Straight cutting fixing tool

Abstract

The utility model relates to the technical field of machining, in particular to a straight cutting fixing tool which comprises a fixing plate and a plurality of fixing cross beams fixed to the side face of the fixing plate, and a pressure fixing block is arranged at the position, between every two fixing cross beams, of the side face of the fixing plate. The pressure fixing block comprises a connecting block body fixed to the side face of the fixing plate and a sliding groove integrally formed in the connecting block body, a pressure block is arranged on the inner wall of the sliding groove in a sliding mode, an inner threaded hole is further formed in the side wall of the connecting block body in a penetrating mode, and a containing groove communicated with the inner threaded hole is integrally formed in the inner wall of the connecting block body. A lifting device is further arranged on the connecting block body in a penetrating mode, a plurality of metal blocks can be installed at a time to be fed into a cutting machine tool to be machined, batch production is facilitated, materials do not need to be repeatedly taken and replaced, and straight cutting machining is more convenient.

Description

A straight-line cutting fixture Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a straight-line cutting block fixing fixture. Background Technology

[0002] The straight-line cutter on a circular knitting machine, also known as a triangle, is a metal block with a specific curved groove or planar slope. It is typically made of wear-resistant alloy steel and is fixed to the machine's triangular support. Because these components are individual, detachable metal blocks installed around the circular cylinder, resembling assembled building blocks, workers often refer to them as blocks or blades. Its main function is to control the knitting needles, specifically the up-and-down movement of the needles in the cylinder. The needle heel is embedded in the track of the straight-line cutter. When the cylinder rotates, the straight-line cutter remains stationary, while the needle heel moves along the slope or plane of the triangle. The undulating curve of the triangle directly determines when the knitting needle rises (removing a loop) and when it descends (forming a loop). Manufacturing the straight-line cutter involves cutting the metal block using a cutting machine. The metal block is fixed within the cutting machine and cut according to a preset program to form the straight-line cutter, resulting in high processing precision.

[0003] Although the existing technologies mentioned above can solve the corresponding technical problems, they still have certain drawbacks: when existing cutting machine tools process metal blocks, only one metal block can be fed in at a time for processing. As a result, frequent material changes and reloading are required during processing, leading to slow processing speed. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a straight-line cutting fixture that can process straight-line blocks in batches and has a longer material change cycle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a straight-cutting block fixing fixture, comprising a fixing plate and a plurality of fixing crossbeams fixed to the side of the fixing plate. A pressure fixing block is provided on the side of the fixing plate between every two fixing crossbeams. The pressure fixing block includes a connecting block fixed to the side of the fixing plate and a sliding groove integrally formed within the connecting block. A pressure block is slidably disposed on the inner wall of the sliding groove. An internal threaded hole is also provided through the side wall of the connecting block. A receiving groove is integrally formed on the inner wall of the connecting block, communicating with the internal threaded hole. A receiving groove is also integrally formed on the connecting block. The device is equipped with a lifting device. The middle section of the lifting device is engaged with the inner wall of the internal threaded hole. The end of the lifting device is slidably disposed in the receiving groove and its outer wall is in contact with the bottom of the pressure block. The lifting device includes a movable bolt engaged with the internal threaded hole and a thrust block fixedly disposed at the end of the movable bolt. The thrust block has a frustum structure and its large end is connected to the end of the movable bolt. The thrust block is slidably disposed in the receiving groove and its outer wall is in contact with the bottom of the pressure block. The top of the inner wall of the sliding groove has a limiting protrusion. The bottom side wall of the pressure block is provided with an anti-detachment block that is in contact with the inner wall of the sliding groove. The top of the pressure block is also provided with an anti-slip strip.

[0006] A further improvement is that the fixed crossbeam is fixed to the side of the fixed plate by a number of crossbeam locking bolts.

[0007] A further improvement is that the side of the fixing plate is also provided with a reinforcing column that extends from top to bottom and penetrates the fixing beam. The reinforcing column is fixed to the side of the fixing plate by a number of reinforcing column bolts.

[0008] A further improvement is that several positioning grooves are integrally formed on the side of the fixing plate, and one side of the fixing beam is inserted into the positioning groove.

[0009] A further improvement is that the bottom of the fixing plate is also provided with a fixing base.

[0010] A further improvement is that the end of the movable bolt is integrally formed with an internal hexagonal hole.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are as follows: When using this utility model, a metal block can be placed between the fixed crossbeam and the pressure fixing block. Then, the moving bolt of the lifting device of the pressure fixing block is turned to move it along the internal thread hole and push the thrust block. This causes the bottom of the pressure block to gradually rise along the slope of the outer wall of the thrust block, and the pressure block gradually squeezes the metal block during the rising process. The fixed crossbeam is used to clamp and fix the metal block. Multiple metal blocks can be installed at one time and fed into the cutting machine tool for processing, which is convenient for mass production. There is no need to repeatedly pick up and change materials, making the processing of straight cutting blocks more convenient. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, 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.

[0013] Figure 1 is a three-dimensional structural schematic diagram of the tooling of this utility model;

[0014] Figure 2 is a structural schematic diagram of the front view cross section of the pressure fixing block of this utility model;

[0015] Figure 3 is a structural schematic diagram of the right cross-section of the pressure fixing block of this utility model. Detailed Implementation

[0016] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0017] Referring to Figures 1-3, the technical solution adopted in this specific embodiment is: a straight-line cutting block fixing fixture, including a fixing plate 1 and several fixing beams 2 fixed to the side of the fixing plate 1. Pressure fixing blocks 7 are provided on the side of the fixing plate 1 between every two fixing beams 2. To ensure stability and accuracy during batch processing, the main materials of the fixing plate 1, fixing beams 2, and pressure fixing blocks 7 are all made of quenched 45# steel or Cr12MoV mold steel to have good wear resistance and rigidity, and to withstand long-term, high-intensity clamping and cutting forces. The pressure fixing block 7 includes a connecting block 71 fixed to the side of the fixing plate 1 and a sliding groove 73 integrally formed within the connecting block 71. A pressure block 72 is slidably provided on the inner wall of the sliding groove 73. An internal threaded hole 34 is also provided through the side wall of the connecting block 71. An internal threaded hole 34 is integrally formed on the inner wall of the connecting block 71. The receiving groove 711 is interconnected with the internal threaded holes 34. A lifting device 74 is also provided through the connecting block 71. The middle section of the lifting device 74 is engaged with the inner wall of the internal threaded hole 34. The end of the lifting device 74 is slidably disposed in the receiving groove 711 and its outer wall is in contact with the bottom of the pressure block 72. The lifting device 74 includes a movable bolt 32 that engages with the internal threaded hole 34 and a thrust block 31 fixedly disposed at the end of the movable bolt 32. The thrust block 31 has a frustum structure and its large end is connected to the end of the movable bolt 32. The thrust block 31 is slidably disposed in the receiving groove 711 and its outer wall is in contact with the bottom of the pressure block 72. The receiving groove 711 is a cylindrical cavity that matches the shape of the thrust block 31. Its inner wall is smooth. The outer wall of the thrust block 31 is in contact with the inner wall of the receiving groove 711 to ensure that the thrust block 31 does not produce radial wobble during movement and always maintains the correct contact position with the bottom of the pressure block 72. The depth of the receiving groove 711 is greater than the length of the thrust block 31, so as to provide sufficient stroke for the movement of the thrust block 31, thereby adjusting the lifting height of the pressure block 72 to accommodate metal block blanks of different thicknesses. In use, the metal block can be placed between the fixed crossbeam 2 and the pressure fixing block 7, and then the moving bolt 32 of the lifting device 74 of the pressure fixing block 7 is turned to move it along the internal thread hole 34 and push the thrust block 31. This causes the bottom of the pressure block 72 to gradually rise along the slope of the outer wall of the thrust block 31, and the pressure block 72 to gradually squeeze the metal block during the rising process. The fixed crossbeam 2 is used to clamp and fix the metal block. Multiple metal blocks can be installed at one time and fed into the cutting machine tool for processing, which is convenient for mass production. There is no need to repeatedly pick up and change materials, making the processing of straight cutting blocks more convenient.

[0018] To ensure that the pressure block 72 can rise and fall smoothly and reset reliably, the inner wall of the sliding groove 73 is a smooth rectangular cross-section, and the shape of the pressure block 72 is fitted with the sliding groove 73 with a clearance. To reduce resistance, an inclined surface matching the slope of the outer wall of the thrust block 31 can be provided at the bottom of the pressure block 72. When the moving bolt 32 rotates in the forward direction, the thrust block 31 moves deeper into the receiving groove 711, and its outer wall slope pushes the bottom of the pressure block 72, causing the pressure block 72 to rise vertically along the sliding groove 73. When the moving bolt 32 rotates in the reverse direction, the thrust block 31 retracts, and the pressure block 72 falls naturally along the sliding groove 73 under its own gravity, returning to the initial low position, thereby realizing the rapid release of the metal block.

[0019] Preferably, to prevent the pressure block 72 from falling too quickly and causing impact, a buffer element, such as a rubber pad or a spring, can be added to the bottom of the sliding groove 73 or the bottom of the pressure block 72 to make the reset process smooth.

[0020] Preferably, the side of the fixed beam 2 facing the pressure fixing block 7 may be provided with a longitudinal positioning step. The height of the positioning step matches the standard thickness of the metal block, which is used to provide initial lateral positioning when the metal block is placed in, preventing the metal block from tilting or shifting before clamping. At the same time, the inner clamping surface of the fixed beam 2 may be processed into a rough surface or have lateral anti-slip texture to enhance the friction during clamping.

[0021] Preferably, to accommodate metal blocks of different widths, the top surface width of the pressure block 72 can be designed to be smaller than the clamping surface width of the fixed crossbeam 2, or a replaceable top block structure can be adopted. By replacing pressure blocks 72 of different widths, different specifications of metal blocks can be matched, further improving the versatility of the tooling.

[0022] The fixed crossbeam 2 is fixed to the side of the fixed plate 1 by a number of crossbeam locking bolts 5. The fixed crossbeam 2 is fixed by the crossbeam locking bolts 5. During disassembly and maintenance, the fixed crossbeam 2 can be quickly removed by simply unscrewing the crossbeam locking bolts 5, which makes maintenance and assembly more convenient.

[0023] The side of the fixing plate 1 is also provided with a reinforcing column 3 that extends from top to bottom and penetrates the fixing beam 2. The reinforcing column 3 is fixed to the side of the fixing plate 1 by several reinforcing column bolts 4. This helps to improve the strength of the fixing beam 2 by reinforcing column 3 and avoid displacement deformation under high-strength clamping. At the same time, fixing the reinforcing column 3 by reinforcing column bolts 4 makes installation, disassembly, replacement and maintenance more convenient.

[0024] The side of the fixing plate 1 has several positioning grooves 6 integrally formed. One side of the fixing beam 2 is inserted into the positioning groove 6, which makes it easier to quickly position the fixing beam 2 by simply inserting it into the positioning groove 6 when installing the fixing beam 2, thus making the installation more convenient.

[0025] The bottom of the fixing plate 1 is also provided with a fixing base 8, which makes it easier to place the fixing plate 1 on the workbench through the fixing base 8, making the placement more stable;

[0026] The top of the inner wall of the sliding groove 73 has a limiting protrusion 731, and the bottom side wall of the pressure block 72 is provided with an anti-detachment block 722 that fits against the inner wall of the sliding groove 73. This helps to limit the pressure block 72 from over-extending and falling off through the limiting protrusion 731 and the anti-detachment block 722, making the pressure block 72 more stable in use.

[0027] The pressure block 72 is also provided with an anti-slip strip 721 at the top, which helps to improve the anti-slip effect when the pressure block 72 fixes the metal block, thus making it less likely for the metal block to slip when it is fixed, and the fixing effect is better.

[0028] The movable bolt 32 has an integrally formed internal hexagonal hole 33 at its end, which makes it easier to tighten the movable bolt 32 by using a hexagonal bolt, making it more convenient to use and operate.

[0029] The present invention will be further explained below with reference to a specific installation process:

[0030] First, pre-assemble the tooling. Align one side of the fixed beam 2 and insert it into the positioning groove 6 on the side of the fixed plate 1 to achieve initial positioning. Then, use the beam locking bolt 5 to pass through the fixed beam 2 and screw it into the corresponding threaded hole in the fixed plate 1 to initially lock the fixed beam 2. Next, insert the reinforcing column 3 from top to bottom and pass through the installed fixed beam 2, ensuring that the mounting hole of the reinforcing column 3 is aligned with the holes on the fixed beam 2 and the fixed plate 1. Subsequently, use the reinforcing column bolt 4 to fasten the reinforcing column 3 to the fixed plate 1. Through the tight fit between the reinforcing column 3 and the fixed beam 2, the bending and torsional strength of the fixed beam 2 is significantly enhanced.

[0031] Next, install the pressure fixing block 7. The pre-assembled pressure fixing block 7 assembly, including the connecting block 71, pressure block 72, and lifting device 74, is fixed to the side of the fixing plate 1 by bolts or welding, ensuring it is positioned between the two fixing beams 2. During fixing, ensure the front of the pressure block 72 is parallel to the clamping surface of the fixing beam 2 to guarantee uniform clamping force on the metal block.

[0032] Next, the metal blocks are loaded. Multiple metal block blanks to be processed are placed one by one into the gaps between each pair of fixed crossbeams 2, so that one side of the metal block is pressed against the inner clamping surface of the fixed crossbeam 2. At this point, the pressure block 72 is in its lowest position, providing ample space for the metal blocks to be placed.

[0033] Finally, perform the clamping operation. Insert an Allen wrench into the Allen hole 33 at the end of the movable bolt 32 and rotate it clockwise. The movable bolt 32 rotates and moves inward in the internal threaded hole 34 of the connecting block 71, simultaneously causing the thrust block 31 at its end to slide forward in the receiving groove 711. Since the thrust block 31 has a frustum structure, its outer wall gradually pushes up the bottom of the pressure block 72 as it moves forward. Guided by the sliding groove 73, the pressure block 72 rises smoothly, and the anti-slip strip 721 at its top gradually presses against the other side of the metal block blank. When you feel a significant increase in the resistance of the wrench and the metal block is firmly pressed between the fixed crossbeam 2 and the pressure block 72, stop rotating to complete the clamping. Conversely, rotating the Allen wrench counterclockwise will loosen and remove the processed straight cut block.

[0034] The entire fixture, through the combination of multiple fixed crossbeams 2 and pressure fixing blocks 7, can simultaneously clamp multiple metal blocks, greatly improving production efficiency. All components are connected by detachable bolts, facilitating quick replacement and maintenance after wear.

[0035] The working principle of this utility model is as follows: When using this utility model, a metal block can be placed between the fixed crossbeam 2 and the pressure fixing block 7. Then, the moving bolt 32 of the lifting device 74 of the pressure fixing block 7 is turned to move it along the internal thread hole 34 and push the thrust block 31. This causes the bottom of the pressure block 72 to gradually rise along the slope of the outer wall of the thrust block 31, thereby causing the pressure block 72 to gradually squeeze the metal block during the rising process. This works in conjunction with the fixed crossbeam 2 to clamp and fix the metal block. Multiple metal blocks can be installed at one time and fed into the cutting machine tool for processing, which is convenient for mass production. There is no need to repeatedly pick up and change materials, making the processing of straight cutting blocks more convenient.

[0036] This utility model aims to protect the structure of the product. The model numbers of the components are not the focus of this utility model's protection, as they are common technology. Any component on the market that can achieve the functions described above can be used as an option. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A straight-line cutting block fixing fixture, characterized in that: The system includes a fixed plate (1) and several fixed crossbeams (2) fixed to the side of the fixed plate (1). A pressure fixing block (7) is provided on the side of the fixed plate (1) between every two fixed crossbeams (2). The pressure fixing block (7) includes a connecting block (71) fixed to the side of the fixed plate (1) and a sliding groove (73) integrally formed within the connecting block (71). A pressure block (72) is slidably provided on the inner wall of the sliding groove (73). An internal threaded hole (34) is also provided through the side wall of the connecting block (71). A receiving groove (711) is integrally formed on the inner wall of the connecting block (71) and communicates with the internal threaded hole (34). A lifting device (74) is also provided through the connecting block (71). The middle section of the lifting device (74) connects with the internal threaded hole (34). 4) Inner wall meshing connection, the end of the lifting device (74) is slidably disposed in the storage groove (711) and the outer wall is attached to the bottom of the pressure block (72). The lifting device (74) includes a movable bolt (32) meshing with the internal thread hole (34) and a thrust block (31) fixedly disposed at the end of the movable bolt (32). The thrust block (31) is a frustum structure and the large end is connected to the end of the movable bolt (32). The thrust block (31) is slidably disposed in the storage groove (711) and the outer wall is attached to the bottom of the pressure block (72). The top of the inner wall of the sliding groove (73) has a limiting protrusion (731). The bottom side wall of the pressure block (72) is provided with an anti-detachment block (722) that is attached to the inner wall of the sliding groove (73). The top of the pressure block (72) is also provided with an anti-slip strip (721).

2. The straight-line cutting block fixing fixture according to claim 1, characterized in that: The fixed crossbeam (2) is fixed to the side of the fixed plate (1) by a number of crossbeam locking bolts (5).

3. The straight-line cutting block fixing fixture according to claim 1, characterized in that: The side of the fixing plate (1) is also provided with a reinforcing column (3) that extends from top to bottom and penetrates the fixing beam (2). The reinforcing column (3) is fixed to the side of the fixing plate (1) by a number of reinforcing column bolts (4).

4. The straight-line cutting block fixing fixture according to claim 1, characterized in that: The fixing plate (1) has several positioning grooves (6) integrally formed on its side, and one side of the fixing beam (2) is inserted into the positioning grooves (6).

5. The straight-line cutting block fixing fixture according to claim 1, characterized in that: The bottom of the fixing plate (1) is also provided with a fixing base (8).

6. The straight-line cutting block fixing fixture according to claim 1, characterized in that: The movable bolt (32) has an integrally formed internal hexagonal hole (33) at its end.

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