A frame workpiece straightening device

Abstract

This invention relates to a frame workpiece straightening device, comprising an outer frame, a carriage assembly, and a straightening assembly. Lifting cylinders are respectively installed on the two side walls of the outer frame. The carriage assembly includes two carriages arranged opposite each other, and a support frame located at the rear of the carriages. Both ends of the carriages are connected to the piston rods of the lifting cylinders. The support frame is slidably mounted on a vertically arranged guide post. The straightening assembly includes a straightening cylinder slidably mounted laterally between the two carriages and at least two sliding blocks. A straightening seat is installed at the end of the piston rod of the straightening cylinder, and a positioning seat is installed on the front side of the sliding block. This invention uses the positioning seat to fix the position of the workpiece to be straightened, and the forward or backward pushing of the straightening seat corrects its horizontal deformation, ensuring straightening quality and improving straightening efficiency.

Description

Technical Field

[0001] This invention belongs to the field of frame workpiece straightening technology, and specifically relates to a frame workpiece straightening device. Background Technology

[0002] For frame-type workpieces such as the outer frame of a power control box, the main frame is welded from multiple square steel bars. During the welding process, deformation of the square steel bars is inevitable. Traditional straightening fixtures are generally only applicable to the vertical deformation correction, but cannot be used for the horizontal deformation. Manual straightening is not only inefficient, but also has poor correction effect, which directly affects the finished product quality of the workpiece. Summary of the Invention

[0003] The purpose of this invention is to provide a frame workpiece straightening device to solve the problem of poor workpiece straightening effect.

[0004] The frame workpiece straightening device of the present invention is implemented as follows:

[0005] A frame workpiece straightening device, comprising

[0006] The outer frame has lifting cylinders installed on its two side walls respectively.

[0007] A carriage assembly, comprising two carriages arranged opposite each other at the top and bottom, and a support frame disposed at the rear side of the carriages, wherein both ends of the carriages are connected to the piston rods of the lifting cylinder, and the support frame is slidably mounted on a vertically arranged guide column;

[0008] A correction assembly includes a correction cylinder that is laterally slidably mounted between two carriages and at least two slides. The piston rod of the correction cylinder is fitted with a correction seat at its end, and a positioning seat is fitted on the front side of the slide.

[0009] Furthermore, a lifting frame is installed at the same end of the two carriages, and the lifting frame is connected to the piston rod of the lifting cylinder on the same side.

[0010] Furthermore, a limit switch is installed at one rear end of the carriage, and a corresponding limit block is provided on the inner wall of the outer frame on the side where the limit switch is located.

[0011] Furthermore, the carriage is provided with two transverse sliding grooves arranged side by side, with the sliding grooves of the upper and lower carriages facing each other;

[0012] The corrective cylinder is laterally slidably disposed in a groove located on the rear side, and the slide block is laterally slidably disposed in a groove located on the front side.

[0013] Furthermore, the corrective cylinder is installed in a cylinder seat, and its piston rod is positioned forward;

[0014] A sliding sleeve is provided above the correction cylinder and installed on the front side of the cylinder seat. A sliding rod that can extend and retract within the sliding sleeve is provided at the front end of the sliding sleeve. The front end of the sliding rod is installed on the correction seat by a fixing block.

[0015] Furthermore, the top of the sliding sleeve is provided with a strip-shaped hole, and a contact rod connected to the sliding rod is provided in the strip-shaped hole. A pair of proximity switches that cooperate with the contact rod are provided on one side of the strip-shaped hole.

[0016] Furthermore, rollers are respectively provided at the top and bottom of the cylinder seat and the slide.

[0017] Furthermore, the support frame includes a slider that slides on the guide post and three connecting rods installed between the slider and the carriage, and the three connecting rods of the same support frame are arranged in a triangular configuration between each pair.

[0018] Furthermore, a cable chain groove is installed on the lower support frame, and a cable chain is installed in the cable chain groove.

[0019] Furthermore, both the correction seat and the positioning seat are provided with U-shaped grooves with upward openings.

[0020] After adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0021] The present invention can fix the position of the workpiece to be corrected by the positioning seat, and correct its horizontal deformation by pushing forward or pulling back the correction seat, thereby ensuring the correction quality and improving the correction efficiency. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a structural diagram of the frame workpiece straightening device of the present invention;

[0024] Figure 2 This is a structural diagram of the frame workpiece straightening device of the present invention;

[0025] Figure 3 This is a structural diagram of the carriage assembly of the frame workpiece straightening device of the present invention;

[0026] Figure 4 This is a structural diagram of the straightening seat portion of the straightening component of the frame workpiece straightening device of the present invention;

[0027] Figure 5 This is a structural diagram of the positioning seat portion of the correction component of the frame workpiece correction device of the present invention;

[0028] Figure 6This is a structural diagram of the outer frame of the frame workpiece straightening device of the present invention;

[0029] In the diagram: outer frame 1, lifting cylinder 11, guide column 12, base 13, side wall 14, top frame 15, mounting cavity 16, guide slide plate 17, limit stop 18, carriage assembly 2, carriage 21, support frame 22, lifting frame 23, lifting frame body 24, inner side plate 25, limit switch 26, slide groove 27, slider 28, connecting rod 29, drag chain groove 210, drag chain 211, weight reduction hole 212, straightening cylinder 31, slide seat 32, straightening seat 33, positioning seat 34, cylinder seat 35, sliding sleeve 36, slide rod 37, strip hole 38, contact rod 39, proximity switch 310, roller 311, U-shaped groove 312, anti-wear pad 313, fixing block 314, connecting rod 315. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] like Figure 1-6 As shown, a frame workpiece straightening device includes an outer frame 1, a slide assembly 2, and a straightening component. Lifting cylinders 11 are respectively installed on the two side walls 14 of the outer frame 1. The slide assembly 2 includes two slides 21 arranged opposite each other, and a support frame 22 arranged on the rear side of the slides 21. The two ends of the slides 21 are connected to the piston rods of the lifting cylinders 11. The support frame 22 is slidably installed on a vertically arranged guide column 12. The straightening component includes a straightening cylinder 31 slidably installed between the two slides 21 and at least two slide seats 32. A straightening seat 33 is installed at the end of the piston rod of the straightening cylinder 31, and a positioning seat 34 is installed on the front side of the slide seat 32.

[0033] Preferably, in order to facilitate the installation of the lifting cylinder 11, the carriage assembly 2 and the correction assembly, the outer frame 1 includes a base 13 and side walls 14 installed on both sides of the base 13, and a top frame 15 installed on the top of the side walls 14.

[0034] The side wall 14 has an installation cavity 16, and the lifting cylinder 11 is installed in the installation cavity 16 with the piston rod facing upward, and its bottom is fixed on the base 13.

[0035] During the straightening process, since the heights of workpieces of different specifications are different, it is necessary to adjust the height of the straightening seat 33 and the positioning seat 34 according to the height of the workpiece. Therefore, a lifting cylinder 11 is set up to achieve this function. In order to enable the two slides 21 to be lifted and lowered synchronously by the two lifting cylinders 11, a lifting frame 23 is installed on the same side end of the two slides 21. The lifting frame 23 is connected to the piston rod of the lifting cylinder 11 on its side.

[0036] Specifically, the lifting frame 23 includes a frame-like lifting frame body 24 with openings at the bottom and on the outside, and an inner side plate 25 with a width greater than that of the lifting frame body 24 is provided on the inner wall of the lifting frame body 24.

[0037] The upper end of the piston rod of the lifting cylinder 11 is fixed on the top wall of the lifting frame body 24. The lower opening of the lifting frame body 24 can increase the stroke range of the lifting cylinder 11. When the piston rod retracts, it can lower the lifting frame 23 until the lifting cylinder 11 is located inside the lifting frame body 24. The outer opening of the lifting frame body 24 can facilitate the installation of the lifting cylinder 11 and the lifting frame 23.

[0038] The width of the inner side plate 25 matches the width of the slide 21, which facilitates the connection between the lifting frame 23 and the slide 21.

[0039] In addition, guide slides 17 are provided on the side wall 14 of the mounting cavity 16 and on the inner side of the side wall 14. The two sides of the lifting frame body 24 move up and down in contact with the guide slides 17 on the side wall 14 of the mounting cavity 16, while the inner side plate 25 moves up and down in contact with the guide slides 17 on the inner side of the side wall 14, ensuring the smoothness and stability of the lifting frame 23 moving up and down.

[0040] Furthermore, the inner side plate 25 can fit against the inner side of the side wall 14, playing a certain guiding role during the up and down movement, and preventing the lifting frame 23 from moving out of the mounting cavity 16.

[0041] The two carriages 21 are connected to the upper and lower ends of the inner side plate 25, respectively.

[0042] In order to limit the vertical movement of the slide 21, namely the straightening seat 33 and the positioning seat 34, a limit switch 26 is installed at the rear end of the slide 21, and a corresponding limit block 18 is provided on the inner wall of the outer frame 1 on the side where the limit switch 26 is located.

[0043] Limit switches 26 are installed on each of the two carriages 21, and there are two limit blocks 18, which are installed downwards and opposite each other on the inner side of the same side wall 14. When the carriage 21 moves upward, the upper limit switch 26 touches the upper limit block 18, and the piston rod of the lifting cylinder 11 stops extending, and the carriage 21 stops rising. Similarly, when the carriage 21 moves downward, the lower limit switch 26 touches the lower limit block, and the piston rod of the lifting cylinder 11 stops retracting, and the carriage 21 stops descending.

[0044] Limit switch 26 is a commonly used roller-type limit switch, such as the Omron brand limit switch with model number D4V-8108SZ-N.

[0045] Since the position that needs to be corrected on the workpiece is not fixed, the lateral position of the straightening seat 33 and the positioning seat 34 needs to be adjusted. In order to realize the lateral movement of the straightening seat 33 and the positioning seat 34, two lateral slide grooves 27 are provided in the slide 21, which are arranged in parallel front to back, and the slide grooves 27 of the upper and lower slides 21 are arranged facing each other.

[0046] During the correction process, in order to fix the two sides of the position to be corrected, the positioning seats 34 are generally set on both sides of the correction seat 33. In order to ensure that the correction seat 33 and the positioning seat 34 do not affect each other during the movement, the correction cylinder 31 is laterally slidably set in the slide groove 27 located on the rear side, and the slide seat 32 is laterally slidably set in the slide groove 27 located on the front side.

[0047] During correction, the position to be corrected is determined, and the positioning seat 34 and the correction seat 33 are moved so that the correction seat 33 corresponds to the position to be corrected, while the positioning seat 34 is located on both sides of the position to be corrected, thereby fixing the workpiece. The correction seat 33 can then be used to correct the workpiece.

[0048] The extension and retraction of the piston rod of the straightening cylinder 31 drives the straightening seat 33 to move forward and backward, thereby correcting the horizontal deformation of the workpiece. In order to facilitate the installation of the straightening cylinder 31, the straightening cylinder 31 is installed in the cylinder seat 35, and its piston rod is set forward.

[0049] The cylinder seat 35 is installed between the two slides 21 and is slidably mounted in the slide groove 27 located on the rear side, so as to move left and right in the slide groove 27.

[0050] In order to guide the forward and backward movement of the correction seat 33, a sliding sleeve 36 is provided above the correction cylinder 31 and installed on the front side of the cylinder seat 35. A sliding rod 37 that can extend and retract within the sliding sleeve 36 is provided at the front end of the sliding sleeve 36. The front end of the sliding rod 37 is installed on the correction seat 33 through a fixing block 314.

[0051] Specifically, the sliding sleeve 36 is installed on the front side of the cylinder seat 35 and is located above the piston rod of the straightening cylinder 31. The sliding rod 37 is arranged parallel to the piston rod of the straightening cylinder 31. When the piston rod retracts, the straightening seat 33 moves backward, and the sliding rod 37 retracts into the sliding sleeve 36. When the piston rod extends, the straightening seat 33 moves forward, and the sliding rod 37 extends out of the sliding sleeve 36.

[0052] In order to limit the forward and backward movement of the correction seat 33, a strip hole 38 is provided on the top of the sliding sleeve 36, and a contact rod 39 connected to the slide rod 37 is provided in the strip hole 38. A pair of proximity switches 310 that cooperate with the contact rod 39 are provided on one side of the strip hole 38.

[0053] The length direction of the strip-shaped hole 38 is the same as the length direction of the slide rod 37. Two proximity switches 310 are located at the front and rear ends on the same side of the strip-shaped hole 38, respectively. The piston rod of the straightening cylinder 31 extends out, and at the same time, the slide rod 37 extends out from the sliding sleeve 36. When the contact rod 39 moves to the front end of the strip-shaped hole 38, it triggers the proximity switch 310 located at the front end, and the straightening cylinder 31 stops moving, indicating that the straightening seat 33 is at the front end of its stroke range. The piston rod of the straightening cylinder 31 retracts, and the slide rod 37 retracts into the sliding sleeve 36. When the contact rod 39 moves to the rear end of the strip-shaped hole 38, it triggers the proximity switch 310 located at the rear end, and the straightening cylinder 31 stops moving, indicating that the straightening seat 33 is at the rear end of its stroke range.

[0054] The proximity switch 310 is a commonly used inductive proximity switch, such as the Pepperl+Fuchs brand inductive contact switch with model number NBN10-F10-E2-V1.

[0055] The straightening seat 33 can be adjusted freely within its stroke range according to the degree of correction required for the workpiece.

[0056] To reduce friction during the lateral movement of the cylinder seat 35 and slide 32 within the carriage 21 and to increase ease of movement, rollers 311 are provided at the top and bottom of the cylinder seat 35 and slide 32, respectively.

[0057] In this embodiment, two slides 32 and two positioning seats 34 are provided, and the slide 32 is connected to the positioning seat 34 through a connecting rod 315. Preferably, in order to reduce the weight of the slide 32, the slide 32 has a C-shaped structure with the opening facing backward.

[0058] To ensure the stability of the carriage 21, the support frame 22 includes a slider 28 that slides on the guide post 12, and three connecting rods 29 installed between the slider 28 and the carriage 21. The three connecting rods 29 of the same support frame 22 are arranged in a triangular configuration between each pair.

[0059] Specifically, the top of the guide post 12 is connected to the top frame 15, and the bottom is fixed to the base 13. The slider 28 is a split structure, which is connected by bolts and then fitted onto the guide post 12. Among the three connecting rods 29, the front ends of the connecting rods 29 on both sides are connected to the two ends of the rear side of the slide 21, and the front end of the connecting rod 29 in the middle is connected to the middle of the rear side of the slide 21, forming a triangular distribution to ensure the stability of the slide 21.

[0060] The straightening cylinder 31 needs to be connected to an air source through an air pipe. In order to facilitate the arrangement of the air pipe, a drag chain groove 210 is installed on the support frame 22 located on the lower side, and a drag chain 211 is installed in the drag chain groove 210.

[0061] The air pipe can be installed inside the cable chain 211. When the cylinder seat 35 drives the straightening cylinder 31 to move laterally, the cable chain 211 can move with the straightening cylinder 31 in the cable chain groove 210, thereby ensuring the connection between the straightening cylinder 31 and the air source.

[0062] The commonly used frame workpieces are made of square steel welded together. In order to facilitate the cooperation with the workpiece during the correction process, the correction seat 33 and the positioning seat 34 are both provided with U-shaped grooves 312 with the opening facing upward.

[0063] During workpiece straightening, the beam to be straightened is placed in the U-shaped groove 312 of the positioning seat 34. If the part to be straightened is deformed forward, the part to be straightened is placed in the U-shaped groove 312 of the straightening seat 33. The piston rod of the straightening cylinder 31 retracts, pulling the straightening seat 33 backward, thereby pulling the part to be straightened backward to achieve the straightening effect. If the part to be straightened is deformed backward, the part to be straightened can also be placed in the U-shaped groove 312 of the straightening seat 33. The piston rod of the straightening cylinder 31 extends, pushing the straightening seat 33 forward, thereby pushing the part to be straightened forward to achieve the straightening effect. In this case, the workpiece can also be placed directly on the front side of the straightening seat 33. When the piston rod of the straightening cylinder 31 extends, the part to be straightened is pushed forward directly through the front side of the straightening seat 33, which can also achieve the straightening of the workpiece.

[0064] Preferably, the U-shaped groove 312 is provided with an anti-wear pad 313, which can prevent wear on the workpiece during the straightening process.

[0065] Anti-abrasion pads 313 can be made of, but are not limited to, rubber.

[0066] Preferably, the slide 21 and the lifting frame 23 are provided with multiple weight reduction holes 212, which can reduce the weight of the entire straightening equipment and reduce costs.

[0067] During workpiece straightening, the placement of the workpiece is adjusted, and the beam to be straightened is placed horizontally, parallel to the direction of the carriage 21. The height of the straightening seat 33 and the positioning seat 34 are first adjusted according to the height of the beam to be straightened. Then, the horizontal position of the straightening seat 33 and the positioning seat 34 is determined according to the position to be straightened. The beam to be straightened is placed in the U-shaped groove 312 of the straightening seat 33 and the positioning seat 34, and the position to be straightened is within the straightening seat 33. Then, the entire workpiece is fixed on the front side of the straightening equipment. Then, the retraction or extension of the straightening cylinder 31 is used to drive the straightening seat 33 to move backward or forward, thereby achieving precise straightening of the workpiece.

[0068] The straightening equipment provided by this invention can correct the horizontal deformation of frame workpieces of various specifications. The straightening process is simple, which not only improves the straightening efficiency, but also has a good straightening effect and ensures the finished product quality of the workpiece.

[0069] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A frame workpiece straightening device, characterized in that, include An outer frame (1) is provided, and lifting cylinders (11) are respectively installed on the two side walls of the outer frame (1); The carriage assembly (2) includes two carriages (21) arranged opposite each other at the top and bottom, and a support frame (22) arranged on the rear side of the carriages (21). The two ends of the carriages (21) are connected to the piston rods of the lifting cylinder (11), and the support frame (22) is slidably mounted on a vertically arranged guide column (12). The correction assembly includes a correction cylinder (31) that is laterally slidably mounted between two slides (21) and at least two slides (32). The piston rod of the correction cylinder (31) is fitted with a correction seat (33) at its end, and a positioning seat (34) is fitted on the front side of the slide (32). Lifting frame (23) is installed on the same side end of the two slides (21), and the lifting frame (23) is connected to the piston rod of the lifting cylinder (11) on the same side; The lifting frame (23) includes a frame-like structure lifting frame body (24) with openings at the bottom and on the outside, and the upper end of the piston rod of the lifting cylinder (11) is fixed to the top wall of the lifting frame body (24). Two slides (32) and two positioning seats (34) are provided, with the positioning seats (34) respectively located on both sides of the correction seat (33); The slide (21) is provided with two transverse slide grooves (27) arranged side by side, and the slide grooves (27) of the upper and lower slides (21) are arranged facing each other; The corrective cylinder (31) is laterally slidably disposed in the slide groove (27) located on the rear side, and the slide block (32) is laterally slidably disposed in the slide groove (27) located on the front side; The corrective cylinder (31) is installed in the cylinder seat (35), and its piston rod is positioned forward; Above the correction cylinder (31) is a sliding sleeve (36) installed on the front side of the cylinder seat (35). The front end of the sliding sleeve (36) is provided with a sliding rod (37) that can extend and retract within the sliding sleeve (36). The front end of the sliding rod (37) is installed on the correction seat (33) by a fixing block (314). The top of the sliding sleeve (36) is provided with a strip-shaped hole (38), and a contact rod (39) connected to the sliding rod (37) is provided in the strip-shaped hole (38). A pair of proximity switches (310) cooperating with the contact rod (39) are provided on one side of the strip-shaped hole (38). The support frame (22) includes a slider (28) that slides on the guide post (12) and three connecting rods (29) installed between the slider (28) and the carriage (21), and the three connecting rods (29) of the same support frame (22) are arranged in a triangular configuration between each other.

2. The frame workpiece straightening device according to claim 1, characterized in that, A limit switch (26) is installed at one end of the rear side of the slide (21), and a corresponding limit block (18) is provided on the inner wall of the outer frame (1) on the side where the limit switch (26) is located.

3. The frame workpiece straightening device according to claim 1, characterized in that, Rollers (311) are respectively provided on the top and bottom of the cylinder seat (35) and the slide (32).

4. The frame workpiece straightening device according to claim 1, characterized in that, A cable chain groove (210) is installed on the lower support frame (22), and a cable chain (211) is installed in the cable chain groove (210).

5. The frame workpiece straightening device according to claim 1, characterized in that, Both the correction seat (33) and the positioning seat (34) are provided with U-shaped grooves (312) with the opening facing upwards.

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