Punching positioning device

Abstract

The utility model provides a punching positioning device, and belongs to the technical field of punching machining. The punching positioning device comprises a supporting frame, a baffle, a fixing plate, an air cylinder, a clamping plate, a connecting plate, a mounting plate, a lead screw and a limiting plate. A lead screw is in threaded connection with a limiting plate, and the limiting plate is opposite to a connecting plate, so that when the lead screw rotates, the lead screw drives the limiting plate to move, the movement distance of the connecting plate and a clamping plate is limited by the limiting plate, and the clamping plate is prevented from continuously moving towards a baffle; and the situation that the square workpiece is damaged due to the fact that the clamping force borne by the square workpiece is too large is avoided, and the punching quality of the square workpiece is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching processing, and in particular relates to a punching positioning device. Background Art

[0002] In the related art, when processing a through hole on a square workpiece, in order to improve the processing efficiency, the square workpiece is usually punched by a punching machine.

[0003] The prior art (publication number: CN217474571U) discloses a precise punching positioning device, which first places the steel plate to be punched on top of the bottom plate, starts the steel plate pushing structure to push it to the steel plate limiting strip for limiting, then fixes it through the steel plate fixing structure, and fixes the punching equipment to the steel plate limiting strip to achieve the positioning effect of the steel plate, which is equivalent to achieving the positioning effect of the punching, without the need for manual support, thereby ensuring the safety of the operator.

[0004] In the prior art, when the steel plate pushing structure cooperates with the steel plate limiting strip to clamp and position the workpiece, the workpiece is subjected to the clamping force of the steel plate pushing structure. When the workpiece is thin or the workpiece is soft, if the clamping force of the steel plate pushing structure is too large, the workpiece is easily damaged, thereby reducing the quality of the workpiece. Utility Model Content

[0005] In order to solve the problem in the above-mentioned prior art that when the workpiece is thin or the texture of the workpiece is soft, if the clamping force of the steel plate pushing structure is too large, the workpiece is easily damaged, thereby reducing the quality of the workpiece, the utility model provides a punching positioning device, which adopts a lead screw and a limit plate threaded connection, and makes the limit plate relative to the connecting plate, so that when the lead screw rotates, the lead screw drives the limit plate to move, so that the limit plate limits the moving distance of the connecting plate and the clamping plate, thereby preventing the clamping plate from continuing to move toward the baffle, and preventing the square workpiece from being damaged due to excessive clamping force, so as to improve the effect of punching the square workpiece. The specific technical scheme is as follows:

[0006] A punching positioning device, the punching positioning device comprises: a support frame, a baffle, a fixing plate, a cylinder, a clamping plate, a connecting plate, a mounting plate, a lead screw and a limit plate; the baffle is L-shaped, and the baffle is fixed on the top surface of the support frame; two fixing plates are fixed on the top wall of the support frame, and the two fixing plates are respectively opposite to the two side walls of the baffle; the cylinder is provided with an output shaft, the two cylinders are respectively fixed on the two fixing plates, and the output shaft of the cylinder passes through the fixing plate; the two clamping plates are respectively connected to the output shafts of the two cylinders, and the two clamping plates pass through the top of the support frame wall; two connecting plates are respectively connected to the clamping plates, and the two connecting plates are located below the top wall of the support frame; four mounting plates are fixed below the top wall of the support frame, the four mounting plates are arranged opposite to each other in pairs, and the two mounting plates arranged oppositely are located on one side of the connecting plate; an external thread is arranged on the outer wall of the lead screw, and the two ends of the lead screw are rotatably connected to the two mounting plates respectively; a threaded hole is arranged in the limit plate, and an internal thread is arranged in the threaded hole, the lead screw passes through the threaded hole of the limit plate, and the limit plate is opposite to the connecting plate; wherein the external thread is adapted to the internal thread.

[0007] In addition, the punching positioning device in the above technical solution provided by the utility model may also have the following additional technical features:

[0008] In the above technical solution, the punching positioning device also includes: a clearance groove; the clearance groove is cross-shaped, the clearance groove passes through the top wall of the support frame, and the two clamping plates pass through the clearance groove.

[0009] In the above technical solution, the punching positioning device also includes: a guide rod, a bearing seat and a linear bearing; the guide rod is connected to the clamping plate, and the guide rod passes through the fixed plate; the bearing seat is fixed on the clamping plate, and the bearing seat is wrapped around the outside of the guide rod; the linear bearing is embedded in the bearing seat, and the linear bearing is mounted on the outside of the guide rod.

[0010] In the above technical solution, the punching positioning device also includes: a light bar; two ends of the light bar are respectively connected to the two mounting plates, and the light bar passes through the limit plate.

[0011] In the above technical solution, the punching positioning device also includes: a handwheel; two handwheels are respectively mounted on the outside of the two lead screws, and the two handwheels are located on the outside of the support frame.

[0012] In the above technical solution, the punching positioning device also includes: a receiving groove and a pointer; two receiving grooves are arranged through the top wall of the support frame, the two receiving grooves are located on one side of the baffle, and at least part of the limiting plate passes through the receiving grooves; the pointer is fixed on the limiting plate, the pointer is located above the support frame, and the pointer is opposite to the baffle; wherein, a scale is arranged on the two side walls of the baffle.

[0013] In the above technical solution, the punching positioning device also includes: a mounting groove; the mounting groove is U-shaped, and at least two mounting grooves are arranged on both sides of the support frame.

[0014] Compared with the prior art, the punching positioning device of the utility model has the following beneficial effects:

[0015] 1. By threading the lead screw and the limit plate, and making the limit plate opposite to the connecting plate, when the lead screw rotates, the lead screw drives the limit plate to move, so that the limit plate limits the moving distance of the connecting plate and the clamping plate, thereby preventing the clamping plate from continuing to move toward the baffle, and preventing the square workpiece from being damaged by excessive clamping force, so as to improve the quality of punching of square workpieces.

[0016] 2. A cross-shaped clearance groove is set through the top wall of the support frame, and two clamping plates pass through the clearance groove, so that the two clamping plates can move in the clearance groove, thereby avoiding interference between the clamping plates and the support frame, thereby improving product quality.

[0017] 3. By fixing the bearing seat on the clamping plate, embedding the linear bearing into the bearing seat, and sleeve the linear bearing on the outside of the guide rod, the bearing seat can guide the guide rod through the linear bearing, thereby avoiding the guide plate and the clamping plate from offsetting during movement, thereby improving the stability of the clamping plate movement.

[0018] 4. By passing the optical bar through the limit plate, the limit plate can be moved along the optical bar, thereby avoiding the limit plate from deflecting during movement, thereby improving the stability of the limit plate movement.

[0019] 5. By respectively putting two hand wheels on the outside of the two lead screws and making the two hand wheels located on the outside of the support frame, the lead screws can be driven to rotate by the hand wheels, thereby reducing the difficulty of rotating the lead screws and improving the user experience of the product.

[0020] 6. By fixing the pointer on the limit plate, the pointer is located above the support frame and opposite to the baffle. At the same time, scales are set on the two side walls of the baffle to achieve synchronous movement of the pointer and the limit plate, so that the moving distance of the pointer and the limit plate can be judged by reading the scale on the baffle, so as to improve the accuracy of the moving distance of the limit plate and thus improve the product experience.

[0021] 7. By setting at least two U-shaped installation grooves on both sides of the support frame, the support frame can be installed on the workbench of the punching machine through the installation grooves, so as to reduce the installation difficulty of the product and improve the product usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A top view of a punching positioning device of the utility model;

[0023] Figure 2 for Figure 1A local enlarged view of point A;

[0024] Figure 3 for Figure 1 A partial enlarged view of point B;

[0025] Figure 4 A bottom view of a punching positioning device of the utility model;

[0026] Figure 5 A three-dimensional diagram of the support frame of the utility model;

[0027] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names in the figure is:

[0028] 10 supporting frame, 11 baffle, 12 fixing plate, 13 cylinder, 14 clamping plate, 15 connecting plate, 16 mounting plate, 17 lead screw, 18 limiting plate, 19 giving way groove, 20 guide rod, 21 bearing seat, 22 linear bearing, 23 smooth rod, 24 handwheel, 25 receiving groove, 26 pointer, 27 mounting groove. DETAILED DESCRIPTION

[0029] The following is a combination of specific implementation cases and attached Figure 1-5 The present invention is further described below, but the present invention is not limited to these embodiments.

[0030] A punching positioning device, such as Figures 1 to 5 As shown, the punching positioning device includes: a support frame 10, a baffle 11, a fixed plate 12, a cylinder 13, a clamping plate 14, a connecting plate 15, a mounting plate 16, a lead screw 17 and a limit plate 18; the baffle 11 is L-shaped, and the baffle 11 is fixed on the top surface of the support frame 10; two fixed plates 12 are fixed on the top wall of the support frame 10, and the two fixed plates 12 are respectively opposite to the two side walls of the baffle 11; the cylinder 13 is provided with an output shaft, and the two cylinders 13 are respectively fixed on the two fixed plates 12, and the output shaft of the cylinder 13 passes through the fixed plate 12; the two clamping plates 14 are respectively connected to the output shafts of the two cylinders 13, and the two clamping plates 14 pass through the support The top wall of the support frame 10; the two connecting plates 15 are respectively connected to the clamping plates 14, and the two connecting plates 15 are located below the top wall of the support frame 10; the four mounting plates 16 are fixed below the top wall of the support frame 10, the four mounting plates 16 are arranged opposite to each other in pairs, and the two oppositely arranged mounting plates 16 are located on one side of the connecting plate 15; the outer wall of the lead screw 17 is provided with an external thread, and the two ends of the lead screw 17 are rotatably connected with the two mounting plates 16 respectively; the limiting plate 18 is provided with a threaded hole, and the threaded hole is provided with an internal thread, the lead screw 17 passes through the threaded hole of the limiting plate 18, and the limiting plate 18 is opposite to the connecting plate 15; wherein the external thread is adapted to the internal thread.

[0031] By fixing the L-shaped baffle 11 on the top surface of the support frame 10, and fixing the two fixing plates 12 on the top wall of the support frame 10, the support frame 10 supports the baffle 11 and the two fixing plates 12; by fixing the two cylinders 13 on the two fixing plates 12, and connecting the two clamping plates 14 to the output shafts of the two cylinders 13, the cylinders 13 can drive the clamping plates 14 to move, so that the two clamping plates 14 cooperate with the baffle 11 to clamp the square plate workpiece, so as to improve the stability of the square plate workpiece. By making the clamping plate 14 pass through the top wall of the support frame 10, connecting the connecting plate 15 with the clamping plate 14, and making the connecting plate 15 located below the top wall of the support frame 10, the clamping plate 14 drives the connecting plate 15 to move below the top wall of the support frame 10. By fixing four mounting plates 16 below the top wall of the support frame 10, the four mounting plates 16 are arranged opposite to each other in pairs, and the two ends of the lead screw 17 are rotatably connected to the two mounting plates 16 respectively, so that the two mounting plates 16 support the lead screw 17; by passing the lead screw 17 through the threaded hole of the limit plate 18, and making the limit plate 18 opposite to the connecting plate 15, the lead screw 17 and the limit plate 18 are threadedly connected, so that the lead screw 17 is rotated to drive the limit plate 18 to move, and then the limit plate 18 limits the moving distance of the connecting plate 15 and the clamping plate 14.

[0032] When the product is used, the two lead screws 17 are first rotated to drive the limit plate 18 to move toward the baffle 11; wherein the minimum distance between the baffle 11 and the two clamping plates 14 is slightly smaller than the side length of the square workpiece; then, the baffle 11 is placed on the top wall of the support frame 10, and the two sides of the baffle 11 are fitted with the baffle 11; then, the cylinder 13 is started to drive the clamping plate 14 to move toward the baffle 11, so that the clamping plate 14 It cooperates with the baffle 11 to clamp the square workpiece; moreover, when the cylinder 13 drives the clamping plate 14 to move toward the baffle 11, the connecting plate 15 and the clamping plate 14 move at the same time. When the clamping plate 14 is in contact with the square workpiece, the connecting plate 15 is in contact with the limiting plate 18, thereby limiting the moving distance of the connecting plate 15 and the clamping plate 14 to prevent the clamping plate 14 from continuing to move toward the baffle 11, causing the clamping plate 14 to damage the workpiece.

[0033] By adopting the above structure, the lead screw 17 is threadedly connected with the limit plate 18, and the limit plate 18 is opposite to the connecting plate 15, so that when the lead screw 17 rotates, the lead screw 17 drives the limit plate 18 to move, so that the limit plate 18 limits the movement distance of the connecting plate 15 and the clamping plate 14, thereby preventing the clamping plate 14 from continuing to move toward the baffle 11, and preventing the square workpiece from being damaged due to excessive clamping force, thereby improving the quality of punching of square workpieces.

[0034] In the embodiment of the present utility model, Figures 1 to 5 As shown, the punching positioning device further includes: a clearance groove 19 ; the clearance groove 19 is cross-shaped, the clearance groove 19 penetrates the top wall of the support frame 10 , and the two clamping plates 14 pass through the clearance groove 19 .

[0035] By setting a cross-shaped clearance groove 19 through the top wall of the support frame 10 and passing the two clamping plates 14 through the clearance groove 19, the two clamping plates 14 can move in the clearance groove 19, thereby avoiding interference between the clamping plates 14 and the support frame 10, thereby improving product quality.

[0036] In the embodiment of the present utility model, Figures 1 to 5 As shown, the punching positioning device also includes: a guide rod 20, a bearing seat 21 and a linear bearing 22; the guide rod 20 is connected to the clamping plate 14, and the guide rod 20 passes through the fixed plate 12; the bearing seat 21 is fixed on the clamping plate 14, and the bearing seat 21 is arranged around the outer side of the guide rod 20; the linear bearing 22 is embedded in the bearing seat 21, and the linear bearing 22 is sleeved on the outer side of the guide rod 20.

[0037] By connecting the guide rod 20 with the clamping plate 14 and passing the guide rod 20 through the fixed plate 12, the clamping plate 14 and the guide rod 20 can move synchronously, so that the guide rod 20 can move in the fixed plate 12; by fixing the bearing seat 21 on the clamping plate 14, embedding the linear bearing 22 in the bearing seat 21, and sleeved the linear bearing 22 on the outer side of the guide rod 20, the bearing seat 21 guides the guide rod 20 through the linear bearing 22, thereby avoiding the guide plate and the clamping plate 14 from offsetting when moving, thereby improving the stability of the movement of the clamping plate 14.

[0038] In the embodiment of the present utility model, Figures 1 to 5 As shown, the punching positioning device further includes: a light bar 23 ; two ends of the light bar 23 are respectively connected to the two mounting plates 16 , and the light bar 23 passes through the limiting plate 18 .

[0039] By connecting the two ends of the optical bar 23 to the two mounting plates 16 respectively, the two mounting plates 16 can support the optical bar 23; by passing the optical bar 23 through the limit plate 18, the limit plate 18 can move along the optical bar 23, thereby avoiding the limit plate 18 from shifting during movement, thereby improving the stability of the movement of the limit plate 18.

[0040] In the embodiment of the present utility model, Figures 1 to 5 As shown, the punching positioning device further includes: a hand wheel 24 ; the two hand wheels 24 are respectively sleeved on the outside of the two lead screws 17 , and the two hand wheels 24 are located on the outside of the support frame 10 .

[0041] By respectively sleeved the two hand wheels 24 on the outside of the two lead screws 17 and making the two hand wheels 24 located on the outside of the support frame 10, the lead screw 17 can be driven to rotate by the hand wheels 24, thereby reducing the difficulty of rotating the lead screw 17 and improving the user experience of the product.

[0042] In the embodiment of the present utility model, Figures 1 to 5 As shown, the punching positioning device also includes: a receiving groove 25 and a pointer 26; two receiving grooves 25 are arranged through the top wall of the support frame 10, the two receiving grooves 25 are located on one side of the baffle 11, and at least part of the limiting plate 18 passes through the receiving groove 25; the pointer 26 is fixed on the limiting plate 18, the pointer 26 is located above the support frame 10, and the pointer 26 is opposite to the baffle 11; wherein, scales are arranged on the two side walls of the baffle 11.

[0043] By setting two receiving grooves 25 through the top of the support frame 10, and allowing at least part of the limit plate 18 to pass through the receiving grooves 25, the limit plate 18 can be moved in the receiving grooves 25, so that at least part of the limit plate 18 is located above the support frame 10; by fixing the pointer 26 on the limit plate 18, the pointer 26 is located above the support frame 10, and the pointer 26 is opposite to the baffle 11. At the same time, a scale is set on the two side walls of the baffle 11 to achieve synchronous movement of the pointer 26 and the limit plate 18, so that the moving distance of the pointer 26 and the limit plate 18 can be judged by reading the scale on the baffle 11, so as to improve the accuracy of the moving distance of the limit plate 18, thereby improving the product usage experience.

[0044] In the embodiment of the present utility model, Figures 1 to 5 As shown, the punching positioning device further includes: a mounting groove 27 ; the mounting groove 27 is U-shaped, and at least two mounting grooves 27 are arranged on both sides of the support frame 10 .

[0045] By setting at least two U-shaped installation grooves 27 on both sides of the support frame 10, the support frame 10 can be installed on the workbench of the punching machine through the installation grooves 27, so as to reduce the installation difficulty of the product and improve the product usage experience.

[0046] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A punching positioning device, characterized in that: The punching positioning device comprises: Support frame; A baffle, the baffle is L-shaped and fixed on the top surface of the support frame; A fixing plate, wherein two fixing plates are fixed on the top wall of the support frame, and the two fixing plates are respectively opposite to the two side walls of the baffle; A cylinder, wherein the cylinder is provided with an output shaft, the two cylinders are respectively fixed on the two fixing plates, and the output shafts of the cylinders pass through the fixing plates; A clamping plate, wherein two clamping plates are respectively connected to the output shafts of the two cylinders, and the two clamping plates pass through the top wall of the support frame; A connecting plate, wherein two connecting plates are respectively connected to the clamping plates, and the two connecting plates are located below the top wall of the supporting frame; Mounting plates, four of which are fixed below the top wall of the support frame, the four mounting plates are arranged opposite to each other in pairs, and the two mounting plates arranged opposite to each other are located on one side of the connecting plate; A lead screw, wherein an external thread is arranged on the outer wall of the lead screw, and both ends of the lead screw are rotatably connected to the two mounting plates respectively; A limit plate, wherein a threaded hole is provided in the limit plate, an internal thread is provided in the threaded hole, the lead screw passes through the threaded hole of the limit plate, and the limit plate is opposite to the connecting plate; Wherein, the external thread is matched with the internal thread.

2. A punching positioning device according to claim 1, characterized in that: The punching positioning device also includes: The give-way groove is in a cross shape, the give-way groove is arranged through the top wall of the support frame, and the two clamping plates pass through the give-way groove.

3. A punching positioning device according to claim 2, characterized in that: The punching positioning device also includes: A guide rod, the guide rod is connected to the clamping plate and passes through the fixing plate; A bearing seat, the bearing seat is fixed on the clamping plate and is arranged around the outer side of the guide rod; A linear bearing is embedded in the bearing seat and sleeved on the outer side of the guide rod.

4. A punching positioning device according to claim 1, characterized in that: The punching positioning device also includes: The optical bar has two ends connected to the two mounting plates respectively, and the optical bar passes through the limiting plate.

5. A punching positioning device according to claim 4, characterized in that: The punching positioning device also includes: The two handwheels are respectively mounted on the outside of the two lead screws, and the two handwheels are located on the outside of the support frame.

6. A punching positioning device according to claim 5, characterized in that: The punching positioning device also includes: Accommodating grooves, wherein two of the accommodating grooves are arranged through the top wall of the supporting frame, the two accommodating grooves are located on one side of the baffle plate, and at least part of the limiting plate passes through the accommodating grooves; A pointer, the pointer is fixed on the limit plate, the pointer is located above the support frame, and the pointer is opposite to the baffle; Wherein, scales are arranged on both side walls of the baffle.

7. A punching positioning device according to any one of claims 1 to 6, characterized in that: The punching positioning device also includes: The mounting groove is U-shaped, and at least two mounting grooves are arranged on both sides of the support frame.

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