Stamping positioning mechanism for automobile parts

Abstract

The utility model provides a stamping positioning mechanism for automobile parts, which relates to the field of part stamping, and comprises a stamping table (10), positioning guide rods (20), a mounting plate (30), a hydraulic mechanism (40), a stamping die and a clamping mechanism, the four corners of the end face of the stamping table (10) are respectively provided with the positioning guide rods (20), and the four positioning guide rods (20) are connected with the same mounting plate (30); a hydraulic mechanism (40) is arranged on the mounting plate (30) and is connected with the stamping die; the stamping die comprises a lifting block (51), a stamping rod (52), a stamping male die (53) and a connecting sliding rod (54), a conical groove (512) is formed in the middle of the bottom end of the lifting block (51), a forming groove (12) corresponding to the stamping male die (53) is formed in the middle of the stamping table (10), clamping mechanisms are evenly arranged on the end face of the forming groove (12), and the clamping mechanisms are connected with the inclined face of the conical groove (512) through the connecting sliding rod (54). The positioning mechanism can continuously clamp and position a workpiece in the punching process.

Description

Technical Field

[0001] The utility model relates to the technical field of parts stamping, in particular to a stamping positioning mechanism for automobile parts. Background Art

[0002] Most automotive parts are manufactured using stamping dies; that is, external forces are applied to plates, strips, tubes and profiles through presses and dies to cause them to undergo plastic deformation or separation, thereby obtaining the required shape and size. Some of the stamped parts directly become products for installation, while others become products after welding, machining, painting and other processes. Chinese patent document CN219745969U discloses an automobile stamping die with a cooling function, which drives the cold water inside the bottom plate through the second pump body and introduces it into the cooling tank through the water pipe, and the bottom die is cooled by the cold water inside the cooling tank, and the heat-absorbing water is introduced into the inside of the water cooling box through the drain pipe, and the hot water is introduced into the refrigerator through the setting of the water inlet pipe, and the hot water is cooled by the refrigerator, and the refrigerated water is driven by the first pump body to be introduced into the other end of the bottom plate through the conduit, thereby facilitating stable cooling of the automobile stamping die; at the same time, it pushes the movable plate downward through the stamping cylinder, and the movable plate is moved and limited by the sliding connection between the limit groove and the fixed shaft, and the upper die is driven to move downward by the movable plate for stamping, thereby realizing the stamping of automobile parts. However, during the stamping process, the stamping die is unable to continuously position and clamp the parts to be stamped. That is, under the continuous extrusion of the upper die, the parts to be stamped are prone to displacement in the horizontal plane, causing deviation in the stamping position and affecting the stamping accuracy. Secondly, when the stamped part is squeezed, the unstamped part will be deformed by warping, bending, etc. due to the extrusion force, which will cause the parts to be damaged by stamping and increase the stamping failure rate. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a stamping positioning mechanism for automobile parts, which can continuously press and position the workpiece during the stamping process, and facilitate the problems such as deviation or bending of the workpiece during the stamping process, thereby ensuring the stamping accuracy and avoiding damage to parts.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A stamping positioning mechanism for automobile parts comprises a stamping table, a positioning guide rod, a mounting plate, a hydraulic mechanism, a stamping die and a clamping mechanism, wherein positioning guide rods are respectively arranged at the four corners of the end face of the stamping table, and the top ends of the four positioning guide rods are fixedly connected to the bottom face of the same mounting plate, a hydraulic mechanism is arranged on the mounting plate, and the output end of the hydraulic mechanism is fixedly connected to the stamping die arranged on the lower side of the mounting plate; the stamping die comprises a lifting block, a stamping rod, a stamping punch and a connecting slide bar, the end face of the lifting block is fixedly connected to the output end of the hydraulic mechanism, and a tapered groove with a larger upper part and a smaller lower part is provided in the middle of the bottom end of the lifting block, a coaxial stamping rod is arranged in the middle of the tapered groove, and a stamping punch is fixedly arranged at the bottom end of the stamping rod, a forming groove is arranged in the middle of the stamping table corresponding to the stamping punch, and a clamping mechanism is evenly arranged around the central axis of the forming groove on the end face of the stamping table, and the clamping mechanism is connected to the inclined surface of the tapered groove through a connecting slide bar.

[0006] Based on further optimization of the above solution, support feet are fixedly arranged on the bottom surface of the stamping table to stably position the stamping table on the ground.

[0007] Based on further optimization of the above scheme, a guide sleeve is set on the outer wall of the lifting block and the corresponding positioning guide rod, and the wire sleeve is sleeved on the outer wall of the corresponding positioning guide rod and slidably connected, thereby avoiding position deviation during the downward movement of the stamping die.

[0008] Based on further optimization of the above solution, the bottom end of the punching rod is located on the lower side of the bottom surface of the lifting block, that is, the punching punch is located on the lower side of the lifting block, thereby avoiding interference between the lifting block and the punching table during the punching process.

[0009] Based on further optimization of the above solution, the outer diameter of the punching rod is smaller than the minimum bottom length of the tapered groove and the width of the punching punch is smaller than the minimum bottom length of the tapered groove.

[0010] Based on the further optimization of the above scheme, the clamping mechanism includes a sliding block, an adjusting screw, a "7"-shaped block and a clamping block. The sliding block is slidably arranged on the end face of the stamping table and the middle part of the top face of the sliding block is fixedly connected to the bottom end of the corresponding connecting sliding rod, and the top end of the connecting sliding rod (that is, the end away from the sliding block) is slidingly connected to the inclined surface of the conical groove; the adjusting screw passes through the middle part of the sliding block and is threadedly connected to the sliding block, and the end of the adjusting screw close to the forming groove is rotatably arranged with a "7"-shaped block and the bottom surface of the "7"-shaped block is slidably connected to the end face of the stamping table, the cross bar section of the "7"-shaped block is located on the side close to the forming groove and the clamping block is slidably arranged on the bottom surface of the cross bar section of the "7"-shaped block, and a lightweight spring is arranged between the clamping block and the vertical bar section of the "7"-shaped block.

[0011] Based on further optimization of the above solution, a rubber buffer layer is provided on the end surface of the clamping block away from the lightweight spring to avoid clamping damage to the side wall of the plate.

[0012] The following are the technical effects of the utility model:

[0013] The present application drives the lifting block to rise or fall through a hydraulic mechanism, and utilizes the cooperation of the lifting block, conical groove, stamping rod, stamping punch, connecting slide rod and clamping mechanism. During the downward movement of the lifting block, the clamping mechanism is first used to achieve stable positioning and clamping of workpieces such as plates, strips, pipes and profiles located on the end face of the stamping table, thereby completing the stable clamping and positioning of the workpiece before stamping. Afterwards, the workpiece is stamped and formed by the stamping punch, and the clamping mechanism synchronously slides to the side close to the forming groove during the forming process, thereby achieving the clamping mechanism always maintaining clamping and positioning with the workpiece during the stamping process. First, it avoids the workpiece from shifting during the stamping process and affecting the stamping accuracy. Second, it avoids the problems of warping and bending of the workpiece due to the extrusion force, thereby ensuring the stamping quality, avoiding the product from being damaged by the continuous stamping pressure due to bending, and improving the qualified rate of stamping products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the stamping positioning mechanism in the embodiment of the utility model.

[0015] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0016] Figure 3 This is a schematic diagram of the structure of the stamping positioning mechanism in another embodiment of the utility model (relative to Figure 1 ).

[0017] Figure 4 for Figure 3 BB section view.

[0018] Among them, 10, stamping table; 11, supporting foot; 111, rotating rod; 112, cam plate; 12, forming groove; 13, lifting plate; 14, lifting rod; 15, limit block; 16, reset spring; 20, positioning guide rod; 30, mounting plate; 40, hydraulic mechanism; 51, lifting block; 511, guide sleeve; 512, conical groove; 52, stamping rod; 53, stamping punch; 54, connecting slide rod; 61, sliding block; 62, adjusting screw; 63, "7" shaped block; 64, clamping block; 65, lightweight spring; 70, workpiece to be stamped. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment 1:

[0021] Referring to the figure below: a stamping positioning mechanism for automobile parts, comprising a stamping table 10, a positioning guide rod 20, a mounting plate 30, a hydraulic mechanism 40, a stamping die and a clamping mechanism, a support foot 11 is fixedly arranged on the bottom surface of the stamping table 10 (the number and shape of the support foot 11 are set according to the actual situation, and are not specifically limited in this embodiment), which is used for the stable positioning of the stamping table 10 on the ground; positioning guide rods 20 are respectively arranged at the four corners of the end surface of the stamping table 10, and the top ends of the four positioning guide rods 20 are fixedly connected to the bottom surface of the same mounting plate 30, a hydraulic mechanism 40 is arranged on the mounting plate 30, and the output end of the hydraulic mechanism 40 is fixedly connected to the stamping die arranged on the lower side of the mounting plate 30 (see Figure 1 As shown, the main body of the hydraulic mechanism 40 is fixedly arranged on the end surface of the mounting plate 30, and the telescopic rod of the hydraulic mechanism 40 passes through the mounting plate 30 and is fixedly connected to the stamping die arranged on the lower side thereof).

[0022] The stamping die includes a lifting block 51, a stamping rod 52, a stamping punch 53 and a connecting slide rod 54. The end face of the lifting block 51 is fixedly connected to the output end of the hydraulic mechanism 40 (i.e., the lower end of the telescopic rod of the hydraulic mechanism 40), and a tapered groove 512 with a larger upper part and a smaller lower part is provided in the middle of the bottom end of the lifting block 51 (i.e., the longitudinal section of the tapered groove 512 is an isosceles trapezoidal structure with a short upper bottom side and a long lower bottom side, such as Figure 1 As shown; the conical groove 512 is coaxially arranged with the lifting block 51); the outer wall of the lifting block 51 and the corresponding positioning guide rod 20 are provided with a guide sleeve 511, and the wire sleeve 511 is sleeved on the outer wall of the corresponding positioning guide rod 20 and is slidably connected, thereby avoiding the position deviation of the stamping die during the downward movement. A coaxial punching rod 52 is arranged in the middle of the conical groove 512, and a punching punch 53 is fixedly arranged at the bottom end of the punching rod 52. The bottom end of the punching rod 52 is located on the lower side of the bottom surface of the lifting block 51, that is, the punching punch 53 is located on the lower side of the lifting block 51, thereby avoiding interference between the lifting block 51 and the stamping table 10 during the stamping process.

[0023] A forming groove 12 is provided in the middle of the stamping table 10 corresponding to the stamping punch 53 (it should be noted that the forming groove 12 can be directly opened on the end face of the stamping table 10, or an installation groove can be opened on the end face of the stamping table 10, and then the forming groove 12 is fixedly clamped in the installation groove, which can be set according to the actual situation) and a clamping mechanism is evenly provided around the central axis of the forming groove 12 on the end face of the stamping table 10 (the number of the clamping mechanisms is set according to the actual situation, generally four, respectively located on the four sides of the forming groove 12), and the clamping mechanism is connected to the inclined surface of the conical groove 512 through a connecting slide rod 54, see Figure 2As shown, specifically: the clamping mechanism includes a sliding block 61, an adjusting screw 62, a "7"-shaped block 63 and a clamping block 64, the sliding block 61 is slidably arranged on the end surface of the punching table 10, and the middle of the top surface of the sliding block 61 is fixedly connected to the corresponding bottom end of the connecting slide rod 54, and the top of the connecting slide rod 54 (that is, the end away from the sliding block 61) is slidably connected to the inclined surface of the conical groove 512 (corresponding); the adjusting screw 62 passes through the middle of the sliding block 61 and is threadedly connected to the sliding block 61, and the end of the adjusting screw 62 close to the forming groove 12 is rotatably arranged with a "7"-shaped block 63, and the bottom surface of the "7"-shaped block 63 is slidably connected to the end surface of the punching table 10, the cross bar section of the "7"-shaped block 63 is located on the side close to the forming groove 12, and the clamping block 64 is slidably arranged on the bottom surface of the cross bar section of the "7"-shaped block 63 (see Figure 2 As shown, the clamping block 64 is parallel to the vertical rod section of the "7"-shaped clamping block 63), a lightweight spring 65 is arranged between the clamping block 64 and the vertical rod section of the "7"-shaped clamping block 63 (the number of lightweight springs 65 is set according to actual conditions and is not specifically limited in this embodiment); a rubber buffer layer is arranged on the end surface of the clamping block 64 away from the lightweight spring 65 to avoid clamping damage to the side wall of the plate.

[0024] See also Figure 1 As shown: the outer diameter of the punching rod 52 is smaller than the length of the minimum bottom side (i.e., the upper bottom side) of the tapered groove 512 and the width of the punching punch 53 is smaller than the length of the minimum bottom side (i.e., the upper bottom side) of the tapered groove 512; at the same time, in this embodiment, the outer diameter of the punching rod 52 is not larger than the width of the punching punch 53 to avoid interference between the clamping mechanism moving toward the center and the punching rod during the stamping process.

[0025] Working principle:

[0026] When in use, first place the workpiece 70 to be punched on the end surface of the punching table 10, start the hydraulic mechanism 40, the hydraulic mechanism 40 pushes the lifting block 51 to move downward, the lifting block 51 drives the punch 53 to move downward through the punching rod 52, and drives the clamping mechanism (specifically the sliding block 61) to slide toward the side close to the forming groove 12 through the connecting slide rod 54; as the lifting block 51 continues to move downward, the end surface of the clamping block 64 away from the light spring 65 first contacts the corresponding side wall of the workpiece 70 to be punched, and the light spring 65 contacts the corresponding side wall of the workpiece 70 to be punched. The spring 65 is compressed, and the "7"-shaped block 63 is clamped on the corresponding side wall of the workpiece 70 to be punched, so as to clamp and position the workpiece 70 to be punched; then, the bottom of the punch 53 contacts the end face of the workpiece 70 to be punched, and the punching is performed. During this process, the sliding block 61 continues to slide toward the side close to the forming punch 12, so that the "7"-shaped block 63 and the clamping block 64 always clamp and position the edge of the workpiece 70 to be punched, avoiding the problems of the workpiece 70 to be punched being offset or warped during the punching process. In addition, by adjusting the screw 62, the use range of the punching positioning mechanism can be expanded for workpieces 70 to be punched of different widths and lengths.

[0027] Embodiment 2:

[0028] As a further optimization of the solution of the utility model, on the basis of the solution of embodiment 1, in order to facilitate the unloading of the product after stamping, refer to Figure 3 and Figure 4 As shown, a top plate groove is opened in the middle of the bottom surface of the forming groove 12 and a lifting plate 13 is clamped in the top plate groove, a lifting rod 14 is arranged at the bottom of the lifting plate 13 and the bottom end of the lifting rod 14 passes through the corresponding stamping table 10, and a limit block 15 is fixedly arranged at the bottom end of the lifting rod 14 on the lower side of the stamping table 10. The limit block 15 is connected to the bottom surface of the stamping table 10 and a reset spring 16 is arranged on the outer circle of the lifting rod 14; a freely rotatable rotating rod 111 is arranged between the two symmetrical supporting feet 11, and the rotating rod 111 is located on the outer wall of the limit block 15 and fixedly sleeved with a cam disk 112, and the rotating rod 111 can be controlled to rotate by a driving motor arranged at one end of the supporting foot 11.

[0029] Embodiment 3:

[0030] As a further optimization of the solution of the utility model, on the basis of the solution of Example 2, a support limiting plate is provided between two symmetrical supporting feet 11 and corresponding to the cam disc 112 to limit and support the protruding portion of the cam disc 112 .

Claims

1. A stamping positioning mechanism for automobile parts, characterized in that: It includes a stamping table, a positioning guide rod, a mounting plate, a hydraulic mechanism, a stamping die and a clamping mechanism. Positioning guide rods are respectively arranged at the four corners of the end face of the stamping table, and the top ends of the four positioning guide rods are fixedly connected to the bottom face of the same mounting plate. A hydraulic mechanism is arranged on the mounting plate, and the output end of the hydraulic mechanism is fixedly connected to the stamping die arranged on the lower side of the mounting plate; the stamping die includes a lifting block, a stamping rod, a stamping punch and a connecting slide rod. The end face of the lifting block is fixedly connected to the output end of the hydraulic mechanism, and a conical groove with a larger upper part and a smaller lower part is opened in the middle of the bottom end of the lifting block. A coaxial stamping rod is arranged in the middle of the conical groove, and a stamping punch is fixedly arranged at the bottom end of the stamping rod. A forming groove is arranged in the middle of the stamping table corresponding to the stamping punch, and clamping mechanisms are evenly arranged around the central axis of the forming groove on the end face of the stamping table, and the clamping mechanism is connected to the inclined surface of the conical groove through a connecting slide rod.

2. A stamping positioning mechanism for automobile parts according to claim 1, characterized in that: The bottom surface of the stamping platform is fixedly provided with supporting feet.

3. The stamping positioning mechanism for automobile parts according to claim 1, characterized in that: The outer wall of the lifting block is provided with a guide sleeve corresponding to the positioning guide rod, and the wire sleeve is sleeved on the outer wall of the corresponding positioning guide rod and is slidably connected.

4. The stamping positioning mechanism for automobile parts according to claim 1, characterized in that: The bottom end of the punching rod is located at the lower side of the bottom surface of the lifting block, that is, the punching punch is located at the lower side of the lifting block.

5. A stamping positioning mechanism for automobile parts according to any one of claims 1 to 4, characterized in that: The outer diameter of the punching rod is smaller than the minimum bottom length of the tapered groove and the width of the punching punch is smaller than the minimum bottom length of the tapered groove.

6. A stamping positioning mechanism for automobile parts according to claim 5, characterized in that: The clamping mechanism includes a sliding block, an adjusting screw, a "7"-shaped block and a clamping block. The sliding block is slidably arranged on the end surface of the stamping table, and the middle of the top surface of the sliding block is fixedly connected to the bottom end of the corresponding connecting slide rod, and the top end of the connecting slide rod is slidably connected to the inclined surface of the conical groove; the adjusting screw passes through the middle of the sliding block and is threadedly connected to the sliding block, and the "7"-shaped block is rotatably arranged at one end of the adjusting screw close to the forming groove, and the bottom surface of the "7"-shaped block is slidably connected to the end surface of the stamping table, the cross bar section of the "7"-shaped block is located on the side close to the forming groove, and the clamping block is slidably arranged on the bottom surface of the cross bar section of the "7"-shaped block, and a light spring is arranged between the clamping block and the vertical bar section of the "7"-shaped block.

7. A stamping positioning mechanism for automobile parts according to claim 6, characterized in that: A rubber buffer layer is arranged on an end surface of the clamping block away from the light spring.

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