Photo frame punching device with positioning mechanism

Abstract

The present invention relates to the field of metal punching technology, and in particular to a photo frame punching device with a positioning mechanism. It comprises: a frame body, used to limit the position of the photo frame, the frame body is installed with a hydraulic push rod; a punching rod, fixedly connected to the telescopic end of the hydraulic push rod; a shell, fixedly connected to the frame body, the shell is filled with a cooling medium; a blocking piece, slidably connected to the shell, the punching rod is used to extrude the blocking piece; a positioning mechanism, arranged on the frame body, used to position the photo frame; a blocking mechanism, arranged on the punching rod, used to block the shell. The present invention wraps the "punching area" of the punching rod with the cooling medium in the shell body, thereby comprehensively cooling the punching rod, preventing the punching rod from having an excessively high temperature, which reduces its hardness and wear resistance, thereby reducing the punching accuracy, and even causing local deformation or wear of the punching rod, shortening its service life.

Description

Technical Field

[0001] The invention relates to the technical field of metal punching, in particular to a photo frame punching device with a positioning mechanism. Background Art

[0002] Photo frames are decorative items used to mount and display photos or images. Metal photo frames are a common material for photo frames. Compared with wooden or plastic photo frames, they are more durable and suitable for long-term use. Metal photo frames can provide more gorgeous and high-end decorative effects. Metal photo frames can adopt various shapes and surface treatments to meet different aesthetic needs. Since metal photo frames need to be installed on walls or brackets, it is necessary to open mounting holes on the photo frames for fixing hooks or screws. Sometimes the design of the photo frame will add some decorative holes on the frame to increase the visual beauty. In this case, the photo frame needs to be punched. Punching is widely used because it has the characteristics of high efficiency and good effect.

[0003] The existing punching technology simply uses a punching rod to punch the photo frame. However, during the punching process, the punching rod will rub against the photo frame violently. During the long-term repeated punching process, a large amount of heat will be generated. If the punching rod is not cooled in time, the temperature will be too high, which will cause its hardness to decrease and accelerate wear. At the same time, the high temperature will cause burrs or deformation on the surface of the photo frame, thereby reducing the punching quality of the photo frame. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above technology, the present invention provides a photo frame punching device with a positioning mechanism.

[0005] The technical solution of the present invention is: a photo frame punching device with a positioning mechanism, comprising: a frame, the frame is provided with a groove for limiting the photo frame part, the frame is installed with a hydraulic push rod; a punching rod is fixedly connected to the telescopic end of the hydraulic push rod; a shell is fixedly connected to the frame, the shell is filled with a cooling medium, the shell is slidably connected to the punching rod; a blocking piece is slidably connected to the shell, the punching rod is used to extrude the blocking piece; two positioning mechanisms are arranged in a mirror image, both are arranged on the frame, and are used to position the photo frame part; a blocking mechanism is arranged on the punching rod and is used to block the shell.

[0006] As a preferred technical solution of the present invention, the positioning mechanism includes: a positioning block, slidably connected to the frame, and used to position and clamp the photo frame; a mounting rod, slidably connected to the frame; and a telescopic rod, hinged between the positioning block and the mounting rod.

[0007] As a preferred technical solution of the present invention, the blocking mechanism includes: a movable frame, which is arranged on the punching rod, and the punching rod is provided with bosses arranged at intervals, and the bosses are used to limit the movable frame; an intermediate frame, which is slidably connected to the movable frame, the mounting rod is fixedly connected to the intermediate frame, the intermediate frame is slidably connected to the blocking member, and a first elastic element is fixedly connected between the intermediate frame and the movable frame; a first limiting member, which is fixedly connected to the frame body, and the first limiting member is provided with a first limiting groove, and the first limiting groove is used to limit the blocking member.

[0008] As a preferred technical solution of the present invention, the first limiting groove is composed of a vertical groove and an inclined groove connected together, and is used to enable the blocking member and the punching rod to move relative to each other in the horizontal direction.

[0009] As a preferred technical solution of the present invention, it also includes: a second limiting member, fixedly connected to the frame body, a gap between the stamping rod and the sealing member, the movable frame is slidably connected to the stamping rod, the second limiting member is provided with a second limiting groove, the stamping rod is slidably connected with a second elastic element, the second elastic element is fixedly connected to the movable frame; a limiting frame, fixedly connected to the second elastic element, one of the bosses on the stamping rod and the movable frame both limit the limiting frame, the limiting frame is provided with a first protrusion, and the second limiting groove is used to limit the first protrusion.

[0010] As a preferred technical solution of the present invention, the distance between the bosses on the punching rod is greater than the sum of the thickness of the moving frame and the thickness of the second elastic element.

[0011] As a preferred technical solution of the present invention, the second limiting groove is composed of a vertical groove and an inclined groove connected together, and is used to enable the limiting frame to press the second elastic element.

[0012] As a preferred technical solution of the present invention, it also includes: a third elastic element, fixedly connected to the sealing member, the third elastic element is initially in a compressed state and is used to fit with the shell, the shell is provided with a channel, a fourth elastic element is provided in the channel, the fourth elastic element is provided with a through hole, and the fourth elastic element is initially in a compressed state and blocks the channel, and the shell is provided with an annular recess; a pressure component is provided on the frame, and is used to pressurize the cooling medium in the shell.

[0013] As a preferred technical solution of the present invention, the pressure-applying assembly includes: a third limiting member, the third limiting member is provided with a third limiting groove, the limiting frame is provided with a second protrusion, the second protrusion is used to squeeze the third limiting groove, and the third limiting member is provided with a fourth limiting groove; an extrusion member, slidably connected to the shell, and the fourth limiting groove is used to limit the extrusion member.

[0014] As a preferred technical solution of the present invention, the side of the sealing member close to the punching rod is a concave surface, and the concave surface is spherical and is used to accumulate cooling medium.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: the present invention wraps the "punching area" of the punching rod with the cooling medium in the shell, thereby comprehensively cooling the punching rod and preventing the punching rod from being overheated and reducing its hardness and wear resistance, thereby reducing the punching accuracy and even causing local deformation or wear of the punching rod and shortening its service life; the positioning block is used to clamp and position the photo frame part, thereby ensuring the stability of the photo frame part during the punching process and improving the accuracy of the punching position; the first protrusion is squeezed by the inclined groove on the second limiting groove, so that the limiting frame squeezes the second elastic element and causes it to deform and expand, thereby making the displacement The movable frame is separated from the contact with the punching rod (during this process, the punching rod and the sealing member are both in sealing contact with the shell), so as to prevent the subsequent sealing member from sliding relative to the punching rod when it moves laterally, thereby causing wear on the punching area of ​​the punching rod and reducing the punching quality of the photo frame; the extrusion member is used to transfer the cooling medium in the shell slightly to the annular concave surface, so as to arrange the cooling medium in the punching area of ​​the punching rod, thereby providing lubrication for subsequent punching, thereby reducing the friction between the punching rod and the photo frame during the punching process, reducing the energy consumption during the punching process, and making the punching process smoother, reducing the generation of burrs, and improving the punching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the hydraulic push rod, the punch rod and the housing of the present invention;

[0018] Figure 3 It is a three-dimensional structural cross-sectional view of the frame and the punching rod of the present invention when they move relative to each other;

[0019] Figure 4 It is a three-dimensional structural cross-sectional view of the frame and the mounting rod of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the punching rod and the moving frame when they slide relative to each other in the present invention;

[0021] Figure 6It is a three-dimensional structural exploded diagram of the housing and parts thereon of the present invention;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the second limiting member and the third limiting member of the present invention;

[0023] Figure 8 A three-dimensional structural cross-sectional view of the movable frame and the second elastic element of the present invention;

[0024] Fig. 9 For the present invention Figure 8 Enlarged view of the three-dimensional structure at A in the middle.

[0025] Among them: 101-photo frame, 1-frame, 2-hydraulic push rod, 3-punching rod, 4-shell, 5-blocking member, 601-positioning block, 602-mounting rod, 603-telescopic rod, 701-movable frame, 702-intermediate frame, 703-first elastic element, 704-first limiting member, 705-first limiting groove, 801-second limiting member, 802-second limiting groove, 803-second elastic element, 804-limiting frame, 805-first protrusion, 901-third elastic element, 902-channel, 903-fourth elastic element, 904-annular recess, 1001-third limiting member, 1002-third limiting groove, 1003-second protrusion, 1004-fourth limiting groove, 1005-extrusion member. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] like Figure 1-Figure 3 As shown in the figure, an embodiment of the present invention is proposed, which provides a photo frame punching device with a positioning mechanism to solve the problem that the existing punching rod generates high temperature due to repeated extrusion and friction during operation, which affects its own performance and ultimately affects the normal punching work. The device comprises: a photo frame body 1, the frame body 1 is provided with a groove for limiting the photo frame part 101, and the frame body 1 is installed with a hydraulic push rod 2; a punching rod 3 is fixedly connected to the telescopic end of the hydraulic push rod 2; a shell body 4 is fixedly connected to the frame body 1, the shell body 4 is filled with a cooling medium, and the shell body 4 is slidably connected to the punching rod 3; a blocking member 5 is slidably connected to the shell body 4, and the punching rod 3 is used to extrude the blocking member 5; two positioning mechanisms are arranged in a mirror image, both are arranged on the frame body 1, and are used to position the photo frame part 101; a blocking mechanism is arranged on the punching rod 3, and is used to block the shell body 4.

[0028] In the above scheme, only the front and rear sides of the groove on the frame body 1 are tightly fitted with the adjacent sides of the photo frame 101, which is convenient for the subsequent positioning of the photo frame 101. The center of the groove on the frame body 1 is located on the axis of the punch rod 3. The shell 4 is connected to the external cooling medium storage device. The cooling medium in the shell 4 is a synthetic cutting fluid, which has good lubrication performance. When working, the photo frame 101 is placed in the groove on the frame body 1, and then the punch rod 3 is driven downward by the telescopic end of the hydraulic push rod 2. The punch rod 3 begins to move in the shell 4, and the punch rod 3 drives the blocking member 5 to move downward together. The punch rod 3 gradually occupies the original position of the blocking member 5 on the shell 4. After the blocking member 5 loses its blockage of the shell 4, the blocking mechanism causes the blocking member 5 and the punch rod 3 to move relative to each other in the horizontal direction, thereby preventing the blocking member 5 from affecting the subsequent movement of the punch rod 3. The punching rod 3 is blocked, and the positioning mechanism gradually clamps and positions the photo frame 101. As the punching rod 3 continues to move downward, the punching rod 3 gradually extends out of the shell 4 and punches the photo frame 101. After the punching is completed, the telescopic end of the hydraulic push rod 2 drives the punching rod 3 to move upward. During the process, the blocking mechanism causes the blocking member 5 to gradually block the shell 4. After the punching rod 3 is completely reset, the "punching area" of the punching rod 3 is already completely located in the cooling medium in the punching rod 3. In this way, the punching rod 3 is fully cooled and cooled to prevent the punching rod 3 from being overheated and reducing its hardness and wear resistance, thereby reducing the punching accuracy, and even causing local deformation or wear of the punching rod 3, shortening its service life, and avoiding the existing cooling method that usually "hollows out" the inside of the punching rod 3 for the cooling medium to pass through, thereby seriously reducing the mechanical properties of the punching rod 3 itself and affecting the normal punching work.

[0029] like Figure 2 and Figure 4 As shown, the positioning mechanism includes: a positioning block 601 slidably connected to the frame body 1 , the positioning block 601 is used to position and clamp the photo frame 101 ; a mounting rod 602 slidably connected to the frame body 1 ; and a telescopic rod 603 hinged between the positioning block 601 and the mounting rod 602 .

[0030] In the above scheme, the telescopic rod 603 is a spring telescopic rod, which is a prior art. The detailed working principle thereof will not be described in detail here. In the process of the punching rod 3 moving downward, the punching rod 3 drives the mounting rod 602 to move downward together through the blocking mechanism. The mounting rod 602 squeezes the telescopic rod 603, and the telescopic rod 603 deflects and drives the positioning block 601 to move toward the direction close to the photo frame 101 (the two positioning blocks 601 move toward each other). The positioning block 601 slides relative to the frame body 1. After the positioning block 601 contacts the photo frame 101, the positioning block 601 drives the photo frame 101 to move together until both positioning blocks 601 contact the photo frame 101. At this time, the positioning of the photo frame 101 is completed, thereby ensuring the stability of the photo frame 101 during the punching process, thereby improving the accuracy of the punching position. As the punching rod 3 continues to move downward, the telescopic rod 603 is continuously compressed until the punching work is completed.

[0031] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the blocking mechanism includes: a movable frame 701, which is arranged on the punching rod 3, and the punching rod 3 is provided with bosses arranged at intervals, and the bosses are used to limit the movable frame 701; an intermediate frame 702, which is slidably connected to the movable frame 701, the mounting rod 602 is fixedly connected to the intermediate frame 702, the intermediate frame 702 is slidably connected to the blocking member 5, and a first elastic element 703 is fixedly connected between the intermediate frame 702 and the movable frame 701; a first limiting member 704, which is fixedly connected to the frame body 1, and the first limiting member 704 is provided with a first limiting groove 705, and the first limiting groove 705 is used to limit the blocking member 5, and the first limiting groove 705 is composed of a vertical groove and an inclined groove connected to each other, and is used to make the blocking member 5 and the punching rod 3 move relative to each other in the horizontal direction.

[0032] In the above scheme, the blocking piece 5 is sealed and slidably connected with the shell 4, the boss on the punching rod 3 is annular, and there are two of them arranged up and down, the first elastic element 703 is a spring, used to reset the movable frame 701, and there are two vertical grooves and an inclined groove between the two on the first limiting groove 705, and the inclined groove gradually tilts downward from left to right. In the process of the punching rod 3 moving downward, the punching rod 3 drives the movable frame 701 to move downward together, and at the same time, the punching rod 3 squeezes the blocking piece 5 downward, and the blocking piece 5 and the shell 4 slide relatively, and the blocking piece 5 slides downward along the vertical groove on the upper side of the first limiting groove 705. When the blocking piece 5 enters the inclined groove on the first limiting groove 705 (at that time, the blocking piece 5 loses its blocking on the shell 4, and the punching rod 3 blocks the shell 4), as the punching rod 3 continues to move downward, the blocking piece 5 begins to move along the inclined groove on the first limiting groove 705. The blocking piece 5 moves to the right while moving downward (the blocking piece 5 gradually intersects with the punching rod 3, and the blocking piece 5 and the movable frame 701 slide relative to each other during the process), until the blocking piece 5 and the punching rod 3 are completely intertwined, at which time the blocking piece 5 enters the vertical groove on the lower side of the first limiting groove 705, and then the punching rod 3 continues to move downward, and the blocking piece 5 is powered by the elastic force generated by the downward movement of the movable frame 701 to compress the first elastic element 703 to slide downward in the vertical groove on the lower side of the first limiting groove 705 (the blocking piece 5 is then in a state of being completely intertwined with the punching rod 3), until the blocking piece 5 moves to the lower end of the vertical groove on the lower side of the first limiting groove 705 and stops moving, and as the punching rod 3 continues to move downward (the movable frame 701 continues to move downward), the first elastic element 703 continues to be compressed until the punching rod 3 completes punching of the photo frame 101.

[0033] like Figure 7 and Figure 8 As shown, it also includes: a second limiting member 801, which is fixedly connected to the frame body 1, and there is a gap between the punching rod 3 and the blocking member 5, which is used to make the "punching area" of the punching rod 3 completely contact with the cooling medium in the shell 4, and the moving frame 701 is slidably connected to the punching rod 3. The second limiting member 801 is provided with a second limiting groove 802, and the second limiting groove 802 is composed of a vertical groove and an inclined groove connected to each other, which is used to make the limiting frame 804 squeeze the second elastic element 803, and the punching rod 3 is slidably connected to the second elastic element 803. There is a second elastic element 803, which is fixedly connected to the movable frame 701, and the distance between the bosses on the punching rod 3 is greater than the sum of the thickness of the movable frame 701 and the thickness of the second elastic element 803; a limiting frame 804 is fixedly connected to the second elastic element 803, and the boss on the upper side of the punching rod 3 and the movable frame 701 both limit the limiting frame 804, and the limiting frame 804 is provided with a first protrusion 805, and the second limiting groove 802 is used to limit the first protrusion 805.

[0034] In the above scheme, there are two vertical grooves arranged up and down and an inclined groove between the two on the second limiting groove 802, and the inclined groove is inclined from top to bottom toward the direction close to the punching rod 3. The second elastic element 803 is a hard rubber ring. The fixed connection area between the second elastic element 803 and the movable frame 701 is the area close to the punching rod 3, which is used to enable the local relative movement between the second elastic element 803 and the movable frame 701. In the process when the punching rod 3 just starts to move downward, the punching rod 3 and the movable frame 701 slide relative to the second elastic element 803. When the boss on the upper side of the punching rod 3 moves downward to contact with the second elastic element 803, the boss on the upper side of the punching rod 3 drives the second elastic element 803 and the movable frame 701 to move downward together, and the first protrusion 805 slides in the vertical groove on the upper side of the second limiting groove 802. At this time, the punching rod 3 is not in contact with the blocking member 5 and the blocking member 5 is in close contact with the shell 4 (the blocking member 5 is in close contact with the shell 4). The first elastic element 703 is compressed until the stamping rod 3 contacts the blocking piece 5 and moves downward together. When the first protrusion 805 enters the inclined groove on the second limiting groove 802, the first protrusion 805 is limited by the inclined groove on the second limiting groove 802 and starts to drive the limiting frame 804 to move toward the direction close to the stamping rod 3. The limiting frame 804 starts to squeeze the second elastic element 803. The second elastic element 803 is axially deformed and squeezes the movable frame 701 downward. The movable frame 701 moves downward relative to the stamping rod 3, so that the blocking piece 5 is separated from the contact with the stamping rod 3 (in this process, the stamping rod 3 and the blocking piece 5 are both in a sealed contact state with the shell 4), so as to prevent the subsequent blocking piece 5 from sliding relative to the stamping rod 3 when it moves horizontally, thereby causing wear on the punching area of ​​the stamping rod 3 and reducing the punching quality of the photo frame 101.

[0035] like Figure 8 and Fig. 9 As shown, it also includes: a third elastic element 901, which is fixedly connected to the sealing member 5, and the side of the sealing member 5 close to the punching rod 3 is a concave surface, which is spherical and is used to accumulate cooling medium. The third elastic element 901 is initially in a compressed state and is used to fit with the shell 4. The shell 4 is provided with a channel 902, and a fourth elastic element 903 is provided in the channel 902. The fourth elastic element 903 is provided with a through hole, and the fourth elastic element 903 is initially in a compressed state and blocks the channel 902. The shell 4 is provided with an annular recess 904; a pressure component is arranged on the frame 1, and is used to pressurize the cooling medium in the shell 4.

[0036] In the above scheme, the third elastic element 901 is a rubber sleeve, which is used to fit tightly with the shell 4. The concave surface on the upper side of the sealing member 5 is a spherical arc surface, which is used to accumulate cooling medium, so that the cooling medium adheres to the lower side of the punching rod 3, thereby providing lubrication and cooling for the subsequent punching process. The fourth elastic element 903 is made of elastic rubber. During the downward movement of the movable frame 701 relative to the punching rod 3 (at this time, the gap generated between the punching rod 3 and the sealing member 5 is located in the annular recess 904), the cooling medium in the shell 4 is transferred slightly to the annular recess 904 through the pressure component, so as to arrange the cooling medium in the punching area of ​​the punching rod 3, so as to provide lubrication and cooling for the subsequent punching, thereby reducing the friction between the punching rod 3 and the photo frame 101 during the punching process, reducing the energy consumption during the punching process, and making the punching process smoother, reducing the generation of burrs, and improving the punching quality.

[0037] like Figure 7 and Figure 8 As shown, the pressure-applying assembly includes: a third limiting member 1001, the third limiting member 1001 is provided with a third limiting groove 1002, the limiting frame 804 is provided with a second protrusion 1003, the second protrusion 1003 is used to extrude the third limiting groove 1002, and the third limiting member 1001 is provided with a fourth limiting groove 1004; an extrusion member 1005, which is slidably connected to the shell 4, and the fourth limiting groove 1004 is used to limit the extrusion member 1005.

[0038] In the above scheme, the third limiting groove 1002 is a vertical groove, and there are multiple contact points between the second protrusion 1003 and the third limiting member 1001, which are used to improve the stability of the second protrusion 1003 in the process of driving the third limiting member 1001 together. In the process of the limiting frame 804 moving toward the punching rod 3, the limiting frame 804 drives the second protrusion 1003 to move together, and the second protrusion 1003 drives the third limiting member 1001 to move together. The fourth limiting groove 1004 extrude the extrusion member 1005, and the extrusion member 1005 moves along the shell 4. It slides downward and squeezes the cooling medium in the shell 4, the pressure of the cooling medium in the shell 4 increases, and then the cooling medium with a certain pressure passes through the channel 902, overcomes the elastic force of the fourth elastic element 903 itself, and enters the annular recess 904 through the through hole thereon, thereby applying the cooling medium to the stamping rod 3 (at this time, the fourth elastic element 903 is located at the lower part of the annular recess 904 and is in contact with the shell 4, and the stamping rod 3 is located in the recess 904). During the process, the external cooling medium storage device continuously replenishes the cooling medium into the shell 4.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photo frame punching device with a positioning mechanism, characterized in that: Included are: A frame body (1), the frame body (1) being provided with a groove for limiting the position of the photo frame member (101), and the frame body (1) being provided with a hydraulic push rod (2); A punching rod (3) fixedly connected to the telescopic end of the hydraulic push rod (2); A shell (4) is fixedly connected to the frame (1), the shell (4) is filled with a cooling medium, and the shell (4) is slidably connected to the punching rod (3); A blocking member (5) is slidably connected to the housing (4), and the punching rod (3) is used to press the blocking member (5); two positioning mechanisms arranged in mirror image, both provided on the frame (1) and used for positioning the photo frame member (101); A blocking mechanism, arranged on the punching rod (3) and used for blocking the shell (4); The positioning mechanism comprises: A positioning block (601) is slidably connected to the frame body (1), and the positioning block (601) is used to position and clamp the photo frame member (101); A mounting rod (602) slidably connected to the frame (1); A telescopic rod (603) is hinged between the positioning block (601) and the mounting rod (602); The blocking mechanism comprises: A movable frame (701) is arranged on the punching rod (3), the punching rod (3) being provided with bosses arranged at intervals, the bosses being used to limit the position of the movable frame (701); An intermediate frame (702) is slidably connected to the movable frame (701); the mounting rod (602) is fixedly connected to the intermediate frame (702); the intermediate frame (702) is slidably connected to the blocking member (5); and a first elastic element (703) is fixedly connected between the intermediate frame (702) and the movable frame (701); A first limiting member (704) is fixedly connected to the frame (1), the first limiting member (704) being provided with a first limiting groove (705), the first limiting groove (705) being used to limit the blocking member (5); The first limiting groove (705) is composed of a vertical groove and an inclined groove connected together. The first limiting groove (705) has two vertical grooves and an inclined groove between the two. The inclined groove gradually inclines downward from left to right, and is used to enable the blocking member (5) and the punching rod (3) to move relative to each other in the horizontal direction.

2. A photo frame punching device with a positioning mechanism according to claim 1, characterized in that: Also included are: A second limiting member (801) is fixedly connected to the frame body (1); a gap exists between the punching rod (3) and the blocking member (5); the movable frame (701) is slidably connected to the punching rod (3); the second limiting member (801) is provided with a second limiting groove (802); the punching rod (3) is slidably connected to a second elastic element (803); and the second elastic element (803) is fixedly connected to the movable frame (701); A limiting frame (804) is fixedly connected to the second elastic element (803); one of the bosses on the punching rod (3) and the movable frame (701) both limit the limiting frame (804); the limiting frame (804) is provided with a first protrusion (805); and the second limiting groove (802) is used to limit the first protrusion (805).

3. A photo frame punching device with a positioning mechanism according to claim 2, characterized in that: The distance between the bosses on the punching rod (3) is greater than the sum of the thickness of the moving frame (701) and the thickness of the second elastic element (803).

4. A photo frame punching device with a positioning mechanism according to claim 2, characterized in that: The second limiting groove (802) is composed of a vertical groove and an inclined groove connected together, and is used to enable the limiting frame (804) to press the second elastic element (803).

5. A photo frame punching device with a positioning mechanism according to claim 2, characterized in that: Also included are: a third elastic element (901) fixedly connected to the blocking member (5); the third elastic element (901) is initially in a compressed state and is used to fit with the housing (4); the housing (4) is provided with a channel (902); a fourth elastic element (903) is provided in the channel (902); the fourth elastic element (903) is provided with a through hole, and the fourth elastic element (903) is initially in a compressed state and blocks the channel (902); the housing (4) is provided with an annular recess (904); A pressure component is arranged on the frame (1) and is used to pressurize the cooling medium in the shell (4).

6. A photo frame punching device with a positioning mechanism according to claim 5, characterized in that: The pressure applying component comprises: a third limiting member (1001), the third limiting member (1001) being provided with a third limiting groove (1002), the limiting frame (804) being provided with a second protrusion (1003), the second protrusion (1003) being used for pressing the third limiting groove (1002), and the third limiting member (1001) being provided with a fourth limiting groove (1004); The extrusion piece (1005) is slidably connected to the shell (4), and the fourth limiting groove (1004) is used to limit the extrusion piece (1005).

7. A photo frame punching device with a positioning mechanism according to claim 5, characterized in that: The side of the sealing member (5) close to the punching rod (3) is a concave surface, which is spherical and used for storing cooling medium.

Images