A mold part machining clamping quick switching mechanism

Abstract

The application relates to the technical field of molds, and discloses a mold part machining clamping quick switching mechanism, which comprises a base mold, an upper pressing mold and a mold core. The mold core is installed on the base mold, blank is arranged on the mold core, the upper pressing mold is pressed downward, the blank is pressed on the mold core to form a pressed piece. The mold part machining clamping quick switching mechanism is designed as a split structure (mold core and tail seat mold), and is matched with a quick-change supporting piece. Only the mold core needs to be replaced to complete product model switching, bolts do not need to be disassembled or the mold core does not need to be lifted as a whole, the operation is simple, time and labor are saved, the downtime for changing the mold is significantly shortened, and the subsequent machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of mold technology, specifically to a quick switching mechanism for mold part processing and clamping. Background Technology

[0002] During the processing of mold parts, it is often necessary to replace the mold core to adapt to the molding requirements of products with different shapes and sizes. In the traditional way, the mold core is usually fixed to the base with fasteners such as bolts. When replacing it, the bolts must be removed one by one, the entire mold core must be lifted out, and then the new mold core must be reinstalled. The operation is cumbersome, time-consuming and labor-intensive, which seriously affects production efficiency.

[0003] In existing technologies, mold cores are mostly one-piece structures. Replacing the entire core not only increases the difficulty of operation but also raises the maintenance cost of the mold. During the replacement process, the lack of an effective quick-locking and support structure can easily lead to inaccurate mold core positioning, unstable installation, and even affect molding quality and mold life. Therefore, a quick-change mechanism for mold part processing and clamping is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a quick-change mechanism for mold part processing and clamping, which solves the problems of time-consuming, labor-intensive, and inefficient mold replacement processes in existing technologies.

[0006] Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a quick switching mechanism for clamping and processing mold parts, comprising a base mold; an upper pressure mold; and a mold core, wherein the mold core is mounted on the base mold, and a blank is disposed on the mold core; the upper pressure mold presses downward to press the blank onto the mold core to form a pressed sheet;

[0008] The mold core includes a tailstock mold, which is mounted on a base mold. A mold core is inserted into the tailstock mold. Quick-change support members are provided on the mold core and the tailstock mold. The quick-change support members are used to quickly replace and lock the mold core. The base mold has a through groove that runs vertically through the mold core for quick removal and replacement.

[0009] Preferably, the quick-change support includes a slide rod, a partition is slidably connected to the slide rod, the partition is connected to the tailstock mold, a socket is connected to the end face of the slide rod, a slot that mates with the socket is provided on the mold core, and a compression spring is sleeved on the slide rod, the compression spring being located between the socket and the partition.

[0010] Preferably, the surface of the socket is provided with an inclined groove, the upper surface of the socket is provided with a sliding piece, and the lower surface of the mold core is connected with a plug.

[0011] Preferably, the tailstock mold has a through-hole, the insert strip is adapted to the insert, the socket is located inside the insert, and the mold core is inserted into the tailstock mold through a dovetail groove.

[0012] Preferably, the quick-change support further includes a support plate, which is located below the mold core and abuts against the lower surface of the mold core, and the support plate is mounted on the base mold.

[0013] Preferably, the base mold has an inclined sliding groove, the bottom of the support plate has a sliding key, the sliding key slides on the inclined sliding groove, the support plate is located above the through groove, and the support plate slides obliquely when the mold core is replaced, thereby releasing the abutment support of the mold core.

[0014] Preferably, a rotating shaft is connected to the base mold, a contact rod is connected to the rotating shaft, an elongated groove is formed on the contact rod, a sliding pin is slidably connected in the elongated groove, a pull plate is connected to the sliding pin, the pull plate is slidably connected inside the base mold, and one end of the pull plate is connected to a support plate.

[0015] Preferably, the contact rod is inclined, and one section of the contact rod is a vertical plane, and the vertical plane section is slidably connected to the side of the upper mold. The pull plate is slidably connected to the support plate through a T-slot.

[0016] Preferably, the base mold has a step, the support plate is located on the step on the base mold, and a support spring is connected to one side of the pull plate, the support spring being located inside the base mold.

[0017] Beneficial effects

[0018] Compared with the prior art, the present invention provides a quick switching mechanism for clamping and machining mold parts, which has the following advantages:

[0019] 1. The quick-change mechanism for mold parts processing and clamping, by designing the mold core as a split structure (mold core and tail mold) and with quick-change support components, only the mold core needs to be replaced to complete the product model change, without the need to remove bolts or lift out the mold core as a whole. The operation is simple, time-saving and labor-saving, significantly shortening the downtime for mold changing and improving the efficiency of subsequent processing.

[0020] 2. The quick-change mechanism for mold part processing and clamping utilizes the inclined surface cooperation structure of components such as sockets, compression springs, and inserts to achieve automatic locking when the mold core is inserted and automatic unlocking when it is ejected, avoiding manual alignment and locking operations. Furthermore, in conjunction with the upward stroke of the pressure mold triggering the rotation of the contact rod, it drives the support plate to automatically slide obliquely, realizing the linkage control of support release and mold core separation. The structure is compact and the operation is reliable.

[0021] 3. The quick-change mechanism for machining and clamping mold parts, by setting up a support plate that can slide at an angle, is located below the mold core during normal pressing, effectively transmitting the downward pressure of the upper mold to the base mold, avoiding damage or breakage of the mold core due to being suspended below, and enhancing the overall rigidity and stability; when changing, the support plate automatically retracts to ensure the smooth descent of the mold core, taking into account both safety and durability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a quick-change mechanism for machining and clamping mold parts proposed in this invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of a quick-change mechanism for machining and clamping mold parts proposed in this invention;

[0024] Figure 3 This is a schematic diagram of the pressing structure of a quick-change mechanism for clamping and machining mold parts proposed in this invention;

[0025] Figure 4 This is a schematic diagram of the quick-change support component of a quick-change mechanism for machining and clamping mold parts proposed in this invention.

[0026] Figure 5 This is a schematic diagram of the mold core connection structure of a quick-change mechanism for mold part processing and clamping proposed in this invention;

[0027] Figure 6 This is a schematic diagram of the contact rod connection structure of a quick switching mechanism for machining and clamping mold parts proposed in this invention;

[0028] Figure 7 This is a schematic diagram of the support plate connection structure of a quick switching mechanism for machining and clamping mold parts proposed in this invention.

[0029] In the diagram: 1. Base mold; 2. Upper pressure mold; 3. Mold core; 31. Mold core; 32. Tailstock mold; 4. Quick-change support component; 41. Socket; 42. Slide rod; 43. Compression spring; 44. Socket; 45. Insert strip; 46. Contact rod; 47. Rotating shaft rod; 48. Support spring; 49. Sliding pin; 50. Support plate; 51. Pull plate; 52. Angled slide groove; 5. Pressure plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-7 A quick-change mechanism for clamping and processing mold parts includes a base mold 1; an upper pressure mold 2; and a mold core 3. The mold core 3 is installed on the base mold 1 and a blank is provided on the mold core 3. The upper pressure mold 2 presses down to press the blank onto the mold core 3 to form a pressing sheet 5.

[0032] In this embodiment, the mold core 3 includes a tailstock mold 32, which is mounted on the base mold 1. A mold core 31 is inserted into the tailstock mold 32. Quick-change support members 4 are provided on the mold core 31 and the tailstock mold 32. The quick-change support members 4 are used for quick replacement and locking of the mold core 31. The base mold 1 has a through groove running vertically through it for quick removal and replacement of the mold core 31. The tailstock mold 32 is fixedly mounted on the base mold 1 as the supporting base of the mold core 3. The mold core 31 is detachably mounted on the tailstock mold 32 by insertion. The contour shape of the upper surface of the mold core 31 determines the final forming shape and size of the pressed sheet 5. The base mold 1 has a through groove running vertically through it. The position of the through groove corresponds to the installation area of ​​the mold core 31. After the mold core 31 is unlocked, the old mold core 31 can fall directly out of the through groove under the pressure of gravity or the new mold core 31, completing quick removal without manual removal from above, thereby simplifying the replacement operation and shortening downtime.

[0033] Furthermore, the quick-change support component 4 includes a slide rod 42, on which a partition plate is slidably connected. The partition plate is connected to the tailstock mold 32. A socket 44 is connected to the end face of the slide rod 42. A slot that mates with the socket 44 is provided on the mold core 31. A compression spring 43 is sleeved on the slide rod 42, located between the socket 44 and the partition plate. The surface of the socket 44 is provided with a slanted groove, and a sliding piece is provided on the upper surface of the socket 44. An insert 45 is connected to the lower surface of the mold core 31. The slide rod 42 serves as a guide and load-bearing base, on which the partition plate is slidably fitted. The partition plate is fixedly connected to the tailstock mold 32, providing stable support and limiting for the sliding of the slide rod 42. A socket 44 is fixedly connected to one end face of the slide rod 42. The socket 44 is used to form a separable insertion fit with the mold core 31. A slot that matches the shape of the socket 44 is provided at the corresponding position on the mold core 31. A compression spring 43 is also fitted onto the slide rod 42. This compression spring 43 is axially confined between the socket 44 and the partition plate, consistently providing the socket 44 with an elastic thrust towards the mold core 31. This ensures that the socket 44 remains tightly locked to the mold core 31 slot under normal conditions, preventing the mold core 31 from loosening during processing. To achieve automatic guidance and locking when the mold core 31 is inserted, the surface of the socket 44 is provided with a sloping groove structure, and the upper surface of the socket 44 is also provided with a sliding plate. Correspondingly, an insert 45 is connected to the lower surface of the mold core 31, and the insert 45 forms a sliding guide engagement with the sloping groove and sliding plate on the socket 44. When the mold core 31 is inserted into the tailstock mold 32 from top to bottom, the insert 45 first contacts the slide plate and slides along the inclined surface of the groove. Through the squeezing action of the inclined surface, the socket 44 is pushed to move laterally away from the mold core 31, overcoming the elastic force of the compression spring 43, making way for the downward movement of the mold core 31. When the mold core 31 moves down to the position where the slot and the socket 44 are aligned, the compression spring 43 releases its elastic force, pushing the socket 44 to automatically engage in the slot, thus achieving axial locking of the mold core 31. Conversely, when it is necessary to disassemble the mold core 31, the external force pushes the socket 44 to retract the compression spring 43, which can disengage the socket 44 from the slot, releasing the locking restriction on the mold core 31, making it easy for the mold core 31 to be pulled out or dropped from the tailstock mold 32.

[0034] Furthermore, the tailstock mold 32 has a through-hole 41. A strip 45 fits into the 41, and a socket 44 is located inside the 41. The mold core 31 is inserted into the tailstock mold 32 via a dovetail groove. The 41 provides a vertical insertion and removal channel for the mold core 31. The strip 45 connected to the lower surface of the mold core 31 is adapted to the shape and size of the 41. When the mold core 31 is installed, the strip 45 is inserted into the 41 from top to bottom, achieving vertical guidance and initial positioning of the mold core 31. During the insertion of the strip 45 into the 41, the strip 45 forms a sliding fit with the slider and inclined groove on the socket 44. Through the inclined surface, the socket 44 is driven to laterally move or reset within the 41, thereby achieving automatic locking and unlocking of the mold core 31. The mold core 31 is provided with dovetail-shaped convex rails on both sides or at the bottom, and the tail mold 32 has corresponding dovetail-shaped guide grooves. During the insertion of the mold core 31 from top to bottom, the dovetail-shaped convex rails slide along the dovetail-shaped guide grooves, thereby achieving precise horizontal positioning of the mold core 31 and preventing horizontal movement of the mold core 31 during the pressing process. Through the vertical guidance of the insert 45 and the socket 41, the lateral positioning of the dovetail groove, and the axial locking of the socket 44, the installation position of the mold core 31 on the tail mold 32 is ensured to be accurate and reliable, while still maintaining the convenience of quick replacement.

[0035] In addition, the quick-change support component 4 also includes a support plate 50, which is located below the mold core 31 and abuts against the lower surface of the mold core 31. The support plate 50 is mounted on the base mold 1. The base mold 1 has an inclined sliding groove 52. The bottom of the support plate 50 is provided with a sliding key, which slides on the inclined sliding groove 52. The support plate 50 is located above the through groove. When the mold core 31 is replaced, the support plate 50 slides obliquely, releasing the abutment support on the mold core 31. Under normal pressing conditions, the support plate 50 provides upward support to the mold core 31. When the upper mold 2 applies downward pressure to the mold core 31, the support plate 50 effectively transfers the downward pressure to the base mold 1, preventing the mold core 31 from deforming, breaking, or being damaged under impact load due to being suspended below, thereby ensuring the working stability and service life of the mold core 31. The base mold 1 has an inclined sliding groove 52. The bottom of the support plate 50 is fixedly provided with a sliding key that matches the inclined sliding groove 52. The sliding key slides within the inclined sliding groove 52, allowing the support plate 50 to slide obliquely along the guiding direction of the inclined sliding groove 52 when subjected to a lateral driving force. The support plate 50 is located directly above the through groove on the base mold 1. In the normal working position, the support plate 50 spans across the through groove, forming a closed support for the mold core 31. When the mold core 31 needs to be replaced, the support plate 50 slides obliquely along the inclined sliding groove 52, shifting obliquely from its working position to one side of the through groove, thereby completely freeing up the vertical space below the mold core 31, allowing the mold core 31 to smoothly pass down through the through groove and detach from the base mold 1. By using the sliding method of the inclined slide groove 52 in conjunction with the sliding key, under the same lateral driving force and driving stroke conditions, the inclined sliding can make the edge of the support plate 50 move away from the projection area below the mold core 31 more quickly with a smaller lateral displacement. That is, by utilizing the synergistic effect of the horizontal and vertical components of the inclined motion, the support plate 50 can be completely removed from directly below the mold core 31 with a more compact stroke, thereby shortening the response time and motion stroke of the support plate 50, making the overall structure more compact and the action more sensitive and reliable.

[0036] In addition, a rotating shaft 47 is connected to the base mold 1, and a contact rod 46 is connected to the rotating shaft 47. A long groove is formed on the contact rod 46, and a sliding pin 49 is slidably connected within the long groove. A pull plate 51 is connected to the sliding pin 49 and is slidably connected inside the base mold 1. One end of the pull plate 51 is connected to the support plate 50. The sliding direction of the pull plate 51 is horizontal. One end of the pull plate 51 is fixedly or linkedly connected to the support plate 50, so that the horizontal sliding of the pull plate 51 can synchronously drive the support plate 50 to slide obliquely. When the contact rod 46 rotates and swings around the rotating shaft 47, the long groove rotates synchronously with the contact rod 46. Because the sliding pin 49 is simultaneously constrained by the horizontal sliding of the pull plate 51, the sliding pin 49 slides relative to the long groove, converting the rotational motion of the contact rod 46 into the horizontal linear reciprocating motion of the pull plate 51. When the contact rod 46 rotates in the forward direction, it pushes the sliding pin 49 to move laterally through the groove wall of the long groove. The sliding pin 49 drives the pull plate 51 to slide laterally to one side along the inside of the base mold 1 against the elastic force of the support spring 48. The pull plate 51 then pulls the support plate 50 to slide obliquely along the inclined slide groove 52, so that the support plate 50 is removed from under the mold core 31. When the contact rod 46 rotates in the reverse direction, the elastic force of the support spring 48 pushes the pull plate 51 to slide laterally in the opposite direction. The pull plate 51 drives the contact rod 46 to reset and rotate through the sliding pin 49, and at the same time pushes the support plate 50 back obliquely to directly under the mold core 31, restoring the abutment support state.

[0037] It is worth noting that the contact rod 46 is inclined, and one section of its surface is a vertical plane, which is slidably connected to the side of the upper mold 2. The pull plate 51 is slidably connected to the support plate 50 through a T-slot. A step is provided on the base mold 1, and the support plate 50 is located on the step on the base mold 1. A support spring 48 is connected to one side of the pull plate 51, and the support spring 48 is located inside the base mold 1. When the upper mold 2 reciprocates within its normal stroke range, the side of the upper mold 2 always maintains sliding contact with the vertical plane section of the contact rod 46. Since the vertical plane section is parallel to the direction of movement of the upper mold 2, the contact rod 46 will not be subjected to a horizontal component force during this stage and will not rotate or swing around the pivot rod 47, thus ensuring that the support position of the support plate 50 remains stable during normal pressing. Only when the upper die 2 moves upward to its limit position, i.e., the lifting height when replacing the die core 31, will the side of the upper die 2 cross the vertical plane section and contact the inclined surface of the contact rod 46. Through the inclined surface pressing action, the contact rod 46 is pushed to rotate and swing outward around the rotating shaft 47, thereby triggering the subsequent retraction action of the support plate 50. By setting the vertical plane section, differentiated driving of the contact rod 46 is achieved in the two states of normal pressing and die core replacement, which not only ensures the stability of the support plate 50 during normal operation, but also realizes the automatic linkage retraction of the support plate 50 during replacement. One end of the pull plate 51 is provided with a T-shaped convex rail, and the corresponding position of the support plate 50 is provided with a matching T-shaped guide groove. The T-shaped convex rail slides and engages in the T-shaped guide groove. Through the matching structure of the T-shaped groove, the pull plate 51 can drive the support plate 50 to move synchronously laterally when sliding laterally. At the same time, when the support plate 50 slides obliquely along the inclined slide groove 52, the T-shaped groove can compensate for the relative displacement between the pull plate 51 and the support plate 50 caused by the different directions of movement. This avoids motion interference between the two, ensuring smooth and reliable power transmission. The step provides a certain amount of space and movement limit for the support plate 50, allowing the support plate 50 to have a stable movement trajectory during oblique sliding. The support spring 48 is located inside the base mold 1, with one end abutting or fixedly connected to the pull plate 51, and the other end abutting against the inner wall of the base mold 1. The support spring 48 always provides the pull plate 51 with an elastic thrust toward the support plate 50, and the direction of this thrust is opposite to the direction in which the contact rod 46 triggers the pull plate 51 to move. Under normal pressing conditions, the elastic force of the support spring 48 is transmitted to the support plate 50 through the pull plate 51 and the T-slot, keeping the support plate 50 in the working position of abutting against the mold core 31. When the upper mold 2 moves upward to the limit position and triggers the contact rod 46 to rotate, the contact rod 46 drives the pull plate 51 to move laterally against the elastic force of the support spring 48 through the sliding pin 49, thereby causing the support plate 50 to move obliquely away. When the upper mold 2 moves downward away from the limit position, the driving force of the contact rod 46 on the pull plate 51 disappears, the support spring 48 releases its elastic force, and automatically pushes the pull plate 51 and the support plate 50 back to the supporting working position, realizing the automatic reset function of the support plate 50.By placing the support spring 48 inside the base mold 1, external space is saved and the spring is effectively protected, preventing external debris from interfering with the normal operation of the spring.

[0038] The working principle is as follows: When the mold is in use, the upper die 2 continuously presses down to stamp the blank located on the die core 3 to form the final product, which is the structural shape of the pressing plate 5. However, the product structure shape and size of the pressing plate 5 are of various types, so the die core 3 needs to be switched. The traditional method uses bolt connection for fixation, so replacement requires removing the bolts and lifting the die core 3 as a whole, and then reinstalling the new die core 3 by screwing it on, which is time-consuming and labor-intensive.Therefore, this design uses a two-part structure for the mold core 3, consisting of the tail mold 32 and the mold core 31. Only the mold core 31 needs to be replaced during replacement. Since the upper mold 2 is a pressing mold, the shape and tilt angle of the formed sheet 5 depend on the shape of the mold core 31. Therefore, the operator can raise the upper mold 2 to its limit position. During this upward movement, the upper mold 2 will slide against the end face of the contact rod 46. Normal pressing and molding occurs on the vertical plane of the contact rod 46. Therefore, during normal pressing and molding, the contact rod 46 will not rotate. Only when the upper mold 2 moves to its limit position and contacts the end face of the contact rod 46, causing rotation, will the contact rod 46 rotate. When the connecting shaft of the rotating shaft 47 rotates, it will drive the internal sliding pin 49 to slide laterally. The sliding pin 49 will then simultaneously drive the pull plate 51 to pull laterally, applying a lateral pulling force to the pull plate 51. Afterwards, when the support plate 50 moves laterally, because it slides at an angle with the inclined slide groove 52, the support plate 50 slides at an angle and disengages from under the mold core 31. Because the mold core 31 has a T-shaped structure, a simple lateral sliding of the support plate 50 would result in a large sliding stroke, causing it to disengage from under the mold core 31. Therefore, this solution adopts an inclined sliding method, utilizing a short-stroke automatic displacement to disengage from the support of the mold core 31. The function of the support plate 50 is to press and form the entire mold, and to support the mold core 31. Otherwise, the upper pressing mold 2 would directly act on the mold core 31, easily causing damage and breakage to the unsupported mold core 31. The support plate 50 provides indirect support, indirectly transmitting the downward pressure of the upper pressing mold 2 to the base mold 1. Therefore, when the upper pressing mold 2 moves to its limit position, the entire support plate 50 will automatically shift obliquely away from below the mold core 31, clearing the space below the mold core 31. The new mold core 31 then overlaps with the old mold core 31 from top to bottom. Simultaneously, the insert 45 on the new mold core 31 needs to connect with the sliding piece. Using an oblique sliding method, the socket 44 is controlled to move backward, thereby controlling the socket 44 to disengage from the mating slot of the old mold core 31, releasing the axial lock. Then, the new mold core 31 is slid downwards according to the matching dovetail groove to achieve insertion, until the slot on the new mold core 31 and the socket 44 are inserted. During the disengagement of the socket 44 from the old mold core 31, the socket 44 will slide laterally, compressing the compression spring 43. Therefore, under the compression of the compression spring 43, the socket 44 will always provide elastic compressive force. So when the slot of the mold core 31 and the end of the socket 44 are engaged, they will automatically lock into place, locking the mold core 31. The old mold core 31 will be squeezed from top to bottom by the new mold core 31 and fall into the space below the base mold 1. The base mold 1 is provided with an inclined slide, so the old mold core 31 will slide out from the inclined surface of the slide. Then, the upper pressing mold 2 is pressed down. At this time, the lateral thrust generated by the support spring 48 will push the pull plate 51 to move laterally, and the support plate 50 will slide obliquely to the bottom of the new mold core 31 to form abutment support.Therefore, the entire process does not require bolts or lifting the mold. It only requires moving the new mold core 31 on top of the old mold core 31 for stacking, and then using the "bullet-pressing" structural principle to reinstall the new mold. This simplifies the entire mold installation process, saves time and effort, and indirectly improves subsequent processing efficiency.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A quick-change mechanism for clamping and machining mold parts, characterized in that, include: Base mold (1); Upper mold (2); Mold core (3), the mold core (3) is installed on the base mold (1), the mold core (3) is provided with blank, the upper pressure mold (2) presses down to press the blank onto the mold core (3) to form a sheet (5). The mold core (3) includes a tailstock mold (32), which is mounted on the base mold (1). A mold core (31) is inserted into the tailstock mold (32). A quick-change support (4) is provided on the mold core (31) and the tailstock mold (32). The quick-change support (4) is used to quickly replace and lock the mold core (31). The base mold (1) has a through groove that runs vertically through the mold core (31) for quick replacement.

2. The quick-change mechanism for clamping and machining mold parts according to claim 1, characterized in that: The quick-change support (4) includes a slide rod (42), a partition is slidably connected to the slide rod (42), the partition is connected to the tail mold (32), a socket (44) is connected to the end face of the slide rod (42), a slot that mates with the socket (44) is provided on the mold core (31), and a compression spring (43) is sleeved on the slide rod (42), the compression spring (43) is located between the socket (44) and the partition.

3. The quick-change mechanism for clamping and machining mold parts according to claim 2, characterized in that: The surface of the socket (44) is provided with a slanted groove, the upper surface of the socket (44) is provided with a sliding piece, and the lower surface of the mold core (31) is connected with a plug (45).

4. The quick-change mechanism for clamping and machining mold parts according to claim 3, characterized in that: The tailstock mold (32) has a through-hole (41) on its upper and lower sides. The insert (45) is adapted to the insert (41). The socket (44) is located inside the insert (41). The mold core (31) is inserted into the tailstock mold (32) through a dovetail groove.

5. The quick-change mechanism for clamping and machining mold parts according to claim 4, characterized in that: The quick-change support (4) also includes a support plate (50), which is located below the mold core (31) and abuts against the lower surface of the mold core (31). The support plate (50) is mounted on the base mold (1).

6. The quick-change mechanism for clamping and machining mold parts according to claim 5, characterized in that: The base mold (1) is provided with an inclined sliding groove (52), and the bottom of the support plate (50) is provided with a sliding key. The sliding key slides on the inclined sliding groove (52). The support plate (50) is located above the through groove. The support plate (50) slides obliquely when the mold core (31) is replaced, and releases the abutment support of the mold core (31).

7. The quick-change mechanism for clamping and machining mold parts according to claim 6, characterized in that: A rotating shaft (47) is connected to the base mold (1), and a contact rod (46) is connected to the rotating shaft (47). A long groove is provided on the contact rod (46), and a sliding pin (49) is slidably connected in the long groove. A pull plate (51) is connected to the sliding pin (49), and the pull plate (51) is slidably connected inside the base mold (1). One end of the pull plate (51) is connected to the support plate (50).

8. The quick-change mechanism for clamping and machining mold parts according to claim 7, characterized in that: The contact rod (46) is inclined, and a section of the surface of the contact rod (46) is a vertical plane, and the vertical plane section is slidably connected to the side of the upper mold (2). The pull plate (51) is slidably connected to the support plate (50) through the T-slot.

9. A quick-change mechanism for clamping and machining mold parts according to claim 8, characterized in that: The base mold (1) has a step, the support plate (50) is located on the step on the base mold (1), and a support spring (48) is connected to one side of the pull plate (51), the support spring (48) is located inside the base mold (1).

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