Fixing tool for machining side hole of stent product

Abstract

The utility model discloses a kind of fixed tool for bracket product side hole processing, bracket product is equipped with two oppositely arranged ring parts and a pair of arm parts fixedly connected between two ring parts;The fixed tool is used to fix the bracket product placed vertically, the fixed tool includes base, and respectively set on base limiting component, clamping assembly and pressure component, limiting component can be supported and limit the ring part located below, clamping assembly can be simultaneously clamped and fixed to a pair of arm parts, pressure component can be fixed to the ring part located above by pressure.The fixed tool is simple in structure, reasonable, low in manufacturing cost, easy to operate and can firmly fix bracket product in multiple positions and multiple positioning modes, can be well applied to side hole processing of bracket product, and can significantly improve the side hole processing precision of bracket product.

Description

Technical Field

[0001] This utility model relates to the field of fixing tooling technology, and in particular to a fixing tooling for machining side holes in bracket products. Background Technology

[0002] Bracket products are widely used in machinery manufacturing, electronic products, automobiles, aerospace and other fields. Moreover, depending on the design requirements, the structure of bracket products usually includes technical features such as side holes and through slots.

[0003] Currently, when machining side holes in bracket products, a fixed fixture is typically used to position the bracket. However, because conventional fixed fixtures have a relatively simple and basic structure, they are prone to insecure positioning when positioning bracket products with special or unique structures. Furthermore, since the cutting tool operates through a combined rotary and linear feed motion during side hole machining, if the fixed fixture is not securely positioned, the bracket is highly susceptible to micro-deformation under cutting forces, resulting in low precision in the side hole machining.

[0004] In view of the above, this utility model is hereby proposed. Summary of the Invention

[0005] To overcome the above-mentioned defects, this utility model provides a fixing fixture for side hole processing of bracket products. It has a simple and reasonable structure, low manufacturing cost, and is easy to operate. It can reliably fix bracket products in multiple positions and positioning modes, and can be well applied to the side hole processing of bracket products, which can significantly improve the side hole processing accuracy of bracket products.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a fixing fixture for processing side holes of a bracket product. The bracket product has two oppositely arranged rings and a pair of arms fixedly connected between the two rings. The fixing fixture is used to fix the vertically placed bracket product. The fixing fixture includes a base and a limiting component, a clamping component, and a pressing component respectively disposed on the base. The limiting component can receive and limit the lower ring, the clamping component can clamp and fix the pair of arms simultaneously, and the pressing component can press and fix the upper ring.

[0007] As a further improvement of this utility model, the base is provided with a base and a mounting plate that can be adjusted and fixed on the upper side of the base relative to the horizontal position of the base, and a gantry bracket is vertically provided on the upper side of the mounting plate. Both the limiting component and the clamping component are disposed on the upper side of the mounting plate, and the pressing component is mounted on the gantry bracket.

[0008] As a further improvement of this utility model, based on the vertical placement state of the bracket product, the lower ring portion is defined as ring portion A, and the upper ring portion is defined as ring portion B; The limiting component has a positioning block centrally located on the side of the mounting plate and a plurality of auxiliary limiting blocks spaced apart around the positioning block. The shape of the positioning block matches the shape of the ring A for the ring A to be fitted. The ends of the plurality of auxiliary limiting blocks facing the positioning block are all arc-shaped to achieve a close fit and abutment of the ring A fitted around the positioning block.

[0009] As a further improvement of this utility model, the clamping assembly is provided with two clamping plates arranged side by side above the mounting plate. The two clamping plates can move relatively close or away from each other to achieve simultaneous clamping or releasing of a pair of arms.

[0010] As a further improvement of this utility model, the clamping assembly is also provided with a drive cylinder fixedly disposed on the side of the mounting plate, the drive cylinder being able to drive the two clamping plates to move closer to each other or further apart.

[0011] As a further improvement of this utility model, the gantry bracket is provided with two vertical rods fixed side by side on the side of the mounting plate and a horizontal beam spanning and fixed between the upper ends of the two vertical rods; The pressing assembly includes a pressure plate slidably connected between the two vertical rods and a driving member disposed on the crossbeam. The driving member can drive the pressure plate to press down relative to the limiting assembly to press and fix the ring B.

[0012] As a further improvement of this utility model, the pressure plate is slidably connected to the two vertical rods by a linear bearing, and the driving component is any one of a lifting cylinder, an electric linear drive, and a manual linear drive.

[0013] As a further improvement of this utility model, the driving component is a manual linear drive component. The manual linear drive component is provided with a lead screw that extends vertically and is rotatably mounted on the crossbeam, a nut that is movably sleeved on the lead screw, and a handwheel that is fixedly connected to the upper end of the lead screw. The nut is fixedly connected to the pressure plate, and the lower end of the lead screw also freely passes through the pressure plate.

[0014] As a further improvement of this utility model, the ring portion A and the ring portion B are arranged with the same center line. Correspondingly, the lead screw and the positioning block are also arranged with the same center line, and the outer diameter of the lead screw is smaller than the inner diameter of the ring portion B.

[0015] The beneficial effects of this utility model are: ① The fixing fixture provided by this utility model can reliably fix the bracket product in multiple positions and positioning modes, and can be well applied to the side hole processing of the bracket product, which can significantly improve the side hole processing accuracy of the bracket product. ② The fixing fixture of this utility model has a simple and reasonable structure, is easy to process and manufacture, has low manufacturing cost, is easy to operate and use, has high production efficiency, and has a good fixing effect. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a stent product in the prior art; Figure 2 This is a three-dimensional structural diagram of the fixing fixture for machining the side holes of the bracket product described in this utility model; Figure 3 for Figure 2 A side view of the fixed fixture shown in the diagram; Figure 4 for Figure 2 A partial structural schematic diagram of the fixed fixture shown; Figure 5 for Figure 2 The diagram shows the usage status of the fixed tooling shown.

[0017] Referring to the accompanying drawings, the following explanations are provided: 1. Bracket product; 10. Ring; 11. Arm; 2. Fixture; 20. Base; 200. Base plate; 201. Mounting plate; 202. Fixing groove; 203. Bolt; 21. Gantry bracket; 210. Vertical rod; 211. Horizontal beam; 22. Positioning block; 23. Auxiliary limiting block; 24. Clamping plate; 25. Drive cylinder; 26. Pressure plate; 27. Lead screw; 28. Nut; 29. ​​Handwheel; 212. Linear bearing; 213. Support; 214. Clamping clamp. Detailed Implementation

[0018] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Example:

[0020] This embodiment provides a fixing fixture 2 for securely fixing a vertically placed bracket product 1 to meet the side hole processing requirements of the bracket product 1. Regarding the bracket product 1, it is a commercially available bracket; therefore, its specific structure and processing method are not the focus of this application. Thus, only a brief description is provided here: Please refer to the attached document. Figure 1As shown, the bracket product 1 has two oppositely arranged ring portions 10 and a pair of arms 11 fixedly connected between the two ring portions 10. The two ring portions 10 are arranged along the same center line, and the outer diameters of the two ring portions 10 are the same, while their inner diameters are different. When the bracket product 1 is fixed in a vertical position by the fixing fixture 2 (see attached figure), Figure 5 As shown, side holes can be machined on the two arms 11 using a CNC drilling machine.

[0021] Based on the above structural description of the bracket product 1, the specific structure of the fixing fixture 2 described in this embodiment will be described in detail below.

[0022] Please see the appendix Figure 2 To be continued Figure 5 As shown, the fixing fixture 2 in this embodiment includes a base 20, and a limiting component, a clamping component, and a pressing component respectively disposed on the base 20. The limiting component can receive and limit the lower ring portion 10, the clamping component can simultaneously clamp and fix a pair of arms 11, and the pressing component can press and fix the upper ring portion 10. It is understood that the fixing fixture 2 can fix the bracket product 1 in multiple positions and multiple positioning modes (such as clamping and fixing modes, pressing and fixing modes, etc.). That is, the fixing fixture 2 provides a uniform distribution of fixing force on the bracket product 1 and has high fixing reliability, making it well-suited for the side hole machining of the bracket product 1 and significantly improving the side hole machining accuracy of the bracket product 1.

[0023] To facilitate the following description of the specific implementation structure of the limiting component, clamping component, and pressing component in the fixed tooling 2 structure, this embodiment also defines the lower ring portion 10 as ring portion A and the upper ring portion 10 as ring portion B.

[0024] Please continue to refer to the appendix. Figure 4 As shown, in this embodiment, the preferred implementation structure of the base 20 is as follows: the base 20 is provided with a base 200 and a mounting plate 201 that can be adjusted and fixed on the upper side of the base 200 relative to the horizontal position of the base 200.

[0025] Based on the specific structure of the base 20, both the limiting component and the clamping component are directly disposed on the upper side of the mounting plate 201. The pressing component is disposed above the mounting plate 201 via a gantry bracket 21. That is, the gantry bracket 21 is vertically and fixedly disposed on the upper side of the mounting plate 201, and the pressing component is mounted on the gantry bracket 21. It is understandable that, since the limiting component, clamping component, and pressing component are all disposed on the mounting plate 201, by designing the mounting plate 201 to be horizontally adjustable relative to the base 200, the fixed bracket product 1 can be better adapted to the machining environment of the CNC drilling machine. In other words, the fixing fixture 2 in this embodiment has an overall self-adjusting position relative to the CNC drilling machine, resulting in excellent production applicability.

[0026] Furthermore, the mounting plate 201 can be adjusted and fixedly mounted on the upper side of the base 200 relative to its horizontal position, which can be achieved through the following structural design: Please refer to the appendix. Figure 4 As shown, multiple fixing grooves 202 extending along a first horizontal direction are provided on the upper side of the base 200. Simultaneously, these fixing grooves 202 are arranged side-by-side along a second horizontal direction perpendicular to the first horizontal direction. After adjusting the position between the mounting plate 201 and the base 200 according to processing requirements, the operator passes multiple bolts 203 through the mounting plate 201 and screws them into the fixing grooves 202, thus fixing the mounting plate 201 to the base 200. Furthermore, taking a rectangular plate as an example, the first horizontal direction is the length direction of the base 200, and the second horizontal direction is the width direction of the base 200.

[0027] Please continue to refer to the appendix. Figure 3 To be continued Figure 5 As shown, in this embodiment, the preferred implementation structure of the limiting component is as follows: the limiting component has a positioning block 22 centrally located on the upper side of the mounting plate 201 and multiple (two or more) auxiliary limiting blocks 23 spaced apart around the positioning block 22. The shape of the positioning block 22 matches the shape of the ring portion A for fitting the ring portion A. The ends of the multiple auxiliary limiting blocks 23 facing the positioning block 22 are all arc-shaped to achieve a close fit and abutment against the ring portion A fitted around the positioning block 22. It can be understood that the positioning block 22 and the auxiliary limiting blocks 23 in the limiting component cooperate to limit the inner and outer sides of the ring portion A, resulting in a simple structure and good limiting effect.

[0028] Please continue to refer to the appendix. Figure 2 Appendix Figure 3 and attached Figure 5As shown, in this embodiment, the clamping assembly preferably adopts the following structure: the clamping assembly has two clamping plates 24 arranged side by side above the mounting plate 201, and at least two driving cylinders 25 fixedly arranged on the upper side of the mounting plate 201. The at least two driving cylinders 25 work together to drive the two clamping plates 24 to move relatively closer or away from each other, thereby achieving simultaneous clamping or releasing of the pair of arms 11. It is understood that the clamping assembly has a simple structure, reasonable and efficient operation, and adjustable operating force, which can achieve simultaneous clamping of the pair of arms 11 without damaging the arms 11.

[0029] Furthermore, based on the above-described structure of the base 20, both clamping plates 24 are elongated strips extending along the first horizontal direction, and simultaneously, the two clamping plates 24 are arranged side-by-side along the second horizontal direction. Consequently, when the bracket product 1 is mounted on the limiting assembly, the two arms 11 on the bracket product 1 need to be adjusted to be spaced apart along the first horizontal direction, so that the two clamping plates 24 can clamp and fix the non-processed sides of the two arms 11.

[0030] Please continue to refer to the appendix. Figure 2 Appendix Figure 3 and attached Figure 5 As shown, in this embodiment, the pressing assembly, mounted above the mounting plate 201 via the gantry bracket 21, has the following structure: the gantry bracket 21 has two vertical rods 210 fixed side-by-side on the upper side of the mounting plate 201 and a horizontal beam 211 spanning and fixed between the upper ends of the two vertical rods 210; the pressing assembly has a pressure plate 26 slidably connected between the two vertical rods 210 via a linear bearing 212 and a driving member mounted on the horizontal beam 211. The driving member can drive the pressure plate 26 to press down relative to the limiting assembly, thereby pressing and fixing the ring portion B. It is understood that the pressing assembly has a simple structure, reasonable operation, and adjustable operating force.

[0031] Furthermore, regarding the aforementioned drive component, it can be any one of a lifting cylinder, an electric linear drive, or a manual linear drive in production applications. This embodiment employs a manual linear drive based on production requirements (such as cost control and ease of operation), and this manual linear drive is preferably designed as follows: Please refer to the appendix. Figure 2 Appendix Figure 3 and attached Figure 5As shown, the manual linear drive includes a lead screw 27 extending vertically and rotatably mounted on the crossbeam 211 via bearings, a nut 28 movably sleeved on the lead screw 27, and a handwheel 29 fixedly connected to the upper end of the lead screw 27 (understandably, the upper end of the lead screw 27 extends above the crossbeam 211). The nut 28 is fixedly connected to the pressure plate 26 located below the crossbeam 211, and the lower end of the lead screw 27 freely passes through the pressure plate 26. Understandably, depending on production needs, the handwheel 29 can be replaced with a motor to achieve an electric drive effect, thus constituting an electric linear drive.

[0032] Furthermore, to enhance the stability of the pressing component when pressing against the ring B, this embodiment also incorporates the following structural design: ① Based on the fact that the ring A and the ring B are arranged along the same center line, this embodiment specifically designs the lead screw 27 and the positioning block 22 to be arranged along the same center line, and also designs the outer diameter of the lead screw 27 to be smaller than the inner diameter of the ring B. Thus, during the downward pressing movement of the pressure plate 26, the lower end of the lead screw 27 will pass through / or through the ring B, thereby preventing interference between the pressure plate 26 and the upper surface of the ring B. ② A support 213 and a clamp 214 are also provided. The support 213 is locked on the upper side of the crossbeam 211, and the support 213 is also provided with a through hole for the upper end of the lead screw 27 to pass through freely. The clamp 214 is locked on the upper side of the support 213 and is sleeved on the upper part of the lead screw 27. When the operator operates the handwheel 29 to drive the pressure plate 26 to press down into place, the clamp 214 can be used to clamp the lead screw 27, which effectively prevents the pressure plate 26 from having an unsatisfactory pressing effect on the ring B due to the lead screw 27 rotating due to misoperation.

[0033] Based on the above description of the specific structure of the fixing fixture 2 in this embodiment, it can be known that the method of using the fixing fixture 2 is as follows: S1: The operator places the ring A of the bracket product 1 onto the positioning block 22. At that time, the positioning block 22 and the auxiliary limiting block 23 work together to limit and position the ring A. In addition, the operator needs to adjust the two arms 11 on the bracket product 1 so that they are spaced apart along the first horizontal direction to facilitate the subsequent operation of the clamping assembly.

[0034] S2: The drive cylinder 25 operates to drive the two clamping plates 24 to move closer to each other, so as to simultaneously clamp the pair of arms 11. S3: The operator manipulates the handwheel 29 to drive the pressure plate 26 to press down, thereby pressing and fixing the ring B. After the pressure plate 26 is pressed down, the operator manipulates the clamp 214 to tighten the lead screw 27, effectively preventing the lead screw 27 from rotating. At this point, the fixing fixture 2 has reliably fixed the bracket product 1 in multiple positions and positioning modes.

[0035] In summary, the fixing fixture of this utility model has a simple and reasonable structure, low manufacturing cost, and is easy to operate. It can reliably fix the bracket product in multiple positions and positioning modes, and is well applicable to the side hole processing of the bracket product, which can significantly improve the side hole processing accuracy of the bracket product.

[0036] Finally, the suffixes "A", "B", etc. in the component names in this specification (such as ring A, ring B, etc.) are only for ease of description and are not intended to limit the scope of this utility model patent.

[0037] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A fixing fixture for machining side holes in a bracket product, the bracket product (1) having two oppositely arranged ring portions (10) and a pair of arms (11) fixedly connected between the two ring portions (10); characterized in that: The fixing fixture is used to fix the vertically placed bracket product (1). The fixing fixture includes a base (20) and a limiting component, a clamping component and a pressing component respectively disposed on the base (20). The limiting component can receive and limit a ring (10) located below, the clamping component can clamp and fix a pair of arms (11) at the same time, and the pressing component can press and fix a ring (10) located above.

2. The fixing fixture for machining side holes in the bracket product according to claim 1, characterized in that: The base (20) is provided with a base (200) and a mounting plate (201) that can be fixedly mounted on the upper side of the base (200) in an adjustable horizontal position relative to the base (200). A gantry bracket (21) is vertically mounted on the upper side of the mounting plate (201). The limiting component and the clamping component are both disposed on the upper side of the mounting plate (201), and the pressing component is mounted on the gantry bracket (21).

3. The fixing fixture for machining side holes in the bracket product according to claim 2, characterized in that: Based on the vertical placement of the bracket product (1), the lower ring (10) is defined as ring A, and the upper ring (10) is defined as ring B; The limiting component is provided with a positioning block (22) centrally located on the upper side of the mounting plate (201) and a plurality of auxiliary limiting blocks (23) spaced apart around the positioning block (22). The shape of the positioning block (22) matches the shape of the ring A for the ring A to be fitted. The ends of the plurality of auxiliary limiting blocks (23) facing the positioning block (22) are all arc-shaped to achieve a close fit and contact with the ring A fitted around the positioning block (22).

4. The fixing fixture for machining side holes in the bracket product according to claim 2, characterized in that: The clamping assembly has two clamping plates (24) arranged side by side above the mounting plate (201). The two clamping plates (24) can move relatively close or away from each other to simultaneously clamp or release a pair of arms (11).

5. The fixing fixture for machining side holes in the bracket product according to claim 4, characterized in that: The clamping assembly is also provided with a drive cylinder (25) fixedly disposed on the upper side of the mounting plate (201), the drive cylinder (25) being able to drive the two clamping plates (24) to move relatively closer or away from each other.

6. The fixing fixture for machining side holes in the bracket product according to claim 3, characterized in that: The gantry support (21) is provided with two vertical rods (210) fixed side by side on the upper side of the mounting plate (201) and a horizontal beam (211) spanning and fixed between the upper ends of the two vertical rods (210). The pressing assembly is provided with a pressure plate (26) slidably connected between the two vertical rods (210) and a driving member disposed on the crossbeam (211). The driving member can drive the pressure plate (26) to press down relative to the limiting assembly to press and fix the ring B.

7. The fixing fixture for machining side holes in a bracket product according to claim 6, characterized in that: The pressure plate (26) is slidably connected to the two vertical rods (210) via linear bearings, and the driving component is any one of a lifting cylinder, an electric linear drive, or a manual linear drive.

8. The fixing fixture for machining side holes in a bracket product according to claim 7, characterized in that: The driving component is a manual linear drive component. The manual linear drive component is provided with a lead screw (27) that extends vertically and is rotatably mounted on the crossbeam (211), a nut (28) that is movably sleeved on the lead screw (27), and a handwheel (29) that is fixedly connected to the upper end of the lead screw (27). The nut (28) is fixedly connected to the pressure plate (26), and the lower end of the lead screw (27) also freely passes through the pressure plate (26).

9. The fixing fixture for machining side holes in a bracket product according to claim 8, characterized in that: The ring A and the ring B are arranged along the same center line. Correspondingly, the lead screw (27) and the positioning block (22) are also arranged along the same center line, and the outer diameter of the lead screw (27) is smaller than the inner diameter of the ring B.

Images