Double-station product character code engraving device

Abstract

The utility model discloses a double-station product character code engraving device which comprises an electric box, a protection frame is fixedly installed on the inner side of the bottom of the electric box, and a support is fixedly installed on the rear side of the inner side of the protection frame. When the engraving punch needs to be disassembled, assembled and replaced, the limiting rod is driven to be separated from the limiting sleeve by rotating the second threaded rod, and then the wedging block is driven to return to the original position under the action of the reset spring, so that the engraving punch is conveniently and rapidly disassembled, and when the engraving punch is installed, the engraving punch and the installation jig are clamped in a hole alignment mode, and therefore the engraving punch can be conveniently and rapidly disassembled. Then a second threaded rod is rotated, at the moment, a limiting rod is driven by the second threaded rod to move and be clamped with a limiting sleeve, and then a wedging block and a wedging groove are driven to be clamped and fixed, so that installation is completed, installation is convenient and rapid, and under the combined action of the second threaded rod and the wedging block, the fixing effect is improved; and influence on use due to looseness of the engraving punch in the use process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving codes, in particular to a device for engraving codes on double-station products. Background Art

[0002] Woodblock printing is an important invention of the ancient Chinese. It is a technique of printing by carving pictures and texts on the plate. Its development in China has gone through several stages from seals, ink rubbing stone tablets to woodblocks, and then to movable type. The plate material for woodblock printing is generally made of fine and solid wood, such as jujube wood and pear wood. Then the wood is sawed into pieces of wood, the words to be printed are written on thin paper, which is pasted on the wood board. Then, according to the strokes of each word, it is carved into positive text with a knife one stroke at a time, so that each stroke of the word stands out on the board.

[0003] Nowadays, many products need to be printed on the surface after production is completed, so as to facilitate labeling or product introduction. In the process of completing the engraving process through product engraving equipment, the characters are set at the end of the steel stamp punch. During operation, the traditional engraving equipment is prone to cause the steel stamp punch to fall off and shift, thereby affecting the engraving effect. At the same time, it is not conducive to rapid disassembly and replacement, resulting in a long time spent in the disassembly and replacement process. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the problem that in the process of completing the engraving of character codes by product engraving equipment, the character codes are all set at the end of the steel stamp punch. During the operation of the traditional character engraving equipment, the steel stamp punch is prone to fall off and shift, thereby affecting the engraving effect, and is not conducive to rapid disassembly and replacement, resulting in a long time spent in the disassembly and replacement process. The utility model provides the following technical solutions:

[0006] A double-station product code engraving device comprises an electrical box, a protective frame is fixedly installed on the inner side of the bottom of the electrical box, a bracket is fixedly installed on the rear side of the inner side of the protective frame, an adjustment mechanism is arranged on the top side of the bracket, a cylinder is arranged at the lower end of the adjustment mechanism, a mounting fixture is arranged at the bottom end of the cylinder driving end, an engraving punch is installed on the inner side of the mounting fixture by snap-fitting, a limiting mechanism is arranged on the inner side of the engraving punch, a fastening assembly is arranged on the front side of the mounting fixture, a positioning seat and a material sensor are fixedly installed on the bottom side of the inner side of the protective frame, and a two-hand start switch and a safety grating are arranged on the top side of the front side of the protective frame.

[0007] The beneficial effects of the utility model are: by rotating the No. 1 threaded rod, the mounting plate and the mounting fixture are driven to adjust the height, so that free adjustment according to product specifications is convenient and simple to use, and the application range is wide. At the same time, under the action of the No. 1 slide groove and the No. 1 slider, it is beneficial to improve the stability of the installation cylinder and the mounting fixture during the adjustment process.

[0008] The beneficial effect of the utility model is that during the process of pressing down and imprinting, extrusion is generated between the imprinting punch and the product, and the positioning column is driven to move downward. At this time, the buffer spring and the rubber seat are beneficial to the buffering and shock absorbing effect during the pressing process, thereby avoiding damage to the product due to excessive pressure.

[0009] The beneficial effects of the utility model are as follows: when the engraving punch needs to be disassembled and replaced, the limit rod is driven to disengage from the limit sleeve by rotating the No. 2 threaded rod, and then the engaging block is driven to return to its original position under the action of the reset spring, so that the engraving punch is conveniently and quickly removed; when installing the engraving punch, the engraving punch is engaged with the installation fixture in the hole, and then the No. 2 threaded rod is rotated. At this time, the limit rod is driven by the No. 2 threaded rod to move and engage with the limit sleeve, and then the engaging block is driven to engage and fix with the engaging groove, so that the installation is completed; the installation is convenient and quick, and the joint action of the No. 2 threaded rod and the engaging block is conducive to improving the fixing effect, so as to avoid the engraving punch from loosening during use and affecting the use.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] As a preferred solution of the double-station product code engraving device of the utility model, the adjusting mechanism includes a threaded sleeve, a No. 1 threaded rod and a mounting plate, the threaded sleeve is fixedly mounted on the front end of the top side of the bracket, the inner side of the threaded sleeve is connected to the No. 1 threaded rod through a thread, and the lower end of the No. 1 threaded rod is mounted with a mounting plate through a bearing, and a cylinder is fixedly mounted on the bottom side of the mounting plate.

[0012] The beneficial effect of adopting the above further scheme is that by rotating the No. 1 threaded rod, the mounting plate and the mounting fixture are driven to adjust the height, so that it is convenient to freely adjust according to product specifications. It is easy and simple to use and has a wide range of applications.

[0013] As a preferred solution of the double-station product code engraving device of the utility model, wherein: a No. 1 slide groove is opened on the front side of the bracket, a No. 1 slider is arranged on the inner side of the No. 1 slide groove, and a mounting plate is fixedly installed on the side of the No. 1 slider away from the No. 1 slide groove.

[0014] The beneficial effect of adopting the above further solution is that during the height adjustment process, the action of the No. 1 slide groove and the No. 1 slider is conducive to improving the stability of the device cylinder and the mounting fixture during the adjustment process.

[0015] As a preferred solution of the double-station product code engraving device described in the utility model, wherein: a groove is provided on the inner side of the installation jig, a fitting groove is provided on the rear side of the inner side of the groove, and a card slot is provided on the bottom side of the installation jig, and there are a total of four card slots, which are equidistantly arranged at the four corners of the bottom side of the installation jig.

[0016] The beneficial effect of adopting the above further scheme is that by positioning and engaging the printing punch with the groove and the card slot, it is convenient to fix and install it through the fastening assembly. Under the action of the groove and the card slot, the printing punch can be installed and accurately positioned, thereby improving the installation efficiency.

[0017] As a preferred solution of the double-station product code engraving device of the utility model, the limiting mechanism includes a through hole, a No. 2 slide groove, a No. 2 slider, a fitting block and a limiting sleeve, a through hole is opened on the positive side of the upper end of the engraving punch, a No. 2 slide groove is opened on the inner side of the through hole, a No. 2 slider is arranged on the inner side of the No. 2 slide groove, and a fitting block is fixedly installed on the opposite side of the No. 2 slider, the positive side of the fitting block is connected to the limiting sleeve through a rotating shaft, the size and shape of the fitting block match the fitting groove, and a reset spring is fixedly installed between the No. 2 slider and the No. 2 slide groove.

[0018] The beneficial effect of adopting the above further scheme is that the limiting rod is driven to disengage from the limiting sleeve by rotating the No. 2 threaded rod, and then the fitting block is driven to return to its original position under the action of the reset spring, thereby facilitating and quickly removing the engraving punch.

[0019] As a preferred solution of the double-station product code engraving device described in the utility model, the fastening assembly includes a threaded hole, a regulating valve, a No. 2 threaded rod and a limit rod, a threaded hole is opened on the front side of the mounting fixture, and the inner side of the threaded hole is connected to the No. 2 threaded rod through a thread, the front end of the No. 2 threaded rod is fixedly installed with a regulating valve, and the rear end of the No. 2 threaded rod is fixedly installed with a limit rod.

[0020] The beneficial effect of adopting the above further scheme is that when installing the engraving punch, the engraving punch is engaged with the installation fixture through the hole, and then the No. 2 threaded rod is rotated. At this time, the limit rod is driven by the No. 2 threaded rod to move and engage with the limit sleeve, and then the fitting block is driven to engage and fix with the fitting groove, thereby completing the installation, which is convenient and quick.

[0021] As a preferred solution of the double-station product code engraving device described in the utility model, a positioning column is movably installed on the top side of the positioning seat, a support plate is fixedly installed on the bottom end of the positioning column, a cavity is opened on the inner side of the positioning seat, and the support plate is arranged on the inner side of the cavity, four groups of buffer springs are fixed between the support plate and the cavity, and a rubber seat is fixedly installed on the opposite side of the support plate and the cavity.

[0022] The beneficial effect of adopting the above further scheme is that during the process of pressing down and imprinting, extrusion is generated between the imprinting punch and the product, and the positioning column is driven to move downward. At this time, the buffer spring and the rubber seat are beneficial to buffer and reduce shock during the pressing process, thereby avoiding damage to the product due to excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0024] Figure 1 It is a stereogram of the whole embodiment.

[0025] Figure 2 This is a left side cross-sectional view of the installation jig and the engraving punch of this embodiment.

[0026] Figure 3 For this embodiment Figure 2 Enlarged structure diagram of point A in the figure.

[0027] Figure 4 It is a three-dimensional diagram of the bracket of this embodiment.

[0028] Figure 5 It is a front cross-sectional view of the positioning seat of this embodiment.

[0029] In the figure; electrical box 1, protection frame 2, bracket 3, adjustment mechanism 4, cylinder 5, installation fixture 6, engraving punch 7, limit mechanism 8, fastening assembly 9, positioning seat 10, material sensor 11, two-hand start switch 12, safety grating 13;

[0030] Threaded sleeve 401, threaded rod No. 1 402, mounting plate 403, slide groove No. 1 301, slider No. 1 302, groove 601, fitting groove 602, slot 603, through hole 801, slide groove No. 2 802, slider No. 2 803, fitting block 804, limit sleeve 805, threaded hole 901, regulating valve 902, threaded rod No. 2 903, limit rod 904, positioning column 1001, support plate 1002, cavity 1003, buffer spring 1004. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0034] Reference Figures 1 to 5 , is an embodiment of the utility model, which provides a double-station product code engraving device, including an electrical box 1, a protective frame 2 is fixedly installed on the inner side of the bottom of the electrical box 1, a bracket 3 is fixedly installed on the rear side of the inner side of the protective frame 2, an adjusting mechanism 4 is arranged on the top side of the bracket 3, a cylinder 5 is arranged at the lower end of the adjusting mechanism 4, a mounting fixture 6 is arranged at the bottom end of the driving end of the cylinder 5, an engraving punch 7 is installed on the inner side of the mounting fixture 6 through snap-fitting, a limiting mechanism 8 is arranged on the inner side of the engraving punch 7, a fastening component 9 is arranged on the front side of the mounting fixture 6, a positioning seat 10 and a material sensor 11 are fixedly installed on the bottom side of the inner side of the protective frame 2, and a two-hand starting switch 12 and a safety grating 13 are arranged on the top side of the front side of the protective frame 2.

[0035] like Figure 1 As shown, the product is placed on the top side of the positioning seat 10, and then the device is started by starting the switch 12 with both hands. At this time, the two groups of cylinders 5 drive the two groups of installation fixtures 6 to move downward respectively, so that the engraving punch 7 on the bottom side of the installation fixture 6 is used for engraving.

[0036] Furthermore, the adjustment mechanism 4 includes a threaded sleeve 401, a No. 1 threaded rod 402 and a mounting plate 403. The threaded sleeve 401 is fixedly mounted on the front end of the top side of the bracket 3. The inner side of the threaded sleeve 401 is connected to the No. 1 threaded rod 402 through a thread, and the lower end of the No. 1 threaded rod 402 is mounted with the mounting plate 403 through a bearing, and the bottom side of the mounting plate 403 is fixedly mounted with the cylinder 5.

[0037] like Figure 1 , Figure 4 As shown, during use, by rotating the No. 1 threaded rod 402, the mounting plate 403 and the mounting fixture 6 are driven to adjust the height, so that it is convenient to freely adjust according to product specifications. It is easy to use and has a wide range of applications.

[0038] Furthermore, a first slide groove 301 is provided on the front side of the bracket 3 , a first slider 302 is provided inside the first slide groove 301 , and a mounting plate 403 is fixedly installed on a side of the first slider 302 away from the first slide groove 301 .

[0039] like Figure 4 As shown, during the height adjustment process, the action of the No. 1 slide groove 301 and the No. 1 slider 302 is beneficial to improving the stability of the installation cylinder 5 and the installation fixture 6 during the adjustment process.

[0040] Furthermore, a groove 601 is provided on the inner side of the installation jig 6, a fitting groove 602 is provided on the rear side of the inner side of the groove 601, and a card slot 603 is provided on the bottom side of the installation jig 6. There are four card slots 603 in total, which are equidistantly arranged at the four corners of the bottom side of the installation jig 6.

[0041] like Figure 2 As shown, during the installation of the imprinting punch 7, the imprinting punch 7 is positioned and engaged with the groove 601 and the slot 603, so as to facilitate fixed installation through the fastening assembly 9. The imprinting punch 7 can be installed and accurately positioned under the action of the groove 601 and the slot 603, thereby improving the installation efficiency.

[0042] Furthermore, the limiting mechanism 8 includes a through hole 801, a No. 2 slide groove 802, a No. 2 slider 803, a mating block 804 and a limiting sleeve 805. A through hole 801 is provided on the positive side of the upper end of the engraving punch 7, a No. 2 slide groove 802 is provided on the inner side of the through hole 801, a No. 2 slider 803 is provided on the inner side of the No. 2 slide groove 802, and a mating block 804 is fixedly installed on the opposite side of the No. 2 slider 803. The positive side of the mating block 804 is connected to the limiting sleeve 805 through a rotating shaft. The size and shape of the mating block 804 match the mating groove 602, and a return spring is fixedly installed between the No. 2 slider 803 and the No. 2 slide groove 802.

[0043] like Figure 3As shown, when the engraving punch 7 needs to be disassembled and replaced, the limiting rod 904 is driven to disengage from the limiting sleeve 805 by rotating the No. 2 threaded rod 903, and then the fitting block 804 is driven to return to its original position under the action of the reset spring, thereby facilitating and quickly removing the engraving punch 7.

[0044] Furthermore, the fastening assembly 9 includes a threaded hole 901, a regulating valve 902, a No. 2 threaded rod 903 and a limit rod 904. A threaded hole 901 is opened on the front side of the mounting fixture 6, and the No. 2 threaded rod 903 is connected to the inner side of the threaded hole 901 through a thread. The regulating valve 902 is fixedly installed at the front end of the No. 2 threaded rod 903, and the limit rod 904 is fixedly installed at the rear end of the No. 2 threaded rod 903.

[0045] like Figure 2 , Figure 3 As shown, when installing the engraving punch 7, the engraving punch 7 is engaged with the installation fixture 6 for hole engagement, and then the No. 2 threaded rod 903 is rotated. At this time, the No. 2 threaded rod 903 drives the limit rod 904 to move and engage with the limit sleeve 805, thereby driving the fitting block 804 to engage and fix with the fitting groove 602, thereby completing the installation, which is convenient and quick.

[0046] Furthermore, a positioning column 1001 is movably installed on the top side of the positioning seat 10, a support plate 1002 is fixedly installed on the bottom end of the positioning column 1001, a cavity 1003 is opened on the inner side of the positioning seat 10, and the support plate 1002 is arranged on the inner side of the cavity 1003, four groups of buffer springs 1004 are fixed between the support plate 1002 and the cavity 1003, and a rubber seat is fixedly installed on the opposite sides of the support plate 1002 and the cavity 1003.

[0047] like Figure 5 As shown, during the process of pressing down and imprinting, extrusion occurs between the imprinting punch 7 and the product, and drives the positioning column 1001 to move downward. At this time, the buffer spring 1004 and the rubber seat are beneficial to buffer and reduce shock during the pressing process, thereby avoiding damage to the product due to excessive pressure.

[0048] Working principle: When in use, the product is placed on the top side of the positioning seat 10, and then the device is started by starting the switch 12 with both hands. At this time, the two groups of cylinders 5 drive the two groups of mounting fixtures 6 to move downward respectively, so that the engraving punch 7 on the bottom side of the mounting fixture 6 is used for engraving, and in the process of use, the No. 1 threaded rod 402 is rotated to drive the mounting plate 403 and the mounting fixture 6 to adjust the height, so that it is convenient to adjust freely according to the product specifications. It is easy to use and has a wide range of applications. At the same time, under the action of the No. 1 slide groove 301 and the No. 1 slider 302, it is beneficial to improve the stability of the device cylinder 5 and the mounting fixture 6 during the adjustment process. Then, in the process of pressing down to engrave, the engraving punch 7 and the product are squeezed and drive the positioning column 1001 to move downward. At this time, under the action of the buffer spring 1004 and the rubber seat, it is beneficial to the downward The second threaded rod 903 is used to drive the limiting rod 904 to disengage the limiting sleeve 805, and then the engaging block 804 is driven to return to its original position under the action of the reset spring, so as to facilitate the quick removal of the marking punch 7. When installing the marking punch 7, the marking punch 7 is engaged with the installation fixture 6 in the hole, and then the second threaded rod 903 is rotated. At this time, the limiting rod 904 is driven by the second threaded rod 903 to move and engage with the limiting sleeve 805, thereby driving the engaging block 804 to engage and fix with the engaging groove 602, so as to complete the installation. The installation is convenient and quick, and the joint action of the second threaded rod 903 and the engaging block 804 is conducive to improving the fixing effect, so as to avoid the loosening of the marking punch 7 during use and affecting the use.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of a plurality of parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of the execution function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0051] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A double-station product code engraving device, characterized in that: The invention comprises an electric box (1), wherein a protective frame (2) is fixedly mounted on the inner side of the bottom of the electric box (1), a bracket (3) is fixedly mounted on the rear side of the inner side of the protective frame (2), an adjustment mechanism (4) is arranged on the top side of the bracket (3), a cylinder (5) is arranged at the lower end of the adjustment mechanism (4), a mounting fixture (6) is arranged at the bottom end of the driving end of the cylinder (5), a stamping punch (7) is mounted on the inner side of the mounting fixture (6) by snapping, a limiting mechanism (8) is arranged on the inner side of the stamping punch (7), a fastening assembly (9) is arranged on the front side of the mounting fixture (6), a positioning seat (10) and a material sensor (11) are fixedly mounted on the bottom side of the inner side of the protective frame (2), and a two-hand start switch (12) and a safety grating (13) are arranged on the top side of the front side of the protective frame (2).

2. The double-station product code engraving device according to claim 1, characterized in that: The adjusting mechanism (4) comprises a threaded sleeve (401), a first threaded rod (402) and a mounting plate (403); the threaded sleeve (401) is fixedly mounted on the front end of the top side of the bracket (3); the inner side of the threaded sleeve (401) is connected to the first threaded rod (402) via a thread; the lower end of the first threaded rod (402) is mounted with the mounting plate (403) via a bearing; and the bottom side of the mounting plate (403) is fixedly mounted with a cylinder (5).

3. The double-station product code engraving device according to claim 2, characterized in that: A first slide groove (301) is provided on the front side of the bracket (3), a first slider (302) is provided on the inner side of the first slide groove (301), and a mounting plate (403) is fixedly mounted on the side of the first slider (302) away from the first slide groove (301).

4. The double-station product code engraving device according to claim 1, characterized in that: A groove (601) is provided on the inner side of the installation jig (6), a fitting groove (602) is provided on the rear side of the inner side of the groove (601), and a clamping groove (603) is provided on the bottom side of the installation jig (6), and there are four clamping grooves (603) in total, which are arranged equidistantly at the four corners of the bottom side of the installation jig (6).

5. The double-station product code engraving device according to claim 4, characterized in that: The limiting mechanism (8) comprises a through hole (801), a No. 2 slide groove (802), a No. 2 slider (803), a fitting block (804) and a limiting sleeve (805); a through hole (801) is provided on the front side of the upper end of the engraving punch (7); a No. 2 slide groove (802) is provided on the inner side of the through hole (801); a No. 2 slider (803) is provided on the inner side of the No. 2 slide groove (802); a fitting block (804) is fixedly installed on the opposite side of the No. 2 slider (803); the front side of the fitting block (804) is connected to the limiting sleeve (805) via a rotating shaft; the size and shape of the fitting block (804) match the fitting groove (602); a return spring is fixedly installed between the No. 2 slider (803) and the No. 2 slide groove (802).

6. The double-station product code engraving device according to claim 1, characterized in that: The fastening assembly (9) comprises a threaded hole (901), a regulating valve (902), a second threaded rod (903) and a limiting rod (904); the threaded hole (901) is provided on the front side of the mounting fixture (6); the second threaded rod (903) is connected to the inner side of the threaded hole (901) via a thread; the regulating valve (902) is fixedly mounted on the front end of the second threaded rod (903); and the limiting rod (904) is fixedly mounted on the rear end of the second threaded rod (903).

7. The double-station product code engraving device according to claim 1, characterized in that: A positioning column (1001) is movably mounted on the top side of the positioning seat (10), a support plate (1002) is fixedly mounted on the bottom end of the positioning column (1001), a cavity (1003) is opened on the inner side of the positioning seat (10), and the support plate (1002) is arranged on the inner side of the cavity (1003), four groups of buffer springs (1004) are fixed between the support plate (1002) and the cavity (1003), and a rubber seat is fixedly mounted on the opposite side of the support plate (1002) and the cavity (1003).

Images