Bending mechanism for sheet metal machining

Abstract

The utility model discloses a bending mechanism for sheet metal working, and relates to the technical field of machining, the bending mechanism comprises a main body, the main body comprises a fixed table, a screw rod, a connecting block and a supporting plate, the screw rod is connected to the outer wall of the fixed table, the connecting block is rotatably connected to one end of the screw rod, and the connecting block is rotatably connected to one end of the fixed table; the fixing mechanism comprises a ratchet wheel, a clamping block and a rotating block. Through the arrangement of the fixing mechanism, when the lead screw rotates, the lead screw rotates to drive the ratchet wheel to rotate, after the connecting block moves to a proper position, the movable block moves under the action of the elastic force of the attaching spring, the movable block moves to drive the clamping block to rotate to be attached to the ratchet wheel, the ratchet wheel is fixed, and therefore the connecting block is fixed; and when fixation is cancelled, the rotating block is rotated, and the rotating block rotates to drive the clamping block to be separated from the ratchet wheel, so that fixation of the connecting block is cancelled, and rapid fixation of the connecting block is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a bending mechanism for sheet metal processing. Background Art

[0002] A bending machine for processing stamping equipment is an auxiliary device for bending a workpiece, which has been widely used in the field of mechanical processing; the existing bending machine for processing stamping equipment includes a bending machine body; when the existing bending machine for processing stamping equipment is used, the workpiece is directly removed for use after being bent on the bending machine body.

[0003] According to Chinese patent number CN213256446U, a bending machine for processing a pressing device is provided, which avoids deformation rebound of the bent part of the workpiece due to the influence of gravity or other forces, improves the bending effect, and improves practicality.

[0004] During use, the above patent drives the connecting block to move by rotating the screw rod. After the connecting block is moved, there is no structure to fix the connecting block, so a structure is needed to fix the connecting block. At the same time, after the pressure rod fixes the workpiece, the pressure rod and the slider are fixed with bolts. After long-term use, the bolts are prone to loosening, so a structure is needed to fix the pressure rod. Utility Model Content

[0005] The utility model aims to provide a bending mechanism for sheet metal processing in order to solve the problem that a structure is needed to fix a connecting block and a pressure rod.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bending mechanism for sheet metal processing, comprising:

[0007] The main body includes a fixed platform, a screw rod, a connecting block and a supporting plate, wherein the screw rod is connected to the outer wall of the fixed platform, the connecting block is rotatably connected to one end of the screw rod, and the supporting plate is rotatably connected to one end of the fixed platform;

[0008] The fixing mechanism comprises a ratchet, a clamping block and a rotating block, wherein the ratchet is fixedly connected to the outer wall of the screw rod, the outer wall of the ratchet contacts the outer wall of the connecting block, the clamping block is connected to the outer wall of the connecting block and one side of the ratchet, and the rotating block is rotatably connected to the top end of the connecting block;

[0009] The limiting mechanism is arranged on the outer wall of the supporting plate to clamp and fix the workpiece.

[0010] As a further scheme of the utility model: the limiting mechanism includes a sliding frame, a pressure rod, a fixed rod, a fixed seat and a sliding block, the sliding frame is slidably connected to the outer wall of the support plate, the pressure rod is slidably connected to the inner wall of the sliding frame, the fixed rod is fixed to the top of the pressure rod, the fixed rod passes through the sliding frame, the fixed seat is fixedly connected to the top of the sliding frame, the sliding block is slidably connected to one end of the fixed seat, the top of the fixed seat is connected to a rotating plate, the bottom end of the rotating plate is fixedly connected to a gear, the outer wall of the gear is connected to a pushing block, a connecting spring is connected between the pushing block and the sliding block, a limiting block is set on one side of the rotating plate, one end of the limiting block is connected to the limiting spring, and one end of the limiting spring is connected to the fixed seat.

[0011] As a further solution of the utility model: the bottom end of the rotating block is fixedly connected to a threaded rod, the outer wall of the threaded rod is connected to a movable block, the bottom end of the movable block is connected to a fitting spring, one end of the fitting spring is connected to the connecting block, the outer wall of the movable block is connected to a connecting rod, and one end of the connecting rod is fixedly connected to the clamping block.

[0012] As a further solution of the utility model: the inner wall of the movable block is provided with an internal thread, the external thread of the threaded rod is fitted with the internal thread of the movable block, the outer wall of the movable block is provided with a tooth groove, the outer wall of the connecting rod is provided with gear teeth, and the gear teeth of the connecting rod are meshed with the tooth grooves of the movable block.

[0013] As a further solution of the utility model: the inner wall of the sliding frame is provided with a sliding groove, the inner wall of the sliding groove is fitted with the outer wall of the pressure rod, the top of the sliding frame is provided with a through hole, the inner wall of the through hole is fitted with the outer wall of the fixed rod, the outer wall of the fixed rod is provided with a ratchet, and one end of the sliding block is an inclined surface.

[0014] As a further solution of the utility model: the gear is connected to the fixed seat through a rotating shaft, a movable groove is provided at the top of the fixed seat, the inner wall of the movable groove is fitted with the outer wall of the rotating plate, and the other end of the limit block is a circular surface.

[0015] As a further solution of the utility model: a tooth groove is arranged at the top end of the pushing block, and the gear teeth of the gear mesh with the tooth groove of the pushing block.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By setting a fixing mechanism, when the screw rod is rotated, the screw rod rotates to drive the ratchet wheel to rotate. After the connecting block is displaced to a suitable position, the movable block is displaced by the elastic force of the fitting spring. The displacement of the movable block drives the clamping block to rotate and fit with the ratchet wheel to fix the ratchet wheel, thereby fixing the connecting block to prevent the connecting block from being displaced by force. When canceling the fixation, the rotating block is rotated, and the rotating block rotates to drive the clamping block to separate from the ratchet wheel, thereby canceling the fixation of the connecting block, which is convenient for fast fixing of the connecting block.

[0018] 2. By setting a limit mechanism, when the pressure rod is fixed, the pressure rod is displaced downward, the pressure rod displacement clamps the workpiece, the pressure rod displacement drives the fixing rod to move, after the fixing rod moves to a suitable position, the slider fits with the ratchet to fix the pressure rod, and when the pressure rod is canceled, the rotating plate is rotated, the rotating plate rotation drives the gear to rotate, the gear rotation drives the push block to move, the push block displacement drives the slider to move and separate from the fixing rod through the connecting spring, thereby canceling the fixation of the pressure rod and facilitating the rapid fixation of the pressure rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation of the fixing mechanism of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the limiting mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the installation of some parts of the limiting mechanism of the utility model.

[0023] In the figure: 1. main body; 101. fixed platform; 102. screw rod; 103. connecting block; 104. support plate; 2. fixing mechanism; 201. ratchet; 202. clamping block; 203. rotating block; 204. threaded rod; 205. movable block; 206. fitting spring; 207. connecting rod; 3. limiting mechanism; 301. sliding frame; 302. pressure rod; 303. fixing rod; 304. fixing seat; 305. rotating plate; 306. sliding block; 307. gear; 308. pushing block; 309. connecting spring; 310. limiting block; 311. limiting spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 to Figure 4 In an embodiment of the utility model, a bending mechanism for sheet metal processing includes:

[0026] The main body 1 includes a fixed platform 101, a screw rod 102, a connecting block 103 and a supporting plate 104. The screw rod 102 is connected to the outer wall of the fixed platform 101, the connecting block 103 is rotatably connected to one end of the screw rod 102, and the supporting plate 104 is rotatably connected to one end of the fixed platform 101;

[0027] The fixing mechanism 2 includes a ratchet 201, a clamping block 202 and a rotating block 203. The ratchet 201 is fixedly connected to the outer wall of the screw rod 102. The outer wall of the ratchet 201 contacts the outer wall of the connecting block 103. The clamping block 202 is connected to the outer wall of the connecting block 103 and one side of the ratchet 201. The rotating block 203 is rotatably connected to the top of the connecting block 103.

[0028] The limiting mechanism 3 is arranged on the outer wall of the supporting plate 104 to clamp and fix the workpiece.

[0029] Please refer to Figure 3 and Figure 4 The limiting mechanism 3 includes a sliding frame 301, a pressure rod 302, a fixed rod 303, a fixed seat 304 and a slider 306. The sliding frame 301 is slidably connected to the outer wall of the support plate 104, the pressure rod 302 is slidably connected to the inner wall of the sliding frame 301, the fixed rod 303 is fixed to the top of the pressure rod 302, the fixed rod 303 passes through the sliding frame 301, the fixed seat 304 is fixedly connected to the top of the sliding frame 301, and the slider 306 is slidably connected to one side of the fixed seat 304. The top end of the fixed seat 304 is connected to a rotating plate 305, the bottom end of the rotating plate 305 is fixedly connected to a gear 307, the outer wall of the gear 307 is connected to a pushing block 308, a connecting spring 309 is connected between the pushing block 308 and the slider 306, a limiting block 310 is provided on one side of the rotating plate 305, one end of the limiting block 310 is connected to a limiting spring 311, and one end of the limiting spring 311 is connected to the fixed seat 304, so as to fix the pressure rod 302.

[0030] Please refer to Figure 1 and Figure 2The bottom end of the rotating block 203 is fixedly connected with a threaded rod 204, the outer wall of the threaded rod 204 is connected with a movable block 205, the bottom end of the movable block 205 is connected with a fitting spring 206, one end of the fitting spring 206 is connected to the connecting block 103, the outer wall of the movable block 205 is connected with a connecting rod 207, one end of the connecting rod 207 is fixedly connected with the clamping block 202, so as to fix the connecting block 103.

[0031] Please refer to Figure 1 and Figure 2 The inner wall of the movable block 205 is provided with an internal thread, and the external thread of the threaded rod 204 fits with the internal thread of the movable block 205, so that the threaded rod 204 rotates to drive the movable block 205 to move. The outer wall of the movable block 205 is provided with a tooth groove, and the outer wall of the connecting rod 207 is provided with a gear tooth. The gear teeth of the connecting rod 207 are meshed with the tooth groove of the movable block 205, so that the movable block 205 is displaced and drives the connecting rod 207 to rotate.

[0032] Please refer to Figure 3 and Figure 4 The inner wall of the sliding frame 301 is provided with a sliding groove, and the inner wall of the sliding groove fits with the outer wall of the pressure rod 302, so that the pressure rod 302 can slide in the sliding groove. The top of the sliding frame 301 is provided with a through hole, and the inner wall of the through hole fits with the outer wall of the fixed rod 303, so that the fixed rod 303 can slide in the through hole. The outer wall of the fixed rod 303 is provided with a ratchet, and one end of the slider 306 is an inclined surface, so that the slider 306 fits with the ratchet to fix the fixed rod 303.

[0033] Please refer to Figure 3 and Figure 4 The gear 307 is connected to the fixed seat 304 through a rotating shaft, which is convenient for the gear 307 and the fixed seat 304 to rotate relative to each other. A movable groove is provided at the top of the fixed seat 304, and the inner wall of the movable groove fits with the outer wall of the rotating plate 305, which is convenient for the rotating plate 305 to slide in the movable groove. The other end of the limit block 310 is a round surface, which is convenient for the limit block 310 to be displaced under force.

[0034] Please refer to Figure 3 and Figure 4 The top of the push block 308 is provided with a tooth groove, and the gear teeth of the gear 307 are meshed with the tooth groove of the push block 308, so that the gear 307 rotates to drive the push block 308 to move.

[0035] The working principle of the utility model is: first, when the screw rod 102 is rotated, the screw rod 102 rotates to drive the ratchet 201 to rotate. After the connecting block 103 is displaced to a suitable position, the movable block 205 is displaced by the elastic force of the fitting spring 206. The displacement of the movable block 205 drives the connecting rod 207 to rotate. The rotation of the connecting rod 207 drives the clamping block 202 to rotate and fit with the ratchet 201 to fix the ratchet 201, thereby fixing the connecting block 103 to prevent the connecting block 103 from being displaced by force. When canceling the fixation, the rotating block 203 is rotated, and the rotating block 203 rotates to drive the threaded rod 204 to rotate. The threaded rod 204 rotates to drive the movable block 205 to displace. The displacement of the movable block 205 drives the clamping block 202 to separate from the ratchet 201, thereby removing the fixing. The fixing of the connecting block 103 is eliminated, so that the connecting block 103 can be quickly fixed. When the pressure rod 302 is fixed, the pressure rod 302 is displaced downward, and the pressure rod 302 is displaced to clamp the workpiece. The displacement of the pressure rod 302 drives the fixing rod 303 to move. After the fixing rod 303 moves to a suitable position, the slider 306 fits with the ratchet to fix the pressure rod 302. When the fixing of the pressure rod 302 is cancelled, the rotating plate 305 is rotated, and the rotating plate 305 rotates to drive the gear 307 to rotate. The gear 307 rotates to drive the pushing block 308 to move. The pushing block 308 moves and drives the slider 306 to move and separate from the fixing rod 303 through the connecting spring 309, thereby canceling the fixing of the pressure rod 302, which is convenient for quickly fixing the pressure rod 302.

[0036] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bending mechanism for sheet metal processing, characterized in that: include: The main body (1) comprises a fixed platform (101), a screw rod (102), a connecting block (103) and a supporting plate (104), wherein the screw rod (102) is connected to the outer wall of the fixed platform (101), the connecting block (103) is rotatably connected to one end of the screw rod (102), and the supporting plate (104) is rotatably connected to one end of the fixed platform (101); The fixing mechanism (2) comprises a ratchet (201), a clamping block (202) and a rotating block (203), wherein the ratchet (201) is fixedly connected to the outer wall of the screw rod (102), the outer wall of the ratchet (201) is in contact with the outer wall of the connecting block (103), the clamping block (202) is connected to the outer wall of the connecting block (103) and one side of the ratchet (201), and the rotating block (203) is rotatably connected to the top end of the connecting block (103); The limiting mechanism (3) is arranged on the outer wall of the supporting plate (104) to clamp and fix the workpiece.

2. A bending mechanism for sheet metal processing according to claim 1, characterized in that: The limiting mechanism (3) comprises a sliding frame (301), a pressure rod (302), a fixed rod (303), a fixed seat (304) and a sliding block (306); the sliding frame (301) is slidably connected to the outer wall of the support plate (104); the pressure rod (302) is slidably connected to the inner wall of the sliding frame (301); the fixed rod (303) is fixed to the top end of the pressure rod (302); the fixed rod (303) passes through the sliding frame (301); the fixed seat (304) is fixedly connected to the top end of the sliding frame (301); the sliding block (306) is slidably connected to the fixed rod (303); One end of the fixed seat (304), the top end of the fixed seat (304) is connected to a rotating plate (305), the bottom end of the rotating plate (305) is fixedly connected to a gear (307), the outer wall of the gear (307) is connected to a pushing block (308), a connecting spring (309) is connected between the pushing block (308) and the slider (306), a limiting block (310) is provided on one side of the rotating plate (305), one end of the limiting block (310) is connected to a limiting spring (311), and one end of the limiting spring (311) is connected to the fixed seat (304).

3. A bending mechanism for sheet metal processing according to claim 1, characterized in that: The bottom end of the rotating block (203) is fixedly connected to a threaded rod (204), the outer wall of the threaded rod (204) is connected to a movable block (205), the bottom end of the movable block (205) is connected to a fitting spring (206), one end of the fitting spring (206) is connected to the connecting block (103), the outer wall of the movable block (205) is connected to a connecting rod (207), and one end of the connecting rod (207) is fixedly connected to the clamping block (202).

4. A bending mechanism for sheet metal processing according to claim 3, characterized in that: The inner wall of the movable block (205) is provided with an internal thread, the external thread of the threaded rod (204) is fitted with the internal thread of the movable block (205), the outer wall of the movable block (205) is provided with a tooth groove, the outer wall of the connecting rod (207) is provided with gear teeth, and the gear teeth of the connecting rod (207) are meshed with the tooth groove of the movable block (205).

5. The bending mechanism for sheet metal processing according to claim 2, characterized in that: The inner wall of the sliding frame (301) is provided with a sliding groove, the inner wall of the sliding groove is in contact with the outer wall of the pressure rod (302), the top of the sliding frame (301) is provided with a through hole, the inner wall of the through hole is in contact with the outer wall of the fixed rod (303), the outer wall of the fixed rod (303) is provided with ratchet teeth, and one end of the sliding block (306) is an inclined surface.

6. A bending mechanism for sheet metal processing according to claim 2, characterized in that: The gear (307) is connected to the fixed seat (304) via a rotating shaft. A movable groove is provided at the top of the fixed seat (304). The inner wall of the movable groove fits with the outer wall of the rotating plate (305). The other end of the limit block (310) is a round surface.

7. A bending mechanism for sheet metal processing according to claim 2, characterized in that: The top end of the pushing block (308) is provided with a tooth groove, and the gear teeth of the gear (307) are meshed with the tooth groove of the pushing block (308).

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