Upper punch

Abstract

The utility model relates to the technical field of upper punches and discloses an upper punch which comprises a hydraulic cylinder, a first mounting plate and a second mounting plate, a mounting block is arranged at the end of the hydraulic cylinder, a connecting plate is arranged on the side of the hydraulic cylinder, the connecting plate is arranged on the side of the first mounting plate, and the second mounting plate is arranged at the bottom of the first mounting plate. A clamping mechanism is arranged in the second mounting plate, through the arrangement of the clamping mechanism, when a hydraulic cylinder is started, the output end of the hydraulic cylinder drives the second mounting plate to slide on a limiting rod, meanwhile, a second clamping ring slides on the outer side of the limiting rod, and the limiting rod extrudes a second telescopic column and a spring on the outer side of the second telescopic column; and a first telescopic column and a spring on the outer side of the first telescopic column are further arranged, so that the effect of preventing the upper punch from deviating due to uneven stress when the powder is pressed is achieved, the quality and precision of products are improved, and the problems of size inconsistency, shape distortion and the like are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of upper punches, in particular to an upper punch. Background Art

[0002] The upper punch of powder pressure forming usually refers to a component used in powder metallurgy pressure forming equipment. Its function is to apply pressure to the powder material during the forming process so that it can obtain the desired shape in the mold. These upper punches are usually made of wear-resistant materials to ensure that they can withstand high pressure and friction during the forming process and maintain the required forming accuracy and surface quality. The upper punch of powder pressure forming is usually an important component of powder metallurgy pressure forming equipment for forming powder materials. In the powder metallurgy forming process, the powder is loaded into the mold and then pressure is applied to obtain the desired shape in the mold. The upper punch plays the role of applying pressure. These upper punches are generally made of materials with high wear resistance, such as cemented carbide or special alloy steel. Such materials can maintain stable performance under high pressure and friction conditions, ensuring that the powder can maintain the required shape and accuracy during the forming process.

[0003] At present, when the upper punch is used to press the powder, if the upper punch is subjected to uneven force, it may be offset during the pressing process. The offset may cause the size and shape of the molded part to be inconsistent with the design requirements, thereby affecting the quality and precision of the product. The offset may cause problems such as inconsistent size and distorted shape of the product, reducing the functionality and reliability of the product; therefore, it does not meet the existing needs, and we propose an upper punch for this purpose. Utility Model Content

[0004] The utility model provides an upper punch, which has the beneficial effect of preventing the upper punch from deflecting due to uneven force when pressing powder, and solves the problem mentioned in the above background technology that when the upper punch presses powder, if the upper punch is unevenly stressed, it may cause it to deflect during the pressing process, and the deflection may cause the size and shape of the molded part to be inconsistent with the design requirements, thereby affecting the quality and precision of the product. The deflection may cause the product to have problems such as inconsistent size and distorted shape, reducing the functionality and reliability of the product.

[0005] The utility model provides the following technical solution: an upper punch, comprising a hydraulic cylinder, a first mounting plate and a second mounting plate, wherein a mounting block is arranged at the end of the hydraulic cylinder, a connecting plate is arranged at the side of the hydraulic cylinder, the connecting plate is arranged at the side of the first mounting plate, the second mounting plate is arranged at the bottom of the first mounting plate, and a clamping mechanism is arranged inside the second mounting plate.

[0006] As an optional solution for the upper punch described in the utility model, wherein: a threaded hole is opened on the side of the connecting plate, and the connecting plate is bolted to the side of the first mounting plate.

[0007] As an optional solution for the upper punch described in the utility model, wherein: a limiting rod is connected between the first mounting plate and the second mounting plate, and two limiting rods are provided, and the two limiting rods are inserted on both sides of the first mounting plate and the second mounting plate.

[0008] As an optional solution for the upper punch described in the utility model, wherein: a mounting tube is integrally connected to the bottom of the second mounting plate, two mounting tubes are provided, and the two mounting tubes are slidably matched with the locking mechanism.

[0009] As an optional scheme for the upper punch described in the utility model, wherein: a mounting groove is opened inside the mounting tube, the locking mechanism is arranged inside the mounting tube, the locking mechanism includes a locking ring and a locking pin, the locking ring is connected to the inside of the mounting groove, and there are several locking pins, one end of several of the locking pins is connected to the inner wall of the mounting tube, and the other end of several of the locking pins is connected to the side of the locking ring.

[0010] As an optional scheme for the upper punch described in the utility model, wherein: a first clamping ring and a second clamping ring are arranged inside the clamping ring, a base is connected to the side of the clamping ring, a first telescopic column is connected between the first clamping ring and the base, a first spring is sleeved on the outside of the first telescopic column, a second telescopic column is connected between the second clamping ring and the first clamping ring, and a second spring is sleeved on the outside of the second telescopic column.

[0011] As an optional solution for the upper punch described in the utility model, wherein: a ball is arranged on the inner wall of the second clamping ring, and a plurality of the ball are arranged, and the plurality of the ball are slidably connected to the limit rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. The upper punch, through the setting of the clamping mechanism, when the hydraulic cylinder is started, the output end of the hydraulic cylinder drives the second mounting plate to slide on the limit rod, and at the same time the second clamping ring slides on the outside of the limit rod, and the limit rod squeezes the second telescopic column and the spring on the outside of the second telescopic column, as well as the first telescopic column and the spring on the outside of the first telescopic column, so as to prevent the upper punch from deflecting due to uneven force when pressing the powder, thereby improving the quality and precision of the product, reducing the occurrence of problems such as inconsistent size and shape distortion, and solving the problem that when the upper punch is pressed on the powder, if the upper punch is unevenly stressed, it may cause it to deflect during the pressing process, and the deflection may cause the size and shape of the molded part to be inconsistent with the design requirements, thereby affecting the quality and precision of the product. The deflection may cause the product to have problems such as inconsistent size and shape distortion, and reduce the functionality and reliability of the product.

[0014] 2. The upper punch is provided with a ball, which cooperates with the locking mechanism. When the second mounting plate slides with the limit rod, the ball slides on the limit rod, thereby improving the effect of ensuring uniform force and preventing the occurrence of deviation. At the same time, the upper punch can maintain a stable working state during the pressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the cutaway structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the locking mechanism of the utility model.

[0019] Figure 5 It is a schematic diagram of the cutaway structure of the engaging mechanism of the utility model.

[0020] In the figure: 110, hydraulic cylinder; 111, mounting block; 112, connecting plate; 113, threaded hole; 120, first mounting plate; 130, second mounting plate; 131, limit rod; 132, mounting cylinder; 133, mounting groove; 140, snap-fit ​​mechanism; 141, snap-fit ​​ring; 142, snap-fit ​​pin; 143, first snap ring; 144, second snap ring; 145, first telescopic column; 150, second telescopic column; 151, first spring; 152, second spring; 153, ball; 154, base. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1: This embodiment is intended to help solve the problem that when the upper punch is pressing powder, if the upper punch is subjected to uneven force, it may cause it to deviate during the pressing process. The deviation may cause the size and shape of the molded part to be inconsistent with the design requirements, thereby affecting the quality and precision of the product. The deviation may cause the product to have inconsistent size and distorted shape, reducing the functionality and reliability of the product. Please refer to Figure 1-5 An upper punch includes a hydraulic cylinder 110, a first mounting plate 120 and a second mounting plate 130, a mounting block 111 is provided at the end of the hydraulic cylinder 110, a connecting plate 112 is provided at the side of the hydraulic cylinder 110, the connecting plate 112 is provided at the side of the first mounting plate 120, the second mounting plate 130 is provided at the bottom of the first mounting plate 120, and a locking mechanism 140 is provided inside the second mounting plate 130.

[0023] A threaded hole 113 is opened on the side of the connecting plate 112, and the connecting plate 112 is bolted to the side of the first mounting plate 120. A limiting rod 131 is connected between the first mounting plate 120 and the second mounting plate 130. Two limiting rods 131 are provided, and the two limiting rods 131 are inserted on both sides of the first mounting plate 120 and the second mounting plate 130.

[0024] A mounting tube 132 is integrally connected to the bottom of the second mounting plate 130. Two mounting tubes 132 are provided. The two mounting tubes 132 are slidably matched with the locking mechanism 140. A mounting groove 133 is provided inside the mounting tube 132. The locking mechanism 140 is arranged inside the mounting tube 132. The locking mechanism 140 includes a locking ring 141 and a locking pin 142. The locking ring 141 is connected to the inside of the mounting groove 133. There are several locking pins 142. One end of several locking pins 142 is connected to the inner wall of the mounting tube 132, and the other end of several locking pins 142 is connected to the side of the locking ring 141.

[0025] A first snap ring 143 and a second snap ring 144 are provided inside the snap ring 141, a base 154 is connected to the side of the snap ring 141, a first telescopic column 145 is connected between the first snap ring 143 and the base 154, a first spring 151 is sleeved on the outside of the first telescopic column 145, a second telescopic column 150 is connected between the second snap ring 144 and the first snap ring 143, a second spring 152 is sleeved on the outside of the second telescopic column 150, the first telescopic column 145 includes a first fixed column and a first sliding column, the first fixed column is connected to the side of the base 154, the first sliding column is connected to the side of the first snap ring 143, the first sliding column is slidably connected to the first telescopic column 145, the second telescopic column 150 includes a second fixed column and a second sliding column, the second fixed column is connected to the side of the first snap ring 143, the second sliding column is connected to the side of the second snap ring 144, and the second fixed column is slidably connected to the second sliding column.

[0026] In this embodiment: through the setting of the clamping mechanism 140, when the hydraulic cylinder 110 is started, the output end of the hydraulic cylinder 110 drives the second mounting plate 130 to slide on the limiting rod 131, and the second clamping ring 144 slides on the outside of the limiting rod 131, and the limiting rod 131 squeezes the second telescopic column 150 and the spring on the outside of the second telescopic column 150, as well as the first telescopic column 145 and the spring on the outside of the first telescopic column 145, so as to prevent the upper punch from deviating due to uneven force when pressing the powder, thereby improving the quality and precision of the product, reducing the occurrence of problems such as inconsistent size and shape distortion, and solving the problem that when the upper punch is pressed on the powder, if the upper punch is unevenly stressed, it may cause it to deviate during the pressing process, and the deviation may cause the size and shape of the molded part to be inconsistent with the design requirements, thereby affecting the quality and precision of the product. The deviation may cause the product to have problems such as inconsistent size and shape distortion, and reduce the functionality and reliability of the product.

[0027] Embodiment 2: This embodiment is intended to promote the solution to the problem of uneven force. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-5 A ball 153 is disposed on the inner wall of the second clamping ring 144 . A plurality of ball 153 are disposed. The plurality of ball 153 are slidably connected to the limiting rod 131 .

[0028] In the present embodiment: by providing the ball 153, the ball 153 cooperates with the locking mechanism 140, and while the second mounting plate 130 and the limiting rod 131 slide, the ball 153 slides on the limiting rod 131, thereby improving the effect of ensuring uniform force and thus preventing the occurrence of deviation. At the same time, it also enables the upper punch to maintain a stable working state during the pressing process.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An upper punch, comprising a hydraulic cylinder (110), a first mounting plate (120) and a second mounting plate (130), characterized in that: The end of the hydraulic cylinder (110) is provided with a mounting block (111), the side of the hydraulic cylinder (110) is provided with a connecting plate (112), the connecting plate (112) is arranged on the side of the first mounting plate (120), the second mounting plate (130) is arranged at the bottom of the first mounting plate (120), and a clamping mechanism (140) is arranged inside the second mounting plate (130); A limiting rod (131) is connected between the first mounting plate (120) and the second mounting plate (130), and two limiting rods (131) are provided. The two limiting rods (131) are plugged on both sides of the first mounting plate (120) and the second mounting plate (130); The bottom of the second mounting plate (130) is integrally connected with a mounting tube (132), two mounting tubes (132) are provided, and the two mounting tubes (132) are slidably matched with the engaging mechanism (140); The installation tube (132) is provided with an installation groove (133) inside. The locking mechanism (140) is arranged inside the installation tube (132). The locking mechanism (140) comprises a locking ring (141) and a locking pin (142). The locking ring (141) is connected to the inside of the installation groove (133). There are a plurality of locking pins (142). One end of the plurality of locking pins (142) is connected to the inner wall of the installation tube (132), and the other end of the plurality of locking pins (142) is connected to the side of the locking ring (141).

2. An upper punch according to claim 1, characterized in that: A threaded hole (113) is provided on the side of the connecting plate (112), and the connecting plate (112) is bolted to the side of the first mounting plate (120).

3. The upper punch according to claim 1, characterized in that: A first snap ring (143) and a second snap ring (144) are arranged inside the snap ring (141); a base (154) is connected to the side of the snap ring (141); a first telescopic column (145) is connected between the first snap ring (143) and the base (154); a first spring (151) is sleeved on the outer side of the first telescopic column (145); a second telescopic column (150) is connected between the second snap ring (144) and the first snap ring (143); a second spring (152) is sleeved on the outer side of the second telescopic column (150).

4. An upper punch according to claim 3, characterized in that: A ball (153) is arranged on the inner wall of the second clamping ring (144), and a plurality of the ball (153) are arranged. The plurality of the ball (153) are slidably connected to the limiting rod (131).

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