Glass mold mouth mold processing rear pull type clamp

Abstract

This application provides a pull-back type clamping fixture for processing glass mold dies, belonging to the field of glass mold processing technology. It includes a clamping seat, a clamping block, a pull rod, and a locking nut. The clamping seat is fixedly installed on the front end face of a four-axis rotary table. The clamping block is installed on the front side of the clamping seat, and has a clamping plate adapted to the annular groove inside the die. The pull rod is arranged along the axial direction of the four-axis rotary table, one end of which is fixedly connected to the clamping block, and the other end of which passes through the clamping seat and the four-axis rotary table sequentially, extending to the rear side of the four-axis rotary table. The locking nut is located on the rear side of the four-axis rotary table and is threadedly connected to the pull rod. When the locking nut is tightened, the pull rod drives the clamping block to move closer to the clamping seat. The clamping seat applies a force towards the die through the clamping plate, and finally, the die is clamped and fixed on the clamping seat under the action of the clamping plate.

Description

Technical Field

[0001] This application belongs to the field of glass mold processing technology, and more specifically, relates to a pull-back clamp for processing glass mold orifices. Background Technology

[0002] The glass mold mouth is the core component of glass bottle forming equipment, mainly used to shape the bottle mouth structure and ensure forming accuracy. The mouth typically consists of a pair of half-mold bodies (left / right half-mold bodies), with the closing surfaces precisely fitted by positioning ribs and positioning grooves to ensure no misalignment during mold closing. The inner cavity of the mouth mold needs to be threaded at its front end; the quality of the thread formation directly affects the tightness of the bottle cap seal after filling. Currently, mouth molds are usually processed using single-piece milling. However, since milling single-piece mouth molds on a milling machine is costly, there is an urgent need for a fixture that can fix the single-piece mouth mold on a lathe for processing. Utility Model Content

[0003] The purpose of this application is to provide a pull-back fixture for processing glass mold dies, which aims to solve the problem of high cost in the existing processing methods for single-piece dies.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: A pull-back type clamping fixture for processing glass mold dies is provided, comprising: a clamping seat, a clamping block, a pull rod, and a locking nut; the clamping seat is fixedly installed on the front end face of a four-axis rotary table; the clamping block is installed on the front side of the clamping seat, and the clamping block is provided with a clamping plate adapted to the rim groove inside the mold; the pull rod is arranged along the axial direction of the four-axis rotary table, one end of the pull rod is fixedly connected to the clamping block, and the other end of the pull rod passes through the clamping seat and the four-axis rotary table sequentially and extends to... The locking nut is located on the rear side of the four-axis rotary table and is threadedly connected to the pull rod. The die is installed on the outer end face of the clamping seat and fitted onto the outer side of the clamping block. The die's annular groove is fitted onto the clamping plate. By tightening the locking nut, the clamping block, which is fixedly connected to the pull rod, moves towards the four-axis rotary table. The clamping block applies a force to the die towards the clamping seat through the clamping plate. The clamping plate and the clamping seat cooperate to clamp and fix the die.

[0005] In one possible implementation, the outer diameter of the clamping block matches the inner diameter of the die cavity.

[0006] In one possible implementation, a first positioning post is provided at the rear center of the clamping seat, and the first positioning post is adapted to the central through hole of the four-axis rotary table.

[0007] In one possible implementation, a second positioning post is provided at the rear center of the clamping block, and a positioning hole adapted to the second positioning post is provided on the front end face of the clamping seat. The second positioning post is coaxially arranged with the first positioning post.

[0008] In one possible implementation, a guide groove is provided on the outer wall of the second positioning post, the guide groove is arranged along the axial direction of the second positioning post, a guide rod is fixedly installed on the clamping seat, the guide rod is perpendicular to the second positioning post, and one end of the guide rod extends into the guide groove and slides with the guide groove.

[0009] In one possible implementation, a pad is also included, which is installed between the four-axis rotary table and the locking nut, and the front side of the pad is provided with a third positioning post that matches the central through hole of the four-axis rotary table.

[0010] In one possible implementation, an elastic element is installed between the clamping block and the clamping seat, and the elastic element applies a force to the clamping block on the side opposite to the clamping seat.

[0011] In one possible implementation, the elastic element is a compression spring, which is fitted onto the pull rod and abuts against both the clamping seat and the clamping block.

[0012] In one possible implementation, the clamping block has a receiving groove for accommodating the elastic element.

[0013] In one possible implementation, the pull rod is threadedly connected to the clamping block.

[0014] Compared with the prior art, the scheme shown in this application provides a pull-back type fixture for processing glass mold dies. The clamping seat is fixed to the front end face of a four-axis rotary table on a lathe. A clamping block is installed on the front side of the clamping seat. A pull rod is arranged along the axial direction of the four-axis rotary table. One end of the pull rod is fixedly connected to the clamping block, and the other end passes through the clamping seat and the four-axis rotary table sequentially, extending to the rear side of the rotary table. A locking nut is installed on the rear side of the four-axis rotary table and is threadedly connected to the pull rod. By tightening or loosening the locking nut, the distance between the clamping block and the clamping seat is changed. A clamping plate is provided at the front end of the clamping block. The clamping plate is adapted to the annular groove inside the die, so when half of the die is assembled to the outside of the clamping block, the clamping plate is precisely assembled into the annular groove inside the die. When the locking nut is tightened, the pull rod will drive the clamping block to move closer to the clamping seat. The clamping seat applies a force to the die in the direction of the clamping seat through the clamping plate. Finally, the die is clamped and fixed on the clamping seat under the action of the clamping plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic cross-sectional view of the pull-back clamp for processing glass mold orifices provided in this application embodiment. Figure 1 ; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 A schematic cross-sectional view of the pull-back clamp for processing glass mold orifices provided in this application embodiment. Figure 2 ; Figure 4 This is a front view of the clamping block provided in an embodiment of this application; Figure 5 This is a bottom view of the clamping block provided in an embodiment of this application.

[0017] In the diagram: 101, clamping seat; 102, clamping block; 103, pull rod; 104, locking nut; 105, clamping plate; 106, bolt mounting hole; 107, first positioning post; 108, second positioning post; 109, positioning hole; 110, guide groove; 111, guide rod; 112, pad; 113, third positioning post; 114, elastic element; 115, receiving groove; 2, four-axis rotary table; 201, center through hole; 3, die; 301, mouth ring groove. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] Please refer to the following: Figure 1 and Figure 3The following describes the pull-back fixture for processing glass mold dies provided in this application. The pull-back fixture for processing glass mold dies includes: a clamping seat 101, a clamping block 102, a pull rod 103, and a locking nut 104; the clamping seat 101 is fixedly installed on the front end face of the four-axis rotary table 2; the clamping block 102 is installed on the front side of the clamping seat 101, and the clamping block 102 is provided with a clamping plate 105 adapted to the opening ring groove 301 inside the die 3; the pull rod 103 is arranged along the axial direction of the four-axis rotary table 2, one end of the pull rod 103 is fixedly connected to the clamping block 102, and the other end of the pull rod 103 passes through the clamping seat 101 and the four-axis rotary table 2 sequentially and extends to the four-axis rotary table 2. The rear side; the locking nut 104 is located on the rear side of the four-axis rotary table 2 and is connected to the pull rod 103 by threads; the die 3 is installed on the outer end face of the clamping seat 101 and is fitted on the outer side of the clamping block 102, and the mouth ring groove 301 in the die 3 is assembled on the clamping plate 105; by tightening the locking nut 104, the clamping block 102, which is fixedly connected to the pull rod 103, is driven to move in the direction close to the four-axis rotary table 2, and the clamping block 102 applies a force to the die 3 towards the clamping seat 101 through the clamping plate 105, and the clamping plate 105 cooperates with the clamping seat 101 to clamp and fix the die 3.

[0020] The pull-back clamping fixture for glass mold die processing provided in this embodiment, compared with the prior art, has a clamping seat 101 fixed to the front end face of the four-axis rotary table 2 of the lathe, a clamping block 102 installed on the front side of the clamping seat 101, a pull rod 103 arranged along the axial direction of the four-axis rotary table 2, one end of the pull rod 103 fixedly connected to the clamping block 102, and the other end of the pull rod 103 passing through the clamping seat 101 and the four-axis rotary table 2 in sequence and extending to the rear side of the four-axis rotary table 2. A locking nut 104 is installed on the rear side of the four-axis rotary table 2 and is threadedly connected to the pull rod 103. By tightening or loosening the locking nut 104, the distance between the clamping block 102 and the clamping seat 101 is changed. The clamping block 102 has a clamping plate 105 at its front end, which is adapted to the annular groove 301 inside the die 3. Therefore, when the half die 3 is assembled to the outside of the clamping block 102, the clamping plate 105 is just assembled into the annular groove 301 inside the die 3. When the locking nut 104 is tightened, the pull rod 103 will drive the clamping block 102 to move closer to the clamping seat 101. The clamping seat 101 applies a force to the die 3 in the direction of the clamping seat 101 through the clamping plate 105. Finally, the die 3 is clamped and fixed on the clamping seat 101 under the action of the clamping plate 105.

[0021] Since this application achieves clamping and fixing of the die 3 by pulling it to the rear of the four-axis rotary table 2, the fixture of this application is called a pull-back fixture. The four-axis rotary table 2 is used on a lathe to fix the workpiece being machined. While the four-axis rotary table 2 drives the workpiece to rotate, the cutting tool used to machine threads will machine an internal thread on the front end of the inner cavity of the die 3. Existing dies 3 are all provided with a rear annular groove 301, which is a circular groove used to install an annular ring. The annular ring is only installed in the annular groove 301 after the die 3 has been machined and the glass mold is assembled. Since the annular groove 301 is located inside the threaded hole at the front end of the die 3, the clamping plate 105 will not affect the machining of the threaded hole at the front end of the die 3.

[0022] The existing four-axis rotary table 2 has two T-slots on its front end face, which are cross-shaped and extend radially through the entire four-axis rotary table 2. The clamping seat 101 has a mounting flange with four bolt mounting holes 106 evenly distributed along the circumference of the clamping seat 101. The bolts are hexagonal head bolts, with their heads located within the T-slots, which restrict their rotation. The clamping seat 101 is fixed to the four-axis rotary table 2 by four bolts.

[0023] In some embodiments, please refer to Figure 1 and Figure 3 The outer diameter of the clamping block 102 matches the inner diameter of the die 3. In this embodiment, before machining the thread at the front end of the die 3's inner cavity, the inner surface of the die 3 has been rough-machined and finished using a lathe or milling machine. Since the die 3 is a half-piece, the cross-sections of both the clamping block 102 and the clamping plate 105 are semi-circular. Because the outer diameter of the clamping block 102 matches the inner diameter of the die 3, the inner cavity of the die 3 can completely fit the outer wall of the clamping block 102. Therefore, the clamping block 102 can position the die 3, ensuring the accuracy of the die 3's assembly position. The clamping block 102 and the clamping plate 105 are integrally manufactured using a casting process, and then machined to achieve the specified dimensional tolerances and shapes. The integrally formed structure has higher strength and is more robust and durable.

[0024] In some embodiments, please refer to Figure 1 and Figure 3A first positioning post 107 is provided at the rear center of the clamping base 101, and the first positioning post 107 is adapted to the central through hole 201 of the four-axis rotary table 2. In this embodiment, the first positioning post 107 is cylindrical and is coaxially arranged with the clamping base 101. Existing four-axis rotary tables 2 all have a central through hole 201 at their center, which extends through the entire four-axis rotary table 2 along its axial direction. The shape and size of the first positioning post 107 are adapted to the central through hole 201 of the four-axis rotary table 2, so the first positioning post 107 can ensure that the clamping base 101 is located at the center of the four-axis rotary table 2. The first positioning post 107 and the clamping base 101 are integrally formed. The coaxiality and dimensional accuracy of the first positioning post 107 and the support base are ensured by machining.

[0025] In some embodiments, please refer to Figures 1 to 3 A second positioning post 108 is provided at the rear center of the clamping block 102, and a positioning hole 109 adapted to the second positioning post 108 is provided on the front end face of the clamping seat 101. The second positioning post 108 is coaxially arranged with the first positioning post 107. In this embodiment, the second positioning post 108 is cylindrical. The second positioning post 108 is coaxially arranged with the clamping block 102. The second positioning post 108 and the clamping block 102 are integrally formed structures. The second positioning post 108 maintains coaxiality and dimensional accuracy with the clamping block 102 through machining. The diameter of the first positioning post 107 is smaller than that of the clamping block 102, so the second positioning post 108 will not contact the inner cavity of the die 3. The fixture of this application only relies on the clamping block 102 to position the die 3. The axial length of the clamping block 102 is less than the distance between the annular groove 301 of the die 3 and the inner end face of the die 3. Therefore, when the die 3 abuts against the clamping seat 101, a certain gap is left between the clamping block 102 and the clamping seat 101. The positioning hole 109 is formed on the front end face of the clamping seat 101. The positioning hole 109 is a circular countersunk hole and is coaxial with the clamping seat 101. By inserting the second positioning pin 108 into the positioning hole 109, the coaxiality of the clamping block 102 and the clamping seat 101 is ensured, and the die 3 is ultimately made coaxial with the four-axis rotary table 2. Therefore, the four-axis rotary table 2 can drive the die 3 to rotate along its own axis, so that the center of the threaded hole machined on the die 3 can be aligned with the axis of the die 3. The second positioning pin 108 and the positioning hole 109 are clearance fit, so the second positioning pin 108 can move axially within the positioning hole 109.

[0026] In some embodiments, please refer to Figures 3 to 5A guide groove 110 is provided on the outer wall of the second positioning post 108. The guide groove 110 is arranged along the axial direction of the second positioning post 108. A guide rod 111 is fixedly installed on the clamping seat 101. The guide rod 111 is perpendicular to the second positioning post 108, and one end of the guide rod 111 extends into the guide groove 110 and slides in cooperation with the guide groove 110. In this embodiment, the guide groove 110 is a through groove structure, and the length direction of the guide groove 110 is consistent with the axial direction of the second positioning post 108. Since the clamping block 102 and the clamping plate 105 are both semi-circular, and the second positioning post 108 is cylindrical, a part of the second positioning post 108 will protrude from the outer contour of the clamping block 102, and the guide groove 110 is located in the area of ​​the second positioning post 108 that protrudes from the clamping block 102. The guide rod 111 is detachably mounted on the clamping seat 101. A threaded hole for mounting the guide rod 111 is provided on the outer wall of the clamping seat 101. The threaded hole is radially arranged along the clamping seat 101, so the guide rod 111 remains perpendicular to the axial direction of the clamping seat 101. One end of the guide rod 111 extends into the guide groove 110 and slides against the opposite side walls of the guide groove 110. By installing the guide rod 111 between the clamping seat 101 and the second positioning post 108, the degree of freedom of rotation of the second positioning post 108 around its own axis can be effectively restricted, thereby improving the stability of the clamping block 102 on the clamping seat 101. When the locking nut 104 is tightened, due to the restrictive effect of the guide rod 111, the pull rod 103 and the clamping block 102 will not rotate synchronously with the locking nut 104.

[0027] In some embodiments, please refer to Figure 1 and Figure 3The system also includes a pad 112, which is installed between the four-axis rotary table 2 and the locking nut 104. The front side of the pad 112 has a third positioning post 113 that matches the central through-hole 201 of the four-axis rotary table 2. In this embodiment, the diameter of the central through-hole 201 of the four-axis rotary table 2 is larger than the outer diameter of the pull rod 103 and the locking nut 104. The pull rod 103 is coaxially arranged with the clamping block 102, and the clamping block 101 has a clearance through-hole at its center to allow the pull rod 103 to pass through. The pad 112 also has a clearance through-hole at its center to allow the pull rod 103 to pass through. The diameter of the pad 112 itself is larger than the diameter of the central through-hole 201 of the four-axis rotary table 2, so that the pad 112 can abut against the rear end face of the four-axis rotary table 2, providing good support for the locking nut 104. The pad 112 is disc-shaped, and the third positioning post 113 is cylindrical. The third positioning post 113 and the pad 112 are coaxially arranged and are integrally formed. The coaxiality and dimensional accuracy of the third positioning post 113 and the pad 112 are ensured by machining. The shape and size of the third positioning post 113 are adapted to the central through hole 201 of the four-axis rotary table 2, so the third positioning post 113 can prevent the pad 112 from shifting on the four-axis rotary table 2. When the locking nut 104 is tightened, the locking nut 104 abuts against the outer end face of the pad 112.

[0028] In some embodiments, please refer to Figure 1 and Figure 2 An elastic element 114 is installed between the clamping block 102 and the clamping seat 101. The elastic element 114 applies a force to the clamping block 102 on the side away from the clamping seat 101. In this embodiment, the elastic element 114 can be a rubber elastic element or a metal elastic element. The rubber elastic element includes a rubber shock absorber, an O-ring, and a silicone elastomer, while the metal elastic element includes a metal threaded tube and a spring. The elastic element 114 is installed between the clamping block 102 and the clamping seat 101, thereby providing a force to the clamping block 102 on the side away from the clamping seat 101. After the threaded hole of die 3 is machined, die 3 needs to be removed from the four-axis turntable 2. At this time, the locking nut 104 needs to be loosened, and the clamping block 102 will automatically move away from the clamping seat 101 under the action of the elastic element 114, thereby driving die 3 away from the clamping seat 101, and finally releasing the clamping force on die 3. Then die 3 can be removed from clamping block 102 along the radial direction of clamping block 102.

[0029] In some embodiments, please refer to Figure 2The elastic element 114 is a compression spring, which is fitted onto the pull rod 103 and abuts against both the clamping seat 101 and the clamping block 102. In this embodiment, the elastic element 114 is a compression spring. Since the second positioning post 108 is located on the rear side of the clamping block 102, the pull rod 103 is fixedly connected to the second positioning post 108. Because the elastic element 114 is fitted onto the pull rod 103, the pull rod 103 limits the elastic element 114, effectively preventing excessive torsional deformation of the elastic element 114, thereby keeping the elastic element 114 relatively stable between the clamping block 102 and the clamping seat 101. Since the second positioning post 108 is installed in the positioning hole 109, one end of the elastic element 114 abuts against the bottom surface of the positioning hole 109, and the other end abuts against the second positioning post 108.

[0030] In some embodiments, please refer to Figure 2 The clamping block 102 has a receiving groove 115 for accommodating the elastic member 114. In this embodiment, the receiving groove 115 is formed on the second positioning post 108 on the rear side of the clamping block 102. The outer contour of the receiving groove 115 is larger than the outer contour of the elastic member 114, and the depth of the receiving groove 115 is smaller than the length of the elastic member 114. Therefore, only a portion of the elastic member 114 is located within the receiving groove 115. By forming the receiving groove 115 on the second positioning post 108, the space required by the elastic member 114 can be effectively shortened, making the overall structure more compact.

[0031] In some embodiments, please refer to Figure 1 The pull rod 103 and the clamping block 102 are connected by threads. In this embodiment, since the second positioning post 108 and the clamping block 102 are fixedly connected, one end of the pull rod 103 is fixedly installed on the second positioning post 108, thereby achieving a fixed connection between the pull rod 103 and the clamping block 102. The pull rod 103 is a threaded rod, so the pull rod 103, the second positioning post 108, and the locking nut 104 are all connected by threads. A threaded hole adapted to the pull rod 103 is provided on the rear end face of the second positioning post 108. The pull rod 103 and the second positioning post 108 are connected by threads, which facilitates the disassembly and assembly of the pull rod 103.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A back-pull type clamp for mouth processing of a glass mold, characterized by, include: Clamping seat, clamping block, pull rod, and locking nut; The clamping seat is fixedly installed on the front end face of the four-axis rotary table; the clamping block is installed on the front side of the clamping seat, and the clamping block is provided with a clamping plate that matches the annular groove in the die; the pull rod is arranged along the axial direction of the four-axis rotary table, one end of the pull rod is fixedly connected to the clamping block, and the other end of the pull rod passes through the clamping seat and the four-axis rotary table in sequence and extends to the rear side of the four-axis rotary table; the locking nut is located on the rear side of the four-axis rotary table and is threadedly connected to the pull rod; the die is installed on the outer end face of the clamping seat and fitted on the outer side of the clamping block, and the annular groove in the die is fitted on the clamping plate; by tightening the locking nut, the clamping block fixedly connected to the pull rod is moved in a direction close to the four-axis rotary table, and the clamping block applies a force to the die towards the clamping seat through the clamping plate, and the clamping plate cooperates with the clamping seat to clamp and fix the die.

2. The glass mouth mold post draw clamp of claim 1, wherein, The outer diameter of the clamping block matches the inner diameter of the die cavity.

3. The glass mouth mold post draw clamp of claim 1, wherein, The clamping seat has a first positioning post at its rear center, which is adapted to the central through hole of the four-axis rotary table.

4. The pull-back clamping fixture for processing glass mold orifices as described in claim 3, characterized in that, The clamping block has a second positioning post at its rear center, and the clamping seat has a positioning hole on its front end face that matches the second positioning post. The second positioning post is coaxially arranged with the first positioning post.

5. The pull-back clamp for processing glass mold orifices as described in claim 4, characterized in that, A guide groove is provided on the outer side wall of the second positioning post. The guide groove is arranged along the axial direction of the second positioning post. A guide rod is fixedly installed on the clamping seat. The guide rod is perpendicular to the second positioning post. One end of the guide rod extends into the guide groove and slides with the guide groove.

6. The pull-back clamping fixture for processing glass mold orifices as described in claim 1, characterized in that, It also includes a pad, which is installed between the four-axis rotary table and the locking nut. The front side of the pad is provided with a third positioning post that matches the central through hole of the four-axis rotary table.

7. The pull-back clamp for processing glass mold orifices as described in claim 1, characterized in that, An elastic element is installed between the clamping block and the clamping seat, and the elastic element applies a force to the clamping block on the side away from the clamping seat.

8. The pull-back clamp for processing glass mold nozzles as described in claim 7, characterized in that, The elastic element is a compression spring, which is mounted on the pull rod and abuts against the clamping seat and the clamping block respectively.

9. The pull-back clamp for processing glass mold orifices as described in claim 8, characterized in that, The clamping block has a receiving groove for accommodating the elastic element.

10. The pull-back clamp for processing glass mold orifices as described in claim 1, characterized in that, The pull rod and the clamping block are connected by threads.

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