A positioning jig for a semi-automatic beveling cutting machine

Abstract

The present invention relates to the technical field of hydraulic support parts processing, and specifically to a positioning jig for a semi-automatic bevel cutting machine, the positioning jig for the semi-automatic bevel cutting machine comprising a connecting plate and a pair of cardboards; the pair of cardboards are arranged in parallel along the longitudinal direction; a plurality of card slots are opened at the top of the cardboard along the transverse direction; the pair of cardboards are arranged at the two ends of the connecting plate in a one-to-one correspondence; the bottom surface of the pair of cardboards and the connecting plate are located in the same horizontal plane. The card slots arranged on the cardboards are through-through along the longitudinal direction, so that the two ends of the live part can extend out of the pair of cardboards, and then the contour lines of the two ends and the top of the live part are located outside the pair of cardboards, and only a small part of the contour line of the bottom end of the live part abuts against the bottom of the card slot, and the contact area between the pair of side walls of the card slot and the end face of the live part is large, and the placement error caused by the deformation of the bottom end of the live part can be compensated, and the positioning jig is used to effectively eliminate the deformation of the live part, improve the cutting accuracy of the bevel angle and blunt edge of the live part, and ensure the process size of the drawing.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic support component processing, and in particular to a positioning jig for a semi-automatic beveling cutting machine. Background Art

[0002] In the process of cutting the bevel, a bevel cutting machine is usually used to automatically or semi-automatically cut the bevel. The bevel cutting machine can perform high-efficiency and high-precision bevel processing. In the process of cutting the shape, after the contour cutting of the shape workpiece is completed, the shape of the workpiece (such as the edge cover) has been deformed after being heated. After the workpiece is placed flat on the pad positioned by the bevel cutting machine, the bevel cutting process is performed.

[0003] The backing plate of the semi-automatic bevel cutting machine is set up independently from the cutting machine. Compared with the integrated setting of the backing plate (workbench) and the cutting machine of the fully automatic bevel cutting machine, the semi-automatic bevel cutting machine has higher flexibility in use and a shorter path for moving parts. The backing plate is generally a strip plate arranged in a horizontal array, and a plurality of grooves arranged in a longitudinal array can be opened on the strip plate to reduce the contact area between the strip plate and the backing plate while ensuring the support strength, thereby enhancing the heat dissipation capacity of the live parts during the cutting process and reducing the deformation of the live parts caused by heat.

[0004] Since irregular deformation has occurred during the process of cutting the live parts, there is a certain deviation between the actual position of the live parts and the theoretical position after the live parts are placed on the positioning pad. It is difficult to effectively reduce the deviation size by placing the live parts parallel to the positioning pad, that is, the positioning accuracy of the pad for the live parts is low, resulting in low accuracy after the bevel and blunt edge cutting. In addition, when the cutting position of the bevel is just above the strip plate, the strip plate will affect the heat dissipation of the live parts, causing the live parts to undergo secondary deformation due to the heat from the bevel cutting, which reduces the cutting quality of the live parts. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a positioning jig for a semi-automatic bevel cutting machine, which solves the technical problems of low positioning accuracy of the pad of the existing semi-automatic bevel cutting machine and secondary deformation caused by the live part being located directly above the strip plate when cutting the bevel.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned object, the positioning jig for the semi-automatic beveling cutting machine of the present invention comprises a connecting plate and a pair of clamping plates;

[0009] A pair of the card plates are arranged in parallel along the longitudinal direction; a plurality of card slots are opened at the top of the card plates in the transverse direction, and the card slots are connected along the longitudinal direction;

[0010] A pair of the clamping plates are arranged at two ends of the connecting plate in a one-to-one correspondence;

[0011] The bottom surfaces of the pair of clamping plates and the connecting plate are located in the same horizontal plane.

[0012] Optionally, the connecting plate is welded to the clamping plate.

[0013] Optionally, a slide groove is provided in the connecting plate; the clamping plate is connected with a slider assembly;

[0014] The slider assembly is slidably connected to the slide groove along the longitudinal direction.

[0015] Optionally, the slider assembly includes a connecting block, a mounting block and a pair of rolling members;

[0016] The slider assembly is connected to one end of the connecting block, and the other end of the connecting block is connected to the mounting block; the connecting block is slidably connected to the slide groove;

[0017] The mounting block is rotatably connected to a pair of rolling members; the rolling members are pressed against a surface of the connecting plate facing away from the clamping plate.

[0018] Optionally, the slider assembly further includes a limit bolt, a horizontal plate and a vertical plate;

[0019] The connection plate is provided with a plurality of limiting holes; the limiting bolts are connected to the limiting holes;

[0020] The horizontal plate is arranged parallel to the top end of the connecting plate, and the two are connected by the limiting bolts; the vertical plate is arranged perpendicular to the horizontal plate, and the vertical plate can abut against the mounting block.

[0021] Optionally, the slider assembly includes a bidirectional screw rod and a pair of bearing seats;

[0022] A pair of the bearing seats are mounted one by one on a side of the connecting plate away from the clamping plate; two ends of the bidirectional screw rod are rotatably connected to the pair of the bearing seats one by one;

[0023] A pair of the mounting blocks are threadedly connected to the bidirectional screw rod, and the bidirectional screw rod can drive a pair of the clamping plates to move in opposite directions.

[0024] Optionally, the slider assembly further includes a baffle;

[0025] The baffle is vertically connected to the connecting plate, and the baffle is arranged above the bidirectional screw rod.

[0026] Optionally, a distance between outer walls of a pair of the clamping plates is smaller than a length of the connecting plate.

[0027] Optionally, the positioning jig for the semi-automatic beveling cutting machine further includes a pressing block;

[0028] The pressing block is arranged on the outer side of the card plate; and the top height of the pressing block is not lower than the bottom height of the card slot.

[0029] Optionally, the positioning jig for the semi-automatic beveling cutting machine further comprises a leveling block, and the leveling block is capable of moving in the lateral direction;

[0030] The leveling block is provided with a plurality of movable part clamping grooves; the plurality of movable part clamping grooves and the plurality of clamping grooves are arranged alternately along the transverse direction.

[0031] (III) Beneficial effects

[0032] The beneficial effects of the present invention are:

[0033] The card slots arranged on the card plates are penetrated in the longitudinal direction, so that a pair of card plates can be extended out of the two ends of the live part, and then the contour lines of the two ends and the top of the live part are located outside the pair of card plates, and only a small part of the contour line of the bottom end of the live part is in contact with the bottom of the card slot. The contact area between a pair of side walls of the card slot and the end face of the live part is large, and the placement error caused by deformation of the bottom end of the live part can be compensated. The positioning jig is used to effectively eliminate the influence of deformation of the live part during material cutting, thereby improving the cutting accuracy of the bevel angle and blunt edge of the live part and ensuring the process dimensions of the drawing.

[0034] By using a pair of end faces of the live part as the substrate and abutting the pair of end faces against a pair of side walls of the slot, the placement accuracy of the live part in the slot can be effectively guaranteed, the influence of the deformation of the live part's outer contour line can be eliminated, the cutting accuracy of the live part's groove angle and blunt edge can be improved, and the process requirements can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a positioning jig for a semi-automatic bevel cutting machine in a first embodiment of the present invention;

[0036] Figure 2 It is a right side view of the positioning jig for the semi-automatic bevel cutting machine in the first embodiment of the present invention;

[0037] Figure 3 It is a structural schematic diagram of the card board of the present invention;

[0038] Figure 4 It is a schematic diagram of the connection between the slide groove and the slider assembly in the second embodiment of the present invention;

[0039] Figure 5 It is a structural schematic diagram of a slider assembly in a second embodiment of the present invention;

[0040] Figure 6 It is a structural schematic diagram of a slider assembly in a third embodiment of the present invention;

[0041] Figure 7 A schematic diagram of the connection between the connecting plate and the baffle in the third embodiment of the present invention;

[0042] Figure 8 It is a schematic diagram of the structure of the compact of the present invention;

[0043] Fig. 9 It is a schematic diagram of the connection between the leveling block and the pressing block of the present invention;

[0044] Fig.10 for Fig. 9 Enlarged view of point A in the middle.

[0045] [Description of Reference Numerals]

[0046] 1: connecting plate; 11: slideway;

[0047] 2: card plate; 21: card slot; 22: connection block; 23: mounting block; 24: rolling element; 25: limit bolt; 26: horizontal plate; 27: vertical plate;

[0048] 3: bidirectional screw rod; 31: baffle; 32: bearing seat; 33: handle;

[0049] 4: pressing block; 41: mounting slot;

[0050] 5: leveling block; 51: live part clamping slot. DETAILED DESCRIPTION

[0051] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0052] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0053] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] See also Figures 1 to 3 The present invention provides a positioning jig for a semi-automatic bevel cutting machine, which comprises a connecting plate 1 and a pair of clamping plates 2; the pair of clamping plates 2 are arranged in parallel along the longitudinal direction; a plurality of clamping grooves 21 are opened at the top of the clamping plate 2 in the transverse direction, and the clamping grooves 21 are passed through in the longitudinal direction; the pair of clamping plates 2 are arranged at both ends of the connecting plate 1 in a one-to-one correspondence; the bottom surface of the pair of clamping plates 2 and the connecting plate 1 are located in the same horizontal plane.

[0056] Multiple live parts can be placed on a pair of card plates 2 in the horizontal direction, and one live part is connected to a corresponding pair of parallel card slots 21 arranged in the longitudinal direction. The pair of card plates 2 play a role in limiting and supporting the live parts. The connecting plate 1 connects the pair of card plates 2 into a whole. The connecting plate 1 is used for counterweighting and bearing the force, which improves the structural strength of the pair of card plates 2 when the live parts are connected. The size of the card slot 21 is adapted to the size of the live parts. The sizes of the multiple card slots 21 arranged in the horizontal direction can be the same size or different sizes. Different sizes can improve the adaptability of the positioning jig for the semi-automatic beveling cutting machine to the processing of live parts of various sizes. When performing beveling cutting, move the cutting gun to the top of the live part and cut according to the shape of the required bevel, such as cutting K-type, V-type, Y-type and other bevels.

[0057] The card slot 21 arranged on the card plate 2 is penetrated in the longitudinal direction, so that the two ends of the live part can extend out of the pair of card plates 2, and then the contour lines of the two ends and the top of the live part are located outside the pair of card plates 2, and only a small part of the contour line of the bottom end of the live part is in contact with the bottom of the card slot 21. The contact area between the pair of side walls of the card slot 21 and the end face of the live part is large, and the placement error caused by the deformation of the bottom end of the live part can be compensated, which effectively eliminates the influence of the deformation of the live part on the positioning jig used in the semi-automatic bevel cutting machine, thereby improving the cutting accuracy of the bevel angle and blunt edge of the live part to meet the process requirements.

[0058] It should be noted that the deformation referred to in the present invention refers to the deformation of the live part caused by heat during the flame cutting process. The deformation is concentrated on the flame path of the cutting gun. Therefore, the outer contour line of the live part will be deformed to a certain extent, while the inner side of the live part is far from the flame of the cutting gun, and the deformation is small and negligible. Therefore, a pair of end faces of the live part are used as substrates, and a pair of end faces are correspondingly abutted against a pair of side walls of the slot 21, which can effectively ensure the placement accuracy of the live part in the slot 21, eliminate the influence of the deformation of the outer contour line of the live part, and improve the cutting accuracy of the bevel angle and blunt edge of the live part to meet the process requirements. For live parts with smaller width dimensions, there is a dead angle for cutting the live part at the slot 21 position. The dead angle edge material at the live part can act as a tie bar, which effectively reduces the deformation of the live part during the bevel cutting process; if the dead angle edge material needs to be processed, it can be processed and cut later; of course, corresponding small-sized card plates 2 and slots 21 can also be configured so that the slots 21 will not interfere with the cutting of the bevel. However, usually the top surface of the workpiece is higher than the top surface of the clamping groove 21, and the clamping groove 21 does not interfere with the bevel cutting operation of the workpiece.

[0059] In the first embodiment, the connecting plate 1 is welded to the clamping plate 2. The connecting plate 1 and the pair of clamping plates 2 are connected into a whole by welding, such as spot welding, and the welding strength is high, which can effectively ensure the structural strength of the positioning jig for the semi-automatic beveling cutting machine and improve the adaptability to heavy-duty workpiece processing.

[0060] In the second embodiment, if Figure 4 As shown, a slide groove 11 is provided in the connecting plate 1; a slider assembly is connected to the card plate 2; and the slider assembly is connected to the slide groove 11 in a longitudinal sliding manner. Specifically, a pair of card plates 2 are connected to the connecting plate 1 in a longitudinal sliding manner, so that the spacing between the pair of card plates 2 is adjustable, thereby improving the processing adaptability of the positioning jig for the semi-automatic bevel cutting machine to workpieces of different lengths and sizes. In addition, the adjustable spacing between the pair of card plates 2 also enables the positioning jig for the semi-automatic bevel cutting machine to reprocess the cutting dead corners of the same workpiece, thereby reducing the transportation path for reprocessing the workpiece and improving the processing efficiency.

[0061] See also Figure 5The slider assembly includes a connecting block 22, a mounting block 23 and a pair of rolling members 24; the slider assembly is connected to one end of the connecting block 22, and the other end of the connecting block 22 is connected to the mounting block 23; the connecting block 22 is slidably connected to the slide groove 11; the mounting block 23 is rotatably connected to a pair of rolling members 24; the rolling members 24 are pressed against the side of the connecting plate 1 away from the card plate 2. The rolling member 24 can be a roller or a spherical steel ball welded to the mounting block 23, as long as it is conducive to the sliding of the mounting block 23 on the connecting plate 1. The mounting block 23 can effectively limit the lateral movement of the card plate 2, ensuring that the pair of card slots 21 arranged longitudinally on the pair of card plates 2 are parallel in the longitudinal direction, thereby improving the position accuracy of the live parts after the card plates 2 are engaged, so that the live parts will not tilt, but are parallel to the connecting plate 1 in the transverse direction. When adjusting the spacing between the pair of card plates 2, the card plates 2 can be directly pushed longitudinally to slide, and the adjustment method is simple and practical.

[0062] Secondly, the slider assembly also includes a limiting bolt 25, a horizontal plate 26 and a vertical plate 27; a plurality of limiting holes (not shown) are provided on the connecting plate 1; the limiting bolt 25 is connected to the limiting hole; the horizontal plate 26 is arranged parallel to the top of the connecting plate 1, and the two are connected by the limiting bolt 25; the vertical plate 27 is arranged perpendicular to the horizontal plate 26, and the vertical plate 27 can abut against the mounting block 23. Specifically, the horizontal plate 26 and the vertical plate 27 are L-shaped, which are used to connect and fix the mounting block 23, limit the longitudinal sliding of the mounting block 23, improve the longitudinal limiting strength of the positioning jig for the semi-automatic bevel cutting machine, enhance the stability of the live parts placed on a pair of clamping plates 2, ensure the bevel cutting accuracy, and improve the cutting yield. The limiting holes are set according to the length dimensions of the various plates to be processed.

[0063] In the third embodiment, if Figure 6 As shown, the slider assembly includes a bidirectional screw 3 and a pair of bearing seats 32; the pair of bearing seats 32 are installed one-to-one on the side of the connecting plate 1 away from the card plate 2; the two ends of the bidirectional screw 3 are rotatably connected to the pair of bearing seats 32 one-to-one; a pair of mounting blocks 23 are threadedly connected to the bidirectional screw 3, and the bidirectional screw 3 can drive the pair of card plates 2 to move in the opposite direction. The rotation direction of the threads at both ends of the bidirectional screw 3 is opposite, and the bidirectional screw 3 can be rotated to synchronously drive the pair of card plates 2 to move in the opposite direction, so as to adjust the spacing between the pair of card plates 2. The threaded connection method has a self-locking characteristic and a strong limiting ability. The bidirectional screw 3 can effectively limit the longitudinal sliding of a pair of card plates 2, thereby optimizing the equipment structure. Optionally, the outer side of the bearing seat 32 is rotatably connected with a handle 33, and the handle 33 is connected to the bidirectional screw 3 to improve the convenience of manually rotating the bidirectional screw 3.

[0064] See also Figure 7The slider assembly further includes a baffle 31, which is vertically connected to the connecting plate 1 and is disposed above the bidirectional screw rod 3. The baffle 31 is used to prevent the debris generated during the cutting process from falling onto the bidirectional screw rod 3, which can effectively ensure the transmission stability of the bidirectional screw rod 3 and extend its service life.

[0065] In addition, the distance between the outer walls of the pair of pallets 2 is less than the length of the connecting plate 1. After placing multiple live parts on the pair of pallets 2, the center of gravity of the multiple live parts is located at the geometric center of the multiple live parts. Arranging the pair of pallets 2 close to the inner side of the connecting plate 1 can effectively increase the upper limit of the bearing capacity of the pair of pallets 2, improve the structural strength of the equipment, and improve the adaptability to heavy live parts processing.

[0066] like Figure 8 As shown, the positioning jig for the semi-automatic bevel cutting machine also includes a pressure block 4; the pressure block 4 is arranged on the outside of the card plate 2; and the top height of the pressure block 4 is not lower than the bottom height of the card slot 21. The pressure block 4 is used to limit the longitudinal position of the live part, and further improve the stability of the live part placed on a pair of card plates 2. The specific number of pressure blocks 4 is set according to actual needs. A pressure block 4 can be abutted on each of the two free ends of the live part, and a pressure block 4 can also be abutted on the side of the connecting plate 1 away from the card plate 2. The use of the pressure block 4 is flexible and can effectively improve the bearing strength of the equipment.

[0067] Secondly, the pressing block 4 is in surface contact with the connecting plate 1. Optionally, in actual operation, the pressing block 4 is pressed against the side of the connecting plate 1 close to the clamping plate 2, and the pressing block 4 is pushed longitudinally until the pressing block 4 is pushed to a preset position, and the multiple live parts are in contact with the pressing block 4, which directly completes the calibration of the multiple live parts' engaging positions, so that the grooves of the multiple live parts after cutting overlap in the horizontal direction, effectively improving the accuracy of the groove cutting of the multiple live parts.

[0068] See also Fig. 9 and Fig.10The positioning jig for the semi-automatic bevel cutting machine also includes a leveling block 5, which can move in the horizontal direction; the leveling block 5 is provided with a plurality of live part clamping grooves 51; the plurality of live part clamping grooves 51 are arranged in a staggered manner in the horizontal direction with the plurality of clamping grooves 21, so that one end face of the live part can abut against the clamping groove 21, and the other end face of the live part can abut against the live part clamping groove 51. Specifically, due to manufacturing errors and wear of the clamping groove 21, and deformation caused by unloading of the live part, there is a placement error when placing the live part on a pair of clamping plates 2, resulting in the end face of the live part not being perpendicular to the horizontal plane, and the live part will lean against the left wall or right wall of the clamping groove 21, thereby reducing the cutting accuracy of the live part. The leveling block 5 of the present invention can be installed at the side, top or bottom of the movable part, and the movable part clamping groove 51 is clamped with the movable part. By pushing and pulling the leveling block 5 laterally, multiple movable parts can be moved laterally in the clamping groove 21 until the end face of the movable part abuts against the side wall of the clamping groove 21. The leveling block 5 can no longer move laterally in one direction, thereby completing the leveling of multiple movable parts and improving the cutting accuracy of the subsequent cutting gun when cutting the groove.

[0069] Fig. 9 and Fig.10 The embodiment shown is that the leveling block 5 is installed on the side end of the live part. In this embodiment, a mounting groove 41 is provided on the pressure block 4, and the mounting groove 41 is used to support and fix the leveling block 5. In actual operation, the live part is first placed on a pair of card plates 2; then the multiple live part clamping grooves 51 of the leveling block 5 are clamped with the multiple live parts one by one; the leveling block 5 is moved horizontally until the leveling block 5 cannot move, and the multiple live parts are leveled; the mounting groove 41 of the pressure block 4 is clamped with one end of the leveling block 5 to support and fix the leveling block 5, and the pressure block 4 limits the horizontal movement of the leveling block 5. The use of the leveling block 5 and the pressure block 4 is flexible, and the processing adaptability to live parts of different thicknesses and lengths is strong. Of course, the pressure block 4 can also be replaced by a linear push-pull device such as a cylinder or an electric push rod, as long as the horizontal push-pull and horizontal and vertical limit of the leveling block 5 can be achieved.

[0070] In the embodiment where the leveling block 5 is installed at the bottom of the live parts, the leveling block 5 is installed at the bottom of multiple live parts, and the leveling block 5 is arranged in parallel with a pair of clamping plates 2 in the longitudinal direction. Similarly, the leveling of multiple live parts can be achieved by pushing and pulling the leveling block 5. In the embodiment where the leveling block 5 is installed at the top of the live parts, the leveling of multiple live parts can also be achieved, but the top of the leveling block 5 will interfere with the cutting gun, that is, the live parts need to be cut multiple times. Although the cutting efficiency is low, the tie rods reserved at the interference position can effectively prevent the live parts from deforming when cutting the groove, and the tie rods can be processed and removed later. The installation position and number of the leveling block 5 can be reasonably set according to actual needs.

[0071] It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but the present invention is not limited to the above specific implementation methods. Any changes or modifications made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning jig for a semi-automatic beveling cutting machine, characterized in that: The positioning jig for the semi-automatic beveling cutting machine comprises a connecting plate (1), a pair of clamping plates (2), a pressing block (4) and a leveling block (5); A pair of the card plates (2) are arranged in parallel along the longitudinal direction of the connecting plate (1); a plurality of card slots (21) are provided at the top end of the card plates (2) along the transverse direction of the connecting plate (1), and the card slots (21) are penetrated in the longitudinal direction; A pair of the card plates (2) are arranged one-to-one at the two ends of the connecting plate (1) and are located on the same side of the connecting plate (1); the same side surface of the pair of card plates (2) perpendicular to the horizontal direction abuts against the connecting plate (1); the distance between the outer walls of the pair of card plates (2) is less than the length of the connecting plate (1); and the two ends of the movable part can extend out of the pair of card plates (2); The bottom surfaces of the pair of clamping plates (2) and the connecting plate (1) are located in the same horizontal plane; The leveling block (5) is capable of moving in the horizontal direction; a plurality of movable part clamping grooves (51) are provided on the leveling block (5); the plurality of movable part clamping grooves (51) and the plurality of clamping grooves (21) are arranged alternately in the horizontal direction, so that one end surface of the movable part can abut against the clamping groove (21), and the other end surface of the movable part can abut against the movable part clamping groove (51); The pressing block (4) is arranged on the outer side of the clamping plate (2); a mounting groove (41) is provided on the pressing block (4); the mounting groove (41) is clamped with one end of the leveling block (5), so as to support and fix the leveling block (5) and limit the lateral movement of the leveling block (5).

2. The positioning jig for a semi-automatic bevel cutting machine according to claim 1, characterized in that: The connecting plate (1) and the clamping plate (2) are welded.

3. The positioning jig for a semi-automatic bevel cutting machine according to claim 1, characterized in that: The connecting plate (1) is provided with a sliding groove (11); the clamping plate (2) is connected with a sliding block assembly; The slider assembly is slidably connected to the slide groove (11) along the longitudinal direction.

4. The positioning jig for a semi-automatic bevel cutting machine according to claim 3, characterized in that: The slider assembly comprises a connecting block (22), a mounting block (23) and a pair of rolling elements (24); The slider assembly is connected to one end of the connecting block (22), and the other end of the connecting block (22) is connected to the mounting block (23); the connecting block (22) is slidably connected to the slide groove (11); The mounting block (23) is rotatably connected to a pair of rolling elements (24); the rolling elements (24) are pressed against a surface of the connecting plate (1) facing away from the clamping plate (2).

5. The positioning jig for a semi-automatic bevel cutting machine according to claim 4, characterized in that: The slider assembly also includes a limiting bolt (25), a horizontal plate (26) and a vertical plate (27); The connection plate (1) is provided with a plurality of limiting holes; the limiting bolts (25) are connected to the limiting holes; The horizontal plate (26) is arranged parallel to the top end of the connecting plate (1), and the two are connected by the limiting bolt (25); the vertical plate (27) is arranged perpendicular to the horizontal plate (26), and the vertical plate (27) can abut against the mounting block (23).

6. The positioning jig for a semi-automatic bevel cutting machine according to claim 4, characterized in that: The slider assembly comprises a bidirectional screw rod (3) and a pair of bearing seats (32); A pair of the bearing seats (32) are mounted one-to-one on a side of the connecting plate (1) away from the clamping plate (2); two ends of the bidirectional screw rod (3) are rotatably connected to the pair of the bearing seats (32) one-to-one; A pair of the mounting blocks (23) are threadedly connected to the bidirectional screw rod (3), and the bidirectional screw rod (3) can drive a pair of the clamping plates (2) to move in opposite directions.

7. The positioning jig for a semi-automatic bevel cutting machine according to claim 6, characterized in that: The slider assembly also includes a baffle (31); The baffle plate (31) is vertically connected to the connecting plate (1), and the baffle plate (31) is arranged above the bidirectional screw rod (3).

8. The positioning jig for a semi-automatic bevel cutting machine according to claim 1, characterized in that: The top height of the pressing block (4) is not lower than the bottom height of the slot (21).

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