Seal clamp and automatic stamping device

Abstract

The utility model provides a seal fixture and automatic stamping device, seal fixture includes mounting plate, clamping subassembly and first elastic piece, the clamping subassembly has pressure plate, clamping unit and locking screw, when used, place the seal in the holding groove of clamping unit, utilize the locking screw to lock and fix the seal, and the first elastic piece is fixed in the holding groove of clamping unit. And then the clamping unit is pushed into the clamping groove of the pressing plate in the forming direction of the clamping groove, so that the clamping unit is fixed to the pressing plate. During stamping, the pressing plate drives the clamping unit and the stamp to move downwards for stamping. The first elastic piece is arranged on the guide rod and can drive the clamping unit to reset after stamping is finished. According to the utility model, the clamping unit and the locking screw are adopted to fix the seal, so that the seal clamping device can be matched with a self-inking seal, a photosensitive seal, a common seal and other types of seals, and the seal is convenient and fast to replace. In the stamping process, the pressing plate moves up and down along the guide rod, can automatically reset after stamping is finished, can be matched with large-stroke stamps such as ink returning stamps, and is high in product universality and wide in application range.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping, and in particular relates to a stamp clamp and an automatic stamping device. Background Art

[0002] Companies and individuals often use seals in the course of their normal business management activities. Seals can be divided into company seals, contract seals, financial seals, legal representative seals, etc. according to their use, and can be divided into ink-returning seals, photosensitive seals, etc. according to their type. In order to improve work efficiency, the existing technology includes seal control instruments, automatic stamping devices, etc., which are used for seal control and stamping to replace manual stamping. Such automatic equipment generally uses fixed tooling to clamp and fix the seal. Due to the variety of shapes and stamping methods of the above-mentioned types of seals, current stamping equipment is difficult to be compatible with multiple seals, and it is inconvenient to operate when replacing seals, and it is easy to cause damage to the seal. Utility Model Content

[0003] The utility model provides a seal clamp and an automatic stamping device, aiming to solve the problems in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] In a first aspect, the present invention provides a seal holder, comprising:

[0006] A mounting plate is provided with a guide rod in a vertical direction;

[0007] A clamping assembly comprising a pressing plate, a clamping unit, and a locking screw; the pressing plate is slidably engaged with the guide rod; a slot is formed on the lower surface of the pressing plate, and the slot passes through one side of the pressing plate in a horizontal direction; the clamping unit is slidably engaged with the slot; the clamping unit has a receiving cavity with an open bottom for receiving a stamp; the locking screw is threadedly connected to a side wall of the clamping unit, and an end of the locking screw extends into the receiving cavity; and

[0008] The first elastic member is provided on the guide rod, the upper end of the first elastic member abuts against the pressure plate, the lower end of the first elastic member abuts against the lower part of the guide rod, and the first elastic member is configured with a first preload force to move the pressure plate upward.

[0009] In a possible implementation, the clamping assembly further includes a rubber sleeve, which is used to be sleeved on the outer circumference of the seal, and the locking screw abuts against the rubber sleeve.

[0010] In a possible implementation, a gripping portion is provided on a side wall of the clamping unit.

[0011] In a possible implementation, a plurality of guide rods are provided along the circumferential direction of the mounting plate, and a plurality of first elastic members and a plurality of clamping assemblies are provided corresponding to the guide rods.

[0012] In a possible implementation, a positioning bead is provided on the top inner wall of the slot, and a top surface of the clamping unit has a positioning groove adapted to be engaged with the positioning bead.

[0013] In a possible implementation, the clamping unit includes:

[0014] A connecting sleeve, the top of which is slidably engaged with the card slot, and the bottom of which is provided with an adjustment hole;

[0015] A seal sleeve, wherein the bottom of the seal sleeve has the accommodating cavity, the upper portion of the seal sleeve is threadedly engaged with the adjusting hole, and the locking screw is provided on the seal sleeve; and

[0016] The locking nut is threadably engaged with the outer periphery of the seal sleeve and abuts against the connecting sleeve.

[0017] Compared with the prior art, the seal holder provided by the present invention has the following beneficial effects:

[0018] The seal holder provided by the utility model includes a mounting plate, a clamping assembly, and a first elastic member. The clamping assembly includes a pressure plate, a clamping unit, and a locking screw. When in use, the seal is placed in the receiving slot of the clamping unit, the seal is locked and fixed using the locking screw, and then the clamping unit is pushed into the slot of the pressure plate along the opening direction of the slot to fix the clamping unit on the pressure plate. When stamping, the pressure plate is pressed downward by manual or automatic equipment, and the pressure plate drives the clamping unit and the seal to move downward together, completing the stamping action. The first elastic member is arranged on the guide rod and can drive the clamping unit to reset after the stamping is completed. The utility model uses a clamping unit and a locking screw to fix the seal, and can adapt to various types of seals such as ink-returning seals, photosensitive seals, and ordinary seals, and the seal can be replaced quickly and conveniently. When installing the seal, it is only necessary to ensure that its relative position with the clamping assembly is correct. After installation, it can be easily ensured that the seal surface information is always positive after stamping, which is convenient for users to use.

[0019] During the stamping process, the pressure plate moves up and down along the guide rod and can automatically reset after the stamping is completed. It can adapt to stamps with large strokes such as ink return stamps. The product has strong versatility and a wide range of adaptability.

[0020] In a second aspect, the present invention provides an automatic stamping device, comprising:

[0021] Mounting rack;

[0022] As in any of the above implementations of the seal fixture, the mounting plate is provided on the mounting frame; and

[0023] The lifting drive assembly is arranged on the mounting frame, and the lifting drive assembly has a lifting end that can move vertically, and the lifting end is located above the pressing plate.

[0024] In one possible implementation, the automatic stamping device further includes a rotary drive assembly. When a plurality of the clamping assemblies are provided along the circumferential direction of the mounting plate, the rotary drive assembly is used to drive the mounting plate to rotate around a vertical axis so that the plurality of the clamping assemblies are sequentially located below the lifting end.

[0025] In one possible implementation, the lifting drive assembly includes:

[0026] A driving motor is provided on the mounting frame;

[0027] A screw rod is vertically arranged on the mounting frame and is drivingly connected to the output shaft of the drive motor;

[0028] A nut seat, mated with the screw thread;

[0029] A pressing block is arranged below the nut seat;

[0030] a second elastic member, wherein the upper end of the second elastic member abuts against the nut seat, the lower end of the second elastic member abuts against the pressing block, the second elastic member is configured to have a second pre-tightening force that causes the pressing block to move downward, and the second pre-tightening force is greater than the first pre-tightening force; and

[0031] The guide column is arranged in the vertical direction, and the guide column is slidably matched with at least one of the mounting bracket and the nut seat. The upper part of the guide column has a stop portion that stops and limits at least one of the mounting bracket and the nut seat, and the lower part of the guide column is connected to the pressure block.

[0032] In a possible implementation, the automatic stamping device further includes an in-place detection component, and the in-place detection component includes:

[0033] The stamped optical coupler is arranged on the nut seat;

[0034] A stamping block is provided on the pressing block and corresponds to the stamping optical coupler above and below;

[0035] A reset optical coupler, provided on the mounting frame; and

[0036] The reset baffle is arranged on the nut seat and corresponds to the reset optical coupler in upper and lower positions.

[0037] The automatic stamping device provided by the utility model includes the stamp fixture as described in any of the above implementation modes, and automatically stamps and resets the stamping device by pressing the pressing plate downward through the lifting drive component, thereby improving the convenience and automation level of the stamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic structural diagram of a seal holder provided in an embodiment of the present utility model;

[0039] Figure 2 An internal cross-sectional view of a seal holder provided by an embodiment of the present utility model;

[0040] Figure 3 Schematic diagram of the assembly of the clamping component and the traditional seal;

[0041] Figure 4 An exploded view of the assembly of a clamping component and an ink return stamp;

[0042] Figure 5 It is a schematic diagram of the assembly of the clamping component and another ink return stamp;

[0043] Figure 6 A schematic structural diagram of an automatic stamping device provided in an embodiment of the present utility model;

[0044] Figure 7 for Figure 6 A partial enlarged view of part A in the middle;

[0045] Figure 8 for Figure 6 A partial enlarged view of part B in the middle;

[0046] Figure 9 An internal cross-sectional view of the automatic stamping device provided by an embodiment of the utility model;

[0047] Description of reference numerals:

[0048] 10. Mounting plate; 11. Guide rod; 20. Clamping assembly; 21. Pressing plate; 211. Positioning bead; 22. Clamping unit; 221. Connecting sleeve; 222. Stamp sleeve; 223. Locking nut; 224. Grip; 225. Positioning slot; 23. Locking screw; 24. Rubber sleeve; 30. First elastic member; 40. Mounting frame; 50. Lifting drive assembly; 51. Drive motor; 52. Screw rod; 53. Nut seat; 54. Pressing block; 55. Second elastic member; 56. Guide column; 60. Rotating drive assembly; 70. In-position detection assembly; 71. Stamp in-position optical coupler; 72. Stamp in-position baffle; 73. Reset optical coupler; 74. Reset baffle; 80. Stamp. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] It should be noted that when an element is referred to as being "fixed to," "fixed," or "fixedly disposed" on another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to," "connected to" another element, it may be directly connected to the other element or there may also be an intermediate element. When an element is referred to as being "set on," "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. "Multiple" refers to two or more. "At least one" refers to one or more. "Several" refers to one or more.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0052] Please also refer to Figures 1 to 9 , the seal holder and automatic stamping device provided by the embodiment of the utility model are described below.

[0053] See also Figures 1 to 5 In the first aspect, the embodiment of the present invention provides a seal clamp, comprising a mounting plate 10, a clamping assembly 20 and a first elastic member 30. The mounting plate 10 is provided with a guide rod 11 in the vertical direction; the clamping assembly 20 includes a pressing plate 21, a clamping unit 22 and a locking screw 23. The pressing plate 21 is slidably fitted in the guide rod 11. A card slot is provided on the lower surface of the pressing plate 21, and the card slot passes through one side of the pressing plate 21 in the horizontal direction; the clamping unit 22 is slidably fitted in the card slot. The clamping unit 22 has a receiving cavity with an opening at the bottom thereof, and the receiving cavity is used to receive a seal 80; the locking screw 23 is threadedly connected to the side wall of the clamping unit 22, and the end of the locking screw 23 extends into the receiving cavity; the first elastic member 30 is provided on the guide rod 11, the upper end of the first elastic member 30 abuts against the pressing plate 21, and the lower end of the first elastic member 30 abuts against the lower part of the guide rod 11. The first elastic member 30 is configured with a first preload force to move the pressing plate 21 upward.

[0054] Compared with the prior art, the seal holder provided by the embodiment of the utility model has the following beneficial effects:

[0055] The seal clamp provided by the embodiment of the present invention includes a mounting plate 10, a clamping assembly 20 and a first elastic member 30. The clamping assembly 20 has a pressure plate 21, a clamping unit 22 and a locking screw 23. When in use, the seal 80 is placed in the receiving groove of the clamping unit 22, and the seal 80 is locked and fixed by the locking screw 23. Then, the clamping unit 22 is pushed into the slot of the pressure plate 21 along the opening direction of the slot, so that the clamping unit 22 is fixed on the pressure plate 21 and can move up and down with the pressure plate 21. When stamping, the pressure plate 21 is pressed downward by manual or automatic equipment, and the pressure plate 21 drives the clamping unit 22 and the seal 80 to move downward together to complete the stamping action. The first elastic member 30 is arranged on the guide rod 11. The first elastic member 30 is compressed when stamping, and can drive the clamping unit 22 to reset after the stamping is completed.

[0056] When installing the seal 80, it is only necessary to ensure that the relative position between the seal and the clamping assembly 20 is correct. After installation, it can be easily ensured that the seal information is always positive after stamping, which is convenient for users to use.

[0057] The embodiment of the utility model uses a clamping unit 22 and a locking screw 23 to secure a stamp 80, and is adaptable to various types of stamps 80, such as ink-returning stamps, photosensitive stamps, and ordinary stamps, and allows for quick and easy replacement of stamps 80. During the stamping process, the pressing plate 21 moves up and down along the guide rod 11 and automatically returns to its original position after stamping is completed. This product is highly versatile and adaptable to a wide range of applications, such as ink-returning stamps.

[0058] The mounting plate 10 is a plate-shaped component, and the guide rod 11 can be fixed to the mounting plate 10 by screws, gluing, etc. The bottom of the guide rod 11 can be formed into a limiting protrusion by screws, and the limiting protrusion is used to abut against the lower end of the first elastic member 30 for limiting.

[0059] The clamping assembly 20 includes a pressure plate 21, a clamping unit 22, and a locking screw 23. The pressure plate 21 slidably engages one or more guide rods 11 and can move up and down along the guide rods 11. The clamping unit 22 is used to accommodate and secure the seal 80. To facilitate installation and removal of the seal 80, the clamping unit 22 is slidably disposed within a slot in the pressure plate 21.

[0060] Alternatively, the slot may be a dovetail slot or other similar shape, and the two side walls of the slot may be designed to be non-parallel, thereby preventing the clamping unit 22 from being installed upside down and achieving an error-proof design. The clamping unit 22 and the pressure plate 21 may be detachably connected by fastener connection, magnetic attraction, snap connection, ball bearing stopper, or the like.

[0061] The first elastic member 30 is disposed on the guide rod 11. The first elastic member 30 and the second elastic member 55 described below can be elastically deformable elements such as springs. During stamping, the first elastic member 30 is in a compressed state. After stamping, the first elastic member 30 drives the clamping unit 22 to reset.

[0062] See also Figure 2 and Figure 4 In some possible embodiments, the clamping assembly 20 also includes a rubber sleeve 24, which is used to be sleeved on the outer periphery of the seal 80. The locking screw 23 abuts against the rubber sleeve 24. The rubber sleeve 24 is made of rubber material. When in use, it is sleeved on the outer periphery of the seal 80 (such as a seal 80 with a plastic shell such as an ink-returning seal) to play a protective role and prevent the tightening force of the locking screw 23 from being too large, causing damage to the shell of the seal 80.

[0063] See also Figure 3 、 Figure 4 and Figure 5 In some possible embodiments, the side wall of the clamping unit 22 is provided with a gripping portion 224 to facilitate finger gripping. In addition, the side wall of the gripping portion 224 can also be designed as follows Figure 3 As shown in the cross, when the thumb and index finger simultaneously pinch the gripping portion 224, a force can be generated to pull out the clamping unit 22. This force can overcome the clamping force of the ball, making it easier for the user to remove the clamping unit 22 from the slot.

[0064] See also Figure 6 In some possible embodiments, multiple guide rods 11 are provided along the circumferential direction of the mounting plate 10, and multiple first elastic members 30 and clamping assemblies 20 are provided corresponding to the guide rods 11, and different types of seals 80 can be installed in the multiple clamping assemblies 20.

[0065] See also Figure 2 and Figure 3 In some possible embodiments, a positioning bead 211 is provided on the top inner wall of the card slot, and the top surface of the clamping unit 22 has a positioning groove 225 that is snap-fitted with the positioning bead 211. The positioning bead 211 is embedded in the top wall of the card slot through a plunger. The positioning bead 211 forms a protrusion on the inner wall of the card slot, which can be snap-fitted with the positioning groove 225 on the top of the clamping unit 22 to prevent the clamping unit 22 from falling off from the card slot.

[0066] See also Figures 1 to 3In some possible embodiments, the clamping unit 22 includes a connecting sleeve 221, a stamp sleeve 222, and a locking nut 223. The top of the connecting sleeve 221 slides in engagement with the slot, and an adjustment hole is defined at the bottom of the connecting sleeve 221. The stamp sleeve 222 has a receiving cavity at its bottom, and the top of the stamp sleeve 222 is threadedly engaged with the adjustment hole. The locking screw 23 is disposed on the stamp sleeve 222. The locking nut 223 is threadedly engaged with the outer circumference of the stamp sleeve 222 and abuts against the connecting sleeve 221.

[0067] In this embodiment, the connecting sleeve 221 and the seal sleeve 222 are threaded together. Rotating the seal sleeve 222 can adjust the direction and height of the seal 80. After the adjustment is completed, the seal sleeve 222 can be locked and fixed using the locking nut 223 to realize a double nut locking structure to prevent the seal sleeve 222 from loosening.

[0068] In a second aspect, the present invention provides an automatic stamping device comprising a mounting frame 40, a stamp fixture, and a lifting drive assembly 50. The mounting frame 40 is connected to the mounting frame 40 by a mounting plate 10 of the stamp fixture. The lifting drive assembly 50 is mounted on the mounting frame 40 and includes a vertically movable lifting end positioned above the pressing plate 21. The lifting drive element may be an electric telescopic rod, a pneumatic push rod, or the like.

[0069] See also Figure 6 and Figure 9 In some possible embodiments, the stamping device further includes a rotary drive assembly 60. When multiple clamping assemblies 20 are provided along the circumference of the mounting plate 10, the rotary drive assembly 60 is used to drive the stamp fixture to rotate about a vertical axis, so that the multiple clamping assemblies 20 are sequentially positioned below the lifting end. With this arrangement, an automatic stamping device can manage multiple stamps 80 and select the appropriate stamp 80 for stamping based on the user's needs.

[0070] Specifically, the rotation drive assembly 60 can be a motor, which realizes power transmission through gear transmission, belt transmission, etc., and drives the mounting plate 10 to rotate.

[0071] See also Figure 6 and Figure 9In some possible embodiments, the lifting drive assembly 50 includes a drive motor 51, a screw rod 52, a nut seat 53, a second elastic member 55, and a guide column 56. The drive motor 51 is arranged on the mounting frame 40; the screw rod 52 is arranged vertically on the mounting frame 40 and is in transmission connection with the output shaft of the drive motor 51; the nut seat 53 is threadedly engaged with the screw rod 52; the pressure block 54 is arranged below the nut seat 53; the upper end of the second elastic member 55 abuts against the nut seat 53, and the lower end of the second elastic member 55 abuts against the pressure block 54. The second elastic member 55 is configured with a second pre-tightening force that causes the pressure block 54 to move downward, and the second pre-tightening force is greater than the first pre-tightening force; the guide column 56 is arranged in the vertical direction, and the guide column 56 is slidably engaged with at least one of the mounting frame 40 and the nut seat 53. The upper portion of the guide column 56 has a stop portion that stops and limits at least one of the mounting frame 40 and the nut seat 53, and the lower portion of the guide column 56 is connected to the pressure block 54.

[0072] In this embodiment, a drive motor 51 is mounted on the mounting frame 40 via a fixing plate, and the output shaft of the drive motor 51 is connected to a screw rod 52, capable of driving the screw rod 52 to rotate. The rotation of the screw rod 52 drives the nut holder 53 to move up and down. A second elastic member 55 is provided between the nut holder 53 and the pressure block 54. The second elastic member 55 has a greater stiffness than the first elastic member 30, and the second preload force is greater than the first preload force. The pressure block 54 is connected to a guide post 56, which slidably cooperates with the mounting frame 40 and the nut holder 53 to guide the pressure block 54 as it moves up and down.

[0073] It should be noted that, considering that the stamping stroke of the ink return stamp is relatively large, the screw rod 52 should be designed to be longer to meet the stamping requirements of the large stroke.

[0074] See also Figure 7 and Figure 8 In some possible embodiments, the automatic stamping device further includes a stamping position detection assembly 70, which includes a stamping position optical coupler 71, a stamping position stopper 72, a reset optical coupler 73, and a reset stopper 74. The stamping position optical coupler 71 is disposed on the nut holder 53; the stamping position stopper 72 is disposed on the pressure block 54 and corresponds to the stamping position optical coupler 71 in the upper and lower directions; the reset optical coupler 73 is disposed on the mounting bracket 40; and the reset stopper 74 is disposed on the nut holder 53 and corresponds to the reset optical coupler 73 in the upper and lower directions.

[0075] The stamping optical coupler 71 and the stamping blocking piece 72 cooperate to detect whether the stamp 80 has moved into position, ensuring that the stamped mark is clear. The reset optical coupler 73 and the reset blocking piece 74 cooperate to detect whether the automatic stamping device has returned to its original position after stamping.

[0076] The working process of the automatic stamping device is described below:

[0077] When stamping, the main control unit receives the instruction to stamp and drives the motor 51 to start forward rotation, driving the nut 53, the second elastic member 55, and the pressure block 54 to move downward simultaneously. The pressure block 54 moves downward for a period of idle travel until it contacts the upper surface of the pressure plate 21. The screw rod 52 drives the nut 53 and the pressure block 54 to continue moving downward. Because the preload force of the second elastic member 55 is greater than that of the first elastic member 30, the softer first elastic member 30 is compressed first, and the pressure block 54 pushes the pressure plate 21, the clamping unit 22, and the seal 80 downward until the seal 80 contacts the document to be stamped.

[0078] The drive motor 51 continues to rotate forward, the second elastic member 55 is compressed, and the seal 80 is pressed hard on the document to be stamped, which can simulate the process of stamping with force, until the stamp-in-place baffle 72 reaches the position of the stamp-in-place optical coupler 71, generating a trigger signal, and the drive motor 51 starts to reverse and reset.

[0079] When the drive motor 51 reverses and resets, the nut 53, pressure block 54, guide post 56, and other components all move upward, and the second elastic member 55 and first elastic member 30 return to their initial positions. The second elastic member 55 resets first, and the stamp-in-place optical coupler 71 is freed from the stamp-in-place stop 72. The first elastic member 30 resets later, and the pressure block 54 then disengages from the upper surface of the pressure plate 21. The nut 53 continues to move upward until the reset optical coupler 73 is blocked by the reset stop 74, generating a trigger signal and stopping the drive motor 51.

[0080] It can be understood that the various parts in the above embodiments can be freely combined or deleted to form different combination embodiments. The specific contents of each combination embodiment will not be repeated here. After this description, it can be considered that the specification of the utility model has recorded various combination embodiments and can support different combination embodiments.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A seal holder, characterized in that: include: A mounting plate (10) is provided with a guide rod (11) in a vertical direction; A clamping assembly (20) comprises a pressing plate (21), a clamping unit (22) and a locking screw (23), wherein the pressing plate (21) is slidably fitted on the guide rod (11), a slot is provided on the lower surface of the pressing plate (21), and the slot passes through one side of the pressing plate (21) in a horizontal direction; the clamping unit (22) is slidably fitted in the slot, and the clamping unit (22) has a receiving cavity, the bottom of which is open, and the receiving cavity is used to receive the seal (80); the locking screw (23) is threadedly connected to the side wall of the clamping unit (22), and the end of the locking screw (23) extends into the receiving cavity; and A first elastic member (30) is provided on the guide rod (11), the upper end of the first elastic member (30) abuts against the pressure plate (21), the lower end of the first elastic member (30) abuts against the lower part of the guide rod (11), and the first elastic member (30) is configured with a first preload force for causing the pressure plate (21) to move upward.

2. The seal holder according to claim 1, characterized in that: The clamping assembly (20) further comprises a rubber sleeve (24), wherein the rubber sleeve (24) is used to be sleeved on the outer periphery of the seal (80), and the locking screw (23) abuts against the rubber sleeve (24).

3. The seal holder according to claim 1, characterized in that: A gripping portion (224) is provided on the side wall of the clamping unit (22).

4. The seal holder according to claim 1, characterized in that: A plurality of the guide rods (11) are provided along the circumferential direction of the mounting plate (10), and a plurality of the first elastic members (30) and the clamping assemblies (20) are provided corresponding to the guide rods (11).

5. The seal holder according to claim 1, characterized in that: A positioning bead (211) is provided on the top inner wall of the slot, and a positioning groove (225) adapted to be engaged with the positioning bead (211) is provided on the top surface of the clamping unit (22).

6. The seal holder according to claim 1, characterized in that: The clamping unit (22) comprises: A connecting sleeve (221), wherein the top of the connecting sleeve (221) is slidably engaged with the card slot, and an adjustment hole is provided at the bottom of the connecting sleeve (221); A seal sleeve (222), wherein the bottom of the seal sleeve (222) has the accommodating cavity, the upper portion of the seal sleeve (222) is threadedly engaged with the adjustment hole, and the locking screw (23) is provided on the seal sleeve (222); and The locking nut (223) is threadably engaged with the outer periphery of the seal sleeve (222) and abuts against the connecting sleeve (221).

7. An automatic stamping device, characterized in that: include: Mounting frame (40); The seal fixture according to any one of claims 1 to 6, wherein the mounting plate (10) is provided on the mounting frame (40); as well as A lifting drive assembly (50) is provided on the mounting frame (40), wherein the lifting drive assembly (50) has a lifting end capable of vertical movement, and the lifting end is located above the pressing plate (21).

8. The automatic stamping device according to claim 7, characterized in that: The automatic stamping device further comprises a rotation drive assembly (60). When a plurality of the clamping assemblies (20) are provided along the circumferential direction of the mounting plate (10), the rotation drive assembly (60) is used to drive the mounting plate (10) to rotate around a vertical axis so that the plurality of the clamping assemblies (20) are sequentially located below the lifting end.

9. The automatic stamping device according to claim 7, characterized in that: The lifting drive assembly (50) comprises: A driving motor (51) is provided on the mounting frame (40); A screw rod (52) is vertically arranged on the mounting frame (40) and is drivingly connected to the output shaft of the drive motor (51); A nut seat (53) threadably engaged with the screw rod (52); A pressing block (54) is provided below the nut seat (53), and the pressing block (54) forms the lifting end; a second elastic member (55), wherein the upper end of the second elastic member (55) abuts against the nut seat (53), and the lower end of the second elastic member (55) abuts against the pressing block (54), and the second elastic member (55) is configured with a second pre-tightening force for causing the pressing block (54) to move downward, and the second pre-tightening force is greater than the first pre-tightening force; and A guide post (56) is arranged in a vertical direction, and the guide post (56) is slidably matched with at least one of the mounting frame (40) and the nut seat (53). The upper part of the guide post (56) has a stop portion that stops and limits at least one of the mounting frame (40) and the nut seat (53), and the lower part of the guide post (56) is connected to the pressure block (54).

10. The automatic stamping device according to claim 9, characterized in that: The automatic stamping device further comprises an in-place detection component (70), wherein the in-place detection component (70) comprises: A stamped optical coupler (71) is provided on the nut holder (53); A stamping-in-place blocking piece (72) is provided on the pressing block (54) and corresponds to the stamping-in-place optical coupler (71) in upper and lower directions; A reset optical coupler (73) is provided on the mounting frame (40); and A reset baffle (74) is provided on the nut seat (53) and corresponds to the reset optical coupler (73) in upper and lower positions.

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