Pier-shaped mold

Abstract

The utility model relates to the field of stamping dies, in particular to a pier type die which comprises an upper die base, a lower die base, an upper forming block, an upper pressing block and a lower fixing block, the upper die base and the lower die base can move oppositely in the vertical direction, and the lower fixing block is arranged on the lower die base. The upper pressing block and the upper forming block are arranged on the upper die base. The upper pressing block is sleeved with the lower fixing block, and a gap consistent with the wall thickness of a product is formed between the upper pressing block and the lower fixing block; the diameter of the upper forming block is smaller than that of the lower fixing block, and an inclined knife edge is arranged on the edge of the lower end of the upper forming block. First mounting grooves are formed in the circumferential surface of the lower fixing block at intervals, and lower sliding blocks and driving structures are arranged in the first mounting grooves; the driving structure is connected with the lower sliding block and drives the lower sliding block to obliquely move towards the circumferential face of the lower fixing block. According to the design, a C-angle structure of the inner diameter end face edge of a product can be rapidly formed through stamping, and lathe milling is not needed again; and the demolding efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of stamping dies, in particular to a pier-shaped die. Background Art

[0002] During the stamping production process of pier-type products, the end face edge of the inner diameter of the pier-type products will form a rounded corner structure due to the stamping stretching. Most processed products require the end face edge of the inner diameter of the product to form a C-angle structure. Therefore, after the pier-type products are stamped, they still need to be placed on a lathe for milling to form the C-angle structure of the end face edge of the inner diameter of the product. As a result, the production process of such pier-type products is relatively complicated and requires multiple transfer processing. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pier-shaped die which can quickly form the edge of the inner diameter end face of a product by stamping and does not need to be milled by a lathe again.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a pier-type mold, including an upper mold base, a lower mold base, an upper forming block, an upper pressure block and a lower fixed block, the upper mold base and the lower mold base are movable toward each other up and down, the lower fixed block is arranged on the lower mold base, and it is cylindrical for sleeve installation of the product; the upper pressure block and the upper forming block are arranged on the upper mold base; the upper pressure block is a hollow cylinder, which is sleeved with the lower fixed block and forms a gap consistent with the wall thickness of the product between the lower fixed block; the upper forming block is cylindrical, and it is opposite to the center of the lower fixed block, the diameter of the upper forming block is smaller than the diameter of the lower fixed block and the lower end edge thereof is provided with an inclined knife edge; the circumferential surface of the lower fixed block is provided with first mounting grooves at intervals, and the first mounting groove is provided with a lower slider and a driving structure; the driving structure is connected to the lower slider and drives the lower slider to move obliquely toward the circumferential surface of the lower fixed block.

[0005] Furthermore, a first sliding groove inclined toward the peripheral surface of the lower fixed block is provided in the first installation groove, and the lower sliding block is movably matched with the first sliding groove.

[0006] Furthermore, the driving structure includes a first lifting block and a driving cylinder, the first lifting block is arranged on the lower side of the lower sliding block and connected to the lower end surface of the lower sliding block; the lower sliding block protrudes toward the first sliding groove and is provided with a guide block cooperating therewith, and a spring is provided between the guide block and the end of the first sliding groove.

[0007] Furthermore, the upper pressure block includes an upper pressure seat and multiple upper sliders, a through hole is provided in the middle of the upper pressure seat, a plurality of second mounting grooves are provided along the inner wall of the through hole, an upper slider is provided in the second mounting groove, and the upper slider moves toward the middle of the through hole.

[0008] Furthermore, a second sliding groove perpendicular to the diameter direction of the through hole is provided in the second installation groove, and the upper sliding block is movably matched with the second sliding groove.

[0009] Furthermore, one end of the upper slider away from the through hole extends to the outside of the upper pressure seat, and the extended end of the upper slider is provided with an inclined surface inclined toward the upper mold seat; it also includes an upper pressure rod, which is connected to the upper mold seat, and one end of the upper pressure rod is opposite to the inclined surface of the upper slider.

[0010] Furthermore, protrusions are provided on both sides of one end of the upper sliding block, and a spring is connected between the protrusion and the upper pressure seat.

[0011] The beneficial effects of the utility model are as follows: during processing, the pier-shaped product to be processed is sleeved on the lower fixed block, and the upper and lower mold seats are moved toward each other to drive the upper pressing block to press the outer edge of the pier-shaped product to be processed, while the inner wall size of the pier-shaped product to be processed is controlled by the upper pressing block and the lower fixed block, so as to avoid changes in the wall thickness of the product during subsequent processing; then, the upper forming block is pressed downward, and the inclined blade of the upper forming block is used to punch the edge of the inner diameter end face of the pier-shaped product to be processed, so as to form the required C-angle structure; in the process of closing the mold, the lower sliding block in the lower fixed block is tilted and moved toward the circumference of the lower fixed block under the action of the driving structure, and cooperates with the upper pressing block to form the required inner wall size of the product; and in the process of opening the mold, the lower sliding block in the lower fixed block is moved away from the circumference of the lower fixed block under the action of the driving structure, so that the contact of the circumference of the processed pier-shaped product can be reduced, and the demolding operation of the product is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a pier-shaped product after being processed by a pier-shaped mold according to a specific embodiment of the utility model;

[0013] Figure 2 It is a structural schematic diagram of a pier-shaped mold according to a specific embodiment of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the upper slider and the lower slider of the pier-type mold in the specific implementation mode of the utility model when the mold is closed;

[0015] Figure 4 It is a structural schematic diagram of the upper slider and the lower slider of the pier-type mold in the specific implementation mode of the utility model when the mold is opened.

[0016] Description of labels:

[0017] 1. Upper die seat; 2. Lower die seat; 3. Upper forming block; 4. Upper pressure block; 41. Upper pressure seat; 42. Upper slide block; 421. Inclined surface; 422. Protrusion; 43. Second slide groove; 5. Lower fixed block; 51. First slide groove; 52. Lower slide block; 6. First lifting block; 7. Upper pressure rod. DETAILED DESCRIPTION

[0018] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0019] Please refer to Figures 1 to 4 , a pier-type mold comprises an upper mold base 1, a lower mold base 2, an upper forming block 3, an upper pressing block 4 and a lower fixed block 5, the upper mold base 1 and the lower mold base 2 are movable toward each other up and down, and the lower fixed block 5 is arranged on the lower mold base 2, which is cylindrical and used for sleeve installation of the product; the upper pressing block 4 and the upper forming block 3 are arranged on the upper mold base 1; the upper pressing block 4 is a hollow cylinder, which is sleeved with the lower fixed block 5 and forms a gap with the wall thickness of the product with the lower fixed block 5; the upper forming block 3 is cylindrical, and its center is opposite to the lower fixed block 5, the diameter of the upper forming block 3 is smaller than the diameter of the lower fixed block 5 and an inclined knife edge is provided on the lower end edge; the circumference of the lower fixed block 5 is provided with first mounting grooves at intervals, and a lower slider 52 and a driving structure are provided in the first mounting groove; the driving structure is connected to the lower slider 52 and drives the lower slider 52 to move obliquely toward the circumference of the lower fixed block 5.

[0020] From the above description, it can be seen that the beneficial effects of the utility model are: during processing, the pier-shaped product to be processed is sleeved on the lower fixed block 5, and the upper pressing block 4 is driven to press the outer edge of the pier-shaped product to be processed by the relative movement of the upper and lower mold seats 2, and at the same time, the inner wall size of the pier-shaped product to be processed is controlled by the upper pressing block 4 and the lower fixed block 5 to avoid changes in the wall thickness of the product during subsequent processing; then, the upper forming block 3 is pressed down, and the inclined blade of the upper forming block 3 is used to punch the edge of the inner diameter end face of the pier-shaped product to be processed, so as to form the required C-angle structure; in the process of closing the mold, the lower sliding block 52 in the lower fixed block 5 is tilted and moved toward the circumference of the lower fixed block 5 under the action of the driving structure, and cooperates with the upper pressing block 4 to form the required product inner wall size; and in the process of opening the mold, the lower sliding block 52 in the lower fixed block 5 is moved away from the circumference of the lower fixed block 5 under the action of the driving structure, so that the contact of the circumference of the processed pier-shaped product can be reduced, and the demolding operation of the product is convenient.

[0021] Furthermore, a first sliding groove 51 inclined toward the peripheral surface of the lower fixing block 5 is provided in the first installation groove, and the lower sliding block 52 is movably matched with the first sliding groove 51 .

[0022] It can be known from the above description that, through the cooperation between the first sliding groove 51 in the first installation groove and the lower sliding block 52 , the lower sliding block 52 is able to move obliquely toward the peripheral surface of the lower fixing block 5 .

[0023] Furthermore, the driving structure includes a first lifting block 6 and a driving cylinder, wherein the first lifting block 6 is arranged on the lower side of the lower sliding block 52 and connected to the lower end surface of the lower sliding block 52; the lower sliding block 52 protrudes toward the first sliding groove 51 and is provided with a guide block cooperating therewith, and a spring is provided between the guide block and the end of the first sliding groove 51.

[0024] From the above description, it can be seen that through the cooperation between the first lifting block 6 and the driving cylinder, the lower sliding block 52 can be pushed by the first lifting block 6 and move along the first sliding groove 51 when the mold is closed; when the mold is opened, the first lifting block 6 retracts, and the lower sliding block 52 moves away from the circumference of the lower fixed block 5 under the action of the spring.

[0025] Furthermore, the upper pressure block 4 includes an upper pressure seat 41 and multiple upper sliders 42. A through hole is provided in the middle of the upper pressure seat 41. The inner wall of the through hole is provided with multiple second mounting grooves along its circumference. The upper slider 42 is provided in the second mounting groove, and the upper slider 42 moves toward the middle of the through hole.

[0026] From the above description, it can be seen that the upper pressing seat 41 of the upper pressing block 4 and the plurality of upper sliding blocks 42 are arranged in cooperation with the lower sliding block 52 to further reduce the contact between the upper pressing block 4, the lower fixing block 5 and the product during the mold opening process, thereby improving the demoulding efficiency.

[0027] Furthermore, a second slide groove 43 perpendicular to the diameter direction of the through hole is provided in the second installation groove, and the upper sliding block 42 is movably matched with the second slide groove 43 .

[0028] It can be known from the above description that the upper sliding block 42 cooperates with the second sliding groove 43 which is perpendicular to the diameter direction of the through hole to achieve approaching or moving away from the product.

[0029] Furthermore, one end of the upper slider 42 away from the through hole extends to the outside of the upper pressure seat 41, and the extended end of the upper slider 42 is provided with an inclined surface 421 inclined toward the upper mold seat 1; it also includes an upper pressure rod 7, which is connected to the upper mold seat 1, and one end of the upper pressure rod 7 is opposite to the inclined surface 421 of the upper slider 42.

[0030] From the above description, it can be seen that the upper pressure rod 7 is used as a driving rod. When the mold is closed, the upper pressure rod 7 is used to press the inclined surface 421 at one end of the upper slider 42, so as to drive the upper slider 42 to move toward the product, and form a gap with the lower fixed block 5 that matches the wall thickness of the required product.

[0031] Furthermore, protrusions 422 are provided on both sides of one end of the upper sliding block 42 , and a spring is connected between the protrusion 422 and the upper pressure seat 41 .

[0032] As can be seen from the above description, by utilizing the cooperation between the protrusion 422 of the upper slider 42 and the spring between the upper pressure seat 41, the upper slider 42 can be moved away from the product under the action of the spring during the mold opening process.

[0033] Embodiment 1:

[0034] Application scenarios: During the stamping production process of pier-type products, the end face edge of the inner diameter of the pier-type products will form a rounded corner structure due to the stamping stretching. Most processed products require the end face edge of the inner diameter of the product to form a C-angle structure. Therefore, after the pier-type products are stamped, they still need to be placed on a lathe for milling to form the C-angle structure of the end face edge of the inner diameter of the product. As a result, the production process of such pier-type products is relatively complex and requires multiple transfer processing.

[0035] like Figures 1 to 4 As shown, the pier-type mold of this embodiment includes an upper mold base 1, a lower mold base 2, an upper forming block 3, an upper pressing block 4 and a lower fixed block 5. The upper mold base 1 and the lower mold base 2 are movable toward each other up and down, and the lower fixed block 5 is arranged on the lower mold base 2, which is cylindrical and used for sleeve installation of products; the upper pressing block 4 and the upper forming block 3 are arranged on the upper mold base 1; the upper pressing block 4 is a hollow cylinder, which is sleeved with the lower fixed block 5 and forms a gap with the lower fixed block 5 that is consistent with the wall thickness of the product; the upper forming block 3 is cylindrical, and is opposite to the center of the lower fixed block 5, the diameter of the upper forming block 3 is smaller than the diameter of the lower fixed block 5 and an inclined knife edge is provided on the lower end edge; the circumferential surface of the lower fixed block 5 is provided with first mounting grooves at intervals, and a lower slider 52 and a driving structure are provided in the first mounting groove; the driving structure is connected to the lower slider 52 and drives the lower slider 52 to move obliquely toward the circumferential surface of the lower fixed block 5.

[0036] A first sliding groove 51 is provided in the first installation groove and is inclined toward the peripheral surface of the lower fixing block 5 . The lower sliding block 52 is movably matched with the first sliding groove 51 .

[0037] The driving structure includes a first lifting block 6 and a driving cylinder. The first lifting block 6 is arranged on the lower side of the lower sliding block 52 and connected to the lower end surface of the lower sliding block 52. The lower sliding block 52 protrudes toward the first sliding groove 51 and is provided with a guide block that cooperates with it. A spring is provided between the guide block and the end of the first sliding groove 51.

[0038] The upper pressing block 4 includes an upper pressing seat 41 and a plurality of upper sliding blocks 42. A through hole is provided in the middle of the upper pressing seat 41. A plurality of second mounting grooves are provided along the inner wall of the through hole. The upper sliding blocks 42 are provided in the second mounting grooves. The upper sliding blocks 42 move toward the middle of the through hole.

[0039] A second slide groove 43 perpendicular to the diameter direction of the through hole is provided in the second installation groove, and the upper sliding block 42 is movably matched with the second slide groove 43 .

[0040] The upper slider 42 extends to the outside of the upper pressure seat 41 at one end away from the through hole, and is provided with an inclined surface 421 inclined toward the upper mold seat 1 at the extended end of the upper slider 42; it also includes an upper pressure rod 7, which is connected to the upper mold seat 1, and one end of the upper pressure rod 7 is opposite to the inclined surface 421 of the upper slider 42.

[0041] Bumps 422 are provided on both sides of one end of the upper sliding block 42 , and a spring is connected between the bump 422 and the upper pressing seat 41 .

[0042] Working principle: During processing, the pier-shaped product to be processed is first placed on the lower fixed block 5. Then the upper mold base 1 moves toward the lower mold base 2. During this period, the upper pressing block 4 presses against the outer edge of the pier-shaped product to fix the pier-shaped product. Then, under the action of the upper pressing rod 7, the upper slider 42 moves along the second slide groove 43 toward the pier-shaped product to be processed and finally abuts against it; at the same time, the first lifting block 6 rises and drives the lower slider 52 to move along the first slide groove 51, so that the lower slider 52 also moves toward the inner wall of the pier-shaped product to be processed and finally abuts against it; the distance between the upper slider 42 and the lower slider 52 is the required product wall thickness size; then the upper forming block 3 presses down the pier-shaped product to be processed. The inner diameter end face of the pier-shaped product is stamped and formed by the inclined blade of the upper forming block 3; finally, during the mold opening process, the upper mold base 1 moves away from the lower mold base 2, and the upper slider 42 is not pressed by the upper pressure rod 7 and moves away from the product under the action of the spring; the first lifting block 6 moves downward, and the lower slider 52 moves away from the product under the action of the spring; the upper forming block 3 also moves upward and away from the product; due to the movement of the upper slider 42 and the lower slider 52, the contact area between the pier-shaped product and the upper pressure block 4 and the lower fixed block 5 is greatly reduced, so that the pier-shaped product can be quickly demolded for the next step of processing. The processed product is as follows Figure 1 As shown, the inner diameter end face of the product forms a C-angle structure.

[0043] In the above processing, in order to improve the processing accuracy, the pier-shaped products to be processed need to be subjected to multiple stamping and punching of residual materials at multiple workstations, during which a robot is used for transfer operations.

[0044] To summarize, the pier-type mold provided by the utility model, during processing, the pier-type product to be processed is sleeved on the lower fixed block, and the upper and lower mold seats are moved toward each other to drive the upper pressing block to press the outer edge of the pier-type product to be processed, while the upper pressing block and the lower fixed block are used to control the inner wall size of the pier-type product to be processed, so as to avoid changes in the wall thickness of the product during subsequent processing; then, the upper forming block is pressed downward, and the inclined blade of the upper forming block is used to punch the edge of the inner diameter end face of the pier-type product to be processed, so as to form the required C-angle structure; in the process of closing the mold, the lower sliding block in the lower fixed block is tilted and moved toward the circumference of the lower fixed block under the action of the driving structure, and cooperates with the upper pressing block to form the required inner wall size of the product; and in the process of opening the mold, the lower sliding block in the lower fixed block is moved away from the circumference of the lower fixed block under the action of the driving structure, so as to reduce the contact of the circumference of the processed pier-type product and facilitate the demolding operation of the product.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A pier-shaped mold, characterized in that: It includes an upper die base, a lower die base, an upper forming block, an upper pressure block and a lower fixed block. The upper die base and the lower die base are movable toward each other up and down. The lower fixed block is arranged on the lower die base and is cylindrical for sleeve installation of the product. The upper pressure block and the upper forming block are arranged on the upper die base. The upper pressure block is a hollow cylinder, which is sleeved with the lower fixed block and forms a gap with the lower fixed block that is consistent with the wall thickness of the product. The upper forming block is cylindrical and is opposite to the center of the lower fixed block. The diameter of the upper forming block is smaller than the diameter of the lower fixed block and an inclined cutting edge is arranged on the lower end edge. The circumferential surface of the lower fixed block is provided with first mounting grooves at intervals, and a lower slider and a driving structure are arranged in the first mounting groove. The driving structure is connected with the lower slider and drives the lower slider to move obliquely toward the circumferential surface of the lower fixed block.

2. The pier mold according to claim 1, characterized in that: A first sliding groove inclined toward the peripheral surface of the lower fixed block is provided in the first installation groove, and the lower sliding block is movably matched with the first sliding groove.

3. The pier mold according to claim 2, characterized in that: The driving structure includes a first lifting block and a driving cylinder. The first lifting block is arranged on the lower side of the lower slider and connected to the lower end surface of the lower slider. The lower slider protrudes toward the first slide groove and is provided with a guide block that cooperates with it. A spring is provided between the guide block and the end of the first slide groove.

4. The pier mold according to claim 3, characterized in that: The upper pressing block includes an upper pressing seat and a plurality of upper sliding blocks. A through hole is provided in the middle of the upper pressing seat. A plurality of second mounting grooves are provided along the inner wall of the through hole. An upper sliding block is provided in the second mounting groove. The upper sliding block moves toward the middle of the through hole.

5. The pier mold according to claim 4, characterized in that: A second sliding groove perpendicular to the diameter direction of the through hole is provided in the second installation groove, and the upper sliding block is movably matched with the second sliding groove.

6. The pier mold according to claim 5, characterized in that: The upper slider extends to the outer side of the upper pressure seat at one end away from the through hole, and the extended end of the upper slider is provided with an inclined surface inclined toward the upper mold seat; it also includes an upper pressure rod, which is connected to the upper mold seat, and one end of the upper pressure rod is opposite to the inclined surface of the upper slider.

7. The pier mold according to claim 6, characterized in that: Bumps are arranged on both sides of one end of the upper sliding block, and a spring is connected between the bump and the upper pressure seat.

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