Quick replacement device for automobile precision die
By designing a quick-change device for automotive precision molds with a material receiving and adjustment mechanism, the device enables simultaneous replacement of upper and lower molds, solving the problem of long mold changeover time in existing technologies and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-13
AI Technical Summary
The current process of replacing precision automotive molds involves multiple steps, resulting in long processing times, increased equipment downtime, and reduced production efficiency.
A quick-change device for automotive precision molds, including a receiving mechanism and an adjustment mechanism, was designed. It enables simultaneous replacement of upper and lower molds through clamping plates and vacuum nozzles, and uses motors and hydraulic rods for precise positioning and fixation.
This allows for simultaneous replacement of upper and lower molds, reducing the time required for separate operations, improving mold replacement efficiency, and minimizing equipment downtime.
Smart Images

Figure CN223988971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive precision molds, and in particular to a quick change device for automotive precision molds. Background Technology
[0002] Precision automotive molds are key tools used in the manufacture of automotive parts, characterized by high precision, high complexity, high strength, and long lifespan. Their precision can reach the micrometer level, enabling the production of parts with accurate dimensions, complex shapes, and excellent surface quality, meeting stringent design and assembly requirements.
[0003] Existing magnetically secured automotive precision molds refer to high-precision molds that utilize magnetic attraction to fix their various parts together during the automotive parts manufacturing process. These molds typically consist of an upper mold and a lower mold, with magnetic attraction devices installed in the mold's mounting base or related components. When the mold needs to be closed, power is applied to the magnetic attraction device, generating a magnetic field that firmly attaches the mold body to the mounting base, thus securing the mold. When it's necessary to open or replace the mold, the magnetic attraction can be released by disconnecting the power, facilitating related operations. Magnetic fixation offers advantages such as precise positioning, reliable fixation, and convenient operation, effectively improving the stability and production efficiency of automotive precision molds during use, while also helping to ensure the machining accuracy and quality of automotive parts.
[0004] In existing automotive precision mold replacement technology, the traditional mold replacement method usually adopts a step-by-step operation, first processing the upper mold body and then processing the lower mold body. This method results in a long replacement process and increased equipment downtime, which seriously affects the production efficiency of automotive parts. To address this issue, a rapid replacement device for automotive precision molds is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a quick change device for automotive precision molds, which aims to solve the problems of long time and prolonged equipment downtime caused by the step-by-step operation of mold change in the prior art.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a quick-change device for automotive precision molds, comprising a support base, a receiving mechanism and an adjustment mechanism on the support base, the receiving mechanism comprising a translation block, the bottom end of the translation block being slidably connected to the top of the support base, a rack being fixedly connected to the outer wall of the translation block, a threaded rod being rotatably connected to the inner wall of the translation block, a lifting block being threadedly connected to the outer wall of the threaded rod, a support block being fixedly connected to the side wall of the lifting block, a bidirectional screw being rotatably connected to the top of the support block, a gear being fixedly connected to the outer wall of the bidirectional screw, the outer wall of the gear meshing with the outer wall of the rack, a clamping plate being threadedly connected to the outer wall of the bidirectional screw, a support frame being fixedly connected to the top of the support base, a fixed seat being fixedly connected to the support frame, and a mold body being inserted into the inner wall of the fixed seat.
[0007] As a further description of the above technical solution:
[0008] The receiving mechanism also includes a limiting rod, with both ends of the limiting rod fixedly connected to the top of the support block, and the other end of the clamping plate slidably connected to the outer wall of the limiting rod.
[0009] As a further description of the above technical solution:
[0010] The receiving mechanism also includes a motor, the bottom of which is fixedly connected to the top of the translation block, and the output end of the motor is fixedly connected to the top of the threaded rod.
[0011] As a further description of the above technical solution:
[0012] The receiving mechanism also includes a second motor, the outer wall of which is fixedly connected to the top of the support base.
[0013] As a further description of the above technical solution:
[0014] The receiving mechanism also includes a lead screw, one end of which is rotatably connected to the top of the support base, and the other end of which is fixedly connected to the output end of the motor.
[0015] As a further description of the above technical solution:
[0016] The receiving mechanism also includes a lead screw slider, the inner wall of which is threaded to the outer wall of the lead screw, the side wall of which is slidably connected to the top of the support base, and the top of the lead screw slider is fixedly connected to the bottom of the translation block.
[0017] As a further description of the above technical solution:
[0018] The adjustment mechanism includes a support plate, the side wall of which is slidably connected to the inner wall of the bottom of the translation block, and a vacuum generator is fixedly connected to the top of the support plate.
[0019] As a further description of the above technical solution:
[0020] The adjustment mechanism also includes a vacuum nozzle, the outer wall of which is fixedly connected to the inner wall of the bottom of the support plate.
[0021] As a further description of the above technical solution:
[0022] The adjustment mechanism also includes a hydraulic rod, the top of which is fixedly connected to the inner wall of the support block.
[0023] As a further description of the above technical solution:
[0024] The bottom end of the inner rod of the hydraulic rod is fixedly connected to the top of the support plate.
[0025] This utility model has the following beneficial effects:
[0026] 1. In this utility model, by setting up a receiving mechanism, after receiving the upper mold body, the clamping plate automatically clamps and fixes the upper mold body at the appropriate time, ensuring that the mold will not fall accidentally during the transfer process. It can also cooperate with the adjustment mechanism to perform suction and discharge operation on the lower mold body, realizing the simultaneous replacement of the upper and lower mold bodies and reducing the time consumption of step-by-step operation.
[0027] 2. In this utility model, by setting an adjustment mechanism, the position of the vacuum nozzle can be flexibly adjusted according to the actual depth. For any mold body with a cavity depth, the vacuum nozzle can accurately fit with the lower mold body, which greatly enhances the device's adaptability to molds of different specifications. Attached Figure Description
[0028] Figure 1 This is a front view structural diagram of a quick-change device for automotive precision molds proposed in this utility model;
[0029] Figure 2 This is a schematic diagram of the translation block and support block structure of a quick-change device for automotive precision molds proposed in this utility model;
[0030] Figure 3 This is a schematic diagram of the top structure of the support block of a quick-change device for automotive precision molds proposed in this utility model;
[0031] Figure 4 This is a schematic diagram of the cross-sectional structure of the support block of a quick-change device for automotive precision molds proposed in this utility model;
[0032] Figure 5 This is a schematic diagram of the translation block structure of a quick-change device for automotive precision molds proposed in this utility model;
[0033] Figure 6This is a schematic diagram of the mold body structure of a quick-change device for precision automotive molds proposed in this utility model.
[0034] Legend:
[0035] 1. Support base; 2. Material receiving mechanism; 211. Translation block; 212. Rack; 213. Threaded rod; 214. Lifting block; 215. Support block; 216. Bidirectional screw; 217. Gear; 218. Clamping plate; 219. Limiting rod; 220. Motor 1; 221. Motor 2; 222. Lead screw; 223. Lead screw slider; 3. Adjustment mechanism; 311. Support plate; 312. Vacuum generator; 313. Vacuum nozzle; 314. Hydraulic rod; 4. Support frame; 5. Fixed base; 6. Mold body. Detailed Implementation
[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0037] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a quick-change device for automotive precision molds, comprising a support base 1. The support base 1 serves as the basic load-bearing component of the entire device, providing stable support for other mechanisms. A receiving mechanism 2 and an adjusting mechanism 3 are provided on the support base 1. The receiving mechanism 2 is used to receive and transfer the mold body 6, and the adjusting mechanism 3 is used to adjust the adsorption operation on the mold body 6. The receiving mechanism 2 includes a translation block 211, which can slide on the top of the support base 1 to adjust its position. The bottom end of the translation block 211 is slidably connected to the top of the support base 1. A rack 212 is fixedly connected to the outer wall of the translation block 211, providing a transmission track for a gear 217. A screw is rotatably connected to the inner wall of the translation block 211. The threaded rod 213 rotates to drive the lifting block 214 to rise and fall. The lifting block 214 is threadedly connected to the outer wall of the threaded rod 213. The lifting block 214 can move up and down along the threaded rod 213. The support block 215 is fixedly connected to the side wall of the lifting block 214. The top of the support block 215 is rotatably connected to the bidirectional screw 216. The rotation of the bidirectional screw 216 can cause the clamping plate 218 to move in opposite directions or away from each other. The gear 217 is fixedly connected to the outer wall of the bidirectional screw 216. The gear 217 cooperates with the rack 212 to realize the rotation of the bidirectional screw 216. The outer wall of the gear 217 meshes with the outer wall of the rack 212. One end of the clamping plate 218 is threadedly connected to the outer wall of the bidirectional screw 216. The clamping plate 218 is used to clamp and fix the mold body 6.
[0038] Reference Figure 4 - Figure 6 The receiving mechanism 2 also includes a limiting rod 219, which limits and guides the movement of the clamping plate 218. Both ends of the limiting rod 219 are fixedly connected to the top of the support block 215, and the other end of the clamping plate 218 is slidably connected to the outer wall of the limiting rod 219. The receiving mechanism 2 also includes a first motor 220, which provides power for the rotation of the threaded rod 213. The bottom of the first motor 220 is fixedly connected to the top of the translation block 211, and the output end of the first motor 220 is fixedly connected to the top of the threaded rod 213. The receiving mechanism 2 also includes a second motor 221, which provides power for the rotation of the lead screw 222. The outer wall of 221 is fixedly connected to the top of the support base 1. The receiving mechanism 2 also includes a lead screw 222. The rotation of the lead screw 222 drives the lead screw slider 223 to move. One end of the lead screw 222 is rotatably connected to the top of the support base 1, and the other end of the lead screw 222 is fixedly connected to the output end of the motor 221. The receiving mechanism 2 also includes a lead screw slider 223. The lead screw slider 223 moves on the lead screw 222 and drives the translation block 211 to move. The inner wall of the lead screw slider 223 is threadedly connected to the outer wall of the lead screw 222. The side wall of the lead screw slider 223 is slidably connected to the top of the support base 1. The top of the lead screw slider 223 is fixedly connected to the bottom of the translation block 211.
[0039] Reference Figure 4 The adjustment mechanism 3 includes a support plate 311, which provides mounting support for the vacuum generator 312 and the vacuum nozzle 313. The side wall of the support plate 311 is slidably connected to the bottom inner wall of the translation block 211. The vacuum generator 312 is fixedly connected to the top of the support plate 311, and the vacuum generator 312 provides adsorption power for the vacuum nozzle 313. The adjustment mechanism 3 also includes a vacuum nozzle 313, which is used to adsorb the mold body 6. The outer wall of the vacuum nozzle 313 is fixedly connected to the bottom inner wall of the support plate 311. The adjustment mechanism 3 also includes a hydraulic rod 314. The hydraulic rod 314 is used to adjust the height of the support plate 311 and the vacuum nozzle 313. The top of the hydraulic rod 314 is fixedly connected to the inner wall of the support block 215. The bottom of the inner rod of the hydraulic rod 314 is fixedly connected to the top of the support plate 311. The top of the support base 1 is fixedly connected to the support frame 4, which provides support for the fixed seat 5. The fixed seat 5 is fixedly connected to the support frame 4. The mold body 6 is inserted into the inner wall of the fixed seat 5. A magnetic suction device is fixedly installed inside the fixed seat 5. The magnetic suction device is used to attract and fix the mold body 6. The mold body 6 is magnetically connected to the inner wall of the fixed seat 5.
[0040] Working principle: When it is necessary to replace the mold body 6, the upper fixed seat 5 is driven by an external hydraulic device to separate the upper mold body 6 from the lower mold body 6. By starting the motor 221, the output end of the motor 221 drives the fixedly connected lead screw 222 to rotate, thereby driving the lead screw slider 223 threaded on the outer wall of the lead screw 222 to rotate. The lead screw slider 223 drives the top fixedly connected translation block 211 to move. The translation block 211 will drive the support block 215 to move between the two mold bodies 6.
[0041] By starting motor 220, the output of motor 220 drives the fixedly connected threaded rod 213 to rotate, causing the lifting block 214 threaded to the outer wall of the threaded rod 213 to rise and fall. The lifting block 214 then moves the support block 215 upwards, bringing it into contact with the bottom of the upper mold body 6. The magnetic attraction devices inside the two fixed seats 5 are de-energized, ceasing to hold the two mold bodies 6 in place. Then, motor 220 reverses, causing the support block 215 to descend. Because the mold body 6 has a certain weight, the upper mold body 6, no longer in a magnetic attraction state, descends along with the support block 215 under the influence of gravity. When the support block 215 descends, the gear 217 rolls on the outer wall of the rack 212, causing the bidirectional screw 216, which is fixedly connected to the inner wall of the gear 217, to rotate. Under the limiting action of the limiting rod 219, the clamping plate 218, which is threadedly connected to the outer wall of the bidirectional screw 216, moves. Since the rack 212 has a limited length, when the gear 217 separates from the rack 212, the clamping plate 218 clamps and fixes the upper mold body 6. The descent of the support block 215 causes the vacuum nozzle 313 to approach the lower mold body 6, realizing the smooth transfer of the upper mold body 6 and ensuring its safety during the transfer process, avoiding mold damage or safety accidents caused by accidental falling.
[0042] By activating the hydraulic rod 314, the inner rod of the hydraulic rod 314 pushes the support plate 311 and the vacuum nozzle 313 to descend. This allows the position of the vacuum nozzle 313 to be adjusted according to the depth of the cavity of the lower mold body 6, enabling the vacuum nozzle 313 to adhere to the lower mold body 6. After adhesion, the lower mold body 6 can be suctioned and discharged by the vacuum generator 312 and the vacuum nozzle 313. This allows for the simultaneous replacement of two mold bodies 6, improving the overall efficiency of mold replacement and reducing equipment downtime.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for rapid replacement of precision molds for automobiles, comprising a support base (1), characterized in that: The supporting base (1) is provided with a material receiving mechanism (2) and an adjusting mechanism (3), the top of the supporting base (1) is fixedly connected with a supporting frame (4), the supporting frame (4) is fixedly connected with a fixed seat (5), and the fixed seat (5) is inserted with a mold body (6); The material receiving mechanism (2) comprises a translation block (211), the bottom end of the translation block (211) is slidably connected to the top of the supporting base (1), the outer wall of the translation block (211) is fixedly connected with a rack (212), the inner wall of the translation block (211) is rotatably connected with a threaded rod (213), the outer wall of the threaded rod (213) is threadedly connected with a lifting block (214), the side wall of the lifting block (214) is fixedly connected with a supporting block (215), the top of the supporting block (215) is rotatably connected with a bidirectional screw rod (216), the outer wall of the bidirectional screw rod (216) is fixedly connected with a gear (217), the outer wall of the gear (217) is meshingly connected with the outer wall of the rack (212), and the outer wall of the bidirectional screw rod (216) is threadedly connected with a clamping plate (218).
2. The device for fast replacement of a precision die in an automobile according to claim 1, characterized in that: The material receiving mechanism (2) further comprises a limiting rod (219), the two ends of the limiting rod (219) are fixedly connected to the top of the supporting block (215) on the left and right sides, respectively, and one end of the clamping plate (218) away from the bidirectional screw rod (216) is slidably connected to the outer wall of the limiting rod (219).
3. The device for fast replacement of a precision die in an automobile according to claim 1, characterized in that: The material receiving mechanism (2) further comprises a motor one (220), the bottom of the motor one (220) is fixedly connected to the top of the translation block (211), and the output end of the motor one (220) is fixedly connected with the top end of the threaded rod (213).
4. The device for fast replacement of a precision die in an automobile according to claim 1, characterized in that: The material receiving mechanism (2) further comprises a motor two (221), and the outer wall of the motor two (221) is fixedly connected to the top of the supporting base (1).
5. The device for fast replacement of a precision die in an automobile according to claim 1, characterized in that: The material receiving mechanism (2) further comprises a lead screw (222), one end of the lead screw (222) is rotatably connected to the top of the supporting base (1), and the other end of the lead screw (222) is fixedly connected with the output end of the motor two (221).
6. The device for fast replacement of a precision die in an automobile according to claim 1, characterized in that: The material receiving mechanism (2) further comprises a lead screw sliding block (223), the inner wall of the lead screw sliding block (223) is threadedly connected to the outer wall of the lead screw (222), the side wall of the lead screw sliding block (223) is slidably connected to the top of the supporting base (1), and the top of the lead screw sliding block (223) is fixedly connected with the bottom of the translation block (211).
7. The device for fast replacement of a precision die in an automobile according to claim 1, characterized in that: The adjusting mechanism (3) comprises a supporting plate (311), the side wall of the supporting plate (311) is slidably connected to the inner wall of the bottom of the translation block (211), and the top of the supporting plate (311) is fixedly connected with a vacuum generator (312).
8. The device for fast replacement of a precision die in an automobile according to claim 1, characterized in that: The adjusting mechanism (3) further comprises a vacuum nozzle (313), and the outer wall of the vacuum nozzle (313) is fixedly connected to the inner wall of the bottom of the supporting plate (311).
9. The device for fast replacement of a precision die in an automobile according to claim 1, characterized in that: The adjusting mechanism (3) further comprises a hydraulic rod (314), and the top of the hydraulic rod (314) is fixedly connected to the inner wall of the supporting block (215).
10. The device for fast replacement of a precision die in an automobile according to claim 9, characterized in that: The inner rod of the hydraulic rod (314) is fixedly connected to the top of the supporting plate (311).