Cutting positioning auxiliary device used in luggage case pull rod production

Abstract

The invention discloses a cutting and positioning auxiliary device used in luggage case pull rod production in the technical field of pull rod positioning auxiliary equipment structures, solves the problems that an existing clamping mode is single and the effect is common, and comprises a fixed frame, a positioning frame, a rotating plate, an abutting wheel, a sleeve, a matching wheel, a pressure spring, a movable part and a matching part. After a pull rod is inserted into positioning grooves in a fixing frame and a positioning frame, a motor is started to drive an abutting wheel and a sleeve to rotate on a rotating plate, under the action of a matching piece and a pressure spring, the rotating sleeve drives a matching wheel which is tightly attached to the sleeve to move, and the matching wheel which gradually moves towards the sleeve counteracts the sleeve; the sleeve, the rotating plate and the pressing wheel do circumferential rotation in the direction of the pull rod; the rotating plate rotating close to the pull rod is matched with the fixing frame to clamp the pull rod of the luggage case through the movable piece and the compressed spring, and meanwhile the abutting wheel rotating close to the rotating plate acts on the pull rod to further clamp and fix the pull rod.

Description

Technical Field

[0001] The invention relates to the technical field of tie rod positioning auxiliary equipment structures, in particular to a cutting positioning auxiliary device used in the production of luggage case tie rods. Background Art

[0002] Cutting a suitcase trolley is a professional and delicate process, usually involving specific equipment and processes. The suitcase trolley production machine is equipped with a cutting positioning auxiliary device, which is used to fix and clamp the suitcase trolley to facilitate the tool to accurately cut the trolley and ensure the cutting quality.

[0003] Existing cutting positioning auxiliary devices, such as an automatic cutting device for a trolley case with publication number CN117140612A, use an active clamping gear and a driven clamping gear to fix the trolley case rod with a clamping block, thereby effectively controlling the swing generated during cutting. However, the device has a complex structure and is not easy to adjust.

[0004] To this end, we propose a cutting positioning auxiliary device used in the production of luggage case pull rods. Summary of the invention

[0005] The object of the present invention is to provide a cutting positioning auxiliary device used in the production of luggage case tie rods to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides a cutting positioning auxiliary device used in the production of luggage case tie rods, comprising a fixing frame fixed on a movable frame of a machine tool, wherein a positioning frame is provided on the side of the fixing frame.

[0007] It also includes a rotating plate and a movable part, the rotating plate is rotatably connected to two mutually rotatable pressure wheels, one of the pressure wheels is fixedly connected to a sleeve at the central axis, a matching wheel is movably fitted in the sleeve, a compression spring is provided between the rotating plate and the positioning frame, the rotating plate is located between the fixed frame and the positioning frame and is rotatable, the movable part causes the pressure wheel to rotate, first drives the positioning frame to rotate and fit into the fixed frame to clamp the pull rod, and then the two pressure wheels rotate to further press the pull rod.

[0008] The matching piece enables the sleeve to rotate by itself through the movable piece, and cooperates with the compression spring to move the matching wheel to press and correct the position of the sleeve, thereby rotating the rotating plate.

[0009] Preferably, a connecting rod is provided between the two positioning frames, the positioning frames and the fixing frames are arranged in a staggered manner, and the positioning frames and the fixing frames are both provided with positioning grooves that cooperate with each other, and the positioning grooves are used to clamp the pull rod.

[0010] Preferably, the movable part includes a power part and a sliding rod connected and fixed to the top of the rotating plate, the sliding rod is an arc-shaped structure, one of the positioning frames is provided with an arc-shaped groove that slides with the sliding rod, and the power part is used to drive the pressure wheel to rotate.

[0011] Preferably, the power component includes a motor fixedly connected to a frame on the machine tool, the output shaft of the motor passes through the rotating plate and is fixedly connected to a power wheel, and the pressure wheel located at the bottom rotates in cooperation with the power wheel.

[0012] Preferably, the mating part includes a fixed plate connected and fixed to a frame on the machine tool, a reciprocating screw is threadedly connected to the fixed plate, the end of the reciprocating screw is connected and fixed to the mating wheel, the mating wheel is always pressed and fitted with the inner wall of the sleeve by the action of a compression spring, and the circumference of the mating wheel is rollingly fitted with the inner wall of the sleeve.

[0013] Preferably, the middle portion of the rotating plate corresponding to the contact position of the two pressing wheels is in a U-shaped structure.

[0014] Preferably, the sleeve has a conical structure, and fan fins are provided on the outer surface of the sleeve.

[0015] Preferably, a plurality of avoidance grooves with gap distribution are provided on the circumference of the pressure wheel and the power wheel, and a plurality of mounting plates with gap distribution are fixedly connected to the circumference of the pressure wheel. The mounting plates are used to install cutting tools, and the mounting plates are located between two adjacent avoidance grooves.

[0016] Compared with the prior art, the beneficial effect of the present invention is that after the pull rod is inserted into the positioning grooves in the fixing frame and the positioning frame, the pull rod is initially clamped and fixed.

[0017] Then start the motor to drive the pressure wheel and the sleeve to rotate on the rotating plate. Under the action of the matching parts and the compression spring, the rotating sleeve drives the tightly fitting matching wheel to move, and the matching wheel gradually moves toward the direction of the sleeve to react the sleeve, so that the sleeve, the rotating plate and the pressure wheel make a circular rotation in the direction of the pull rod. With the help of the compression spring, the positioning frame is further pressed against the pull rod on the fixed frame to enhance the clamping effect. The device has a simple structure and is easy to adjust.

[0018] When the rotating plate close to the pull rod is rotated through the movable parts and the compression spring to make the positioning frame tightly hold the pull rod, the fixed frame cooperates with the fixed frame to clamp the pull rod of the suitcase. At the same time, the pressure wheel close to the pull rod rotates with the rotating plate, and the two rotating plates rotating counterclockwise further clamp the fixed pull rod to ensure that during the cutting process, the rotating plate always clamps the pull rod as the cutting progresses, ensuring the clamping effect of the entire cutting process, so that the clamping effect is fully applied in the entire cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention (the pressure wheel and the power wheel are friction wheel structures);

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention (the pressure wheel and the power wheel are meshing gear structures);

[0021] Figure 3 It is a side view schematic diagram of the overall structure of the present invention;

[0022] Figure 4 It is a right side schematic diagram of the overall structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the present invention in which the frame is removed and the fixing frame is disassembled;

[0024] Figure 6 It is a schematic diagram of the disassembly structure of the sliding rod and the positioning frame of the present invention;

[0025] Figure 7 It is a schematic diagram of the disassembled structure of the sliding rod and the rotating plate, the sleeve and the matching wheel of the present invention;

[0026] Figure 8 It is a schematic diagram of the distribution state of the matching wheel axis and the sleeve axis in the initial state of the present invention;

[0027] Fig. 9 It is a schematic diagram of the distribution state of the axis of the mating wheel and the axis of the sleeve in the final cutting state of the present invention;

[0028] Fig.10 It is a schematic diagram of the split structure of the motor and the power wheel, the sleeve and the pressure wheel of the present invention;

[0029] Fig.11 It is a schematic diagram of the matching structure of the pressure wheel and the power wheel of the present invention;

[0030] Fig.12 It is a schematic diagram of the matching structure between the two pressure wheels of the present invention (the pressure wheel and the power wheel are friction wheel structures);

[0031] Fig.13 It is a schematic diagram of the matching structure between the two pressure wheels of the present invention (the pressure wheel and the power wheel are meshing gear structures).

[0032] In the figure: 1. fixing frame; 2. positioning frame; 3. rotating plate; 4. pressing wheel; 5. sleeve; 6. matching wheel; 7. compression spring; 8. connecting rod; 9. positioning groove; 10. sliding rod; 11. arc groove; 12. motor; 13. power wheel; 14. fixing plate; 15. reciprocating screw rod; 16. fan fin; 17. avoidance groove; 18. mounting plate; 19. speed reducer. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 13 The present invention provides a cutting positioning auxiliary device used in the production of luggage case pull rods, comprising a fixing frame 1 fixed on a movable frame of a machine tool, and a positioning frame 2 is provided on the side of the fixing frame 1.

[0035] It also includes a rotating plate 3 and a movable part. The rotating plate 3 is rotatably connected to two pressing wheels 4 that are rotatably matched with each other. A sleeve 5 rotatably connected to the rotating plate 3 is fixedly connected at the central axis of one of the pressing wheels 4. A matching wheel 6 is movably matched in the sleeve 5. A compression spring 7 is provided between the rotating plate 3 and the positioning frame 2. The rotating plate 3 is located between the fixed frame 1 and the positioning frame 2 and is rotatable. The movable part causes the pressing wheel 4 to rotate, first driving the positioning frame 2 to rotate and fit into the fixed frame 1 to clamp the pull rod, and then the two pressing wheels 4 rotate to further press the pull rod.

[0036] The matching piece makes the sleeve 5 rotate by itself through the movable piece, and the matching compression spring 7 makes the matching wheel 6 move to press and correct the position of the sleeve 5, so that the rotating plate 3 rotates.

[0037] First, move the positioning frame 2 so that the positioning frame 2 is close to the rotating plate 3, and then insert the pull rod into the positioning groove 9 on the fixed frame 1. Then, loosen the positioning frame 2 so that the positioning groove 9 of the positioning frame 2 is also pressed and fixed on the pull rod, so that the positioning frame 2 and the fixed frame 1 clamp the pull rod. However, the clamping force is not enough at this time, and the fastening effect is poor. Finally, start the motor 12.

[0038] The motor 12 rotates, driving the pressure wheel 4 and the sleeve 5 to rotate on the rotating plate 3. Under the action of the mating piece and the compression spring 7, the rotating sleeve 5 drives the tightly fitting mating wheel 6 to move, and the mating wheel 6 gradually moves toward the direction of the sleeve 5 to react against the sleeve 5 (the central axis of the sleeve 5 gradually approaches and coincides with the central axis of the mating wheel 6), causing the sleeve 5, the rotating plate 3 and the pressure wheel 4 to make a circular rotation in the direction of the pull rod.

[0039] The rotating plate 3 rotates close to the pull rod, so that the positioning frame 2 presses the pull rod tightly through the movable part and the compression spring 7, and cooperates with the fixing frame 1 to clamp the pull rod of the suitcase. At the same time, the pressing wheel 4 that rotates close to the rotating plate 3 acts on the pull rod to further clamp the fixed pull rod.

[0040] Furthermore, a mounting plate 18 (a tool can be mounted on the mounting plate 18 ) and an avoidance groove 17 can be provided on the pressing wheel 4 for clamping the pull rod, so that the tool can cut the pull rod while clamping the pull rod, making the cutting work efficient and convenient.

[0041] In this figure, the machine tool is not shown, only the frame on the machine tool is shown. The frame is fixedly installed on the machine tool, and the cutting auxiliary positioning device in this application is installed on the frame.

[0042] A connecting rod 8 is provided between the two positioning frames 2. The positioning frames 2 and the fixing frames 1 are arranged in a staggered manner. The positioning frames 2 and the fixing frames 1 are provided with positioning grooves 9 that cooperate with each other. The positioning grooves 9 are used to clamp the pull rods.

[0043] When the pull rod is placed in the positioning grooves 9 on the fixing frame 1 and the positioning frame 2, the compression spring 7 always remains in a compressed state, and the fixing frame 1 and the positioning frame 2 are in a staggered state to increase the clamping point position of the pull rod and ensure the clamping stability of the pull rod.

[0044] The pressure wheel 4 and the power wheel 13 in the present application are rolling wheels that rotate with each other. The pressure wheel 4 and the power wheel 13 are rotated by friction rolling. The friction transmission has the advantages of simple structure and smooth transmission. It is suitable for clamping and cutting the pull rod. This is because the material of the pull rod is generally plastic, and the pull rod has a hollow and retractable structure inside, and the cutting strength is relatively small.

[0045] It is worth noting that the pressure wheel 4 and the power wheel 13 can also be a meshing gear structure, which further increases the rotational coordination between the pressure wheel 4 and the power wheel 13. The meshing depth of the gear structure is shallow, which ensures the meshing effect while reducing the loss of the pull rod cutting edge (wear is inevitable).

[0046] The pressure wheel 4 in the present application has a small thickness, which facilitates synchronous cutting movement on the one hand, and cooperates with the cutting tool on the other hand to increase the cutting opening. During the process, the pressure wheel 4 always presses against the cutting opening. The pressure wheel 4 is selected according to actual needs, and the pressure wheel 4 and the power wheel 13 are both detachably connected to the rotating plate 3.

[0047] The movable part includes a power part and a sliding rod 10 connected and fixed to the top of the rotating plate 3. The sliding rod 10 is an arc-shaped structure. One of the positioning frames 2 is provided with an arc-shaped groove 11 that slides with the sliding rod 10. The power part is used to drive the pressure wheel 4 to rotate.

[0048] Under the action of the power piece, the rotating plate 3 rotates closer to the fixed frame 1, thereby driving the sliding rod 10 to rotate synchronously, driving the compression spring 7 to move, thereby increasing the compression force of the compression spring 7, ensuring that the positioning frame 2 cooperates with the fixed frame 1 to tightly clamp the pull rod, and the sliding rod 10 slides along the arc groove 11.

[0049] It is worth noting that the rotation axes of the arc groove 11 and the sliding rod 10 are both located at the output shaft position of the motor 12, and the contact points between the two positioning grooves 9 of the positioning frame 2 and the fixing frame 1 and the two pressing wheels 4 are all on the same circular track.

[0050] The power part includes a motor 12 which is connected and fixed to the frame on the machine tool. The output shaft of the motor 12 passes through the rotating plate 3 and is fixedly connected to a power wheel 13. The pressure wheel 4 at the bottom rotates in coordination with the power wheel 13. The pull rod is first placed in the positioning groove 9 on the fixed frame 1, and the motor 12 is started. The motor 12 drives the power wheel 13 to rotate in its original position, thereby causing the two pressure wheels 4 to rotate on the rotating plate 3. The pressure wheel 4 rotates while driving the sleeve 5 to rotate. Under the action of the matching parts, the rotating sleeve 5 causes the sleeve 5 and the rotating plate 3 to rotate around the output shaft of the motor 12 as the rotating axis, thereby driving the sliding rod 10 to rotate in a circle (the sliding rod 10 rotates toward the fixed frame 1), acting on the positioning frame 2, and clamping the pull rod.

[0051] The two pressing wheels 4 rotate in opposite clockwise directions, thereby clamping the pull rod synchronously.

[0052] The mating part includes a fixed plate 14 connected and fixed to the frame on the machine tool, and a reciprocating screw 15 is threadedly connected to the fixed plate 14. The end of the reciprocating screw 15 is connected and fixed to the mating wheel 6. The mating wheel 6 is always pressed and matched with the inner wall of the sleeve 5 through the action of the compression spring 7, and the circumference of the mating wheel 6 is rollingly matched with the inner wall of the sleeve 5.

[0053] Under the action of the power part and the movable part, the sleeve 5 rotates with the pressure wheel 4. Under the action of the compression spring 7, the sleeve 5 always cooperates with the matching wheel 6 in friction and rolling. The sleeve 5 drives the matching wheel 6 to rotate, and the reciprocating screw rod 15 rotates, thereby causing the rotating matching wheel 6 to move toward the pressure wheel 4.

[0054] Under the action of the moving mating wheel 6, the rotating sleeve 5 drives the rotating plate 3 to rotate, so that the central axis of the sleeve 5 gradually coincides with the central axis of the mating wheel 6, and the rotating rotating plate 3 then drives the positioning frame 2 to move toward the fixed frame 1 through the movable parts. Under the action of the compression spring 7, the positioning frame 2 cooperates with the fixed frame 1 to tightly clamp the pull rod. At the same time, the rotating rotating plate 3 then drives the pressing wheel 4 to rotate close to the pull rod, further pressing and clamping the pull rod.

[0055] It is worth noting that: the fast rotation speed of the pressure wheel 4 will drive the sleeve 5 to rotate quickly, thereby making the reciprocating screw 15 rotate quickly. In order to avoid the durability of the reciprocating screw 15 and the matching wheel 6 being reduced due to excessive rotation speed, a reduction member 19 is provided at the end of the sleeve 5 and the center axis of the pressure wheel 4. The reduction member 19 can be a reducer or a small reduction box (a conventional technical structure), such as the NRV-E worm gear reducer produced by Shanghai Longsheng Machinery Equipment Co., Ltd., which has a small size, a large output torque, and a smooth transmission. The high-speed rotating pressure wheel 4 drives the sleeve 5 to rotate at a low speed through the reducer or reduction box to ensure the durability of the reciprocating screw 15 and the matching wheel 6.

[0056] The position in the middle of the rotating plate 3 corresponding to the contact position of the two pressing wheels 4 is in a U-shaped structure to leave space. When the two pressing wheels 4 press and contact the pull rod, they continue to rotate close to the pull rod and cut the pull rod under the action of the mounting plate 18 (a tool is mounted on the mounting plate 18). By setting the corresponding position of the rotating plate 3 to a U-shaped structure, the rotating plate 3 that continues to rotate is prevented from pressing and contacting the pull rod, causing the rotating plate 3 to be unable to rotate.

[0057] The sleeve 5 has a conical structure. Since the reciprocating screw 15 is always located on the fixed plate 14 and moves, when the matching wheel 6 rotates and moves close to the sleeve 5, under the reaction of the inclined surface inside the sleeve 5, the matching compression spring 7 makes the sleeve 5 automatically adjust its position while rotating, so that the middle part of the sleeve 5 gradually overlaps with the middle part of the matching wheel 6.

[0058] The outer surface of the sleeve 5 is provided with fan fins 16. The rotating sleeve 5 drives the fan fins 16 to rotate, which is convenient for cooling the motor 12 and helps to blow the cut debris into the pressure wheel 4 and the power wheel 13. According to actual needs, an air blowing device (conventional technology) can be appropriately added to further reduce the impact of the debris.

[0059] A plurality of avoidance grooves 17 with gaps are provided on the circumference of the pressure wheel 4 and the power wheel 13. A plurality of mounting plates 18 with gaps are fixedly connected to the circumference of the pressure wheel 4. The mounting plates 18 are used to install cutting tools. The mounting plates 18 are located between two adjacent avoidance grooves 17. In the present application, the pressure wheel 4 cooperates with the fixing frame 1 and the positioning frame 2 to further clamp the pull rod, and the pressure wheel 4 rotates to drive the mounting plates 18 (with cutting tools installed on the mounting plates 18) to rotate, so that the cutting process is carried out while clamping the pull rod, so that the cutting process is carried out in time while assisting the positioning, which is efficient and convenient. When the two pressure wheels 4 rotate, the mounting plates 18 on the upper pressure wheel 4 are plugged into and matched with the avoidance grooves 17 on the lower pressure wheel 4, and the mounting plates 18 of the lower pressure wheel 4 are plugged into and matched with the avoidance grooves 17 of the upper pressure wheel 4, and are also plugged into and matched with the avoidance grooves 17 on the power wheel 13.

[0060] The overall working process is as follows: first, move the positioning frame 2 so that the positioning frame 2 is close to the rotating plate 3, and then insert the pull rod into the positioning groove 9 on the fixed frame 1. Then, release the positioning frame 2 so that the positioning groove 9 of the positioning frame 2 is also pressed and fixed on the pull rod, so that the positioning frame 2 and the fixed frame 1 clamp the pull rod. However, the clamping force is not enough at this time, and the fastening effect is poor. Finally, start the motor 12. At this time, the mating wheel 6 is located at the edge of the larger end of the sleeve 5 (the central axis of the mating wheel 6 does not coincide with the central axis of the sleeve 5).

[0061] Restart the motor 12 to make it rotate, and the motor 12 drives the power wheel 13 to rotate. The meshing transmission makes the two pressure wheels 4 rotate, and the pressure wheel 4 drives the sleeve 5 to rotate, that is, the pressure wheel 4 and the sleeve 5 rotate on the rotating plate 3. Since the pull rod is clamped by the fixed frame 1 and the positioning frame 2, under the reaction of the compression spring 7, the inner wall of the rotating sleeve 5 is always tightly fitted with the outer wall of the matching wheel 6. When the sleeve 5 rotates, the matching wheel 6 rotates through friction rolling. At the same time, the matching wheel 6 drives the reciprocating screw 15 to rotate. The reciprocating screw 15 is screwed into the fixed plate 14 which is in a fixed position, so that the rotating matching wheel 6 moves in the direction away from the fixed plate 14, and the matching wheel 6 gradually approaches the end with the smaller port of the sleeve 5 (the central axis of the matching wheel 6 gradually coincides with the central axis of the sleeve 5).

[0062] At the same time, when the matching wheel 6 moves along the direction of the reciprocating screw 15, the moving direction of the matching wheel 6 remains constant and does not deflect, so that the rotating sleeve 5 makes a small-angle circular motion (with the output shaft of the motor 12 as the center of rotation), and synchronously, the rotating plate 3 and the pressure wheel 4 make a small-angle circular rotation in the direction of the pull rod (both with the output shaft of the motor 12 as the center of rotation).

[0063] The rotating plate 3 that makes a circular rotation and approaches the pull rod squeezes the compression spring 7, so that the positioning frame 2 presses the pull rod tightly, and cooperates with the fixing frame 1 to clamp the pull rod of the suitcase. At the same time, the pressing wheel 4 that approaches with the rotation of the rotating plate 3 presses the action pull rod, further clamping the fixed pull rod.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting positioning auxiliary device used in the production of luggage case tie rods, characterized in that: include: A fixed frame (1) fixed on a movable frame of a machine tool, wherein a positioning frame (2) is provided on the side of the fixed frame (1); Also includes: A rotating plate (3) and a movable part, wherein the rotating plate (3) is rotatably connected to two mutually rotatably matched pressing wheels (4), wherein a sleeve (5) is fixedly connected to the central axis of one of the pressing wheels (4), and a matching wheel (6) is movably matched in the sleeve (5), and a compression spring (7) is provided between the rotating plate (3) and the positioning frame (2), and the rotating plate (3) is located between the fixed frame (1) and the positioning frame (2) and is rotatable and movable, and the movable part causes the pressing wheel (4) to rotate, first driving the positioning frame (2) to rotate and fit the fixed frame (1) to clamp the pull rod, and then the two pressing wheels (4) rotate to further press the pull rod; The movable part comprises a power part and a sliding rod (10) connected and fixed to the top of the rotating plate (3); the sliding rod (10) is in an arc-shaped structure; one of the positioning frames (2) is provided with an arc-shaped groove (11) which is slidably matched with the sliding rod (10); the power part is used to drive the pressing wheel (4) to rotate; A matching piece, wherein the matching piece causes the sleeve (5) to rotate by means of the movable piece, and cooperates with the compression spring (7) to cause the matching wheel (6) to move and press against the sleeve (5) to correct the position, thereby causing the rotating plate (3) to rotate; The mating component comprises a fixing plate (14) connected and fixed to a frame on a machine tool, a reciprocating screw (15) being threadedly connected to the fixing plate (14), an end of the reciprocating screw (15) being connected and fixed to the mating wheel (6), the mating wheel (6) always being pressed and fitted with the inner wall of the sleeve (5) by the action of a compression spring (7), and the circumference of the mating wheel (6) being rollingly fitted with the inner wall of the sleeve (5).

2. The cutting positioning auxiliary device used in the production of luggage case tie rods according to claim 1, characterized in that: A connecting rod (8) is provided between the two positioning frames (2), the positioning frames (2) and the fixing frames (1) are arranged in a staggered manner, and the positioning frames (2) and the fixing frames (1) are both provided with positioning grooves (9) that cooperate with each other, and the positioning grooves (9) are used to clamp the pull rod.

3. The cutting positioning auxiliary device used in the production of luggage tie rods according to claim 2, characterized in that: The power component comprises a motor (12) connected and fixed to a frame on the machine tool, the output shaft of the motor (12) passes through the rotating plate (3) and is fixedly connected to a power wheel (13), and the pressure wheel (4) located at the bottom is rotatably matched with the power wheel (13).

4. The cutting positioning auxiliary device used in the production of luggage tie rods according to claim 1, characterized in that: The middle part of the rotating plate (3) corresponding to the contact position of the two pressing wheels (4) is in a U-shaped structure.

5. The cutting positioning auxiliary device used in the production of luggage tie rods according to claim 1, characterized in that: The sleeve (5) has a conical structure, and the outer surface of the sleeve (5) is provided with fan fins (16).

6. The cutting positioning auxiliary device used in the production of luggage case tie rods according to claim 3, characterized in that: The circumferences of the pressure wheel (4) and the power wheel (13) are both provided with a plurality of avoidance grooves (17) with gaps therebetween. The circumference of the pressure wheel (4) is fixedly connected with a plurality of mounting plates (18) with gaps therebetween. The mounting plates (18) are used for mounting a tool. The mounting plates (18) are located between two adjacent avoidance grooves (17).

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