Machining clamping device

Abstract

The utility model belongs to the field of machining, and particularly discloses a machining clamping device which comprises a machining platform, a clamping tool and a plurality of clamps, and the machining platform is provided with a plurality of vertically-through telescopic holes. The clamping tool is placed on the machining platform and comprises a bearing installation face, a plurality of installation holes formed in the bearing installation face and at least two positioning holes penetrating through the clamping tool. The upper part of the opening of the positioning hole is inverted-cone-shaped, and the peripheral surface is a smoothly contracted inclined surface; the clamp comprises a positioning telescopic rod which telescopically slides in the telescopic hole, a driving mechanism fixed below the processing platform, and a conical pressing block positioned at the top end of the positioning telescopic rod; the conical pressing block is matched with the positioning hole and is in an inverted cone shape, and the peripheral face is a smoothly-shrunk inclined face.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing, and in particular relates to a mechanical processing clamping device. Background Art

[0002] In current mechanical processing, in order to improve the stability of clamping and realize multi-position and multi-directional processing of special-shaped products to be processed, the clamping tool is often fixed to the product to be processed, and then the clamping tool is positioned. Among them, the positioning and fixation between the clamping tool and the processing platform or processing equipment becomes the key.

[0003] However, in actual use, it is found that the clamping tooling in the prior art needs to be repositioned and tightened after each replacement of the product to be processed or the clamping tooling, and the calibration and testing of the equipment operation trajectory need to be completed in order to achieve the purpose of precise positioning. This process will cause a lot of manpower and working time consumption, and due to the existence of installation and clamping errors, inaccurate positioning problems are prone to occur, affecting the accuracy and consistency of product processing. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a mechanical processing clamping device, which aims to solve or improve at least one of the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a mechanical processing clamping device, comprising:

[0006] The processing platform has a plurality of telescopic holes extending from top to bottom;

[0007] A clamping tool is placed on the processing platform, comprising a bearing mounting surface, a plurality of mounting holes arranged on the bearing mounting surface, and at least two positioning holes passing through the clamping tool; the upper part of the positioning hole opening is an inverted cone, and the peripheral surface is a smoothly contracted inclined surface;

[0008] The clamp is provided with at least two, including a positioning telescopic rod that telescopically slides in the telescopic hole, a driving mechanism fixed under the processing platform, and a conical pressure block located at the top of the positioning telescopic rod; the positioning telescopic rod is connected to the telescopic end of the driving mechanism, and the conical pressure block cooperates with the positioning hole, is an inverted cone, and the outer peripheral surface is a smoothly contracted inclined surface, and the outer diameter of the bottom of the conical pressure block is equal to the outer diameter of the positioning telescopic rod.

[0009] Preferably, the outer diameter of the bottom of the conical pressing block is equal to the outer diameter of the positioning telescopic rod.

[0010] Preferably, there are two positioning holes, including a first positioning hole and a second positioning hole, a first channel is opened on the side of the first positioning hole, and a second channel is opened on the side of the second positioning hole, the opening directions of the first channel and the second channel are consistent, and the opening widths are both greater than the outer diameter of the positioning telescopic rod.

[0011] Preferably, the positioning telescopic rod is a round rod, which is easier to match with the first positioning hole and the second positioning hole than a square rod or a connecting rod of other shapes, and when passing through the first channel and the second channel, it does not need to be accurately aligned, as long as the directions are roughly the same, it can be smoothly pushed in.

[0012] Preferably, the positioning telescopic rod is detachably connected to the telescopic end of the driving mechanism by thread. Under this structure, the first positioning hole and / or the second positioning hole do not need to have the first channel and / or the second channel on the side, and relatively fast positioning and correction can be achieved by installing the positioning telescopic rod from above the positioning hole.

[0013] Preferably, the positioning telescopic rod and the conical pressing block are integrally formed.

[0014] Preferably, the driving mechanism is a cylinder.

[0015] Preferably, the cylinder is fixed to the bottom of the processing platform through a plurality of connecting rods.

[0016] Compared with the prior art, the mechanical processing clamping device of the utility model has the following technical effects and advantages: the clamping tool is guided and positioned and fastened by the automatic fixture, ensuring that the position of the clamping tool remains consistent after each replacement, reducing the workload of equipment calibration and testing before production. It solves the problem of repetitive equipment calibration caused by tool positioning in the prior art, reduces the investment in manpower and working hours for tool replacement, and improves the accuracy and consistency of product processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of the mechanical processing clamping device of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 This is a schematic diagram of the structure of the clamping tooling in the utility model;

[0021] Figure 4This is a schematic diagram of another perspective of the positioning hole in the clamping fixture;

[0022] Figure 5 It is a structural schematic diagram of the clamp in the utility model.

[0023] Wherein: 1, processing platform; 2, clamping tool; 3, first fixture; 4, second fixture; 201, load-bearing mounting surface; 202, mounting hole; 203, first positioning hole; 20301, first channel; 204, second positioning hole; 20401, second channel; 301, first positioning telescopic rod; 302, first conical pressure block; 303, first cylinder; 304, first connecting rod; 401, second positioning telescopic rod; 402, second conical pressure block; 403, second cylinder; 404, second connecting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Combine the following Figure 1 to Figure 5 The utility model is described as a mechanical processing clamping device.

[0027] refer to Figure 1 , Figure 1 A schematic diagram of the structure of the mechanical processing clamping device provided by the utility model is shown, and the mechanical processing clamping device includes a processing platform 1, a plurality of clamps arranged on the processing platform, and a clamping tool 2 matched with the clamps. In this embodiment, two clamps are provided, a first clamp 3 and a second clamp 4, and the two clamps are arranged at a certain distance. A first positioning hole 203 and a second positioning hole 204 matched with the first clamp 3 and the second clamp 4 are provided on the clamping tool 2. The two clamps respectively form a positioning clamping match with the two positioning holes, and the accurate position of the clamping tool 2 is determined by two points, so that the alignment and positioning are quickly completed.

[0028] Specifically, Figure 2 and Figure 5As shown, the first fixture 3 includes a first positioning telescopic rod 301, a first conical pressure block 302, a first cylinder 303 and a first connecting rod 304, wherein the first cylinder 303 is fixed below the processing platform 1 by a plurality of first connecting rods 304; specifically, four first connecting rods 304 are connected to the top of the first cylinder 303, and the top of the first connecting rod 304 is detachably fixed to the processing platform 1 by bolts; it should be understood that a plurality of connecting holes for fixing the cylinders are provided on the processing platform 1, and the fixing position of the cylinders and the processing platform 1 can be adjusted as needed, and the connecting holes are T-shaped countersunk holes, so that after the bolts are screwed in, they can be buried in the holes and will not protrude from the upper surface of the processing platform 1, and the center lines of the connecting holes are located on the same spatial circle on the horizontal plane, and a telescopic hole that runs through the upper and lower parts of the processing platform 1 is opened on the processing platform 1 at the center of the spatial circle, and the first positioning telescopic rod 301 passes through the hole. The telescopic hole has one end connected to the telescopic end of the first cylinder 303 at the bottom of the processing platform 1, and the other end passes through the table top of the processing platform 1, extends upward, and is connected to a first conical pressing block 302 at its top; the first conical pressing block 302 is an inverted frustum structure, the bottom outer diameter is equal to the outer diameter of the first conical pressing block 302, the top outer diameter is greater than the bottom outer diameter, and the outer peripheral surface is a smooth inclined surface; when the first cylinder 303 drives the first positioning telescopic rod 301 to extend outward, the first conical pressing block 302 is at a certain distance from the table top of the processing platform 1, and the clamping tool 2 can enter under the first conical pressing block 302; when the first cylinder 303 drives the first positioning telescopic rod 301 to contract, the first conical pressing block 302 is pressed downward, and the distance between the first conical pressing block 302 and the processing platform 1 gradually decreases, and the first conical pressing block 302 finally presses the clamping tool 2 on the table top of the processing platform 1 to achieve clamping positioning.

[0029] Specifically, Figure 2 As shown, the second clamp 4 includes a second positioning telescopic rod 401, a second conical pressing block 402, a second cylinder 403 and a second connecting rod 404. Preferably, the structure of the second clamp 4 is the same as that of the first clamp 3, providing the same clamping force, and the second cylinder 403 and the first cylinder 303 can operate synchronously to complete automatic guidance and rapid positioning. Since the second clamp 4 has the same structure as the first clamp 3, the structure and connection relationship of the second positioning telescopic rod 401, the second conical pressing block 402, the second cylinder 403 and the second connecting rod 404 can refer to the first clamp 3, and will not be repeated here.

[0030] It should be understood that a plurality of connection holes for fixing the first cylinder 303 and the second cylinder 403 are provided on the processing platform 1. By changing the fixing positions of the first cylinder 303 and the second cylinder 403, the relative positions and distances between the two can be changed to adapt to clamping tools 2 of different sizes and models.

[0031] Specifically, Figure 3 and Figure 4 As shown, the clamping tool 2 is a flat plate structure, including a bearing mounting surface 201, a plurality of mounting holes 202 arranged on the bearing mounting surface 201, and a first positioning hole 203 and a second positioning hole 204 that pass through the clamping tool 2 at intervals, and the first positioning hole 203 and the second positioning hole 204 are respectively matched with the first clamp 3 and the second clamp 4. The upper half of the first positioning hole 203 and the second positioning hole 204 are both tapered openings, which are wide at the top and narrow at the bottom, and are inclined and smoothly contracted, and are adapted to the outer peripheral surfaces of the first tapered pressing block 302 and the second tapered pressing block 402. In order to quickly place the clamping tool 2 under the first clamp 3 and the second clamp 4, a first channel 20301 is opened on the side of the first positioning hole 203. The first channel 20301 runs through the first positioning hole 203 to the outside of the clamping tool 2, so that the first positioning telescopic rod 301 in the first clamp 3 can enter the first positioning hole 203 through the first channel 20301. It should be understood that the width of the first channel 20301 is slightly larger than the width of the first positioning telescopic rod 301. Figure 4 As shown; similarly, on the side of the second positioning hole 204, a second channel 20401 is opened in the same direction as the first channel 20301, and the second channel 20401 penetrates the second positioning hole 204 to the outside of the clamping tool 2, so that the second positioning telescopic rod 401 in the second clamp 4 can enter the second positioning hole 204 through the second channel 20401. It should be understood that the width of the second channel 20401 is slightly larger than the width of the second positioning telescopic rod 401; the side opening hole structure formed by the first positioning hole 203 and the first channel 20301 and the side opening hole structure formed by the second positioning hole 204 and the second channel 20401 are symmetrically arranged along the central axis of the clamping tool 2, so that the first channel 20301 and the second channel 20401 have openings in the same direction so that they can be smoothly pushed under the first clamp 3 and the second clamp 4.

[0032] According to a further optimization scheme, the first positioning telescopic rod 301 and the second positioning telescopic rod 401 are both round rods, which are easier to cooperate with the first positioning hole 203 and the second positioning hole 204 than square rods, and when passing through the first channel 20301 and the second channel 20401, there is no need for accurate alignment, as long as the general directions are the same, they can be pushed in smoothly.

[0033] Further optimization scheme, the first positioning telescopic rod 301 and the telescopic end of the first cylinder 303 are detachably connected by thread. When in use, the first positioning telescopic rod 301 located above the processing platform 1 can be removed from the telescopic end of the first cylinder 303, and then the clamping tool 2 is placed at the approximate position on the processing platform 1, so that the first positioning hole 203 and the telescopic end of the first cylinder 303 are roughly overlapped, and then the first positioning telescopic rod 301 is inserted from above the first positioning hole 203, and rotated to connect with the telescopic end of the first cylinder 303, so that the approximate positioning of the position can be completed, and the clamping tool 2 is rotated to make the second positioning hole 204 and the telescopic end of the second cylinder 403 roughly overlap, and the second positioning hole 204 and the second fixture 4 are roughly positioned in the same way. Under this structure, the first positioning hole 203 and / or the second positioning hole 204 do not need to open the first channel 20301 and / or the second channel 20401 to the side, and can also achieve relatively fast positioning and correction.

[0034] According to a further optimized solution, the first positioning telescopic rod 301 and the first conical pressing block 302 are integrally formed; and the second positioning telescopic rod 401 and the second conical pressing block 402 are integrally formed.

[0035] The working principle of the embodiment of the utility model:

[0036] The embodiment of the utility model proposes a clamping device that can automatically and quickly guide and position. When in use, the clamping tool is roughly pushed into the fixture. There is no need to accurately adjust the position. The clamping tool only needs to be quickly introduced into the approximate position area. The cylinders in the two fixtures are pressed tightly, and the downward pressure guiding force of the conical pressure block is used to accurately guide the clamping tool, ensuring that the clamping tool can automatically complete the positioning of the fixed position, thereby achieving precise clamping.

[0037] The technical effects of the embodiments of the utility model are as follows:

[0038] The mechanical processing clamping device of the utility model embodiment can realize the rapid correction of the clamping tool, realize the automatic correction and positioning and fastening of the clamping tool through the special structure of the fixture and the tool positioning hole, ensure that the position of the clamping tool is consistent after each replacement, and reduce the workload of equipment calibration and testing before production. It solves the problem of repetitive equipment calibration caused by tool positioning in the prior art, can shorten the working time by about 80%, and reduce the product processing precision defect rate to zero.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A mechanical processing clamping device, characterized in that: include: The processing platform (1) has a plurality of telescopic holes extending from top to bottom; A clamping tool (2) is placed on the processing platform (1), comprising a load-bearing installation surface (201), a plurality of installation holes (202) arranged on the load-bearing installation surface (201), and at least two positioning holes passing through the clamping tool (2); the upper part of the opening of the positioning hole is an inverted cone, and the peripheral surface is a smoothly contracted inclined surface; The clamp is provided with at least two parts, including a positioning telescopic rod telescopically sliding in the telescopic hole, a driving mechanism fixed below the processing platform (1), and a conical pressing block located at the top end of the positioning telescopic rod; the positioning telescopic rod is connected to the telescopic end of the driving mechanism, and the conical pressing block is matched with the positioning hole. The conical pressing block is an inverted cone, and the outer peripheral surface is a smoothly contracted inclined surface. The outer diameter of the bottom of the conical pressing block is equal to the outer diameter of the positioning telescopic rod.

2. The mechanical processing clamping device according to claim 1, characterized in that: The outer diameter of the bottom of the conical pressing block is equal to the outer diameter of the positioning telescopic rod.

3. The mechanical processing clamping device according to claim 1, characterized in that: The positioning holes are provided in two numbers, including a first positioning hole (203) and a second positioning hole (204); a first channel (20301) is opened on the side of the first positioning hole (203); a second channel (20401) is opened on the side of the second positioning hole (204); the opening directions of the first channel (20301) and the second channel (20401) are consistent, and the opening widths are both greater than the outer diameter of the positioning telescopic rod.

4. The mechanical processing clamping device according to claim 3, characterized in that: The positioning telescopic rod is a round rod.

5. The mechanical processing clamping device according to claim 1, characterized in that: The positioning telescopic rod is detachably connected to the telescopic end of the driving mechanism through threads.

6. The mechanical processing clamping device according to claim 1, characterized in that: The positioning telescopic rod and the conical pressing block are integrally formed.

7. The mechanical processing clamping device according to claim 1, characterized in that: The driving mechanism is a cylinder.

8. The mechanical processing clamping device according to claim 7, characterized in that: The cylinder is fixed to the bottom of the processing platform (1) via a plurality of connecting rods.

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