Clamp fixture for a circular sawing machine

Abstract

The utility model discloses a fixture fro circular sawing machine, include: support, lower clamp, it detachable fixed on the lower part of support, be equipped with a plurality of first positioning slot of interval arrangement along the lower clamp first direction on the lower clamp, first positioning slot extends along the second direction of lower clamp, first direction with second direction perpendicular to each other, upper clamp, it sets up above the lower clamp and opposite the lower clamp up and down movement sets up, be equipped with a plurality of second positioning slot with a plurality of first positioning slot corresponding setting of upper clamp, and rod -shaped spare is clamped between corresponding first positioning slot and second positioning slot, drive assembly, it installs on the upper part of support, and upper clamp with drive assembly transmission is connected and under the drive assembly belt down up and down movement. The utility model provides a fixture fro circular sawing machine, can improve cutting efficiency and precision.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a clamping fixture for a circular saw. Background Technology

[0002] When processing and dividing bars with large outer diameters, wire cutting is often used in the past. However, this method has a series of problems, such as slow processing speed and poor end face quality. With the improvement of saw blade cutting capabilities, small circular saws are now widely used due to their high speed and low processing cost. However, their cutting accuracy is unstable and the large length variation seriously restricts the use of high-requirement manufacturers. Especially when cutting high-hardness materials, which are difficult to cut, loose clamping also seriously affects the cutting accuracy. Rapid wear and frequent replacement also seriously affect the processing cycle and increase processing costs.

[0003] Traditional clamps use an upper and lower clamping method. The upper clamp consists of a metal groove and a flat polyurethane strip to form a plane, while the lower clamp uses a V-groove made of mold steel. The lower clamp is fixed, and a hydraulic transmission mechanism presses against the metal groove, driving the polyurethane strip downward to combine with the lower clamp to clamp the bar stock. However, the following problems exist in actual production:

[0004] (1) Polyurethane strips are easily worn and need to be replaced frequently. In addition, polyurethane strips are inserted into the upper fixture groove with an interference fit, and polyurethane strips are deformed and difficult to install.

[0005] (2) When clamping 5 bars at a time, the deformation of the polyurethane strip causes uneven distribution of clamping force. The bars vibrate during sawing, resulting in problems such as large height difference (difference ≤ 0.15 mm) and tilted end face (perpendicularity ≤ 0.06 mm) after cutting. Utility Model Content

[0006] The purpose of this invention is to provide a clamping fixture for a circular saw to achieve stable fixation of bar stock during cutting.

[0007] Based on the above problems, the technical solution provided by this utility model is as follows:

[0008] Fixtures for circular saws include:

[0009] Support;

[0010] The lower clamp is detachably fixed to the lower part of the support. The lower clamp is provided with a plurality of first positioning grooves arranged at intervals along a first direction of the lower clamp. The first positioning grooves extend along a second direction of the lower clamp. The first direction and the second direction are perpendicular to each other.

[0011] An upper clamp is disposed above the lower clamp and is vertically movable relative to the lower clamp. The upper clamp is provided with a plurality of second positioning grooves corresponding to the plurality of first positioning grooves. The rod-shaped part is clamped between the corresponding first positioning grooves and second positioning grooves.

[0012] A drive assembly is mounted on the upper part of the support, and the upper clamp is connected to the drive assembly for transmission and moves up and down under the drive assembly.

[0013] In some embodiments, the drive assembly includes a drive component mounted on the upper part of the support and a support block fixedly connected to the power output end of the drive component, wherein the upper clamp is detachably connected to the support block.

[0014] In some embodiments, the lower clamp is provided with a first clearance groove that extends vertically and is open at one end for the saw blade to extend into, and the support is provided with a second clearance groove that corresponds to the first clearance groove for the saw blade to extend into.

[0015] In some embodiments, the upper clamp includes a first clamping block and a second clamping block arranged at intervals along the second direction. The first clamping block is provided with a plurality of first positioning groove segments. The second clamping block includes a first clamping part and a second clamping part connected in a U-shape. The first clamping part and the second clamping part are respectively provided with a plurality of second positioning groove segments. The first positioning groove segments and the corresponding second positioning groove segments form the second positioning groove. A third clearance groove for the saw blade to extend into is formed between the first clamping block and the second clamping block.

[0016] In some embodiments, the lower end of the support block is provided with two mounting grooves extending along the first direction, and the first clamping block and the second clamping block are respectively provided with positioning blocks that cooperate with the mounting grooves.

[0017] In some embodiments, the driving component is a hydraulic cylinder, and the power output end of the hydraulic cylinder is fixedly connected to the support block.

[0018] In some of these embodiments, the upper clamp is a nylon block.

[0019] In some of these embodiments, the first positioning groove is a U-shaped groove and the second positioning groove is a V-shaped groove.

[0020] In some of these embodiments, the depths of both the first and second positioning grooves are less than the radius of the rod-shaped part.

[0021] In some embodiments, the support includes a base plate, a vertical plate disposed on the base plate, and a top plate disposed on the upper end of the vertical plate and arranged parallel to the base plate, the lower clamp is mounted on the base plate, and the drive assembly is mounted on the top plate.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] (1) The rod-shaped parts are stably fixed by the cooperation of the upper clamp and the positioning groove of the lower clamp to prevent vibration when the bar saw blade is cutting, improve the cutting quality, and the cutting height difference is ≤0.07mm and the end face perpendicularity is ≤0.03mm.

[0024] (2) The upper clamp is made of nylon blocks, whose elastic modulus can not only meet the deformation compensation capability and the outer diameter of different bars in the same batch, but also reduce the wear rate and reduce the replacement frequency, thereby further improving production efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a fixture tooling embodiment for a circular saw machine according to the present invention;

[0027] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the lower clamp in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the first clamping block in an embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the second clamping block in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the support block in an embodiment of the present invention;

[0032] Figure 7 This is one of the schematic diagrams of the installation structure of the upper clamp and the support block in an embodiment of this utility model;

[0033] Figure 8 This is a second schematic diagram of the installation structure of the upper clamp and the support block in an embodiment of this utility model;

[0034] in:

[0035] 100. Support; 101a. Base plate; 101b. Vertical plate; 101c. Top plate;

[0036] 200. Lower clamp;

[0037] 300. Upper clamp; 301. First clamping block; 301a. First positioning groove segment; 302. Second clamping block; 303. Positioning block; 302a. First clamping block; 302b. Second clamping block; 302c. Second positioning groove segment; 303. Positioning block; 304. Third clearance groove;

[0038] 400, Support block; 401, Mounting slot; 402, Fourth clearance slot;

[0039] 500. Drive components;

[0040] 600. Rod-shaped parts. Detailed Implementation

[0041] The above solution will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrating the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0042] like Figure 1 and Figure 2 As shown in the figure, this utility model provides a fixture for a circular saw, including a support 100, a lower clamp 200 installed on the lower part of the support 100, an upper clamp 300 installed on the upper part of the support 100, and a drive assembly for driving the upper clamp 300 to move up and down.

[0043] The support 100 includes a base plate 101a, a vertical plate 101b vertically arranged on the base plate 101a, and a top plate 101c arranged on the upper end of the vertical plate 101b and parallel to the base plate 101a. The lower clamp 200 is fixed to the base plate 101a by bolts, and the drive assembly is installed on the top plate 101c by bolts.

[0044] The lower clamp 200 is a metal block, such as Figure 3 As shown, a plurality of first positioning grooves 201 are provided on the lower clamp 200 at intervals along the first direction of the lower clamp 200. The first positioning grooves 201 extend along the second direction of the lower clamp 200, and the second direction and the first direction are perpendicular to each other.

[0045] The drive assembly includes a drive component 500 mounted on the upper part of the support 100 and a support block 400 fixedly connected to the power output end of the drive component 500. The upper clamp 300 is detachably connected to the support block 400. The drive component 500 is a hydraulic cylinder, and the power output end of the hydraulic cylinder is connected to the support block 400.

[0046] The upper clamp 300 is a nylon block, positioned above the lower clamp 200 and movable vertically relative to it. The upper clamp 300 has multiple second positioning grooves corresponding to the multiple first positioning grooves 201. The rod-shaped part 600 is clamped within the corresponding first and second positioning grooves. The use of a nylon block in the upper clamp 300 satisfies deformation compensation requirements, is wear-resistant, improves clamping stability and accuracy, and reduces replacement frequency.

[0047] In this example, the first positioning groove 201 is a U-shaped groove and the second positioning groove is a V-shaped groove. The depths of both the first positioning groove 201 and the second positioning groove are less than the radius of the rod-shaped part 600. When the lower clamp 200 presses down, the rod-shaped part 600 can achieve self-centering within the first positioning groove 201 and the second positioning groove, thereby achieving stable fixation of the rod-shaped part 600, preventing vibration during rod sawing, and improving cutting quality.

[0048] To facilitate the saw blade's cutting of the rod-shaped part 600, the lower clamp 200 is provided with a first clearance groove 202 that extends vertically and is open at one end for the saw blade to enter. The support 100 is provided with a second clearance groove corresponding to the first clearance groove 202 for the saw blade to enter. Meanwhile, the upper clamp 300 includes a first clamping block 301 and a second clamping block 302 arranged at intervals along a second direction, such as... Figure 4 As shown, the first clamping block 301 is provided with multiple first positioning groove segments 301a, such as... Figure 5 As shown, the second clamping block 302 includes a first clamping part 302a and a second clamping part 302b connected in a U-shape. The first clamping part 302a and the second clamping part 302b are respectively provided with a plurality of second positioning groove segments 302c. The first positioning groove segment 301a and the corresponding second positioning groove segment 302c form a second positioning groove. A third clearance groove 304 for the saw blade to extend into is formed between the first clamping block 301 and the second clamping block 302. At the same time, a fourth clearance groove 402 corresponding to the third clearance groove 304 is provided on the support block 400.

[0049] To facilitate the installation of the clamp 300, such as Figure 6 As shown, two mounting grooves 401 extending along the first direction are provided at the lower end of the support block 400, such as... Figure 7 and Figure 8 As shown, the first clamping block 301 and the second clamping block 302 are provided with positioning blocks 303 that cooperate with the mounting groove 401. The two clamping blocks are respectively fixed in the corresponding mounting groove 401 by bolts.

[0050] The working principle of this utility model is as follows:

[0051] Before cutting, multiple rod-shaped parts 600 are placed in multiple first positioning slots 201 on the lower clamp 200. Then, the driving component 500 drives the lower clamp 200 to press down and abut against the multiple rod-shaped parts 600, clamping the rod-shaped parts 600 between the lower clamp 200 and the upper clamp 300. Finally, the rod-shaped parts 600 are cut by the saw blade of the circular saw.

[0052] In summary, this fixture can achieve stable clamping of bar-shaped parts during cutting, reduce cutting vibration, and improve cutting efficiency and accuracy.

[0053] The above examples are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fixture for a circular saw, characterized in that, include: Support; The lower clamp is detachably fixed to the lower part of the support. The lower clamp is provided with a plurality of first positioning grooves arranged at intervals along a first direction of the lower clamp. The first positioning grooves extend along a second direction of the lower clamp. The first direction and the second direction are perpendicular to each other. An upper clamp is disposed above the lower clamp and is vertically movable relative to the lower clamp. The upper clamp is provided with a plurality of second positioning grooves corresponding to the plurality of first positioning grooves. The rod-shaped part is clamped between the corresponding first positioning grooves and second positioning grooves. A drive assembly is mounted on the upper part of the support, and the upper clamp is connected to the drive assembly for transmission and moves up and down under the drive assembly.

2. The fixture for a circular saw machine according to claim 1, characterized in that: The drive assembly includes a drive component mounted on the upper part of the support and a support block fixedly connected to the power output end of the drive component. The upper clamp is detachably connected to the support block.

3. The fixture for a circular saw machine according to claim 2, characterized in that: The lower clamp is provided with a first clearance groove that runs vertically through the upper and lower parts and is open at one end for the saw blade to extend into. The support is provided with a second clearance groove that corresponds to the first clearance groove for the saw blade to extend into.

4. The fixture for a circular saw machine according to claim 3, characterized in that: The upper clamp includes a first clamping block and a second clamping block arranged at intervals along the second direction. The first clamping block is provided with a plurality of first positioning groove segments. The second clamping block includes a first clamping part and a second clamping part connected in a U-shape. The first clamping part and the second clamping part are respectively provided with a plurality of second positioning groove segments. The first positioning groove segment and the corresponding second positioning groove segment form the second positioning groove. A third clearance groove for the saw blade to extend into is formed between the first clamping block and the second clamping block.

5. The fixture for a circular saw machine according to claim 4, characterized in that: The lower end of the support block is provided with two mounting grooves extending along the first direction, and the first clamping block and the second clamping block are respectively provided with positioning blocks that cooperate with the mounting grooves.

6. The fixture for a circular saw machine according to claim 2, characterized in that: The driving component is a hydraulic cylinder, and the power output end of the hydraulic cylinder is fixedly connected to the support block.

7. The fixture for a circular saw machine according to claim 1, characterized in that: The upper clamp is a nylon block.

8. The fixture for a circular saw machine according to claim 1, characterized in that: The first positioning groove is a U-shaped groove, and the second positioning groove is a V-shaped groove.

9. The fixture for a circular saw machine according to claim 8, characterized in that: The depths of both the first and second positioning grooves are less than the radius of the rod-shaped part.

10. The fixture for a circular saw machine according to claim 1, characterized in that: The support includes a base plate, a vertical plate mounted on the base plate, and a top plate mounted on the upper end of the vertical plate and arranged parallel to the base plate. The lower clamp is mounted on the base plate, and the drive assembly is mounted on the top plate.

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