A rapid die changing device for a stamping die

Abstract

This utility model relates to a quick die-changing device for stamping dies, including a stamping die assembly and a feeding assembly installed on the front side of the stamping die assembly. Several slots are formed along the left-right direction on the lower stamping die plate, and distributed along the front-back direction. Several limiting rods are detachably installed in the slots along the front-back direction. The feeding assembly includes two feeding bases arranged side-by-side along the left-right direction. A feeding extension arm is installed on the front side of the feeding conveyor frame, and the feeding extension arm can be rotated and adjusted relative to the feeding conveyor frame. This utility model, through the quick-change structure composed of slots and limiting rods, achieves rapid positioning and fixing of the limiting rods through a plug-in design, adapting to the production needs of various workpieces and significantly improving production efficiency. This utility model, with its rotatable feeding extension arm, adapts to the feeding angle requirements of different stamping stations, making it suitable for production in various scenarios.

Description

Technical Field

[0001] This utility model relates to the technical field of stamping dies, and in particular to a quick die changing device for stamping dies. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts.

[0003] A search revealed Chinese patent publication number CN222077752U, which discloses a guide side alignment mechanism for a continuous feeding stamping die. The mechanism includes a die base plate, with a track arranged in the middle of the die base plate along the left-right direction. Two sets of guide units are arranged on the track, with the two sets of guide units located on opposite sides of the track along the front-back direction. Each guide unit includes two guide mechanisms and a slanted slider. The two guide mechanisms are arranged sequentially along the side away from the track and facing each other, while the slanted slider is located between the two guide mechanisms.

[0004] The existing feeding stamping die has an integrated structure between the guide unit of the guide side mechanism and the die base plate, which makes it impossible to quickly replace guide components of different specifications and is difficult to adapt to the production needs of various workpieces.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a quick die-changing device for stamping dies, making it more valuable for industrial use. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a quick die changing device for stamping dies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A quick die changing device for stamping dies includes a stamping die assembly and a feeding assembly installed on the front side of the stamping die assembly.

[0009] The stamping die assembly includes a stamping base frame, in which an upper stamping die holder and a lower stamping die holder are installed sequentially from top to bottom. An upper stamping template is installed at the bottom of the upper stamping die holder, and a lower stamping template is installed on the lower stamping die holder directly below the upper stamping template.

[0010] Several slots are provided on the stamping die along the left and right directions, and the slots are distributed along the front and back directions. Several limit rods are detachably installed in the slots along the front and back directions.

[0011] The feeding assembly includes two feeding bases arranged side by side along the left and right direction. The feeding bases are installed on the front side of the stamping die holder. A feeding conveyor is installed on the feeding base. A feeding extension arm is installed on the front side of the feeding conveyor. The feeding extension arm can be rotated and adjusted relative to the feeding conveyor.

[0012] A feeding conveyor wheel set that runs in the front-to-back direction is installed on the feeding conveyor frame, and a feeding guide wheel set that runs in the front-to-back direction and is adapted to the aforementioned feeding conveyor wheel set is installed on the feeding extension arm.

[0013] As a further improvement of this utility model, clamping mechanisms are installed on both the left and right sides of the stamping template.

[0014] As a further improvement of this utility model, the clamping mechanism is an elbow clamp.

[0015] As a further improvement of this utility model, side guide wheel sets are installed on both the left and right sides of the stamping template, and several bottom guide wheel sets are installed on the stamping template inside the two side guide wheel sets along the left and right directions, and both the side guide wheel sets and the bottom guide wheel sets run along the front and back directions.

[0016] As a further improvement of this utility model, the two feeding conveyor frames are connected together by a transmission cover. A servo motor and a reducer are installed on the left feeding conveyor frame and connected to each other. The reducer is connected to the left and right feeding conveyor wheel sets respectively through the transmission shaft located inside the transmission cover.

[0017] As a further improvement of this utility model, the rotating support part on the front side of the feeding conveyor frame and the rotating connecting part on the rear side of the feeding extension arm are rotatably mounted together.

[0018] As a further improvement of this utility model, an upper support block is installed at the bottom rear side of the feeding extension arm, and the upper support block can be placed on the lower support frame below.

[0019] As a further improvement of this utility model, a lower pad is installed on the top of the lower support frame.

[0020] As a further improvement of this utility model, a stop is installed on the front side of the feeding extension arm.

[0021] By means of the above solution, this utility model has at least the following advantages:

[0022] This utility model uses a quick-change structure composed of a slot and a limiting rod. Through a plug-in design, the limiting rod can be quickly positioned and fixed, which can adapt to the production needs of various workpieces and greatly improve production efficiency.

[0023] This utility model uses a rotatable feeding extension arm to adapt to the feeding angle requirements of different stamping stations, making it suitable for production in multiple scenarios.

[0024] This invention improves the accuracy and stability of feeding through a multi-stage guiding structure consisting of side guide wheel sets and bottom guide wheel sets.

[0025] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a quick die changing device for stamping dies according to this utility model;

[0028] Figure 2 yes Figure 1 Schematic diagram of the structure of the stamping module;

[0029] Figure 3 yes Figure 1 Schematic diagram of the structure of the central feeding assembly;

[0030] Figure 4 yes Figure 3 The main view.

[0031] The meanings of the labels in the figures are as follows.

[0032] Stamping module 1; feeding assembly 2;

[0033] Stamping base frame 101, stamping upper die holder 102, stamping upper template 103, stamping lower die holder 104, stamping lower template 105, clamping mechanism 106, side guide wheel assembly 107, slot 108, bottom guide wheel assembly 109, limit rod 110;

[0034] Feeding base 201, feeding conveyor frame 202, servo motor 203, reducer 204, feeding conveyor wheel assembly 205, feeding extension arm 206, feeding guide wheel assembly 207, rotating support part 208, rotating connection part 209, lower support frame 210, stop block 211, transmission cover 212, upper support block 213, lower pad block 214. Detailed Implementation

[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] The first embodiment of this utility model:

[0038] like Figure 1 The quick die changing device for stamping dies in this embodiment mainly includes a stamping die 1 and a feeding assembly 2 installed on the front side of the stamping die 1. The stamping die 1 is mainly used to perform stamping processing on the workpiece, and the feeding assembly 2 is mainly used to transport the workpiece to be stamped to the stamping die 1 on the rear side.

[0039] I. Stamping Module 1:

[0040] 1. The stamping module 1 mainly includes a stamping base frame 101, an upper stamping die holder 102, an upper stamping template 103, a lower stamping die holder 104, and a lower stamping template 105.

[0041] like Figure 2 The stamping base frame 101 serves as the basic load-bearing structure of the stamping module 1. A stamping upper die holder 102 is installed on the top of the inner side of the stamping base frame 101, and a stamping upper template 103 is installed on the bottom of the stamping upper die holder 102. A stamping drive component (stamping cylinder, etc.) located inside the stamping upper die holder 102 drives the stamping upper template 103 below to move up and down.

[0042] A lower stamping die holder 104 is installed at the bottom inside the stamping base 101, and a lower stamping die holder 105 adapted to the upper stamping die holder 103 is installed on the top of the lower stamping die holder 104. When the workpiece to be processed is transported to the lower stamping die holder 105 through the feeding assembly 2, the upper stamping die holder 103 is pressed down to complete the stamping process of the workpiece.

[0043] 2. A quick-change die structure is installed on the stamping die plate 105:

[0044] Several slots 108 are provided on the stamping template 105 along the left and right directions. The slots 108 are distributed along the front and back directions. Several limiting rods 110 are detachably installed in the slots 108 along the front and back directions.

[0045] The slot 108 is a T-shaped slot with a width of 12mm and a depth of 8mm. Several slots are evenly distributed along the left and right directions with a spacing of 50mm. An M6 threaded hole is opened at the bottom of the slot for fixing the limit rod 110.

[0046] The limiting rod 110 is cylindrical with a diameter of 10mm and a length customized according to the depth of the slot (usually 50~100mm). An annular groove is set in the middle of the rod body. After being inserted into the slot 108, it is locked by bolts through the groove and the threaded hole at the bottom of the slot to prevent the limiting rod 110 from loosening.

[0047] The limiting rod 110 can be inserted into the slot 108 in the front-to-back direction, and its plug-in design enables quick positioning and fixation. By replacing the limiting rod 110 at different positions, the processing area on the lower stamping template 105 can be flexibly adjusted, thus accommodating the processing of workpieces of various sizes. The height of the workpiece is generally higher than the height of the limiting rod 110 after installation, therefore the installation of the limiting rod 110 will not interfere with the processing of the workpiece.

[0048] 3. A multi-stage guide structure is installed on the stamping die 105:

[0049] Side guide wheel sets 107 are installed on both the left and right sides of the stamping template 105. Several bottom guide wheel sets 109 are installed on the stamping template 105 inside the two side guide wheel sets 107 along the left and right directions. Both the side guide wheel sets 107 and the bottom guide wheel sets 109 run along the front and back directions.

[0050] Each of the side guide wheel sets 107 contains two guide wheels with a diameter of 50mm and a V-groove rim (groove angle 90°). The wheel is made of bearing steel GCr15 and is chrome-plated (plating thickness 5μm). The guide wheels are mounted on the bracket via bearings. The bracket is fixed to both sides of the stamping lower template. The spacing between the guide wheels can be adjusted within the range of 50~100mm by adjusting the position of the bracket.

[0051] Three sets of bottom guide wheels are installed along the left and right directions. Each set contains three guide wheels with a diameter of 40mm and a flat rim. The wheels are made of nylon 66. The guide wheels are mounted on the stamping template via shafts. Retaining rings are set at both ends of the shafts to prevent axial movement. The guide wheels can rotate freely and have a friction coefficient of ≤0.05.

[0052] The multi-stage guiding structure, consisting of the side guide wheel assembly 107 and the bottom guide wheel assembly 109, forms a three-dimensional guiding structure of "side clamp + bottom support". The side guide wheel assembly can limit the lateral deviation of the material, while the bottom guide wheel assembly supports the material to prevent sagging, ensuring that the material is smoothly fed into the stamping area in a straight line, which can greatly improve the accuracy and stability of feeding.

[0053] 4. A clamping mechanism 106 is installed on the stamping die 105:

[0054] Clamping mechanisms 106 are installed on both the left and right sides of the stamping die 105. The clamping mechanisms 106 are elbow clamps. The elbow clamps are horizontal quick clamps, model JS-100, with a clamping force of up to 500N. The clamping / releasing action can be completed by rotating the handle 90°. The surface of the clamp head is covered with a rubber pad to prevent damage to the mold surface.

[0055] The elbow clamps on both sides can quickly clamp the workpiece without the need for screws, making operation convenient. The elbow clamps use the lever principle, providing stable and adjustable clamping force to ensure that the mold does not loosen during the stamping process.

[0056] II. Feeding Component 2:

[0057] like Figure 3 The feeding assembly mainly includes a feeding base 201, a feeding conveyor frame 202, a feeding conveyor wheel set 205, a feeding extension arm 206, and a feeding guide wheel set 207.

[0058] 1. The feeding assembly 2 includes two feeding bases 201 arranged side by side along the left-right direction. The feeding bases 201 are installed on the front side of the stamping die holder 104. A feeding conveyor frame 202 is installed on the feeding bases 201, and a feeding extension arm 206 is installed on the front side of the feeding conveyor frame 202. A feeding conveyor wheel set 205 that runs along the front-back direction is installed on the feeding conveyor frame 202, and a feeding guide wheel set 207 that runs along the front-back direction and is adapted to the feeding conveyor wheel set 205 is installed on the feeding extension arm 206.

[0059] The feeding guide wheel assembly 207 is compatible with the feeding conveyor wheel assembly 205: the feeding guide wheel assembly 207 on the feeding extension arm 206 matches the diameter and groove shape of the feeding conveyor wheel assembly 205. When the material passes through, it is driven by the feeding conveyor wheel assembly 205, and the feeding guide wheel assembly 207 assists in positioning to prevent the material from slipping or deviating during the conveying process.

[0060] 2. The feeding extension arm 206 can be rotated and adjusted relative to the feeding conveyor frame 202, that is, the rotating support part 208 on the front side of the feeding conveyor frame 202 and the rotating connecting part 209 on the rear side of the feeding extension arm 206 are rotatably installed together.

[0061] The rotating support 208 is a rotating seat with a bearing, bearing model 6205, which allows the feeding extension arm 206 to rotate around the vertical axis; the rotating connection 209 is a lug structure, which is connected to the rotating support by an M8 bolt. The bolt tightening torque is 15 N·m to ensure that the tightness is appropriate during rotation.

[0062] The feeding extension arm 206 is connected to the feeding conveyor frame 202 via the rotating support 208, and can rotate 0°~30° in the vertical plane around the rotation axis to adapt to the feeding angle requirements of different stamping stations. For example, when the height of the stamping die is adjusted, the extension arm can be rotated to align the feeding guide wheel set with the stamping inlet to avoid material misalignment.

[0063] 3. The two feeding conveyor frames 202 are connected together by a transmission cover 212. A servo motor 203 and a reducer 204 are installed on the left feeding conveyor frame 202 and are connected to each other. The reducer 204 is connected to the left and right feeding conveyor wheel sets 205 respectively through the transmission shaft located inside the transmission cover 212.

[0064] The servo motor 203 is model MS1H3-10B30CB, with a rated power of 1kW and a speed of 3000r / min; the reducer 204 is a planetary gear reducer with a reduction ratio of 10:1. The output shaft is connected to the transmission shaft through a coupling. The transmission shaft has a diameter of 20mm, is made of 45# steel, and has been surface hardened (hardness HRC45~50).

[0065] The left and right feeding conveyors are connected by a transmission cover. The internal transmission shaft is sealed by a protective cover to prevent dust and metal shavings from entering, extend the life of the transmission components, and reduce noise (noise level ≤75dB).

[0066] The servo motor on the left feeding conveyor frame drives the transmission shaft through a reducer, realizing precise speed adjustment of the feeding conveyor wheel set (speed range 0~100r / min). With the help of encoder feedback, the feeding accuracy can reach ±0.1mm, which is suitable for the production of high-precision stamped parts.

[0067] 4. Support structure at the bottom of the feeding extension arm 206:

[0068] like Figure 4 An upper support block 213 is installed at the bottom rear side of the feeding extension arm 206. The upper support block 213 can be placed on the lower support frame 210 below. A lower pad block 214 is installed on the top of the lower support frame 210.

[0069] The upper support block 213 on the rear side of the feeding extension arm 206 is placed on the lower pad block 214 of the lower support frame 210. The lower pad block 214 is made of polyurethane material, which can absorb vibration during the feeding process and prevent the extension arm from shaking and affecting the feeding accuracy.

[0070] In addition, a stop 211 is installed on the front side of the feeding extension arm 206. The stop 211 on the front side of the feeding extension arm 206 is a rectangular steel plate with a thickness of 15mm and a height of 50mm. The installation position is aligned with the feeding path to prevent the material from rushing out of the feeding area. A reflective warning strip is affixed to the surface of the stop 211 to improve safety.

[0071] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0072] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0073] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A quick die changing device for stamping dies, comprising a stamping die assembly (1) and a feeding assembly (2) installed on the front side of the stamping die assembly (1). The stamping module (1) includes a stamping base frame (101), in which an upper stamping die holder (102) and a lower stamping die holder (104) are installed from top to bottom. An upper stamping template (103) is installed at the bottom of the upper stamping die holder (102), and a lower stamping template (105) is installed on the lower stamping die holder (104) directly below the upper stamping template (103). Its features are: Several slots (108) are provided on the stamping template (105) along the left and right direction. The slots (108) are distributed along the front and back direction. Several limiting rods (110) are detachably installed in the slots (108) along the front and back direction. The feeding assembly (2) includes two feeding bases (201) arranged side by side along the left and right direction. The feeding bases (201) are installed on the front side of the stamping die holder (104). A feeding conveyor frame (202) is installed on the feeding bases (201). A feeding extension arm (206) is installed on the front side of the feeding conveyor frame (202). The feeding extension arm (206) can be rotated and adjusted relative to the feeding conveyor frame (202). A feeding conveyor wheel assembly (205) that runs in the front-to-back direction is installed on the feeding conveyor frame (202), and a feeding guide wheel assembly (207) that runs in the front-to-back direction and is adapted to the feeding conveyor wheel assembly (205) is installed on the feeding extension arm (206).

2. The quick die changing device for stamping dies as described in claim 1, characterized in that, Clamping mechanisms (106) are installed on both the left and right sides of the stamping template (105).

3. The quick die changing device for stamping dies as described in claim 2, characterized in that, The clamping mechanism (106) is an elbow clamp.

4. The quick die changing device for stamping dies as described in claim 1, characterized in that, Side guide wheel sets (107) are installed on both the left and right sides of the stamping lower template (105). Several bottom guide wheel sets (109) are installed on the stamping lower template (105) inside the two side guide wheel sets (107) along the left and right direction. Both the side guide wheel sets (107) and the bottom guide wheel sets (109) run along the front and back direction.

5. A quick die changing device for stamping dies as described in claim 1, characterized in that, The two feeding conveyor frames (202) are connected together by a transmission cover (212). A servo motor (203) and a reducer (204) connected together are installed on the left feeding conveyor frame (202). The reducer (204) is connected to the left and right feeding conveyor wheel sets (205) respectively through a transmission shaft located inside the transmission cover (212).

6. A quick die changing device for stamping dies as described in claim 1, characterized in that, The rotating support (208) on the front side of the feeding conveyor (202) and the rotating connecting part (209) on the rear side of the feeding extension arm (206) are rotatably mounted together.

7. A quick die changing device for stamping dies as described in claim 1, characterized in that, An upper support block (213) is installed at the rear bottom of the feeding extension arm (206), and the upper support block (213) can be placed on the lower support frame (210) below.

8. A quick die changing device for stamping dies as described in claim 7, characterized in that, A lower pad (214) is installed on the top of the lower support frame (210).

9. A quick die changing device for stamping dies as described in claim 1, characterized in that, A stop (211) is installed on the front side of the feeding extension arm (206).

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