Machining device for a mold and method thereof

Abstract

The application relates to the technical field of milling machining, in particular to a machining device for a mold, which comprises a bottom plate, a clamping unit and a milling mechanism. In the application, after the guide column is centered and clamped by the clamping group, the moving plate moves left, and the moving strip is synchronously moved left by the pushing plate, so that the distance between the milling equipment and the clamping roller arranged on the moving strip in the left-right direction is always kept unchanged; after the clamping roller completes clamping of the guide column, the milling of the guide column by the milling equipment is more stable, and the guide column after clamping is prevented from forming a cantilever beam structure, thereby reducing the machining error caused by the cantilever beam effect. In the application, the position of the milling equipment is limited through cooperation between the locking group one and the locking group two, so that after the milling equipment moves to the specified machining position, the milling position on the guide column by the milling equipment is more accurate, and the machining error caused by the tool setting process is avoided.

Description

Technical Field

[0001] This invention relates to the field of milling technology, specifically to a machining apparatus and method for molds. Background Technology

[0002] Plastic molds are used for injection molding of plastic products. Guide pillars are one of the commonly used metal components in plastic molds. Guide pillars play a positioning and guiding role in plastic molds. Guide pillars are usually made of high-strength metal materials to ensure accuracy. There are usually multiple equally spaced lubrication grooves on the guide pillar body for storing lubricant. The lubricant reduces the wear of the guide pillar and increases its service life.

[0003] Currently, the machining of lubrication grooves on guide posts is usually done by having workers fix the guide post body onto a clamping device, and then using a milling machine (micro milling machine) to perform full-circumference milling on the guide post.

[0004] Currently, there are the following problems in the milling of guide post lubrication grooves: 1. In the current milling technology for guide posts, the guide post is a cantilever beam structure after being clamped by a clamping device. During the milling process, the guide post is rotated by the clamping device, which easily leads to the problem of large machining errors due to the flexible deformation of the cantilever beam during the rotation of the guide post.

[0005] 2. In the current milling technology for guide posts, it is necessary to control the position of the lubrication groove. In the existing technology, workers usually use rulers or other measuring tools to mark the circumferential surface of the guide post to determine the position and length of the lubrication groove. Then, the milling equipment is controlled to mill the marked position. The manual marking method results in a large machining error during the milling process of the guide post. Summary of the Invention

[0006] Therefore, it is necessary to provide a machining apparatus for molds, which aims to solve the above-mentioned problems in the prior art.

[0007] This application provides a machining apparatus for molds, comprising:

[0008] The base plate has a sliding groove extending from left to right on the upper surface of the left section. A support plate is slidably mounted in the sliding groove by an electric slider. The upper surface of the base plate has a sliding groove 2 located behind the sliding groove 1 and extending from left to right. A sliding block is slidably mounted in the sliding groove 2. A moving plate is fixedly mounted on the upper surface of the sliding block. A milling mechanism is provided between the moving plate and the support plate. A fixed plate located on the right side of the sliding groove 1 is fixedly mounted on the upper surface of the base plate. A clamping unit is provided on the fixed plate.

[0009] The clamping unit includes a rotating shaft. The fixed plate has a rotating shaft extending from left to right. A circular connecting plate is fixedly installed on the left end face of the rotating shaft, and the axis of the connecting plate is collinear with the axis of the rotating shaft. The left end face of the connecting plate is provided with a clamping assembly through three horizontal connecting posts.

[0010] The milling mechanism includes a slide groove three. The movable plate has a slide groove three extending from top to bottom. A sliding strip is slidably arranged in the slide groove three. A sliding plate is fixedly arranged on the front end face of the sliding strip. A milling device is arranged on the lower end face of the front part of the sliding plate. The fixed plate has three circumferentially evenly distributed moving slots. A moving strip is slidably arranged in each moving slot. An arc-shaped clamping plate is fixedly arranged on the left side of each moving strip near the axis of rotation through a connecting rod. A clamping roller is rotatably arranged on each clamping plate through two horizontally rotating rods. A pressing group is arranged on the support plate. A transmission group is arranged between the sliding plate and the support plate.

[0011] According to an advantageous embodiment, the clamping assembly includes a clamping disk. The left end face of the connecting plate is fixedly provided with the clamping disk by a plurality of circumferentially evenly distributed and horizontally axially connected columns. The clamping disk has three circumferentially evenly distributed sliding grooves extending outward along a direction perpendicular to the axis of rotation. Each sliding groove is slidably provided with a clamping member by a moving block. The clamping member is divided into two sections from left to right: the left section is inclined upward from left to right, and the right section is horizontal.

[0012] According to an advantageous embodiment, a drive group is provided on the right end face of the clamping disk. The drive group includes a second rotating shaft. The right end face of the clamping disk is rotatably provided with a second rotating shaft whose axis is collinear with the axis of the first rotating shaft. Three circumferentially evenly distributed rotating bars are fixedly provided on the circumferential surface of the second rotating shaft. Each rotating bar is hinged to a corresponding clamping member by a connecting bar.

[0013] According to an advantageous embodiment, a locking assembly 1 is provided between the sliding bar and the base plate. The locking assembly 1 includes a vertical bar. A vertical bar is fixedly provided on the right end face of the sliding bar. A pull rod extending from front to back is slidably passed through the lower section of the vertical bar. A rectangular block is fixedly provided on the rear end face of the pull rod. A spring 1 sleeved on the pull rod is fixedly provided between the rectangular block and the vertical bar. Multiple placement slots are provided between the inner walls of the base plate and the sliding groove 2, equidistantly distributed from left to right. It is divided into two sections. The rear section of the placement slot is an inclined trapezoidal section located on the upper side and inclined upward from left to right. The front section of the placement slot is an irregular fan shape. The inner wall of each placement slot is equipped with a rotating plate through a rotating column. The rear end face of the rotating plate is inclined forward from left to right. The upper end face of the front section of each rotating plate is fixedly equipped with a locking block. The locking block is a trapezoidal section inclined downward from left to right from front to back. The lower end face of each rotating plate is fixedly equipped with a spring two together with the inner wall of the corresponding placement slot.

[0014] According to an advantageous embodiment, a locking assembly two is provided between the base plate and the slide groove two. The locking assembly two includes a slide groove four. The base plate has a slide groove four located behind the slide groove two. A horizontal bar is slidably arranged in the slide groove four. Multiple trapezoidal blocks, equidistant from left to right with their inclined surfaces on the left side, are fixedly arranged on the lower end face of the horizontal bar. Multiple locking grooves, equidistant from left to right, are jointly provided between the inner walls of the slide groove two and the slide groove four. A right-angled trapezoidal locking block two is slidably arranged in each locking groove, and the inclined surface of the locking block two is inclined downward from left to right. A spring three is fixedly arranged between the lower end face of each locking block two and the inner wall of the corresponding locking groove. Two symmetrically distributed push bars are fixedly arranged on the front end face of the horizontal bar, and the push bars are slidably arranged in the slide groove four.

[0015] According to an advantageous embodiment, the clamping assembly includes a second sliding groove. The support plate has three circumferentially evenly distributed second sliding grooves. Each second sliding groove has a transmission column whose axis extends from left to right. The left end face of the support plate is rotatably equipped with a transmission shaft whose axis is collinear with the axis of the first rotating shaft. A rotating disk located on the left side of the support plate is fixedly sleeved on the transmission shaft. The circumferential surface of the rotating disk is fixedly equipped with three circumferentially evenly distributed arc-shaped plates. Each arc-shaped plate has a through-hole first transmission groove. The three transmission columns are respectively located in the corresponding first transmission groove. The right end face of each transmission column is fixedly equipped with a rightward extending clamping plate, and each clamping plate is slidably connected to the corresponding moving bar.

[0016] According to an advantageous embodiment, the transmission assembly includes a lower pressure rod, through which a lower pressure rod located on the front side of the milling equipment and extending from top to bottom is slidably passed. A lower pressure plate is fixedly disposed on the upper end face of the lower pressure rod, and a spring four sleeved on the lower pressure rod is fixedly disposed between the lower pressure plate and the sliding plate. A transmission rod extending from left to right is fixedly disposed on the lower end face of the lower pressure rod through a connecting block. A transmission groove two extending from top to bottom and located on the left side of the lower pressure rod is opened through the support plate. A sliding groove three extending radially along the rotating disk and passing through the left and right sides is opened in the front section of the rotating disk. The transmission rod is located in both the sliding groove two and the sliding groove three.

[0017] According to an advantageous embodiment, a rotating cylinder with its axis collinear with the axis of the first rotating shaft is rotatably disposed on the left end face of the support plate, and the inner wall diameter of the rotating cylinder is larger than the diameter of the guide post. A pressing plate is fixedly disposed on the inner ring surface of the left section of the rotating cylinder. A pushing plate is fixedly disposed on the left end face of the moving plate through an L-shaped strip, and all three moving strips are slidably connected to the pushing plate.

[0018] Furthermore, the present invention also provides a machining method for a mold, comprising the following steps:

[0019] S1. Clamping guide post: The guide post that needs to be milled is placed between three clamping parts. The drive unit drives the three clamping parts to clamp the guide post.

[0020] S2, Position Locking: After the external hydraulic cylinder pushes the sliding block to move to the left along the slide groove to the first working area, the sliding block is positioned in the designated position through the cooperation between locking block one and locking block two, thereby restricting the milling equipment to be in the designated working area.

[0021] S3. Centering and clamping: The external hydraulic cylinder II drives the milling equipment to move downward through the sliding plate. During the downward movement of the sliding plate, the transmission group drives the clamping group to work, so that multiple clamping rollers press tightly against the guide column, thereby completing the centering and clamping of the guide column.

[0022] S4. Milling the lubrication groove: The milling equipment moves downward to mill the guide post. Then, the external motor drives the guide post to rotate through the clamping assembly, thereby performing full-circumference milling on the guide post.

[0023] S5, Leftward Unlock: External hydraulic cylinder two drives the milling equipment to move upward through the sliding bar. The upward movement of the sliding bar drives the pull rod to move upward, causing the rotating plate to rotate and thus driving the locking block one to move downward to unlock. The sliding block moves to the next working area under the push of external hydraulic cylinder one.

[0024] S6, Rightward Unlock: The sliding block moves to the leftmost end of the second slide groove and drives the horizontal bar to move to the left through the push bar. The horizontal bar drives the multiple trapezoidal blocks set on it to move to the left, pushing the corresponding locking block two downward into the locking groove, thus completing the leftward unlock of the sliding block.

[0025] In summary, the present invention has at least one of the following beneficial effects: 1. In the present invention, after the guide post is centered and clamped by the clamping group, the moving plate moves to the left and the moving strip moves to the left synchronously by the pushing plate, so that the distance between the milling equipment and the clamping roller in the left and right directions remains unchanged, making the milling of the guide post by the milling equipment more stable, and at the same time avoiding the formation of a cantilever beam structure after clamping the guide post, thereby reducing the processing error caused by the cantilever beam effect. In the present invention, the position of the milling equipment is limited by the cooperation between locking group one and locking group two, so that after the milling equipment moves to the designated processing position, the milling position on the guide post by the milling equipment is more accurate and the error is reduced.

[0026] 2. In this invention, the sliding plate is driven downward by a transmission group on the sliding plate. The operation of the drive group causes the clamping group to push multiple clamping rollers to center and clamp the guide post. After one milling operation is completed, the sliding plate moves upward and the transmission group causes the clamping group to drive the rotating roller away from the guide post. Then, the push plate drives the clamping roller to move to the left synchronously with the milling equipment. This allows the fixed position of the guide post to move to the left synchronously, avoiding the formation of a cantilever beam structure in the guide post during processing, thereby reducing the error in the milling process of the guide post.

[0027] 3. In this invention, the position of the sliding block in the groove is limited by the shape matching between locking block one and corresponding locking block two, thereby limiting the milling position of the milling equipment. This allows the milling equipment to perform milling on the guide post at a specified position, making the milling position of the guide post more accurate and reducing processing errors. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 A three-dimensional structural schematic diagram of a machining apparatus and guide pillar for a mold provided according to an embodiment of the present invention is shown.

[0030] Figure 2 A three-dimensional structural schematic diagram of the transmission assembly, clamping assembly, and holding assembly provided according to an embodiment of the present invention is shown.

[0031] Figure 3 A three-dimensional structural cross-sectional view of a milling device, a support plate, and a moving bar provided according to an embodiment of the present invention is shown.

[0032] Figure 4 A left view of the rotating disk, the arc plate, and the support plate provided according to an embodiment of the present invention is shown.

[0033] Figure 5 A partial cross-sectional view of the three-dimensional structure of the drive assembly, clamping disk, and clamping member provided according to an embodiment of the present invention is shown.

[0034] Figure 6 A partial cross-sectional view of the three-dimensional structure of the movable plate, vertical bar, and locking assembly provided according to an embodiment of the present invention is shown.

[0035] Figure 7 The present invention provides an embodiment of the invention. Figure 6 Enlarged view of point A in the middle.

[0036] Figure 8 A partial sectional view of the three-dimensional structure of the locking assembly 2, the base plate, and the rotating plate provided according to an embodiment of the present invention is shown.

[0037] The above figures include the following reference numerals:

[0038] 1. Base plate; 2. Slide groove one; 3. Support plate; 30. Rotating cylinder; 300. Clamping plate; 4. Slide groove two; 5. Moving plate; 50. Sliding block; 6. Milling mechanism; 60. Slide groove three; 61. Sliding bar; 610. Sliding plate; 62. Milling equipment; 63. Moving groove; 64. Moving bar; 65. Clamping plate; 650. Clamping roller; 66. Transmission assembly; 660. Lower pressure rod; 661. Lower pressure plate; 662. Spring four; 663. Transmission rod; 664. Transmission groove two; 665. Slide groove three; 67. Pressing assembly; 670. Slide groove two; 671. Transmission column; 672. Transmission shaft; 673. Rotating disk; 674. Arc plate; 675. Transmission groove one; 676. Pressing plate 68. Locking assembly 1; 680. Vertical bar; 681. Pulling rod; 682. Rectangular block; 683. Spring 1; 684. Placement slot; 685. Rotating plate; 686. Locking block 1; 687. Spring 2; 69. Locking assembly 2; 690. Slide groove 4; 691. Horizontal bar; 692. Trapezoidal block; 693. Locking groove; 694. Locking block 2; 695. Spring 3; 696. Push bar; 7. Fixed plate; 70. Push plate; 8. Clamping unit; 80. Rotating shaft 1; 81. Connecting plate; 82. Clamping assembly; 820. Clamping disc; 821. Slide groove 1; 822. Clamping component; 83. Drive assembly; 830. Rotating shaft 2; 831. Rotating bar; 832. Connecting bar. Detailed Implementation

[0039] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, a machining apparatus for molds includes:

[0041] The base plate 1 has a sliding groove 2 extending from left to right on the upper surface of the left section of the base plate 1. A support plate 3 is slidably mounted in the sliding groove 2 by an electric slider. The upper surface of the base plate 1 has a sliding groove 4 extending from left to right behind the sliding groove 2. A sliding block 50 is slidably mounted in the sliding groove 4. A moving plate 5 is fixedly mounted on the upper surface of the sliding block 50. The sliding block 50 is driven to move left and right by an external hydraulic cylinder (not shown in the figure). A milling mechanism 6 is provided between the moving plate 5 and the support plate 3. A fixed plate 7 is fixedly mounted on the upper surface of the base plate 1 on the right side of the sliding groove 2. A clamping unit 8 is provided on the fixed plate 7.

[0042] like Figure 1 and Figure 2 As shown, the clamping unit 8 includes a rotating shaft 80. The rotating shaft 80, with its axis extending from left to right, is rotatably passed through the fixed plate 7. The rotating shaft 80 is connected to an external motor (not shown in the figure). A circular connecting plate 81 is fixedly provided on the left end face of the rotating shaft 80, and the axis of the connecting plate 81 is collinear with the axis of the rotating shaft 80. A clamping assembly 82 is provided on the left end face of the connecting plate 81 through three horizontally aligned connecting posts.

[0043] like Figure 2 , Figure 3 and Figure 6As shown, the milling mechanism 6 includes a sliding groove 60. The sliding plate 5 has a sliding groove 60 extending from top to bottom. A sliding strip 61 is slidably arranged in the sliding groove 60. The sliding strip 61 is driven to move up and down by an external hydraulic cylinder (not shown in the figure). A sliding plate 610 is fixedly arranged on the front end face of the sliding strip 61. A milling device 62 is arranged on the lower end face of the front part of the sliding plate 610. The fixed plate 7 has three circumferentially evenly distributed moving grooves 63. A moving strip 64 is slidably arranged in each moving groove 63. An arc-shaped clamping plate 65 is fixedly arranged on the left side of each moving strip 64 near the axis of the rotating shaft 80 through a connecting rod. A clamping roller 650 is rotatably arranged on each clamping plate 65 through two horizontally rotating rods. A pressing group 67 is arranged on the support plate 3. A transmission group 66 is arranged between the sliding plate 610 and the support plate 3.

[0044] During operation, the operator clamps the section of the guide column that does not require milling using clamping assembly 82. The electric slider moves the clamping assembly 67 and transmission assembly 66 to the right via the support plate 3. External hydraulic cylinder 1 pushes the sliding block 50 to the left to the working area. External hydraulic cylinder 2 then pushes the sliding bar 61 downward. The moving bar 64 drives the milling equipment 62 downward via the sliding plate 610. Simultaneously, the movement of the sliding plate 610 drives the transmission assembly 66. The operation of the transmission assembly 66 causes the clamping assembly 67 to push the three moving bars 64 along the corresponding moving grooves 63 towards the rotating shaft 80, thereby pushing multiple clamping rollers 650 to perform circumferential limiting clamping on the guide column. After clamping, the axis of the guide column is collinear with the axis of the rotating shaft 80. The sliding plate 610 continues to move downward to mill the guide column. Afterward, external motor 1 drives the guide column to rotate via clamping assembly 82 until the milling of the entire circumference of the guide column is completed.

[0045] like Figure 2 and Figure 5 As shown, the clamping assembly 82 includes a clamping disk 820. The left end face of the connecting plate 81 is fixedly provided with the clamping disk 820 by a plurality of circumferentially evenly distributed and horizontally axial connecting columns. The clamping disk 820 has three circumferentially evenly distributed sliding grooves 821 that extend outward along the direction perpendicular to the axis of rotation 80. Each sliding groove 821 is slidably provided with a clamping member 822 by a moving block. Taking the upper clamping member 822 as an example, the clamping member 822 is divided into two sections from left to right. The left section is inclined upward from left to right, and the right section is horizontal.

[0046] like Figure 2 and Figure 5As shown, a drive group 83 is provided on the right end face of the clamping disk 820. The drive group 83 includes a second rotating shaft 830, which is connected to an external motor (not shown in the figure). The right end face of the clamping disk 820 is rotatably provided with a second rotating shaft 830 whose axis is collinear with the axis of the first rotating shaft 80. Three circumferentially evenly distributed rotating bars 831 are fixedly provided on the circumferential surface of the second rotating shaft 830. Each rotating bar 831 is hinged to a corresponding clamping member 822 with a connecting bar 832.

[0047] like Figure 1 , Figure 6 and Figure 7 As shown, a locking assembly 68 is provided between the sliding bar 61 and the base plate 1. The locking assembly 68 includes a vertical bar 680. The vertical bar 680 is fixedly provided on the right end face of the sliding bar 61. A pull rod 681 extending from front to back is slidably passed through the lower part of the vertical bar 680. A rectangular block 682 is fixedly provided on the rear end face of the pull rod 681. A spring 683 sleeved on the pull rod 681 is fixedly provided between the rectangular block 682 and the vertical bar 680. Multiple placement slots 684 are equidistantly distributed from left to right between the inner walls of the base plate 1 and the second sliding groove 4. The structure is divided into two sections from front to back. The rear section of the placement groove 684 is an inclined trapezoidal section located on the upper side and inclined upward from left to right. The front section of the placement groove 684 is an irregular fan shape. The inner wall of each placement groove 684 is equipped with a rotating plate 685 through a rotating column. The rear end face of the rotating plate 685 is inclined forward from left to right. The upper end face of the front section of each rotating plate 685 is fixedly equipped with a locking block 686. The locking block 686 is a trapezoidal shape that is inclined downward from left to right from front to back. The lower end face of each rotating plate 685 is fixedly equipped with a spring 687 together with the inner wall of the corresponding placement groove 684.

[0048] like Figure 6 and Figure 8As shown, a locking assembly 69 is provided between the base plate 1 and the second slide groove 4. The locking assembly 69 includes a fourth slide groove 690. The base plate 1 has a fourth slide groove 690 located behind the second slide groove 4. A horizontal bar 691 is slidably arranged in the fourth slide groove 690. Multiple trapezoidal blocks 692, equidistant from left to right and with their inclined surfaces on the left side, are fixedly arranged on the lower end face of the horizontal bar 691. Multiple blocks 692, arranged from left to right, are provided together on the inner walls of the second slide groove 4 and the fourth slide groove 690. The locking grooves 693 are evenly distributed. Each locking groove 693 has a right-angled trapezoidal locking block 694 that is slidably disposed in it. The inclined surface of the locking block 694 is inclined downward from left to right. The lower end face of each locking block 694 is fixedly disposed with a spring 695 between it and the inner wall of the corresponding locking groove 693. The front end face of the horizontal bar 691 is fixedly disposed with two left-right symmetrically distributed push bars 696, and the push bars 696 are slidably disposed in the slide groove 690.

[0049] During operation, the operator places the other section of the guide post that needs to be milled between the three clamping parts 822. The external motor 2 drives the rotating shaft 2 830 to rotate, thereby causing the three clamping parts 822 to move along the corresponding sliding groove 1 821 through the drive group 83 until the guide post is centered and clamped. Then, the external hydraulic cylinder 1 works to push the milling equipment 62 to the left through the sliding block 50 until the left end face of the sliding block 50 contacts the right end face of the locking block 1 686. The locking group 1 68 and the locking group 2 69 limit the sliding block 50 in the left and right directions.

[0050] like Figure 2 , Figure 3 and Figure 4 As shown, the clamping assembly 67 includes a second sliding groove 670. The support plate 3 has three circumferentially evenly distributed sliding grooves 670. Each sliding groove 670 has a transmission column 671 with its axis extending from left to right. The left end face of the support plate 3 is rotatably equipped with a transmission shaft 672 whose axis is collinear with the axis of the first rotating shaft 80. A rotating disk 673 located on the left side of the support plate 3 is fixedly sleeved on the transmission shaft 672. The circumferential surface of the rotating disk 673 is fixedly equipped with three circumferentially evenly distributed arc-shaped plates 674. Each arc-shaped plate 674 has a through-hole transmission groove 675. The three transmission columns 671 are respectively located in the corresponding transmission groove 675. The right end face of each transmission column 671 is fixedly equipped with a rightward-extending clamping plate 676, and each clamping plate 676 is slidably connected to the corresponding moving bar 64.

[0051] like Figure 2 , Figure 3 and Figure 4As shown, the transmission assembly 66 includes a lower pressure rod 660. The lower pressure rod 660, located on the front side of the milling equipment 62 and extending from top to bottom, slides through the sliding plate 610. A lower pressure plate 661 is fixedly installed on the upper end face of the lower pressure rod 660. A spring 662, sleeved on the lower pressure rod 660, is fixedly installed between the lower pressure plate 661 and the sliding plate 610. A transmission rod 663, extending from left to right, is fixedly installed on the lower end face of the lower pressure rod 660 through a connecting block. A transmission groove 664, located on the left side of the lower pressure rod 660 and extending from top to bottom, is opened through the support plate 3. A sliding groove 665, extending radially along the rotating disk 673 and passing through the left and right sides, is opened in the front part of the rotating disk 673. The transmission rod 663 is located in both the sliding groove 670 and the sliding groove 665.

[0052] like Figure 2 and Figure 3 As shown, a rotating cylinder 30 with its axis collinear with the axis of the rotating shaft 80 is rotatably mounted on the left end face of the support plate 3, and the inner diameter of the rotating cylinder 30 is larger than the diameter of the guide post. A pressing plate 300 is fixedly mounted on the inner ring surface of the left section of the rotating cylinder 30. A pushing plate 70 is fixedly mounted on the left end face of the moving plate 5 through an L-shaped strip. All three moving strips 64 are slidably connected to the pushing plate 70.

[0053] During operation, the electric slider pushes the support plate 3 to move to the right. The support plate 3 drives the rotating cylinder 30 mounted on it to move to the right to the left section of the guide post. Through the shape fit between the rotating cylinder 30 and the guide post, the axis of the guide post is initially positioned. Then, the external hydraulic cylinder 2 pushes the sliding plate 610 downward through the sliding bar 61. The movement of the sliding plate 610 drives the transmission group 66 to work. Through the downward movement of the transmission rod 663 in the transmission group 66, the three clamping plates 676 in the clamping group 67 push the corresponding moving bar 64 along the moving groove 63 towards the rotating shaft 80 until each clamping roller 650 presses tightly against the guide post body, completing the centering and clamping of the guide post. Then, the external motor 1 drives the guide post to rotate through the clamping group 82. The sliding plate 610 continues to move downward, driving the milling equipment 62 to perform milling on the guide post. The milling equipment 62 performs full-circumference milling on the guide post.

[0054] In practice, the staff places the other section of the guide post that needs to be milled between the three clamping parts 822. The external motor 2 drives the three rotating bars 831 set on it to rotate through the rotating shaft 2 830. Each rotating bar 831 drives the corresponding moving block to move along the sliding groove 1 821 towards the rotating shaft 2 830 through the connecting bar 832. Each moving block drives the corresponding clamping part 822 to move until the clamping of the guide post by the three clamping parts 822 is completed.

[0055] After clamping the right section of the guide post, as the electric slider drives the bracket plate 3 to move to the right, the rotating cylinder 30 fits onto the guide post during its movement to the right, until the left end face of the guide post is in close contact with the clamping plate 300, thus completing the initial positioning of the guide post.

[0056] After the clamping plate 300 is pressed against the left end face of the guide post, the external hydraulic cylinder one works to push the moving plate 5 to move to the left along the slide groove two 4 through the sliding block 50. The moving plate 5 drives the push plate 70 to move to the left through the L-shaped strip. The push plate 70 drives the three moving strips 64 to move to the left synchronously with the moving plate 5. During the process of the sliding block 50 moving to the left to the first locking group two 69 and the locking group one 68, through the shape fit between the inclined surface of the locking block two 694 in the locking group two 69 and the sliding block 50, the sliding block 50 pushes the locking block two 694 to move downward. 4. The movement causes the spring 3 695 to be compressed and deformed until the left end face of the sliding block 50 is in close contact with the right end face of the locking block 1 686. The locking block 1 686 prevents the sliding block 50 from moving to the left. The elastic force generated by the deformation of the spring 3 695 acts on the locking block 2 694, pushing the locking block 2 694 to move upward and reset. The left end face of the reset locking block 2 694 prevents the sliding block 50 from moving to the right. The locking blocks 1 686 and 2 694 limit the position of the sliding block 50 in the left and right directions, thereby completing the position limitation of the milling equipment 62.

[0057] After the position of the milling equipment 62 is defined, the external hydraulic cylinder 2 pushes the sliding plate 610 downward through the sliding bar 61. The sliding plate 610 drives the milling equipment 62 downward. The downward movement of the sliding plate 610 drives the pressure rod 660 downward synchronously. The pressure rod 660 drives the transmission rod 663 downward synchronously through the connecting block. During the downward movement of the transmission rod 663, the inner wall of the sliding groove 665 hinders the downward movement of the transmission rod 663, thereby causing the spring 662 to be stretched and deformed. The elastic force generated by the deformation of the spring 662 acts on the inner wall of the sliding groove 665 through the transmission rod 663. The shape fit between the transmission rod 663 and the sliding groove 665 enables the transmission... Rod 663 pushes rotating disk 673 to rotate, rotating disk 673 drives three arc-shaped plates 674 set on it to rotate. Through the shape fit between the inner wall of transmission groove 675 and transmission column 671, the three clamping plates 676 move synchronously along sliding groove 670 to approach rotating shaft 80. Each clamping plate 676 pushes the corresponding moving bar 64 to move along moving groove 63 towards rotating shaft 80. The three moving bars 64 push clamping plates 65 to move through connecting rods. Each moving plate 65 drives clamping rollers 650 set on it to move until each clamping roller 650 is in close contact with the guide column to complete the centering clamping of the guide column, so that the axis of the guide column body is collinear with the axis of rotating shaft 80.

[0058] After the guide post is centered and clamped, the external motor drives the connecting plate 81 to rotate through the rotating shaft 80. The connecting plate 81 drives the clamping group 82 to rotate through the three connecting posts. The clamping group 82 drives the guide post to rotate. Then, the sliding plate 610 drives the milling equipment 62 set on it to continue to move downward until the milling equipment 62 performs milling processing on the guide post body. During the downward movement of the sliding plate 610, the spring 662 is continuously stretched and deformed until the milling equipment 62 completes the full circumference milling of the lubrication groove on the guide post.

[0059] As the sliding plate 610 moves downward, the sliding bar 61 drives the pulling rod 681 downward via the vertical bar 680. Through the interaction between the pulling rod 681 and the inclined surface of the rotating plate 685, the rotating plate 685 pushes the pulling rod 681 backward. This movement of the pulling rod 681 stretches and deforms the spring 683. After the pulling rod 681 moves to the underside of the rotating plate 685, the elastic force generated by the deformation of the spring 683 acts on the pulling rod 681 through the rectangular block 682. The rectangular block 682 pushes the pulling rod 681 forward until it is below the rotating plate 685, completing the movement. After the circumferential milling of the lubrication groove, the second external hydraulic cylinder moves the vertical bar 680 upward via the sliding bar 61. During the upward movement of the vertical bar 680, the pulling rod 681 pulls the rotating plate 685 upward, causing the rotating plate 685 to rotate around the rotating column. This causes the second spring 687 to be compressed and deformed. The rotating plate 685 moves the locking block 686 downward, and then the sliding block 50 moves to the right through the locking assembly 68. After passing through the locking assembly 68, the sliding block 50 continues to move to the left. The elastic force generated by the deformation of the second spring 687 pushes the rotating plate 685 and the locking block 686 to reset.

[0060] After completing one milling operation, the above-mentioned milling equipment 62 position locking, clamping roller 650 centering clamping, full circumferential milling and position unlocking are repeated until the milling of multiple lubrication grooves on the guide post is completed. The sliding block 50 moves to the leftmost end of the slide groove 4 and pushes the horizontal bar 691 to the left by the push bar 696. The horizontal bar 691 drives the trapezoidal block 692 set on it to move to the left. Through the cooperation between the inclined surface of each trapezoidal block 692 and the inclined surface of the corresponding locking block 694, the locking block 694 moves downward to prevent the sliding block 50 from moving to the right to reset.

[0061] Furthermore, the present invention also provides a machining method for a mold, comprising the following steps:

[0062] S1. Clamping guide post: The guide post that needs to be milled is placed between three clamping members 822. The three clamping members 822 are driven by the drive group 83 to clamp the guide post.

[0063] S2, Position Locking: After the external hydraulic cylinder pushes the sliding block 50 to move to the left along the slide groove 4 to the first working area, the sliding block 50 is positioned in a designated position by the cooperation between locking block 686 and locking block 694, thereby restricting the milling equipment 62 to be within the designated working area.

[0064] S3. Centering and clamping: The external hydraulic cylinder 2 drives the milling equipment 62 to move downward through the sliding plate 610. During the downward movement of the sliding plate 610, the downward movement of the sliding plate 610 drives the transmission group 66 to work. The transmission group 66 drives the clamping group 67 to work, causing multiple moving strips 64 to move towards the guide post. Each moving strip 64 drives the clamping roller 650 set on it to press tightly against the guide post, thereby completing the centering and clamping of the guide post.

[0065] S4. Milling the lubrication groove: When the external motor starts working, it drives the guide post to rotate synchronously through the clamping group 82. Then, the milling equipment 62 moves downward to perform milling work on the guide post, thereby performing full-circumference milling of the guide post.

[0066] S5, Leftward Unlock: External hydraulic cylinder 2 drives milling equipment 62 to move upward through sliding bar 61. The upward movement of sliding bar 61 drives pulling rod 681 to move upward, causing rotating plate 685 to rotate, thereby driving locking block 686 to move downward to unlock. Sliding block 50 moves to the next working area under the push of external hydraulic cylinder 1. After sliding block 50 moves to the next milling area, locking block 686 is reset under the push of elastic force generated by the deformation of spring 683.

[0067] S6, Rightward Unlock: The sliding block 50 moves to the leftmost end of the slide groove 2 4 and drives the horizontal bar 691 to move to the left through the push bar 696. The horizontal bar 691 drives the multiple trapezoidal blocks 692 set on it to move to the left and pushes the corresponding locking block 2 694 down into the locking groove 693, thus completing the leftward unlock of the sliding block 50.

[0068] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0069] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0071] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A machining apparatus for molds, characterized in that, include: The base plate (1) has a sliding groove (2) extending from left to right on the upper surface of the left section of the base plate (1). A support plate (3) is slidably arranged in the sliding groove (2) by an electric slider. The upper surface of the base plate (1) has a sliding groove (4) extending from left to right behind the sliding groove (2). A sliding block (50) is slidably arranged in the sliding groove (4). A moving plate (5) is fixedly arranged on the upper surface of the sliding block (50). A milling mechanism (6) is arranged between the moving plate (5) and the support plate (3). A fixed plate (7) is fixedly arranged on the upper surface of the base plate (1) on the right side of the sliding groove (2). A clamping unit (8) is arranged on the fixed plate (7). The clamping unit (8) includes a first rotating shaft (80), and the first rotating shaft (80) with an axis extending from left to right is rotatably passed through the fixed plate (7). A circular connecting plate (81) is fixedly provided on the left end face of the first rotating shaft (80), and the axis of the connecting plate (81) is collinear with the axis of the first rotating shaft (80). A clamping group (82) is provided on the left end face of the connecting plate (81) through three horizontal connecting columns. The milling mechanism (6) includes a slide groove three (60). The moving plate (5) has a slide groove three (60) extending from top to bottom. A sliding strip (61) is slidably arranged in the slide groove three (60). A sliding plate (610) is fixedly arranged on the front end face of the sliding strip (61). A milling device (62) is arranged on the lower end face of the front part of the sliding plate (610). The fixed plate (7) has three circumferentially evenly distributed moving slots (63). Each moving slot (63) 63) Each of the moving bars (64) is slidably arranged. On the left side of each moving bar (64) near the axis of the rotating shaft (80), an arc-shaped clamping plate (65) is fixedly arranged by a connecting rod. Each clamping plate (65) is rotatably arranged with clamping rollers (650) by two horizontal rotating rods. A pressing group (67) is arranged on the support plate (3). A transmission group (66) is arranged between the sliding plate (610) and the support plate (3).

2. The machining apparatus for molds according to claim 1, characterized in that: The clamping assembly (82) includes a clamping disk (820). The left end face of the connecting plate (81) is fixedly provided with the clamping disk (820) by a plurality of circumferentially evenly distributed and horizontally axial connecting columns. The clamping disk (820) has three circumferentially evenly distributed sliding grooves (821) that extend outward along the direction perpendicular to the axis of rotation (80). Each sliding groove (821) is slidably provided with a clamping member (822) by a moving block. The clamping member (822) is divided into two sections from left to right. The left section is inclined upward from left to right, and the right section is horizontal.

3. The machining apparatus for molds according to claim 2, characterized in that: A drive group (83) is provided on the right end face of the clamping disk (820). The drive group (83) includes a second rotating shaft (830). The right end face of the clamping disk (820) is rotatably provided with a second rotating shaft (830) whose axis is collinear with the axis of the first rotating shaft (80). Three rotating bars (831) are fixedly provided on the circumferential surface of the second rotating shaft (830). Each rotating bar (831) is hinged to a corresponding clamping member (822) with a connecting bar (832).

4. The machining apparatus for molds according to claim 1, characterized in that: A locking assembly (68) is provided between the sliding bar (61) and the base plate (1). The locking assembly (68) includes a vertical bar (680). The vertical bar (680) is fixedly provided on the right end face of the sliding bar (61). A pull rod (681) with its axis extending from front to back slides through the lower part of the vertical bar (680). A rectangular block (682) is fixedly provided on the rear end face of the pull rod (681). A spring (683) sleeved on the pull rod (681) is fixedly provided between the rectangular block (682) and the vertical bar (680). A plurality of placement slots (684) are provided between the inner walls of the base plate (1) and the sliding groove (4) and are distributed equidistantly from left to right. The placement groove (684) is divided into two sections from front to back. The rear section of the placement groove (684) is an inclined section located on the upper side and is an upward-inclined trapezoid from left to right. The front section of the placement groove (684) is an irregular fan shape. The inner wall of each placement groove (684) is provided with a rotating plate (685) through a rotating column. The rear end face of the rotating plate (685) is inclined forward from left to right. The upper end face of the front section of each rotating plate (685) is fixedly provided with a locking block (686). The locking block (686) is a trapezoid with the left side inclined downward from front to back. The lower end face of each rotating plate (685) is fixedly provided with a spring (687) together with the inner wall of the corresponding placement groove (684).

5. A machining apparatus for molds according to claim 1, characterized in that: A locking assembly 2 (69) is provided between the base plate (1) and the slide groove 2 (4). The locking assembly 2 (69) includes a slide groove 4 (690). The base plate (1) has a slide groove 4 (690) located behind the slide groove 2 (4). A horizontal bar (691) is slidably arranged in the slide groove 4 (690). Multiple trapezoidal blocks (692) are fixedly arranged on the lower end face of the horizontal bar (691) and are equidistantly distributed from left to right with their inclined surfaces on the left side. Multiple blocks are opened between the inner walls of the slide groove 2 (4) and the slide groove 4 (690) from left to right. The locking grooves (693) are evenly distributed to the right. Each locking groove (693) is slidably provided with a right-angled trapezoidal locking block (694). The inclined surface of the locking block (694) is inclined downward from left to right. The lower end face of each locking block (694) is fixedly provided with a spring (695) together with the inner wall of the corresponding locking groove (693). The front end face of the horizontal bar (691) is fixedly provided with two left-right symmetrically distributed push bars (696), and the push bars (696) are slidably provided in the slide groove (690).

6. A machining apparatus for molds according to claim 1, characterized in that: The clamping assembly (67) includes a second sliding groove (670). The support plate (3) has three circumferentially evenly distributed second sliding grooves (670). Each second sliding groove (670) has a transmission column (671) with its axis extending from left to right. The left end face of the support plate (3) is rotatably equipped with a transmission shaft (672) whose axis is collinear with the axis of the first rotating shaft (80). A rotating disk located on the left side of the support plate (3) is fixedly sleeved on the transmission shaft (672). (673) The circumferential surface of the rotating disk (673) is fixedly provided with three circumferentially evenly distributed arc-shaped plates (674). Each arc-shaped plate (674) is provided with a transmission groove (675) through it. The three transmission columns (671) are respectively located in the corresponding transmission groove (675). Each transmission column (671) is fixedly provided with a pressing plate (676) extending to the right on its right end face. Each pressing plate (676) is slidably connected to the corresponding moving bar (64).

7. A machining apparatus for molds according to claim 1, characterized in that: The transmission assembly (66) includes a lower pressure rod (660). The lower pressure rod (660), located on the front side of the milling machine (62) and with its axis extending from top to bottom, slides through the sliding plate (610). A lower pressure plate (661) is fixedly installed on the upper end face of the lower pressure rod (660). A spring (662) sleeved on the lower pressure rod (660) is fixedly installed between the lower pressure plate (661) and the sliding plate (610). The lower end of the lower pressure rod (660) A transmission rod (663) with its axis extending from left to right is fixedly installed on the surface by a connecting block. A transmission groove (664) extending from top to bottom and located to the left of the lower pressure rod (660) is provided on the support plate (3). A sliding groove (665) extending radially along the rotating disk (673) and extending from left to right is provided on the front part of the rotating disk (673). The transmission rod (663) is located in both the sliding groove (670) and the sliding groove (665).

8. A machining apparatus for molds according to claim 1, characterized in that: The left end face of the support plate (3) is rotatably provided with a rotating cylinder (30) whose axis is collinear with the axis of the rotating shaft (80), and the inner wall diameter of the rotating cylinder (30) is larger than the diameter of the guide post. The inner ring surface of the left section of the rotating cylinder (30) is fixedly provided with a pressing plate (300). The left end face of the moving plate (5) is fixedly provided with a push plate (70) through an L-shaped strip. All three moving strips (64) are slidably connected to the push plate (70).

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