CN207615420U - Sheet metal component bender - Google Patents

Abstract

The utility model discloses a bending machine for sheet metal parts, which comprises a machine body, a tool and a press-down hydraulic cylinder, the press-down hydraulic cylinder is fixedly connected with the machine body, a worktable is arranged on the machine body, and The clamping device clamps the sheet metal by abutting against the sheet metal, and the clamping device is arranged on one side of the workbench. When bending a sheet metal part, the workpiece is placed on the workbench, and the clamping device on one side of the workbench clamps the sheet metal part by abutting against the sheet metal part; the piston rod of the press-down hydraulic cylinder extends out , so as to drive the tool to move towards the workbench, thereby bending the sheet metal parts on the workbench; after the bending is completed, press down the hydraulic cylinder piston rod to retract, thereby driving the tool to move away from the workbench; sheet metal Under the clamping action of the clamping device, the part maintains the position after bending, thereby reducing the shaking of the sheet metal part during the tool return process, thereby reducing the damage to the surface of the sheet metal part.

Description

Sheet Metal Bending Machine

technical field

The utility model relates to the field of sheet metal bending, in particular to a sheet metal bending machine.

Background technique

A sheet metal part is a thin metal plate (thickness is usually less than 6mm), and the sheet metal part needs to be bent when using the sheet metal part.

The existing bending machine includes a workbench, a tool that is vertically slidably connected to the workbench, and an oil cylinder that drives the tool to move. The material is manually placed on the workbench, and the workpiece is bent by moving the tool up and down. .

However, during bending, the sheet metal part rotates around the contact position between the tool and the sheet metal part; when the bending is completed, the tool is separated from the sheet metal part, and the bent sheet metal part shakes, causing damage to the surface of the sheet metal part damage.

Utility model content

The purpose of this utility model is to provide a sheet metal bending machine, which has the advantage of reducing the shaking of the sheet metal by clamping the sheet metal, thereby reducing the damage on the surface of the sheet metal.

The above purpose of the utility model is achieved through the following technical solutions: a bending machine for sheet metal parts, including a machine body, a tool connected to the machine body by vertical sliding, and a press-down hydraulic cylinder that drives the tool to rise or fall. The press-down hydraulic cylinder is fixedly connected with the body, the body is provided with a workbench that cooperates with the tool to bend the sheet metal, and the body is provided with a workbench for bending the sheet metal by contacting the sheet metal. A clamping device for clamping, the clamping device is arranged on one side of the workbench.

Through the above technical solution, when bending a sheet metal part, the workpiece is placed on the workbench, and the clamping device on one side of the workbench clamps the sheet metal part by abutting against the sheet metal part; the hydraulic cylinder is pressed down The piston rod of the hydraulic cylinder is stretched out, thereby driving the tool to move to the worktable, thereby bending the sheet metal parts on the workbench; Direction movement; under the clamping action of the clamping device, the sheet metal part maintains the position after bending, thereby reducing the shaking of the sheet metal part during the return process of the tool, thereby reducing the damage to the surface of the sheet metal part.

Preferably, the clamping device includes a support frame fixed on one side of the bottom end of the machine body and a clamping assembly for clamping the sheet metal by approaching or moving away from it, the clamping assembly is arranged on both sides of the support frame and Sliding connection with support frame.

Preferably, a crossbeam is arranged on the support frame, and the clamping assembly includes a sliding block slidably connected to the crossbeam, a clamping rod hinged to the top end of the sliding block, a lifting rod slidably connected to the clamping rod, and The clamping part is hinged with the top of the lifting rod. The hinged part of the clamping rod and the sliding block is provided with a non-return assembly that restricts the reverse rotation of the clamping rod through abutment. The rotation direction of the clamping rod is toward the body; The clamping rod is provided with a backstop assembly that restricts the retraction of the lifting rod to the clamping rod through abutment.

Through the above technical solution, the clamping part clamps the sheet metal parts. During the bending process of the sheet metal parts, the lifting rod slides on the clamping rod in a direction away from the clamping rod. Retract the assembly, so that the lifting rod is fixed at the position after sliding; the clamping rod rotates towards the direction close to the workbench, and through the non-return component on the sliding block, the clamping rod is restricted from rotating to the side away from the workbench. Thus, the clamping rod is fixed in the rotated position.

Preferably, the clamping portion includes a clamping block hinged to the top end of the lifting rod, a rotor rotatably connected to the clamping block, and a clamping block screwed to the rotor.

Through the above technical solution, the rotor is rotated so that the clamping block approaches or moves away from the clamping block, thereby clamping the sheet metal between the clamping block and the clamping block.

Preferably, the non-return assembly includes a ratchet fixedly connected to the clamping rod and a pawl rotatably connected to the sliding block and matched with the ratchet, and a torsion spring is provided at the rotational connection between the pawl and the sliding block.

Through the above technical solution, the pawl abuts against the ratchet wheel through the action of the torsion spring, thereby restricting the rotation of the clamping rod away from the worktable.

Preferably, a plurality of sawtooths are fixedly connected to the lifting rod, and a lift slot for the sliding of the sawtooth is provided on the clamping rod, and the anti-retraction assembly includes a limit block fixed on the clamping rod, and a limiter. The anti-retraction rod connected by the slide block and the anti-retraction block arranged at one end of the anti-retraction rod and meshed with the saw teeth, the anti-retraction rod is sleeved with a non-retraction spring, one end of the anti-retraction spring is fixedly connected with the anti-retraction block, and the other end Fixed connection with the limit block.

Through the above technical solution, the movement of the lifting rod in the direction close to the clamping rod is restricted by the abutment between the anti-retraction block and the sawtooth.

Preferably, one side of the support frame is rotatably connected with a lead screw, and the other side is fixedly connected with a guide post, one end of the beam is screwed to the lead screw, and the other end is slidably connected to the guide post.

Through the above technical scheme, turning the lead screw drives the beam to move on the lead screw, thereby adjusting the distance between the clamping rod and the workbench, thereby facilitating the clamping of the sheet metal parts; through the guide column on the support frame, the Smoother crosshead movement.

Preferably, a fixing bolt is threadedly connected to the sliding block, and one end of the fixing bolt abuts against the beam.

Through the above technical solution, the fixing bolt abuts against the cross beam, thereby fixing the sliding block on the cross beam, thereby reducing the displacement of the sliding block on the cross beam, thereby facilitating the clamping of the sheet metal parts.

To sum up, the utility model has the following beneficial effects: when bending a sheet metal part, the workpiece is placed on the workbench, and the clamping device on one side of the workbench abuts the sheet metal part so that the sheet metal part Clamping; the piston rod of the hydraulic cylinder is stretched out, thereby driving the tool to move to the worktable, so as to bend the sheet metal parts on the worktable; after the bending is completed, the piston rod of the hydraulic cylinder is retracted, In this way, the tool is driven to move away from the worktable; under the clamping action of the clamping device, the sheet metal part maintains the position after bending, thereby reducing the shaking of the sheet metal part during the tool return process, thereby reducing the surface area of the sheet metal part. damage; the clamping part clamps the sheet metal parts. During the bending process of the sheet metal parts, the lifting rod slides on the clamping rod in a direction away from the clamping rod, and passes through the backstop assembly on the clamping rod , so that the lifting rod is fixed at the position after sliding; the clamping rod rotates toward the direction close to the workbench, and the non-return assembly on the sliding block restricts the rotation of the clamping rod to the side away from the workbench, so that The clamping rod is fixed at the position after rotation; turning the lead screw drives the crossbeam to move on the lead screw, thereby adjusting the distance between the clamping rod and the worktable, so as to facilitate the clamping of sheet metal parts; Guide pillars, so that the beam moves more smoothly.

Description of drawings

Fig. 1 is the overall schematic diagram embodying the utility model;

Fig. 2 is a schematic diagram embodying the bending assembly in Fig. 1;

Fig. 3 is a schematic diagram embodying the clamping device;

Fig. 4 is a schematic diagram embodying the non-return assembly in Fig. 3;

Fig. 5 is a schematic diagram embodying the clamping part;

Fig. 6 is a schematic diagram embodying the retreat stop component in Fig. 5;

Fig. 7 is a schematic diagram embodying the supporting device;

Figure 8 is a schematic diagram embodying a support assembly.

In the figure: 1. Machine body; 11. Workbench; 12. Bending mold; 2. Bending device; 21. Lower pressing plate; 22. Bending component; 221. Installation block; 222. Tool; 223. Clamping plate; 23. Press down hydraulic cylinder; 3. Clamping device; 31. Support frame; 32. Beam; 33. Sliding block; 331. Fixing bolt; 34. Clamping rod; 35. Lifting rod; 351. Sawtooth; 352. Lifting groove; 36, back-stop assembly; 361, back-stop rod; 362, back-stop block; 363, back-stop spring; 364, limit block; 37, clamping part; 371, clamping block; 372, clamping block 373, rotor; 38, non-return assembly; 381, ratchet; 382, pawl; 39, screw; 391, handle; 4, supporting device; 41, fixed block; 42, moving block; 43, mobile motor; 44 , screw rod; 45, support assembly; 451, support box; 452, support plate; 453, adjusting bolt.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Face", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

A bending machine for sheet metal parts, as shown in Figure 1, comprising a body 1, a bending device 2 arranged at the top of the body 1, a support device 4 arranged at the bottom side of the body (as shown in Figure 7) and a device The clamping device 3 on the other side of the bottom of the body 1 includes a workbench 11 on the body 1 , the workbench 11 is located directly below the bending device 2 , and the workbench 11 is arranged between the supporting device 4 and the clamping device 3 . Place the sheet metal parts on the workbench 11 and the support device 4, the support device 4 supports the sheet metal parts, the clamping device 3 clamps the sheet metal parts, and the bending device 2 is lowered and raised to complete the sheet metal parts. Bending operations for metal parts.

The bending device 2 includes a lower pressing plate 21 vertically slidably connected to the body 1, a bending assembly 22 arranged at the bottom of the lower pressing plate 21, and a lowering hydraulic cylinder 23 that drives the lower pressing plate 21 to rise or fall (as shown in FIG. 7 ); Pressing down hydraulic cylinder 23 includes a piston rod, and pressing down hydraulic cylinder 23 is fixedly connected with the side near the workbench 11 at the top of body 1 , and the piston rod of pressing down hydraulic cylinder 23 is fixedly connected with lower pressing plate 21 .

As shown in Figure 2, the bending assembly 22 includes a mounting block 221 fixed on the bottom of the lower pressing plate 21, a cutter 222 arranged at the bottom of the lower pressing plate 21, and a clamping plate 223 bolted to the mounting block 221; block, between the clamping plate 223 and the mounting block 221 is provided with a chute for the slider to slide, after the tool 222 is slidably connected to the clamping plate 223, the clamping plate 223 is bolted to the clamping plate 223 so that the tool 222 is fixed on the clamping plate 223; the top of the workbench 11 (as shown in Figure 1) is fixedly connected with the bending die 12 matched with the cutter 222, and the top of the bending die 12 is provided with a working surface, and the cross section of the working surface is " V” shape; press down the extension and retraction of the piston rod of the hydraulic cylinder 23, so that the cutter 222 descends or rises, thereby bending the sheet metal; after the cutter 222 descends, the cutter 222 is inserted into the bending die 12.

As shown in Figure 3 and Figure 4, the clamping device 3 includes a support frame 31 fixed on one side of the bottom end of the body 1 (as shown in Figure 1 ), and a support frame 31 arranged on both sides of the support frame 31 and slidingly connected with the support frame 31 clamping components.

One side of support frame 31 is provided with lead screw 39, and lead screw 39 is arranged along the width direction of support frame 31, and lead screw 39 is connected with support frame 31 in rotation, and one end of lead screw 39 extends support frame 31, and lead screw 39 extends out One end of the support frame 31 is affixed with a handle 391; the side of the support frame 31 away from the leading screw 39 is affixed with a guide post; Guide post slip connection.

The clamping assembly includes a sliding block 33 slidably connected to the beam 32, a clamping rod 34 hinged to the top of the sliding block 33, a lifting rod 35 slidingly connected to the clamping rod 34, and a clip hinged to the top of the lifting rod 35. The tightening part 37 (as shown in FIG. 5 ); the sliding block 33 is screwed with a fixing bolt 331 , and one end of the fixing bolt 331 abuts against the beam 32 .

A non-return assembly 38 is provided at the hinge joint between the clamping rod 34 and the sliding block 33. The non-returning assembly 38 includes a ratchet 381 affixed to the clamping rod 34 and a ratchet 382 that is rotatably connected with the sliding block 33 and cooperates with the ratchet 381. , A torsion spring is provided at the rotational connection between the ratchet 382 and the sliding block 33 .

The clamping rod 34 can be rotated to the side close to the workbench 11. When the clamping rod 34 needs to be rotated to the side away from the workbench 11, the ratchet 382 is rotated to separate the ratchet 382 from the ratchet 381, thereby the clamping The holding rod 34 slides to the side away from the workbench 11 .

As shown in Fig. 5 and Fig. 6, one side of the lifting rod 35 is fixedly connected with a plurality of sawtooth 351, and one side of the clamping rod 34 is provided with a lifting groove 352 for the sliding of the sawtooth 351, and the clamping rod 34 is provided with a lifting groove One side of 352 is provided with a backstop assembly 36, and the backstop assembly 36 includes a stopper 364 affixed to the clamping rod 34, a backstop bar 361 slidably connected with the stopper bar 364, and a stopper bar 361 arranged on the backstop bar 361. One end of the anti-retraction block 362 meshing with the sawtooth 351 is sleeved with an anti-retraction spring 363 on the anti-retraction rod 361 .

The lifting rod 35 can slide to the side away from the sliding block 33 on the clamping rod 34. When the clamping rod 34 needs to slide to the side close to the sliding block 33, the stop rod 361 is moved away from the clamping One side of the rod 34 slides, so that the stop block 362 is separated from the sawtooth 351 , so that the clamping rod 34 slides toward the side close to the sliding block 33 .

The clamping part 37 includes a clamping block 371 hinged to the top of the lifting rod 35, a clamping block 372 slidably connected to the clamping block 371, and a rotor 373 rotatably connected to the clamping block 371 and threaded to the clamping block 372, The clamping block 372 is provided with threads that are threadedly connected with the rotor 373 .

By rotating the rotor 373, the clamping block 372 moves on the clamping block 371, thereby clamping the workpiece.

As shown in FIGS. 7 and 8 , the supporting device 4 includes fixed blocks 41 fixed on both sides of the body 1 , a moving block 42 slidingly connected to the fixed block 41 , and a moving block that drives the moving block 42 to slide on the fixed block 41 . Motor 43, moving motor 43 is affixed on the body 1; Body 1 is provided with fixed block 41 places and is provided with screw rod 44, and one end of screw rod 44 is fixedly connected with moving motor 43, and the other end is connected with body 1 rotation, and moving block 42 is connected with screw rod 44 threaded connection; the top of the moving block 42 is provided with a support assembly 45, the support assembly 45 includes a number of support boxes 451 and a support plate 452 slidingly connected with the support box 451, the bottom end of the support box 451 is provided with a support groove, and the moving block 42 The top of the top is fixedly connected with a sliding guide rail, and the support box 451 is slidably connected with the sliding guide rail through a support groove;

The moving motor 43 rotates to drive the screw rod 44 to rotate, thereby driving the moving block 42 to slide on the fixed block 41, thereby adjusting the distance between the moving block 42 and the worktable 11; the support box 451 slides on the moving block 42, thereby adjusting The position of the support box 451 on the moving block 42 ; by turning the adjusting bolt 453 , the support box 451 slides on the support box 451 , thereby adjusting the distance between the support plate 452 and the workbench 11 .

Working process: When bending a sheet metal part, adjust the distance between the moving block 42 and the worktable 11 according to the size of the sheet metal part, so as to facilitate the support of the sheet metal part; place the sheet metal part on the bending mold 12 and the support plate 452, after adjusting the position of the sheet metal, the both sides of the sheet metal are clamped by rotating the rotor 373.

Press down the piston rod of the hydraulic cylinder 23 to stretch out, thereby driving the tool 222 to move towards the sheet metal part, thereby bending the sheet metal part; during the bending process, the sheet metal part will bend around the bending position, clamping The rod 34 rotates to one side of the workbench 11 during the bending process of the sheet metal, and the clamping rod 34 is stabilized at the rotated position under the action of the ratchet 381 and the ratchet 382; the elevating rod 35 moves on the clamping rod 34 , the lifting rod 35 can only be elongated under the action of the backstop assembly 36, and is stabilized at the elongated position.

After the bending is finished, the piston rod of the hydraulic cylinder 23 is retracted, thereby driving the tool 222 away from the sheet metal; the clamping assembly clamps the sheet metal, thereby reducing the shaking of the sheet metal after processing.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (8)

1. A bending machine for sheet metal parts, comprising a machine body (1), a tool (222) vertically slidably connected to the machine body (1), and a press-down hydraulic cylinder (23) that drives the tool (222) up or down , the press-down hydraulic cylinder (23) is fixedly connected to the body (1), and the body (1) is provided with a workbench (11) that cooperates with a cutter (222) to bend sheet metal parts, and its features Yes: the body (1) is provided with a clamping device (3) that clamps the sheet metal by contacting the sheet metal, and the clamping device (3) is arranged on the side of the workbench (11) side. 2. The sheet metal parts bending machine according to claim 1, characterized in that: the clamping device (3) includes a support frame (31) fixed on one side of the bottom end of the machine body (1) and away from the clamping assembly for clamping the sheet metal parts, the clamping assembly is arranged on both sides of the support frame (31) and is slidably connected with the support frame (31). 3. The sheet metal parts bending machine according to claim 2, characterized in that: the support frame (31) is provided with a beam (32), and the clamping assembly includes a sliding connection with the beam (32). Sliding block (33), the clamping rod (34) that is hinged with the top of sliding block (33), the elevating rod (35) that is slidably connected with clamping rod (34) and the hinged elevating rod (35) top The clamping part (37), the hinge joint between the clamping rod (34) and the sliding block (33) is provided with a non-return assembly (38) that restricts the reverse rotation of the clamping rod (34) through abutment, and the clamping The rotation direction of the holding rod (34) is towards the body (1); the clamping rod (34) is provided with a backstop assembly (36) that restricts the retraction of the lifting rod (35) to the clamping rod (34) by abutting . 4. The sheet metal parts bending machine according to claim 3, characterized in that: the clamping part (37) includes a clamping block (371) hinged to the top of the lifting rod (35), and a clamping block ( 371) The rotor (373) that is rotatably connected and the clamping block (372) that is threaded with the rotor (373). 5. The sheet metal parts bending machine according to claim 3, characterized in that: the non-return assembly (38) includes a ratchet (381) fixed to the clamping rod (34) and a sliding block (33) ) is rotatably connected to the ratchet (382) that cooperates with the ratchet (381), and a torsion spring is provided at the rotational connection between the ratchet (382) and the sliding block (33). 6. The bending machine for sheet metal parts according to claim 3, characterized in that: several sawtooths (351) are fixedly connected to the lifting rod, and there are sawtooths (351) on the clamping rod (34) Sliding lifting slot (352), the backstop assembly (36) includes a limit block (364) fixed on the clamping rod (34), a stop bar that is slidably connected with the limit block (364) (361) and the stop block (362) that is arranged on one end of the stop bar (361) and engages with the sawtooth (351), the back stop spring (363) is sleeved on the stop bar (361), ) is fixedly connected with the stop block (362), and the other end is fixedly connected with the stop block (364). 7. The bending machine for sheet metal parts according to claim 3, characterized in that: one side of the support frame (31) is rotatably connected with a lead screw (39), and the other side is fixedly connected with a guide post, and the One end of the beam (32) is threadedly connected with the leading screw (39), and the other end is slidably connected with the guide post. 8. The sheet metal parts bending machine according to claim 3, characterized in that: said sliding block (33) is threadedly connected with a fixing bolt (331), and one end of said fixing bolt (331) is connected to the beam ( 32) Butt.