clamping and positioning tool for precision machining of metal products according to claim 2 is characterized in that: The clamping assembly includes a driving block, a rotating seat, a side frame, two telescopic rods and a mounting slide block. The driving block is arranged inside the slide rail, the rotating seat is fixedly installed on the side of the driving block, the side frame is fixedly connected to the rotating end of the rotating seat, a slide groove is arranged inside the side frame, the two telescopic rods are symmetrically fixedly installed inside the slide groove, and the mounting slide block is fixedly connected to the end of the telescopic rod and is slidably arranged inside the slide groove.

4. The clamping and positioning tool for precision machining of metal products according to claim 3 is characterized in that: The installation slide block is provided with an installation groove, and the installation groove is used for installing and placing clamping members of different specifications.

5. The clamping and positioning tool for precision machining of metal products according to claim 1 is characterized in that: An air guide cavity is provided at the bottom of the rotating positioning platform, the bottom of the outer tube is connected to the air guide cavity, a plurality of sliding openings are provided on the side of the air guide cavity, a plurality of limit assemblies are respectively arranged inside the plurality of sliding openings, and the limit assemblies are used to limit the position of the driving block inside the slide rail.

6. The clamping and positioning tool for precision machining of metal products according to claim 5, characterized in that: The limit assembly includes a limit block, two stretching plates and a limit slot. The two stretching plates are symmetrically arranged on the upper and lower sides of the limit block, and the limit slide is arranged inside the slide. The limit slot is opened at the bottom of the side of the driving block away from the rotating seat.

7. The clamping and positioning tool for precision machining of metal products according to claim 1 is characterized in that: The positioning assembly includes a magnetic block, a sealing column and multiple positioning members, the magnetic block is fixedly connected to the bottom end of the sealing column, the sealing column is sealingly slidably arranged inside a sliding groove, a plurality of positioning grooves are opened on the side of the top end of the sliding groove, and a plurality of the positioning members are arranged inside the positioning groove.

8. The clamping and positioning tool for precision machining of metal products according to claim 7, characterized in that: The positioning member comprises a positioning block and an elastic sheet, wherein the elastic sheet is fixedly connected to the end of the positioning block and to the inner side of the positioning groove.

9. The clamping and positioning tool for precision machining of metal products according to claim 8, characterized in that: The positioning block is made of metal material, the elastic sheet seals the notch at the inner end of the positioning groove, and extrusion gas is arranged inside the sliding groove for extruding the elastic sheet.

10. The clamping and positioning tool for precision machining of metal products according to claim 1, characterized in that: An elastic cover is arranged outside the installation groove, and the upper end of the elastic cover is arranged in an inverted truncated cone shape.

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