Clamp for clamping bottle opening mold

Abstract

The invention relates to the technical field of machining, in particular to a clamp for clamping a bottle opening mold, which comprises a connecting piece, a clamping table and a clamping piece, the clamping table is mounted on the connecting piece, a positioning lug boss and a clamping piece mounting table are arranged on the clamping table, and a concave arc positioning surface is formed on the edge of one side, facing the clamping piece mounting table, of the positioning lug boss; the clamping piece is installed on the clamping piece installation table in a sliding mode and suitable for sliding in the direction close to or away from the arc positioning face. According to the bottle opening mold clamp, clamping of the bottle opening mold is completed through the positioning protruding part and the clamping piece on the clamping table, the bottle opening mold clamp formed through assembling does not need to be large in size and occupied area, and large space and flexibility are provided for the actual use stroke of machining equipment. Moreover, by clamping the center of the inner wall and the outer cambered surface of the semi-annular bottleneck mold, the bottleneck mold clamp can meet the machining requirement of all bottleneck mold feature surfaces after one-time clamping is completed, and no excessive collision risk exists in the machining process.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a clamp for clamping a bottle mouth mould. Background Art

[0002] As an important component of the packaging industry, the bottle mouth mold is an important tool for producing bottle products. The bottle mouth mold fixture is a key tool to connect the processing equipment and the bottle mouth mold, which can realize the processing of the bottle mouth mold.

[0003] At present, flat-nose pliers are mainly used as clamps for bottle mouth molds. Arc grooves are designed at the flat-nose pliers of the clamps for positioning, which makes it easy to quickly put the bottle mouth mold into or take it out of the clamp manually. In addition, the flat-nose pliers clamps can lock the outer contour of bottle mouth molds of different specifications and sizes through self-centering jaws.

[0004] Although the current use of flat-nose clamps can solve the problem, there are some problems. For example, the height of the bottle mouth mold is basically between 40 and 90 mm, and its diameter is basically between 90 mm and 200 mm. In order to meet the clamping requirements of bottle mouth molds of all sizes, the corresponding flat-nose clamps have a larger volume and footprint, which results in a reduction in the actual use stroke of the processing equipment, an increase in the risk of collision, and cannot meet the processing requirements of all characteristic surfaces of the bottle mouth mold. Summary of the invention

[0005] The invention provides a clamp for clamping a bottle mouth mold, which is used to solve the defects that the flat-mouth clamp used in processing the bottle mouth mold in the prior art has a large body size and occupies a large area, resulting in a reduced actual use stroke of the processing equipment and a high collision risk.

[0006] The present invention provides a clamp for clamping a bottle mouth mold, comprising a connecting piece, a clamping platform and a clamping piece, wherein the connecting piece is used to connect a machine tool; the clamping platform is installed on the connecting piece, a positioning protrusion and a clamping piece mounting platform are arranged on the clamping platform, and the positioning protrusion forms an inwardly concave arc positioning surface toward a side edge of the clamping piece mounting platform; the clamping piece is slidably installed on the clamping piece mounting platform and is suitable for sliding in a direction close to or away from the arc positioning surface.

[0007] According to a clamp for clamping a bottle mouth mold provided by the present invention, the clamp mounting platform is a T-shaped platform, the clamp is formed with a T-shaped slot that cooperates with the clamp mounting platform, and the clamp is slidably mounted with the clamp mounting platform through the T-shaped slot.

[0008] According to a clamp for clamping a bottle mouth mold provided by the present invention, the end of the clamping member facing the arc positioning surface forms an arc clamping surface, which is suitable for clamping the bottle mouth mold through the arc clamping surface and the arc positioning surface.

[0009] According to a clamp for clamping a bottle mouth mold provided by the present invention, the clamp mounting platform is provided with a threaded through hole along the sliding direction of the clamp, the threaded through hole is penetrated by an adjusting bolt, and the head of the adjusting bolt is suitable for pushing the clamp.

[0010] According to a clamp for clamping a bottle mouth mold provided by the present invention, a push block is provided on the side of the clamping component facing away from the circular arc positioning surface, a circular through hole is provided on the push block, the adjusting bolt passes through the circular through hole and is connected to the threaded through hole so that the push block is abutted against the side of the clamping component facing away from the circular arc positioning surface.

[0011] According to a clamp for clamping a bottle mouth mold provided by the present invention, an arc groove is arranged on the clamping platform at a position corresponding to the side of the bottom of the arc positioning surface.

[0012] According to a clamp for clamping a bottle mouth mold provided by the present invention, the clamping table is a truncated cone structure, the arc positioning surface and the arc groove form a positioning area of ​​the bottle mouth mold on the clamping table, the arc positioning surface and the arc groove have the same arc center position and deviate from the center of the clamping table, so that the bottle mouth mold in the positioning area is eccentrically positioned on the clamping table.

[0013] According to a clamp for clamping a bottle mouth mold provided by the present invention, the positioning protrusion is half-moon-shaped, and both end portions of the positioning protrusion and the corresponding portion of the clamping table surface are provided with air avoidance gaps.

[0014] According to a clamp for clamping a bottle mouth mold provided by the present invention, a plurality of first positioning pin holes are provided on the end surface of the clamping platform facing away from the positioning protrusion and the clamp mounting platform, a plurality of second positioning pin holes are provided on the connecting member, the plurality of first positioning pin holes and the plurality of second positioning pin holes are arranged in one-to-one correspondence, and pins are inserted into the first positioning pin holes and the corresponding second positioning pin holes to position and assemble the connecting member and the clamping platform.

[0015] According to a clamp for clamping a bottle mouth mold provided by the present invention, a plurality of first threaded holes are provided on the end surface of the clamping platform facing away from the positioning protrusion and the clamp mounting platform, a plurality of second threaded holes are provided on the connecting member, the plurality of first threaded holes and the plurality of second threaded holes are arranged in one-to-one correspondence, and bolts are passed through the first threaded holes and the corresponding second threaded holes to connect and fix the connecting member and the clamping platform.

[0016] The clamp for clamping the bottle mouth mold provided by the present invention completes the clamping of the bottle mouth mold through the positioning protrusion and the clamping piece on the clamping platform, the positioning protrusion forms a concave arc positioning surface towards the edge of one side of the clamping piece mounting platform, the bottle mouth mold with a semi-annular structure is fitted and installed with the arc positioning surface to form positioning, and then the clamping piece is adjusted to slide along the direction close to the arc positioning surface to form the clamping of the bottle mouth mold. The bottle mouth mold clamp assembled by the present invention does not require a large volume and floor space, and provides a lot of space and flexibility for the actual use of the processing equipment. Moreover, the bottle mouth mold clamp of the present invention can meet the processing requirements of all the characteristic surfaces of the bottle mouth mold after one clamping is completed by clamping the inner wall center and the outer arc surface of the semi-annular bottle mouth mold, and there will not be too much collision risk during the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The utility model is a schematic diagram of the isometric structure of the clamp for clamping the bottle mouth mold provided by the present invention.

[0019] Figure 2 The figure is a schematic diagram of the exploded structure of the clamp for clamping the bottle mouth mold provided by the present invention.

[0020] Figure 3 It is a structural schematic diagram of the clamping table provided by the present invention.

[0021] Figure 4 It is a schematic structural diagram of the clamping member provided by the present invention.

[0022] Figure numerals: 1, connecting part; 2, clamping platform; 21, positioning protrusion; 22, clamping part mounting platform; 221, threaded through hole; 23, arc positioning surface; 24, arc groove; 3, clamping part; 31, T-slot; 32, arc clamping surface; 4, adjusting bolt; 5, push block; 51, round through hole; 6, air avoidance gap. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0028] Combine the following Figures 1 to 4The specific structure and working process of the clamp for clamping a bottle mouth mold of the present invention are described.

[0029] One embodiment of the present invention provides a clamp for clamping a bottle mouth mold, Figure 1 and Figure 2 As shown, the clamp for clamping the bottle mouth mold includes a connecting member 1, a clamping platform 2 and a clamping member 3, wherein the connecting member 1 is used to connect to the machine tool; the clamping platform 2 is installed on the connecting member 1, and a positioning protrusion 21 and a clamping member mounting platform 22 are provided on the clamping platform 2, and the positioning protrusion 21 forms a concave arc positioning surface 23 toward one side edge of the clamping member mounting platform 22; the clamping member 3 is slidably installed on the clamping member mounting platform 22, and is suitable for sliding along the direction approaching or away from the arc positioning surface 23.

[0030] The clamp for clamping the bottle mouth mold of the present embodiment completes the clamping of the bottle mouth mold through the positioning protrusion 21 on the clamping platform 2 and the clamping piece 3. Specifically, the bottle mouth mold is generally two semi-annular structures, and a semi-annular surface with a consistent shape is formed under each semi-annular structure before machining by machine tool, and this surface can be used as a clamping reference surface. In the present embodiment, the positioning protrusion 21 forms a concave arc positioning surface 23 toward the edge of one side of the clamp mounting platform 22, and the bottle mouth mold of the semi-annular structure is fitted and installed with the arc positioning surface 23 to form a positioning, and then the clamping piece 3 is adjusted to slide in the direction close to the arc positioning surface 23, and the bottle mouth mold is clamped by the clamping piece 3 and the arc positioning surface 23 of the positioning protrusion 21, thereby completing the clamping of the bottle mouth mold.

[0031] It is understandable that when the conventional flat-nose pliers clamp the bottle mouth mold, the two end faces of the semi-circular bottle mouth mold are clamped by the two jaws of the flat-nose pliers, and the outer arc surface of the semi-circular bottle mouth mold is positioned and fixed by the arc groove on the jaws. Therefore, to achieve the clamping of the bottle mouth mold, the height of the bottle mouth mold determines the distance between the two jaws of the flat-nose pliers. Therefore, for some larger bottle mouth molds, larger flat-nose pliers are required. In this embodiment, when the clamping member 3 and the arc positioning surface 23 of the positioning protrusion 21 clamp the bottle mouth mold, they are respectively applied to the inner wall center and the outer arc surface of the semi-circular bottle mouth mold. The distance between the clamping member 3 and the arc positioning surface 23 only needs to be greater than the wall thickness of the bottle mouth mold. Therefore, the assembled bottle mouth mold clamp does not need a large volume and floor space, which provides a lot of space and flexibility for the actual use of the processing equipment. Moreover, the bottle mouth mold clamp of this embodiment can meet the processing requirements of all characteristic surfaces of the bottle mouth mold after one clamping by clamping the inner wall center and outer arc surface of the semi-circular bottle mouth mold, and there will not be too much collision risk during the processing.

[0032] In some embodiments of the clamp for clamping the bottle mouth mold of the present invention, refer again to Figure 2As shown, the fixture mounting platform 22 is a T-shaped platform, and the fixture 3 is formed with a T-shaped slot 31 (such as Figure 4 As shown), the clamp 3 is installed in a sliding fit with the clamp mounting platform 22 through a T-slot 31.

[0033] See also Figure 3 As shown, the clamp mounting platform 22 is generally arranged toward the center of the arc positioning surface 23, and the T-shaped clamp mounting platform 22 provides a T-shaped slide rail for the clamp 3. The clamp 3 is mounted on the clamp mounting platform 22 through the T-slot 31. The relative sliding of the T-slot 31 and the T-stage enables the clamp 3 to slide in the direction close to or away from the arc positioning surface 23. During clamping, the outer arc surface of the bottle mouth mold is fitted with the arc positioning surface 23 on the clamp mounting platform 2, and then the clamp 3 on the clamp mounting platform 22 is moved to slide toward the arc positioning surface 23, and finally acts on the inner wall of the bottle mouth mold, and cooperates with the arc positioning surface 23 to clamp the bottle mouth mold; after the processing is completed, the clamp 3 on the clamp mounting platform 22 is moved to slide away from the arc positioning surface 23, and the bottle mouth mold is released to be taken out.

[0034] When the bottle mouth mold is clamped by the arc positioning surface 23 of the positioning protrusion 21 and the clamping member 3, the clamping force should be evenly distributed on the contact surface between the bottle mouth mold and the clamp as much as possible. In some embodiments of the clamp for clamping the bottle mouth mold of the present invention, the end of the clamping member 3 facing the arc positioning surface 23 forms an arc clamping surface 32, which is suitable for clamping the bottle mouth mold through the arc clamping surface 32 and the arc positioning surface 23. It can be understood that in this embodiment, when clamping the bottle mouth mold, the contact surface between the bottle mouth mold and the clamp is the arc clamping surface 32 and the arc positioning surface 23, and the arc clamping surface 32 and the arc positioning surface 23 are both arc surface structures. When clamping the semi-annular bottle mouth mold, the two arc surfaces are in contact with the outer arc surface and the inner wall surface of the bottle mouth mold respectively, thereby ensuring the symmetry and uniformity of the contact points, preventing the workpiece deformation, surface damage and other adverse consequences caused by excessive local clamping force, and at the same time, it can also improve the overall fixing effect of the clamp on the bottle mouth mold.

[0035] In order to adapt to the needs of different workpieces and different processing scenarios, the clamp should have the ability to adjust the clamping force. In some embodiments of the clamp for clamping the bottle mouth mold of the present invention, the clamp mounting platform 22 is provided with a threaded through hole 221 along the sliding direction of the clamp 3, and the threaded through hole 221 is penetrated by an adjusting bolt 4, and the head of the adjusting bolt 4 is suitable for pushing the clamp 3.

[0036] It can be understood that the adjusting bolt 4 can rotate in the threaded through hole 221 of the clamp mounting platform 22, and then the adjusting bolt 4 can be moved along the axial direction of the adjusting bolt 4 relative to the fixed clamp mounting platform 22. When the workpiece needs to be clamped, the adjusting bolt 4 is screwed into the threaded through hole 221, and the adjusting bolt 4 moves toward the arc positioning surface 23 in its axial direction. The inner end of the head of the adjusting bolt 4 acts on the clamp 3, pushing the clamp 3 to move toward the arc positioning surface 23, thereby clamping the workpiece. Similarly, the adjusting bolt 4 moves in the opposite direction to loosen the workpiece. The clamping force can be flexibly adjusted by adjusting the tightening degree of the adjusting bolt 4.

[0037] Further, see Figure 2 As shown, in some specific examples of the clamp for clamping the bottle mouth mold of the present invention, a push block 5 is provided on the side of the clamp 3 facing away from the arc positioning surface 23, and a round through hole 51 is provided on the push block 5. The adjusting bolt 4 passes through the round through hole 51 and is connected to the threaded through hole 221 to abut the push block 5 against the side of the clamp 3 facing away from the arc positioning surface 23.

[0038] It can be understood that since the clamp 3 is provided with a T-slot 31, the inner end of the head of the adjusting bolt 4 is not easy to act on the side of the clamp 3 facing away from the arc positioning surface 23. In this example, a push block 5 is provided on the side of the clamp 3 facing away from the arc positioning surface 23. The adjusting bolt 4 passes through the circular through hole 51 of the push block 5 and is connected to the threaded through hole 221. When the adjusting bolt 4 moves toward the arc positioning surface 23 in its axial direction, the inner end of the head of the adjusting bolt 4 pushes the push block 5, so that the push block 5 pushes the clamp 3 to move toward the arc positioning surface 23.

[0039] In some embodiments of the clamp for clamping the bottle mouth mold of the present invention, see Figure 3As shown, an arc groove 24 is provided on the clamping table 2 at a position corresponding to the side of the bottom of the arc positioning surface 23. It can be understood that the arc groove 24 can cooperate with the arc positioning surface 23 to form a positioning for the bottle mouth mold. The arc positioning surface 23 is a contoured arc surface specially designed for the specific characteristic surface of the bottle mouth mold (i.e., the clamping reference surface that has been turned). It can not only ensure that the bottle mouth mold is quickly and accurately placed in place, but also is suitable for bottle mouth molds of different sizes because of its contoured design. The arc groove 24 provided on the side of the bottom of the arc positioning surface 23 further enhances the positioning effect of the clamp on the bottle mouth mold. When the bottle mouth mold is placed in the clamp, the outer edge of the bottle mouth mold will be embedded in the arc groove 24, which limits the radial and axial movement of the mold, thereby ensuring stability during the processing. When clamping the bottle mouth mold, the worker only needs to put the bottle mouth mold into the clamp, let it fall naturally into the arc groove 24, and fit the arc positioning surface 23 to complete the positioning. No additional adjustment is required, which improves work efficiency. The combination of the arc groove 24 and the arc positioning surface 23 provides more precise positioning for the bottle mouth mold and reduces processing deviations caused by installation errors. By limiting the position of the bottle mouth mold by the arc groove 24, the workpiece can be prevented from being displaced or rotated due to force during processing, which helps to maintain processing quality.

[0040] In other embodiments of the clamp for clamping the bottle mouth mold of the present invention, refer again to Figure 1 As shown, the clamping table 2 is a truncated cone structure, and the arc positioning surface 23 and the arc groove 24 form a positioning area for the bottle mouth mold on the clamping table 2. The arc center positions of the arc positioning surface 23 and the arc groove 24 are the same and deviate from the center of the clamping table 2, so that the bottle mouth mold in the positioning area is eccentrically positioned on the clamping table 2.

[0041] It is understandable that, considering that the tool movement stroke of the processing equipment is long and the posture changes are complex, cumulative errors may occur. In this embodiment, the arc positioning surface 23 and the arc groove 24 are eccentrically designed with respect to the center of the clamping table 2. When clamping the bottle mouth mold, the bottle mouth mold in the positioning area is eccentrically positioned on the clamping table 2, that is, after clamping the bottle mouth mold, the processing feature surface of the bottle mouth mold is closer to the center of the turntable of the processing equipment, reducing the cumulative errors caused by the movement stroke and posture changes of the tool of the processing equipment. The processing feature surface is close to the center of the turntable. When CNC programming is performed to plan the tool path, the path for the tool to reach the processing part is often shorter. A shorter tool path means that the distance the tool moves during the processing is reduced, thereby saving processing time and improving processing efficiency.

[0042] In some other embodiments of the clamp for clamping the bottle mouth mold of the present invention, the positioning protrusion 21 is half-moon-shaped, and the two end portions of the positioning protrusion 21 and the corresponding clamping table 2 table portion are provided with air-avoiding notches 6. It can be understood that there may also be special processing feature surfaces at the two end positions of the specific feature surface of the bottle mouth mold (i.e., the clamping reference surface that has been turned). In order to ensure that all feature surfaces of the bottle mouth mold can be processed after the bottle mouth mold clamp of the present invention clamps the bottle mouth mold, and to improve the versatility of the clamp, this embodiment provides air-avoiding notches 6 at the two end portions of the positioning protrusion 21 and the corresponding clamping table 2 table portion. The air-avoiding notches 6 ensure that after the bottle mouth mold is clamped, there is an appropriate gap to process some special processing feature surfaces, avoid interference between the tool and the clamp during the processing, and the processing will not be hindered by the presence of the clamp, effectively reducing the potential risks in the processing process and ensuring the safety and stability of the processing.

[0043] Based on the structure of the clamp for clamping the bottle mouth mold in the above-mentioned several embodiments, in some examples, the end surface of the clamping platform 2 facing away from the positioning protrusion 21 and the clamping component mounting platform 22 is provided with a plurality of first positioning pin holes, and the connecting member 1 is provided with a plurality of second positioning pin holes, and the plurality of first positioning pin holes and the plurality of second positioning pin holes are arranged in a one-to-one correspondence, and pins are inserted into the first positioning pin holes and the corresponding second positioning pin holes to position and assemble the connecting member 1 and the clamping platform 2. The end surface of the clamping platform 2 facing away from the positioning protrusion 21 and the clamping component mounting platform 22 is provided with a plurality of first threaded holes, and the connecting member 1 is provided with a plurality of second threaded holes, and the plurality of first threaded holes and the plurality of second threaded holes are arranged in a one-to-one correspondence, and bolts are inserted into the first threaded holes and the corresponding second threaded holes to connect and fix the connecting member 1 and the clamping platform 2.

[0044] It is understandable that this example designs a detailed connection and positioning mechanism for the connector 1 and the clamping platform 2 to ensure accurate assembly and firm fixation between the clamping platform 2 and the connector 1. The initial positioning and assembly of the clamping platform 2 and the connector 1 is achieved by inserting the pin into the corresponding first positioning pin hole and the second positioning pin hole. The pin and the two positioning pin holes have a high matching accuracy, which can accurately determine the relative position of the clamping platform 2 and the connector 1, thereby ensuring the positioning accuracy of the fixture. By inserting the bolt into the corresponding first threaded hole and the second threaded hole, and tightening the nut or self-tapping bolt, the clamping platform 2 and the connector 1 are finally firmly connected and fixed. The assembly of the positioning pin hole and the pin can ensure that the relative position between the clamping platform 2 and the connector 1 is very accurate, which is conducive to ensuring the processing accuracy. The assembly of the threaded hole and the bolt provides a connection method with high mechanical strength, ensuring that the fixture will not loosen during the processing, thereby improving the stability of the overall structure.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clamp for clamping a bottle mouth mold, characterized in that: include: A connecting piece (1) for connecting to a machine tool; A clamping platform (2) is mounted on the connecting member (1), wherein a positioning protrusion (21) and a clamping member mounting platform (22) are provided on the clamping platform (2), and a concave arc positioning surface (23) is formed on one side edge of the positioning protrusion (21) facing the clamping member mounting platform (22); The clamping member (3) is slidably mounted on the clamping member mounting platform (22) and is suitable for sliding in a direction approaching or moving away from the circular arc positioning surface (23).

2. The clamp for clamping the bottle mouth mold according to claim 1, characterized in that: The clamping piece mounting platform (22) is a T-shaped platform, the clamping piece (3) is formed with a T-shaped slot (31) that matches the clamping piece mounting platform (22), and the clamping piece (3) is slidably mounted with the clamping piece mounting platform (22) via the T-shaped slot (31).

3. The clamp for clamping the bottle mouth mold according to claim 2, characterized in that: The end of the clamping member (3) facing the arc positioning surface (23) forms an arc clamping surface (32), which is suitable for clamping the bottle mouth mold through the arc clamping surface (32) and the arc positioning surface (23).

4. The clamp for clamping a bottle mouth mold according to claim 3, characterized in that: The clamp mounting platform (22) is provided with a threaded through hole (221) along the sliding direction of the clamp (3), and an adjusting bolt (4) is passed through the threaded through hole (221), and the head of the adjusting bolt (4) is suitable for pushing the clamp (3).

5. The clamp for clamping a bottle mouth mold according to claim 4, characterized in that: A push block (5) is provided on the side of the clamp (3) facing away from the circular arc positioning surface (23), and a round through hole (51) is provided on the push block (5). The adjusting bolt (4) passes through the round through hole (51) and is connected to the threaded through hole (221) so as to abut the push block (5) against the side of the clamp (3) facing away from the circular arc positioning surface (23).

6. The clamp for clamping a bottle mouth mold according to any one of claims 1 to 5, characterized in that: A circular arc groove (24) is provided on the clamping platform (2) at a position corresponding to the side of the bottom of the circular arc positioning surface (23).

7. The clamp for clamping a bottle mouth mold according to claim 6, characterized in that: The clamping table (2) is a truncated table structure, the arc positioning surface (23) and the arc groove (24) form a positioning area for the bottle mouth mold on the clamping table (2), the arc center positions of the arc positioning surface (23) and the arc groove (24) are the same and deviate from the center of the clamping table (2), so that the bottle mouth mold in the positioning area is eccentrically positioned on the clamping table (2).

8. The clamp for clamping a bottle mouth mold according to any one of claims 1 to 5, characterized in that: The positioning protrusion (21) is half-moon-shaped, and both ends of the positioning protrusion (21) and the corresponding surface of the clamping table (2) are provided with gaps (6).

9. The clamp for clamping a bottle mouth mold according to any one of claims 1 to 5, characterized in that: The end surface of the clamping platform (2) facing away from the positioning protrusion (21) and the clamping component mounting platform (22) is provided with a plurality of first positioning pin holes, and the connecting component (1) is provided with a plurality of second positioning pin holes, the plurality of first positioning pin holes and the plurality of second positioning pin holes are arranged in a one-to-one correspondence, and pins are inserted into the first positioning pin holes and the corresponding second positioning pin holes to position and assemble the connecting component (1) and the clamping platform (2).

10. The clamp for clamping a bottle mouth mold according to claim 9, characterized in that: The end surface of the clamping platform (2) facing away from the positioning protrusion (21) and the clamping component mounting platform (22) is provided with a plurality of first threaded holes, and the connecting component (1) is provided with a plurality of second threaded holes, the plurality of first threaded holes and the plurality of second threaded holes are arranged in a one-to-one correspondence, and bolts are inserted into the first threaded holes and the corresponding second threaded holes to connect and fix the connecting component (1) and the clamping platform (2).

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