Trimming mold convenient for workpiece fixing and demolding

Abstract

The utility model discloses a trimming mould convenient for workpiece fixing and demoulding, which comprises an upper mould and a lower mould, an upper mould core is arranged at the bottom of the upper mould, a lower mould core is arranged at the top of the lower mould, the upper mould core is buckled with the lower mould core, the trimming mould further comprises a workpiece fixing device, a driving device and a demoulding device, and the workpiece fixing device is arranged in the lower mould core. The demolding device is slidably arranged in the lower mold core, and the driving device is arranged on one side of the lower mold core and slidably connected with the workpiece fixing device and the demolding device. The upper mold core and the lower mold core are matched to cut the edge of the workpiece, the driving device drives the workpiece fixing device and the demolding device to work respectively, the workpiece is fixed during edge cutting, deviation of the machining position of the workpiece is avoided, the workpiece is automatically demolded after edge cutting is completed, and the production efficiency is improved. The problem that a workpiece machined by a traditional trimming die is easily clamped in the trimming die is solved, and the production efficiency and the machining precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a trimming mold which is convenient for fixing a workpiece and demoulding. Background Art

[0002] The trimming die is a stamping die that uses a punch to trim the edge of a workpiece to give it a certain shape. The existing trimming die usually only has an upper die and a lower die. When processing the workpiece, the workpiece is placed in the lower die seat without fixing the workpiece, which often leads to deviations in the processing position of the workpiece, and the processed workpiece is easily stuck in the trimming die, making it difficult for the operator to remove the workpiece, which seriously affects the work efficiency. Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a trimming die that is convenient for fixing workpieces and demoulding, so as to solve the problems raised in the above background technology. To achieve the above purpose, the present invention adopts the following technical solutions:

[0004] The trimming mold which is convenient for fixing the workpiece and demoulding, comprises an upper mold and a lower mold, the lower mold is provided with a plurality of guide pillars, the upper mold is slidably arranged on the plurality of guide pillars, the bottom of the upper mold is provided with an upper mold core, the top of the lower mold is provided with a lower mold core, the upper mold core and the lower mold core are buckled, and also comprises a workpiece fixing device, a driving device and a demoulding device, the workpiece fixing device is arranged in the lower mold core, the demoulding device is slidably arranged in the lower mold core, the driving device is arranged on one side of the lower mold core, and is slidably connected with the workpiece fixing device and the demoulding device respectively, the workpiece fixing device comprises a fixing sleeve and a control member, the fixing sleeve is arranged in the lower mold core, the control member is slidably arranged in the fixing sleeve and is slidably connected with the driving device, the driving device drives the control member to slide in the fixing sleeve, so that the fixing sleeve is deformed to clamp the workpiece.

[0005] Optionally, the bottom of the fixed jacket is arranged in the lower mold core, and a plurality of clamping arms are arranged around the top of the fixed jacket, and the plurality of clamping arms are respectively slidably connected to the control member.

[0006] Optionally, a control sleeve is provided on the top of the control member, a through slot is opened through the middle of the bottom end, and driving slots are opened on the control member on both sides of the through slot. The through slot and the driving slot are respectively slidably connected to the driving device, and the control sleeve is respectively slidably connected to the multiple clamping arms.

[0007] Optionally, the driving device includes a driving rod, a driving cylinder and a pin shaft, the driving cylinder is arranged on one side of the lower mold, the driving rod is arranged at the working end of the driving cylinder and is slidably connected to the through groove, and the pin shaft is arranged on the driving rod and is slidably connected to the driving groove.

[0008] Optionally, the demoulding device includes a demoulding ejector rod and a return spring. There is at least one demoulding ejector rod, which is slidably arranged in the lower mold core. The return spring is sleeved on the demoulding ejector rod. A driving platform is arranged on the driving rod. The demoulding ejector rod and the driving platform are slidably connected.

[0009] Optionally, the bottom end of the demoulding ejector rod is hemispherical, and a driving inclined surface is provided on the driving platform, and the driving inclined surface and the demoulding ejector rod are slidably connected.

[0010] Optionally, there are two demoulding ejector rods, and two driving platforms are arranged on the driving rod. The two demoulding ejector rods correspond to the two driving platforms one by one and are slidably connected.

[0011] Optionally, positioning blocks are respectively provided on both sides of the lower mold core, and the two positioning blocks are respectively slidably connected to the driving rod.

[0012] Optionally, a connecting rod is provided on the top of the upper die, and the connecting rod is used to connect to an external punching machine.

[0013] Optionally, a fixing bolt is provided at the bottom end of the driving rod at a position corresponding to the pin shaft, for fixing the pin shaft.

[0014] The beneficial effect compared with the prior art is that, by adopting the above scheme, the utility model trims the workpiece by the cooperation of the upper mold core and the lower mold core, and drives the workpiece fixing device and the demoulding device to work respectively through the driving device, thereby realizing the fixation of the workpiece during trimming, avoiding the deviation of the workpiece processing position, and automatically demoulding the workpiece after trimming is completed, avoiding the problem that the workpiece processed by the traditional trimming mold is easily stuck in the trimming mold, thereby improving the production efficiency, and through the cooperation of the control part and the fixed sleeve, the workpiece is clamped from the inner hole to prevent external interference, thereby further improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the workpiece fixing device of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the driving device of the utility model;

[0018] Figure 4It is a schematic diagram of the structure of the demoulding device of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the lower mold core and the positioning block of the utility model;

[0020] As shown in the above drawings: 1. upper mold; 2. lower mold; 3. guide column; 11. upper mold core; 21. lower mold core; 4. workpiece fixing device; 5. driving device; 6. demoulding device; 41. fixed sleeve; 42. control member; 411. clamping arm; 421. control sleeve; 422. through groove; 423. driving groove; 51. driving rod; 52. driving cylinder; 53. pin shaft; 61. demoulding ejector rod; 62. reset spring; 54. driving platform; 611. demoulding platform; 612. limit platform; 541. driving inclined surface; 22. positioning block; 12. connecting rod; 55. fixing bolt. DETAILED DESCRIPTION

[0021] To facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments; the accompanying drawings show preferred embodiments of the present application; however, the present application can be implemented in many different forms and is not limited to the embodiments described in this specification; on the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive.

[0022] It should be noted that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two elements; for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances; the terms "vertical", "horizontal", "left", "right", "front", "rear" and similar expressions used in this specification are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0024] like Figure 1-2As shown, one embodiment of the utility model is that the trimming mold for fixing the workpiece and demoulding is convenient, including an upper mold 1 and a lower mold 2, the lower mold 2 is provided with a plurality of guide pillars 3, the upper mold 1 is slidably arranged on the plurality of guide pillars 3, the upper mold 1 is provided with an upper mold core 11 at the bottom, the lower mold 2 is provided with a lower mold core 21 at the top, the upper mold core 11 and the lower mold core 21 are buckled, and also includes a workpiece fixing device 4, a driving device 5 and a demoulding device 6, the workpiece fixing device 4 is arranged in the lower mold core 21, and the demoulding device 6 is slidably arranged in the In the lower mold core 21, the driving device 5 is arranged on one side of the lower mold core 21, and is slidably connected with the workpiece fixing device 4 and the demoulding device 6 respectively. The workpiece fixing device 4 includes a fixed sleeve 41 and a control member 42. The fixed sleeve 41 is arranged in the lower mold core 21. The control member 42 is slidably arranged in the fixed sleeve 41 and is slidably connected with the driving device 5. The driving device 5 drives the control member 42 to slide in the fixed sleeve 41, so that the fixed sleeve 41 is deformed to clamp the workpiece.

[0025] In this embodiment, the lower mold 2 is horizontally arranged, four guide pillars 3 are vertically arranged on the top surface of the lower mold 2, the upper mold 1 is slidably arranged on the four guide pillars 3, an upper mold core 11 is arranged at the bottom of the upper mold 1, and a lower mold core 21 is arranged on the top of the lower mold 2. The upper mold core 11 and the lower mold core 21 are buckled together, and a workpiece fixing device 4 is arranged in the middle of the lower mold core 21, and a demolding device 6 is arranged between the workpiece fixing device 4 and the lower mold core 21. The driving device 5 is arranged on the lower mold 2 on one side of the lower mold core 21, and the driving device 5 is slidably connected with the workpiece fixing device 4 and the demolding device 6 respectively, and is used to drive the workpiece fixing device 4 and the demolding device 6 to work. The bottom end of the fixed sleeve 41 is arranged in the lower mold core 21, and the top end thereof is located at the top of the lower mold core 21. The control part 42 is vertically slidably arranged in the fixed sleeve 41.

[0026] During operation, the upper mold 1 moves upward along the guide column 3, the workpiece is placed in the lower mold core 21, and the top of the fixed sleeve 41 passes through the hole in the middle of the workpiece. The driving device 5 pushes the control part 42 to move upward, so that the top of the fixed sleeve 41 opens, and the workpiece is clamped from the inside to the outside. The upper mold 1 moves downward, so that the upper mold core 11 and the lower mold core 21 are buckled, and the circumferential side of the workpiece is trimmed. Then the upper mold 1 is reset upward, and the driving device 5 drives the control part 42 to move downward, so that the fixed sleeve 41 loosens the workpiece, and at the same time drives the demolding device 6 to eject the workpiece from the lower mold core 21 to complete the demolding.

[0027] The present application trims the workpiece by cooperating with the upper mold core 11 and the lower mold core 21, and drives the workpiece fixing device 4 and the demoulding device 6 to work respectively through the driving device 5, thereby fixing the workpiece during trimming, avoiding deviation in the position of the workpiece processing, and automatically demoulding the workpiece after trimming is completed, avoiding the problem that the workpiece processed by the traditional trimming mold is easily stuck in the trimming mold, thereby improving production efficiency, and through the cooperation of the control part 42 and the fixed sleeve 41, the workpiece is clamped from the inner hole to prevent external interference, thereby further improving the processing accuracy.

[0028] In one embodiment, Figure 2 As shown, the bottom of the fixing jacket 41 is arranged in the lower mold core 21 , and a plurality of clamping arms 411 are arranged around the top of the fixing jacket 41 , and the plurality of clamping arms 411 are respectively slidably connected to the control member 42 .

[0029] Specifically, the bottom of the fixed sleeve 41 is fixedly arranged in the lower mold core 21, and a plurality of clamping arms 411 are arranged along a circumferential array on the top of the fixed sleeve 41. The tops of the plurality of clamping arms 411 are close to each other inwardly to facilitate the placement of the workpiece, and the plurality of clamping arms 411 are respectively slidably connected to the control member 42; when the control member 42 moves upward, the plurality of clamping arms 411 are stretched outward, and the inner hole of the workpiece is stretched outward to fix the position of the workpiece.

[0030] In one embodiment, Figure 2 As shown, a control sleeve 421 is provided on the top of the control member 42, a through slot 422 is opened through the middle of the bottom end, and driving slots 423 are opened on the control member 42 on both sides of the through slot 422. The through slot 422 and the driving slot 423 are respectively slidably connected to the driving device 5, and the control sleeve 421 is respectively slidably connected to the multiple clamping arms 411.

[0031] Specifically, a control sleeve 421 is provided on the top of the control member 42, and the middle diameter of the control sleeve 421 is larger than the top diameter, so that during the rising process of the control sleeve 421, the multiple clamping arms 411 on the fixed sleeve are gradually opened, and a through groove 422 is horizontally penetrated through the bottom of the control member 42 in the left and right directions, and driving grooves 423 are respectively provided on the control member 42 on the front and rear sides of the through groove 422, and the through groove 422 is used to accommodate the driving device 5. The driving groove 423 is slidably connected to the driving device 5 to convert the horizontal movement of the driving device 5 into the vertical movement of the control member 42.

[0032] In one embodiment, Figure 3 As shown, the driving device 5 includes a driving rod 51, a driving cylinder 52 and a pin 53. The driving cylinder 52 is arranged on one side of the lower mold 2, the driving rod 51 is arranged at the working end of the driving cylinder 52 and is slidably connected to the through groove 422, and the pin 53 is arranged on the driving rod 51 and is slidably connected to the driving groove 423.

[0033] Specifically, the driving cylinder 52 is arranged on the lower mold 2 on one side of the lower mold core 21, and the driving rod 51 is arranged at the working end of the driving cylinder 52, the middle part of which is located in the through groove 422 and is slidably connected with the through groove 422, and the pin shaft 53 passes through the driving rod 51 in the front and rear directions, and the front and rear ends of the pin shaft 53 are respectively located in the front and rear driving grooves 423, so that when the driving rod 51 moves horizontally, it drives the control part 42 to move vertically.

[0034] In one embodiment, Figure 3 , 4 As shown, the demoulding device 6 includes a demoulding ejector rod 61 and a return spring 62. There is at least one demoulding ejector rod 61, which is slidably disposed in the lower mold core 21. The return spring 62 is sleeved on the demoulding ejector rod 61. A driving platform 54 is disposed on the driving rod 51. The demoulding ejector rod 61 and the driving platform 54 are slidably connected.

[0035] Specifically, the demolding ejector rod 61 is vertically slidably arranged in the lower mold core 21, a demolding platform 611 is arranged on the top of the demolding ejector rod 61, a limiting platform 612 is arranged in the middle, a reset spring 62 is sleeved on the demolding ejector rod 61 above the limiting platform 612, a driving platform 54 is arranged on the driving rod 51, and the bottom end of the demolding ejector rod 61 is slidably connected to the driving platform 54; it can be understood that when the driving rod 51 moves to the right, the demolding ejector rod 61 and the driving platform 54 are not in contact, and when the driving rod 51 moves to the left, the demolding ejector rod 61 slides along the driving platform 54, thereby causing the demolding ejector rod 61 to move upward to eject the workpiece.

[0036] In one embodiment, Figure 4 As shown, the bottom end of the demoulding ejector rod 61 is hemispherical, and a driving inclined surface 541 is provided on the driving platform 54 . The driving inclined surface 541 and the demoulding ejector rod 61 are slidably connected.

[0037] Specifically, in order to reduce the friction between the demoulding ejector rod 61 and the driving platform 54, the bottom end of the demoulding ejector rod 61 is set to a hemispherical shape, and a driving inclined surface 541 is set on the driving platform 54. The driving inclined surface 541 is lower on the left and higher on the right. When the driving rod 51 moves to the left, the demoulding ejector rod 61 is lifted.

[0038] In one embodiment, Figure 4 As shown, there are two demoulding ejector rods 61 , and two driving platforms 54 are arranged on the driving rod 51 . The two demoulding ejector rods 61 correspond to the two driving platforms 54 one by one and are slidably connected.

[0039] Specifically, in order to make the demolding action stable, two demolding ejector pins 61 are arranged in the lower mold core 21, and two driving platforms 54 are arranged on the driving rod 51. The two driving platforms 54 correspond to the two demolding ejector pins 61 respectively. When the driving rod 51 moves, the two driving platforms 54 are slidably connected to the corresponding demolding ejector pins 61 at the same time, thereby ejecting the workpiece from both sides.

[0040] In one embodiment, Figure 5 As shown, positioning blocks 22 are respectively provided on both sides of the lower mold core 21 , and the two positioning blocks 22 are respectively slidably connected to the driving rod 51 .

[0041] Specifically, positioning blocks 22 are respectively disposed on the left and right sides of the lower mold core 21 , and the two positioning blocks 22 are respectively slidably connected to the driving rod 51 to limit the driving rod 51 .

[0042] In one embodiment, Figure 1 As shown, a connecting rod 12 is provided on the top of the upper die 1, and the connecting rod 12 is used to connect to an external punching machine.

[0043] Specifically, a connecting rod 12 is provided on the top of the upper die 1 , and the connecting rod 12 is used to connect to an external punching machine, so that the upper die 1 is driven to move by the external punching machine.

[0044] In one embodiment, Figure 3 As shown, a fixing bolt 55 is provided at the bottom end of the driving rod 51 at a position corresponding to the pin shaft 53 for fixing the pin shaft 53 .

[0045] Specifically, a fixing bolt 55 is spirally disposed at the bottom end of the driving rod 51 , and the fixing bolt 55 is used to fix the pin shaft 53 .

[0046] It should be noted that the above-mentioned technical features are further combined with each other to form various embodiments not listed above, which are all deemed to be within the scope of the present utility model specification; and, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. A trimming die for fixing a workpiece and demoulding, comprising an upper die (1) and a lower die (2), wherein the lower die (2) is provided with a plurality of guide pillars (3), the upper die (1) is slidably arranged on the plurality of guide pillars (3), an upper die core (11) is arranged at the bottom of the upper die (1), a lower die core (21) is arranged at the top of the lower die (2), the upper die core (11) and the lower die core (21) are buckled, It is characterized in that The invention also comprises a workpiece fixing device (4), a driving device (5) and a demoulding device (6), wherein the workpiece fixing device (4) is arranged in the lower mold core (21), the demoulding device (6) is slidably arranged in the lower mold core (21), the driving device (5) is arranged on one side of the lower mold core (21), and is slidably connected to the workpiece fixing device (4) and the demoulding device (6) respectively, the workpiece fixing device (4) comprises a fixed sleeve (41) and a control member (42), the fixed sleeve (41) is arranged in the lower mold core (21), the control member (42) is slidably arranged in the fixed sleeve (41), and is slidably connected to the driving device (5), and the driving device (5) drives the control member (42) to slide in the fixed sleeve (41), so that the fixed sleeve (41) is deformed and the workpiece is clamped.

2. A trimming die for facilitating workpiece fixation and demoulding according to claim 1, It is characterized in that The bottom of the fixed jacket (41) is arranged in the lower mold core (21), and a plurality of clamping arms (411) are arranged around the top of the fixed jacket (41), and the plurality of clamping arms (411) are respectively slidably connected to the control member (42).

3. A trimming die for facilitating workpiece fixation and demoulding according to claim 2, It is characterized in that A control sleeve (421) is provided on the top of the control member (42), and a through slot (422) is provided through the middle of the bottom end. Driving slots (423) are provided on the control member (42) on both sides of the through slot (422). The through slot (422) and the driving slot (423) are respectively slidably connected to the driving device (5), and the control sleeve (421) is respectively slidably connected to the plurality of clamping arms (411).

4. A trimming die for facilitating workpiece fixation and demoulding according to claim 3, It is characterized in that The driving device (5) comprises a driving rod (51), a driving cylinder (52) and a pin shaft (53); the driving cylinder (52) is arranged on one side of the lower mold (2); the driving rod (51) is arranged at the working end of the driving cylinder (52) and is slidably connected to the through groove (422); the pin shaft (53) is arranged on the driving rod (51) and is slidably connected to the driving groove (423).

5. A trimming die for facilitating workpiece fixation and demoulding according to claim 4, It is characterized in that The demoulding device (6) comprises a demoulding ejector rod (61) and a return spring (62). There is at least one demoulding ejector rod (61) which is slidably arranged in the lower mold core (21). The return spring (62) is sleeved on the demoulding ejector rod (61). A driving platform (54) is arranged on the driving rod (51). The demoulding ejector rod (61) and the driving platform (54) are slidably connected.

6. A trimming die for facilitating workpiece fixation and demoulding according to claim 5, It is characterized in that The bottom end of the demoulding ejector rod (61) is hemispherical, and a driving inclined surface (541) is provided on the driving platform (54), and the driving inclined surface (541) and the demoulding ejector rod (61) are slidably connected.

7. A trimming die for facilitating workpiece fixation and demoulding according to claim 5, It is characterized in that There are two demoulding ejector rods (61), and two driving platforms (54) are arranged on the driving rod (51). The two demoulding ejector rods (61) correspond to the two driving platforms (54) one by one and are slidably connected.

8. A trimming die for facilitating workpiece fixation and demoulding according to claim 4, It is characterized in that Positioning blocks (22) are respectively arranged on both sides of the lower mold core (21), and the two positioning blocks (22) are respectively slidably connected to the driving rod (51).

9. A trimming die for facilitating workpiece fixation and demoulding according to claim 1, It is characterized in that A connecting rod (12) is provided on the top of the upper die (1), and the connecting rod (12) is used to connect to an external punching machine.

10. A trimming die for facilitating workpiece fixation and demoulding according to claim 4, It is characterized in that A fixing bolt (55) is provided at the bottom end of the driving rod (51) at a position corresponding to the pin shaft (53) for fixing the pin shaft (53).

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