Long inner hole machining device of casting pin for die-casting die

Abstract

The invention relates to the technical field of die manufacturing, and discloses a long inner hole machining device for a casting pin for a die-casting die, the long inner hole machining device comprises a base, a baffle and a machining cavity are fixedly connected to the upper surface of the middle of the base, a supporting plate is fixedly connected to the upper surface of the right side of the base, and a first motor is fixedly connected to the upper surface of the left side of the base; the output end of the first motor is connected with a forward threaded rod, the outer wall of the right side of the forward threaded rod is fixedly connected with a reverse threaded rod, the outer wall of the forward threaded rod is in threaded connection with a drill rod driving seat, the outer wall of the supporting plate is fixedly connected with a first supporting rod and a second supporting rod, and the outer wall of the first supporting rod is in sliding connection with a limiting seat. The first motor drives the drill rod driving seat and the workpiece driving seat to move relatively, so that accurate alignment machining of the cast pin is guaranteed, the accuracy of an inner hole of the cast pin is higher after the inner hole of the cast pin is formed, the problem of inner hole deviation caused by inaccurate positioning can be effectively avoided in actual machining, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mold manufacturing, and specifically relates to a long inner hole processing device for a casting pin of a die-casting mold. Background Art

[0002] In the mold manufacturing industry, die-casting molds, as key tools for producing various precision parts, their quality and performance play a decisive role in the product quality. The casting pin is an important component in the die-casting mold, and the processing quality of the long inner hole of the casting pin directly affects the working efficiency, service life of the die-casting mold, and the precision of the produced parts. With the rapid development of the manufacturing industry, the requirements for the precision, reliability, and production efficiency of die-casting molds are getting higher and higher, which makes the processing technology of the long inner hole of the casting pin become one of the research focuses in the field of mold manufacturing.

[0003] In the traditional processing technology of the long inner hole of the casting pin, an ordinary drill press is often used for processing. The processing process usually fixes the casting pin workpiece on the drill press workbench, and through manual operation of the feed mechanism of the drill press, the drill rod feeds towards the casting pin workpiece for drilling. This processing method relies on manual operation and requires a high level of technical proficiency of the workers.

[0004] Due to the lack of precise positioning in the traditional processing method, there is a large alignment deviation between the casting pin workpiece and the drill rod during processing, resulting in poor inner hole position accuracy. Moreover, the stability of the drill press itself is insufficient, and the drill rod is prone to shaking during the drilling process, making it difficult to achieve high-precision requirements for the roundness and straightness of the inner hole. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a long inner hole processing device for a casting pin of a die-casting mold, which solves the problem that the traditional processing method lacks precise positioning, resulting in a large alignment deviation between the casting pin workpiece and the drill rod during processing, and poor inner hole position accuracy.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A long inner hole processing device for a casting pin of a die-casting mold, including a base. The upper surface of the middle part of the base is fixedly connected with a baffle and a processing cavity. The upper surface of the right side of the base is fixedly connected with a support plate. The upper surface of the left side of the base is fixedly connected with a motor I. The output end of the motor I is connected with a forward threaded rod. The outer wall of the right side of the forward threaded rod is fixedly connected with a reverse threaded rod. The outer wall of the forward threaded rod is threadedly connected with a drill rod driving seat. The outer wall of the reverse threaded rod is threadedly connected with a workpiece driving seat. The outer wall of the support plate is fixedly connected with a support rod I and a support rod II. The outer wall of the support rod I is slidably connected with a limit seat.

[0007] Preferably, the drill rod driving seat includes a housing. The lower outer wall of the housing is threadedly connected to the outer wall of the forward threaded rod. The inside of the housing is fixedly connected with a motor II. The output end of the motor II is connected with a fixing buckle.

[0008] Preferably, the drill pipe driving seat further includes a drill pipe body, the outer wall of the drill pipe body is arranged inside the fixing buckle, a positioning seat is arranged on the outer wall of the drill pipe body, and the inner wall of the positioning seat is slidably connected to the outer walls of the first support rod and the second support rod.

[0009] Preferably, the workpiece driving seat includes a rotating column, a limiting block is rotatably connected to the outer wall of the rotating column, the inner part of the limiting block is slidably connected to the outer walls of the first support rod and the second support rod, a support block is fixedly connected to the bottom end of the limiting block, and a clamping assembly is arranged inside the workpiece driving seat.

[0010] Preferably, the limiting seat includes a sleeve, the inner part of the sleeve is slidably connected to the outer walls of the first support rod and the second support rod, a fixing column is fixedly connected to the outer wall of the sleeve, a threaded column is threadedly connected to the inside of the fixing column, and a handle is fixedly connected to the top end of the threaded column.

[0011] Preferably, the limiting seat further includes a first rotating rod, the inner wall of the first rotating rod is rotatably connected to the outer wall of the threaded column, a second rotating rod is rotatably connected to the outer wall of the first rotating rod, the inner wall of the second rotating rod is rotatably connected to the outer wall of the fixing column, and a clamping pad is fixedly connected to the outer wall of the second rotating rod.

[0012] Preferably, the clamping assembly includes a third motor, the outer wall of the third motor is fixedly connected to the inside of the limiting block, the output end of the third motor is connected to an electric push rod, and the output end of the electric push rod is connected to a connecting block.

[0013] Preferably, the clamping assembly further includes a first connecting rod, the outer wall of the first connecting rod is rotatably connected to the inner wall of the connecting block, a second connecting rod is rotatably connected to the outer wall of the first connecting rod, and a third connecting rod is fixedly connected to the outer wall of the second connecting rod.

[0014] Preferably, the outer walls of the first support rod and the second support rod are fixedly connected to the inside of the baffle, the inner wall of the limiting seat is slidably connected to the outer wall of the second support rod, and the inside of the drill pipe driving seat and the workpiece driving seat are slidably connected to the outer walls of the first support rod and the second support rod.

[0015] Preferably, holes are arranged inside the processing cavity, and a water tank is fixedly connected to the outer wall of the drill pipe driving seat.

[0016] Working principle: Start Motor 1. Motor 1 drives the forward threaded rod and the reverse threaded rod to rotate synchronously. Place the cast pin workpiece to be processed on the clamping assembly of the workpiece driving seat. By operating Motor 3, the output end of Motor 3 drives the electric push rod to rotate, and the connecting block on the outer wall of the electric push rod rotates accordingly, thereby driving the movement of Link Rod 1, Link Rod 2, and Link Rod 3, adjusting the clamping assembly to a proper position to firmly clamp the cast pin workpiece. At the same time, according to the length of the cast pin workpiece, by rotating the handle, the threaded column rotates within the fixed column, driving the movement of Rotating Rod 1 and Rotating Rod 2 to adjust the position of the cushion pad, and using the limit seat to limit the stroke of the drill rod body.

[0017] During the rotation process of the drill rod body and the cast pin workpiece, the drill rod driving seat continuously moves to the right, and the drill rod body gradually enters the interior of the cast pin workpiece for drilling. Since the drill rod body is of a hollow structure and a water tank is fixedly connected to the outer wall of the drill rod driving seat, during the processing, the cooling oil is transported from the water tank through the hollow part of the drill rod body to the drilling position, playing a role in cooling and temperature reduction, reducing the influence of heat generated by friction on the processing accuracy, and at the same time, it can also reduce the wear of the drill rod and the workpiece.

[0018] When the drilling is completed, Motor 1 rotates in reverse, causing the drill rod driving seat to move to the left and the workpiece driving seat to move to the right, and the two are separated. Turn off Motor 2 and Motor 3, release the clamping assembly, and take out the processed cast pin workpiece to complete one processing process.

[0019] The present invention provides a long internal hole processing device for cast pins used in die-casting molds. It has the following beneficial effects: 1. The present invention drives the relative movement of the drill rod driving seat and the workpiece driving seat through Motor 1, thereby ensuring accurate alignment processing of the cast pin, making the accuracy of the inner hole of the cast pin higher after forming. In actual processing, it can effectively avoid the problem of inner hole deviation caused by inaccurate positioning, and improve the product quality.

[0020] 2. When the present invention drives Link Rod 3 through the electric push rod to clamp cast pin workpieces of different thicknesses to be processed, it can reduce the clamping and debugging time when replacing cast pin workpieces of different sizes, achieve efficient and continuous processing, improve production efficiency, and meet the growing production needs of enterprises.

[0021] 3. The present invention slides the limit seat along Support Rod 2, and limits the moving range of the drill rod driving seat by adjusting its position to prevent the drill rod from advancing excessively. The limit block and the support block in the workpiece driving seat play a supporting role for the rotating column, enhancing the stability of the entire processing process.

[0022] 4. A positioning seat is provided on the outer wall of the drill pipe body of the present invention. The inner wall of the positioning seat is slidably connected to the first support rod and the second support rod, enhancing the stability of the drill pipe during rotation and feeding, further ensuring the machining accuracy. When the drill pipe body rotates at a high speed and performs drilling operations, the positioning seat can prevent the drill pipe from shaking, ensuring the perpendicularity and roundness of the drilled hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a partial structural schematic diagram of the positive threaded rod of the present invention; Figure 3 is a cross-sectional schematic diagram of the internal structure of the drill pipe drive seat of the present invention; Figure 4 is a partial structural schematic diagram of the limit seat of the present invention; Figure 5 is a partial structural schematic diagram of the limit block of the present invention; Figure 6 is a partial structural schematic diagram of the clamping pad of the present invention; Figure 7 is a cross-sectional schematic diagram of the internal structure of the rotating column of the present invention; Figure 8 is a partial structural schematic diagram of the second connecting rod of the present invention.

[0024] Wherein, 1. Base; 2. Baffle; 3. Support plate; 4. First motor; 5. Positive threaded rod; 6. Reverse threaded rod; 7. Drill pipe drive seat; 71. Housing; 72. Second motor; 73. Fixed buckle; 74. Drill pipe body; 75. Positioning seat; 8. Machining cavity; 9. Workpiece drive seat; 91. Rotating column; 92. Limit block; 93. Support block; 10. Limit seat; 101. Sleeve; 102. Fixed column; 103. Threaded column; 104. Handle; 105. First rotating rod; 106. Second rotating rod; 107. Clamping pad; 11. First support rod; 12. Second support rod; 13. Clamping assembly; 131. Third motor; 132. Electric push rod; 133. Connecting block; 134. First connecting rod; 135. Second connecting rod; 136. Third connecting rod. DETAILED DESCRIPTION OF THE INVENTION

[0025] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to the attached Figure 1 - attached Figure 3, an embodiment of the present invention provides a long inner hole processing device for a casting pin used in a die-casting mold, including a base 1. A baffle 2 and a processing cavity 8 are fixedly connected to the upper surface of the middle part of the base 1. A support plate 3 is fixedly connected to the upper surface of the right side of the base 1. A first motor 4 is fixedly connected to the upper surface of the left side of the base 1. The output end of the first motor 4 is connected to a forward threaded rod 5. A reverse threaded rod 6 is fixedly connected to the outer wall of the right side of the forward threaded rod 5. A drill rod driving seat 7 is threadedly connected to the outer wall of the forward threaded rod 5. A workpiece driving seat 9 is threadedly connected to the outer wall of the reverse threaded rod 6. A first support rod 11 and a second support rod 12 are fixedly connected to the outer wall of the support plate 3. A limit seat 10 is slidably connected to the outer wall of the first support rod 11.

[0027] Specifically, first, fix the casting pin workpiece to be processed inside the workpiece driving seat 9 and insert it inside the limit seat 10 at the same time. Start the workpiece driving seat 9, and the workpiece driving seat 9 will drive the casting pin workpiece to rotate reversely inside the limit seat 10. At the same time, start the drill rod driving seat 7, and the drill rod driving seat 7 will drive the drill rod body 74 to rotate. Then start the first motor 4. When the first motor 4 rotates, it will drive the forward threaded rod 5 and the reverse threaded rod 6 to rotate. The rotation of the forward threaded rod 5 will drive the drill rod driving seat 7 to slide on the outer walls of the baffle 2, the first support rod 11 and the second support rod 12. The rotation of the reverse threaded rod 6 will drive the workpiece driving seat 9 and the processing cavity 8 to slide on the outer walls of the baffle 2, the first support rod 11 and the second support rod 12. The drill rod driving seat 7, the workpiece driving seat 9 and the limit seat 10 will move relatively. When the drill rod driving seat 7, the workpiece driving seat 9 and the limit seat 10 move into the processing cavity 8, processing is carried out, so as to ensure accurate alignment processing of the casting pin, make the accuracy of the inner hole of the casting pin higher after forming, and effectively avoid the problem of inner hole deviation caused by inaccurate positioning in actual processing, improving the product quality.

[0028] Please refer to the attached Figure 3 , the drill rod driving seat 7 includes a housing 71. The lower outer wall of the housing 71 is threadedly connected to the outer wall of the forward threaded rod 5. A second motor 72 is fixedly connected to the inside of the housing 71. The output end of the second motor 72 is connected to a fixing buckle 73; the drill rod driving seat 7 further includes a drill rod body 74. The outer wall of the drill rod body 74 is arranged inside the fixing buckle 73. A positioning seat 75 is arranged on the outer wall of the drill rod body 74. The inner wall of the positioning seat 75 is slidably connected to the outer walls of the first support rod 11 and the second support rod 12.

[0029] Specifically, by starting the second motor 72, the second motor 72 drives the fixed buckle 73 and the drill pipe body 74 to rotate. The drill pipe body 74 rotates inside the positioning seat 75, and the positioning seat 75 is used to enhance the stability of the drill pipe body 74. When the positive threaded rod 5 rotates, it drives the outer shell 71 to slide on the outer walls of the first support rod 11 and the second support rod 12. At the same time, the positioning seat 75 slides on the outer walls of the first support rod 11 and the second support rod 12, and finally brings the drill pipe body 74 into the processing chamber 8.

[0030] Please refer to the attached Figure 4 and the attached Figure 5 , the workpiece driving seat 9 includes a rotating column 91. A limiting block 92 is rotatably connected to the outer wall of the rotating column 91. The inside of the limiting block 92 is slidably connected to the outer walls of the first support rod 11 and the second support rod 12. A support block 93 is fixedly connected to the bottom end of the limiting block 92. A clamping assembly 13 is arranged inside the workpiece driving seat 9.

[0031] Specifically, the limiting block 92 is used to support the rotating column 91. The outer wall of the rotating column 91 rotates inside the limiting block 92 and the support block 93. When the reverse threaded rod 6 rotates, it drives the support block 93 to slide. At the same time, the limiting block 92 slides on the outer walls of the first support rod 11 and the second support rod 12, and the limiting block 92 is used to fix the clamping assembly 13.

[0032] Please refer to the attached Figure 6 , the limiting seat 10 includes a sleeve 101. The inside of the sleeve 101 is slidably connected to the outer walls of the first support rod 11 and the second support rod 12. A fixing column 102 is fixedly connected to the outer wall of the sleeve 101. A threaded column 103 is threadedly connected to the inside of the fixing column 102. A handle 104 is fixedly connected to the top end of the threaded column 103; the limiting seat 10 further includes a first rotating rod 105. The inner wall of the first rotating rod 105 is rotatably connected to the outer wall of the threaded column 103. A second rotating rod 106 is rotatably connected to the outer wall of the first rotating rod 105. The inner wall of the second rotating rod 106 is rotatably connected to the outer wall of the fixing column 102. A clamping pad 107 is fixedly connected to the outer wall of the second rotating rod 106.

[0033] Specifically, when it is necessary to assist in clamping the cast pin workpiece to be processed, by manually rotating the handle 104, the rotation of the handle 104 drives the threaded column 103 to rotate, and then drives the first rotating rod 105 to rotate. While the first rotating rod 105 rotates, it drives the second rotating rod 106 and the clamping pad 107 to clamp. The clamping pad 107 is made of rubber material, which can better adapt to cast pin workpieces of different thicknesses.

[0034] Please refer to the attached Figure 7 and the attached Figure 8, the clamping assembly 13 includes a third motor 131. The outer wall of the third motor 131 is fixedly connected inside the limit block 92. The output end of the third motor 131 is fixedly connected with an electric push rod 132, and the output end of the electric push rod 132 is connected with a connecting block 133; the clamping assembly 13 further includes a first connecting rod 134. The outer wall of the first connecting rod 134 is rotatably connected inside the connecting block 133. The outer wall of the first connecting rod 134 is rotatably connected with a second connecting rod 135, and the outer wall of the second connecting rod 135 is fixedly connected with a third connecting rod 136.

[0035] Specifically, when it is necessary to clamp the cast pin workpiece to be processed, start the third motor 131. The third motor 131 drives the electric push rod 132 to rotate. At the same time, the electric push rod 132 will drive the connecting block 133 to slide, thereby driving the first connecting rod 134 to rotate. At the same time, it will drive the second connecting rod 135 to clamp the cast pin workpiece to be processed, so that when replacing cast pin workpieces of different sizes, the clamping and debugging time can be reduced, efficient continuous processing can be achieved, the production efficiency can be improved, and the growing production demand of the enterprise can be met.

[0036] Please refer to the appendix Figure 1 , the outer walls of the first support rod 11 and the second support rod 12 are fixedly connected inside the baffle 2. The inner wall of the limit seat 10 is slidably connected to the outer wall of the second support rod 12. The insides of the drill rod driving seat 7 and the workpiece driving seat 9 are slidably connected to the outer walls of the first support rod 11 and the second support rod 12; there are holes inside the processing cavity 8, and a water tank is fixedly connected to the outer wall of the drill rod driving seat 7.

[0037] Specifically, the outer walls of the first support rod 11 and the second support rod 12 are fixedly connected inside the baffle 2, providing a stable support structure for the drill rod driving seat 7 and the workpiece driving seat 9. The water tank transports the cooling liquid to the drill rod, which can effectively reduce the temperature of the drill rod and the workpiece and reduce thermal deformation. At the same time, the cooling liquid can also play a lubricating role between the drill rod and the workpiece, reduce the friction coefficient, reduce the wear of the drill rod, extend the service life of the drill rod, and improve the processing efficiency and quality.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long inner hole machining device for a casting pin used in a die-casting mold, comprising a base (1), characterized in that, On the upper surface of the middle part of the base (1), a baffle (2) and a processing chamber (8) are fixedly connected. On the upper surface of the right side of the base (1), a support plate (3) is fixedly connected. On the upper surface of the left side of the base (1), a first motor (4) is fixedly connected. The output end of the first motor (4) is connected to a forward threaded rod (5). On the outer wall of the right side of the forward threaded rod (5), a reverse threaded rod (6) is fixedly connected. On the outer wall of the forward threaded rod (5), a drill rod driving seat (7) is threadedly connected. On the outer wall of the reverse threaded rod (6), a workpiece driving seat (9) is threadedly connected. On the outer wall of the support plate (3), a first support rod (11) and a second support rod (12) are fixedly connected. On the outer wall of the first support rod (11), a limit seat (10) is slidably connected.

2. The long inner hole processing device for a casting pin of a die-casting mold according to claim 1, characterized in that, The drill rod driving seat (7) includes a housing (71). The outer wall of the lower side of the housing (71) is threadedly connected to the outer wall of the forward threaded rod (5). Inside the housing (71), a second motor (72) is fixedly connected. The output end of the second motor (72) is connected to a fixing buckle (73).

3. The long inner hole processing device for the casting pin used in the die-casting mold according to claim 1, characterized in that, The drill rod driving seat (7) further includes a drill rod body (74). The outer wall of the drill rod body (74) is arranged inside the fixing buckle (73). On the outer wall of the drill rod body (74), a positioning seat (75) is arranged. The inner wall of the positioning seat (75) is slidably connected to the outer walls of the first support rod (11) and the second support rod (12).

4. The long inner hole processing device for a casting pin used in a die-casting mold according to claim 1, wherein, The workpiece driving seat (9) includes a rotating column (91). On the outer wall of the rotating column (91), a limit block (92) is rotatably connected. The inner part of the limit block (92) is slidably connected to the outer walls of the first support rod (11) and the second support rod (12). The bottom end of the limit block (92) is fixedly connected to a support block (93). Inside the workpiece driving seat (9), a clamping assembly (13) is arranged.

5. The long inner hole processing device for the casting pin used in the die-casting mold according to claim 1, characterized in that, The limit seat (10) includes a sleeve (101). The inner part of the sleeve (101) is slidably connected to the outer walls of the first support rod (11) and the second support rod (12). On the outer wall of the sleeve (101), a fixing column (102) is fixedly connected. Inside the fixing column (102), a threaded column (103) is threadedly connected. The top end of the threaded column (103) is fixedly connected to a handle (104).

6. The long inner hole processing device for a casting pin used in a die-casting mold according to claim 3, characterized in that, The limit seat (10) further includes a first rotating rod (105). The inner wall of the first rotating rod (105) is rotatably connected to the outer wall of the threaded column (103). On the outer wall of the first rotating rod (105), a second rotating rod (106) is rotatably connected. The inner wall of the second rotating rod (106) is rotatably connected to the outer wall of the fixing column (102). On the outer wall of the second rotating rod (106), a clamping pad (107) is fixedly connected.

7. The long inner hole processing device for a casting pin used in a die-casting mold according to claim 4, characterized in that, The clamping assembly (13) includes a third motor (131). The outer wall of the third motor (131) is fixedly connected inside the limit block (92). The output end of the third motor (131) is connected to an electric push rod (132). The output end of the electric push rod (132) is connected to a connecting block (133).

8. The long inner hole processing device for the casting pin used in the die-casting mold according to claim 7, characterized in that, The clamping assembly (13) further includes a first connecting rod (134). The outer wall of the first connecting rod (134) is rotatably connected to the inner wall of the connecting block (133). A second connecting rod (135) is rotatably connected to the outer wall of the first connecting rod (134). A third connecting rod (136) is fixedly connected to the outer wall of the second connecting rod (135).

9. The long inner hole processing device for the casting pin used in the die-casting mold according to claim 1, characterized in that, The outer walls of the first support rod (11) and the second support rod (12) are fixedly connected to the inside of the baffle (2). The inner wall of the limit seat (10) is slidably connected to the outer wall of the second support rod (12). The inside of the drill rod driving seat (7) and the workpiece driving seat (9) is slidably connected to the outer walls of the first support rod (11) and the second support rod (12).

10. The long inner hole processing device for the casting pin used in the die-casting mold according to claim 1, wherein, A hole is provided inside the processing chamber (8). A water tank is fixedly connected to the outer wall of the drill rod driving seat (7).

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