Double-end numerical control side hole machine

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a double-head numerical control side hole machine which comprises a rack, two drill bits and two driving devices, the rack comprises a workbench and positioning jigs, every two positioning jigs form a group and are symmetrically arranged on the workbench, and the two positioning jigs in the same group are used for clamping or loosening the two ends of a pipe fitting respectively; the two drill bits are arranged on the two sides of the workbench correspondingly, the two driving devices are both arranged on the rack and are in transmission connection with the two drill bits correspondingly, and the driving devices are used for driving the drill bits to move relative to the workbench so as to drill the end face of the pipe fitting. The pipe fitting drilling machine can solve the problem of drilling two ends of a pipe fitting at the same time.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a double-head CNC side-hole machine. Background Technology

[0002] In the field of modern machining, side-drilling machines play a crucial role as mechanical equipment capable of drilling from the side. Their application is particularly indispensable when processing workpieces of certain shapes, such as tubular workpieces (i.e., pipe fittings). Pipe fittings, as core components in many industrial devices, often require precise drilling on both ends to meet subsequent assembly needs or specific functional requirements.

[0003] However, most existing side-drilling machines adopt a single-head processing mode, meaning they can only drill one end of the pipe fitting at a time. While this mode might be sufficient for pipe fittings requiring drilling at only one end, its limitations become glaringly apparent when dealing with fittings requiring drilling at both ends. Because only one end can be processed at a time, after drilling one end, the operator must manually remove the pipe fitting from the machine, flip it over, and re-clamp it before drilling the other end. This process is not only time-consuming and labor-intensive, significantly reducing overall processing efficiency, but also prone to inaccurate positioning and insecure clamping during the flipping and repositioning process, thus affecting the accuracy and consistency of the drilling.

[0004] In view of the above problems, it is particularly important to develop a double-head CNC side-drilling machine that can simultaneously drill holes at both ends of pipe fittings. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a double-head CNC side-drilling machine, which can at least solve the technical problem of how to drill holes at both ends of a pipe simultaneously.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a double-head CNC side-hole machine, comprising:

[0009] The frame includes a worktable and positioning fixtures. The positioning fixtures are arranged in pairs and symmetrically on the worktable. The two positioning fixtures in the same pair are used to clamp or release the two ends of the pipe fitting, respectively.

[0010] Two drill bits and two drive units are provided. The two drill bits are located on opposite sides of the worktable, and the two drive units are mounted on the frame and connected to the two drill bits respectively. The drive units are used to drive the drill bits to move relative to the worktable in order to drill holes in the end face of the pipe.

[0011] Further configuration: the aforementioned workbench includes two spaced sub-workbenches, with two positioning fixtures of the same group respectively located on the two sub-workbenches, and two drill bits located on opposite sides of the two sub-workbenches respectively;

[0012] The frame also includes at least one support platform, which is located between the two sub-worktables and is used to support the pipe fittings.

[0013] In a further configuration, at least two support platforms are provided and slidably mounted on the frame. The top surface of the support platform is rotatably provided with at least one roller for supporting the pipe fitting. The axis of the roller is perpendicular to the axis of the pipe fitting clamped on the worktable.

[0014] In a further configuration, the aforementioned support platform includes a base, a support frame, and a lifting mechanism. The support frame is slidably mounted vertically above the base and is used to support the pipe fittings. The lifting mechanism is mounted on the base, and its output end is connected to the support frame. The lifting mechanism is used to drive the support frame to move up and down to adjust the position of the support frame in the vertical direction.

[0015] Furthermore, the aforementioned positioning fixture is provided in at least two sets, with each set of positioning fixtures arranged at equal intervals along the width direction of the worktable.

[0016] Further, the aforementioned positioning fixture includes:

[0017] A fixed base is provided on the top surface of the workbench and is provided with a first limiting groove;

[0018] The lifting seat slides vertically on the fixed seat and is provided with a second limiting groove. The opening of the second limiting groove and the opening of the first limiting groove are positioned opposite each other and are combined to form a limiting channel. The second limiting groove and / or the first limiting groove are V-shaped.

[0019] The drive rod is screwed onto the fixed base and fixed to the lifting base. The drive rod is used to drive the lifting base to move up and down to adjust the size of the limit channel.

[0020] Further configuration: the aforementioned drive device includes an X-axis drive mechanism, a Y-axis drive mechanism, and a Z-axis drive mechanism. The X-axis drive mechanism is mounted on the frame. The output end of the X-axis drive mechanism is connected to the Y-axis drive mechanism. The output end of the Y-axis drive mechanism is connected to the Z-axis drive mechanism. The output end of the Z-axis drive mechanism is connected to the drill bit.

[0021] The X-axis drive mechanism is used to drive the drill bit to move along the width of the worktable, the Y-axis drive mechanism is used to drive the drill bit to move along the length of the worktable, and the Z-axis drive mechanism is used to drive the drill bit to move along the height of the worktable.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, the double-head CNC side-hole machine provided by this utility model has the following beneficial effects:

[0024] When using this double-head CNC side-drilling machine, firstly, both ends of the pipe to be drilled are fixed to two positioning fixtures in the same set; then, two drive devices and two drill bits are started. The two drive devices drive the two drill bits to move relative to the worktable to drill both ends of the pipe simultaneously. It can be seen that, compared with existing technologies, this invention can drill both ends of the pipe simultaneously, thereby greatly improving processing efficiency, solving the problem of repositioning the pipe, and improving drilling accuracy and consistency. Attached Figure Description

[0025] Figure 1 This is a perspective view of the double-head CNC side-hole machine in the embodiment;

[0026] Figure 2 This is a schematic diagram of the sub-worktable, positioning fixture, drill bit, and drive device in the embodiment.

[0027] Figure 3 This is a schematic diagram of the support platform in the embodiment.

[0028] Icon labels:

[0029] 1. Frame; 11. Worktable; 111. Sub-worktable; 12. Positioning fixture; 121. Fixed base; 1211. First limiting groove; 122. Lifting base; 1221. Second limiting groove; 123. Drive rod; 13. Support platform; 131. Roller; 132. Base; 133. Support frame; 134. Lifting mechanism; 14. Limiting channel;

[0030] 2. Drill bit;

[0031] 3. Drive unit; 31. X-axis drive mechanism; 32. Y-axis drive mechanism; 33. Z-axis drive mechanism;

[0032] 4. Pipe fittings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] This utility model provides a double-head CNC side-drilling machine to solve the problem of how to simultaneously drill holes at both ends of a pipe fitting 4.

[0035] See Figure 1 As shown, Figure 1 The image shown is a perspective view of a double-head CNC side-hole drilling machine in the embodiment. The double-head CNC side-hole drilling machine includes a frame 1, two drill bits 2, and two drive devices 3.

[0036] The frame 1 includes a worktable 11 and positioning fixtures 12. The positioning fixtures 12 are mounted on the worktable 11 by means of screwing or welding. The positioning fixtures 12 are arranged in pairs and are symmetrical to each other. The two positioning fixtures 12 in the same pair are used to clamp or release the two ends of the pipe fitting 4 respectively.

[0037] Two drill bits 2 are located on opposite sides of the worktable 11. Two drive units 3 are mounted on the frame 1 and are respectively connected to the two drill bits 2. The drive units 3 are used to drive the drill bits 2 to move relative to the worktable 11 to drill holes in the end face of the pipe fitting 4.

[0038] When using the above-described dual-head CNC side-drilling machine, firstly, the two ends of the pipe fitting 4 to be drilled are respectively fixed on two positioning fixtures 12 in the same group; then, the two drive devices 3 and two drill bits 2 are started. The two drive devices 3 drive the two drill bits 2 to move relative to the worktable 11 to simultaneously drill the two ends of the pipe fitting 4. It can be seen that, compared with the prior art, this utility model can drill the two ends of the pipe fitting 4 simultaneously, thereby greatly improving processing efficiency, solving the problem of repositioning the pipe fitting 4, and improving drilling accuracy and consistency.

[0039] The aforementioned drill bit 2 can be composed of existing drill bits, a tool holder, and a rotating mechanism. In this way, the appropriate drill bit can be selected according to the actual hole diameter and installed on the tool holder. During drilling, the rotating mechanism drives the tool holder and the drill bit on it to rotate together, while the driving device 3 drives the drill bit 2 to move along the depth direction of the hole, thereby realizing the drilling of the end of the pipe fitting 4.

[0040] See Figure 1As shown, in one embodiment of the workbench 11, the workbench 11 includes two spaced-apart sub-workbench 111s. Two positioning fixtures 12 of the same group are respectively mounted on the two sub-workbench 111s by means of screwing or welding. Two drill bits 2 are respectively located on opposite sides of the two sub-workbench 111s. The frame 1 also includes at least one support platform 13, which is located between the two sub-workbench 111s and is used to support the pipe fitting 4. Thus, the worktable 11 of this utility model is composed of two spaced sub-worktables 111. Compared with the existing worktables 11 with fixed dimensions, the length of the worktable 11 composed in this way can be adjusted according to the actual length of the pipe 4 to be drilled, so as to clamp and process pipes 4 of different lengths, especially longer pipes 4, which greatly improves the applicability of the side-drilling machine and greatly reduces the manufacturing cost of the equipment. If the pipe 4 to be drilled is long, the middle part of the pipe 4 is prone to bending downward, which may cause the two ends of the pipe 4 to tilt upward, thereby affecting the positioning accuracy of the end of the pipe 4, and even causing violent jumping during the drilling process, affecting the drilling accuracy and quality. The support table 13 can support the pipe 4, effectively improving the downward bending of the middle part of the pipe 4, reducing the jumping amplitude during the drilling process, and thus improving the drilling quality.

[0041] See Figure 1 and Figure 3 As shown, Figure 3 The diagram illustrates the structure of the support platform in this embodiment. Based on the above embodiment, the support platform 13 is slidably connected to the frame 1, and there are at least two support platforms 13. At least one roller 131 for supporting the pipe fitting 4 is rotatably connected to the top surface of the support platform 13. The axis of the roller 131 is perpendicular to the axis of the pipe fitting 4 clamped on the worktable 11. Thus, the sliding support platform 13 can change its support position for the pipe fitting 4 according to its actual length, greatly improving the applicability of the double-head CNC side-drilling machine. Furthermore, the support platform 13, by supporting the pipe fitting 4 through the rotatable roller 131, can reduce wear between the pipe fitting 4 and the roller 131, thus protecting the surface quality of the pipe fitting 4. The more support platforms 13 and rollers 131 there are, the better the support effect on the pipe fitting 4, the better it can mitigate the downward bending of the middle part of the pipe fitting 4, and improve the drilling quality.

[0042] See Figure 1 and Figure 3As shown, in one embodiment of the support platform 13, the support platform 13 includes a base 132, a support frame 133, and a lifting mechanism 134. The support frame 133 is slidably connected vertically above the base 132 and is used to support the pipe fitting 4. The lifting mechanism 134 is mounted on the base 132 by means of screws or welding, and the output end of the lifting mechanism 134 is connected to the support frame 133. The lifting mechanism 134 is used to drive the support frame 133 to move up and down, thereby adjusting the position of the support frame 133 in the vertical direction. Thus, this utility model can raise and lower the support frame 133 through the lifting mechanism 134 so that the support frame 133 contacts and supports the pipe fitting 4. Then, the lifting mechanism 134 continues to raise the support frame 133 a short distance, which can lift the middle part of the pipe fitting 4, further improving the downward bending of the middle part of the pipe fitting 4. It can be seen that the support platform 13 can adjust the support height of the pipe fitting 4, and is suitable for supporting pipe fittings 4 of different diameters, further improving the applicability of the side-hole drilling machine.

[0043] The aforementioned lifting mechanism 134 can use an existing hand-cranked screw jack, or an existing linear displacement drive mechanism such as a motor-screw-nut linear module or linear motor. The former has lower cost, while the latter offers a higher degree of automation; one can be selected based on the specific circumstances.

[0044] See Figure 1 and Figure 2 As shown, Figure 2 This is a schematic diagram of the sub-worktable, positioning fixture, drill bit, and drive device in an embodiment. Based on any of the above embodiments, the positioning fixture 12 is provided in at least two sets, with each set of positioning fixtures 12 equally spaced along the width direction of the worktable 11. Thus, during the drilling process of the drill bit 2 and drive device 3 to drill holes in the pipe fittings 4 clamped in one set of positioning fixtures 12, two pipe fittings 4 to be drilled can be clamped onto other sets of positioning fixtures 12, or the drilled pipe fittings 4 clamped on other sets of positioning fixtures 12 can be removed and replaced with pipe fittings 4 to be drilled. It can be seen that each set of positioning fixtures 12 is independent and does not affect each other; the loading and unloading of pipe fittings 4 and drilling operations can be performed simultaneously, further improving processing efficiency.

[0045] See Figure 2As shown, in one embodiment of the positioning fixture 12, the positioning fixture 12 includes a fixed base 121, a lifting base 122, and a drive rod 123. The fixed base 121 is mounted on the top surface of the worktable 11 by means of screwing or welding, and has a first limiting groove 1211. The lifting base 122 is slidably connected to the fixed base 121 vertically, and has a second limiting groove 1221. The openings of the second limiting groove 1221 and the first limiting groove 1211 are positioned opposite each other and combine to form a limiting channel 14. The second limiting groove 1221 and / or the first limiting groove 1211 are V-shaped. The drive rod 123 is screwed onto the fixed base 121 and fixedly connected to the lifting base 122. The drive rod 123 is used to drive the lifting base 122 to move up and down to adjust the size of the limiting channel 14. Thus, the spiral drive rod 123 can drive the lifting seat 122 to move up and down, thereby fixing the end of the pipe 4 in the limiting channel 14 and fixing the position of the pipe 4 on the worktable 11; while the V-shaped second limiting groove 1221 and / or the first limiting groove 1211 can be used to limit pipes 4 of different diameters, and restrict the axis of pipes 4 of different diameters to be located in the middle of the first limiting groove 1211.

[0046] See Figure 2 As shown, in one embodiment of the drive device 3, the drive device 3 includes an X-axis drive mechanism 31, a Y-axis drive mechanism 32, and a Z-axis drive mechanism 33. The X-axis drive mechanism 31 is mounted on the frame 1. The output end of the X-axis drive mechanism 31 is connected to the Y-axis drive mechanism 32, the output end of the Y-axis drive mechanism 32 is connected to the Z-axis drive mechanism 33, and the output end of the Z-axis drive mechanism 33 is connected to the drill bit 2. The X-axis drive mechanism 31 drives the drill bit 2 to move along the width direction of the worktable 11, the Y-axis drive mechanism 32 drives the drill bit 2 to move along the length direction of the worktable 11, and the Z-axis drive mechanism 33 drives the drill bit 2 to move along the height direction of the worktable 11. Thus, the drive device 3, through the cooperation of the X-axis drive mechanism 31, the Y-axis drive mechanism 32, and the Z-axis drive mechanism 33, can drive the drill bit 2 to drill at any position on the end of the pipe fitting 4.

[0047] The aforementioned X-axis drive mechanism 31, Y-axis drive mechanism 32, and Z-axis drive mechanism 33 can all adopt linear displacement drive mechanisms such as motor-screw-nut linear modules or linear motors.

[0048] If the holes to be drilled in the pipe fitting 4 are located on the same straight line, the aforementioned drive device 3 can also use only two of the X-axis drive mechanism 31, Y-axis drive mechanism 32 and Z-axis drive mechanism 33 to drive the drill bit 2 to move along the straight line and along the drilling depth direction to achieve drilling.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-end numerical control side hole machine characterized by, The utility model relates to a pipe drilling device, including: A rack including a workbench and positioning fixtures, the positioning fixtures are symmetrically arranged on the workbench in pairs, and two positioning fixtures in the same group are used for clamping or loosening two ends of a pipe respectively; Two drill bits and two driving devices, the two drill bits are arranged on two sides of the workbench respectively, and the two driving devices are arranged on the rack and are in transmission connection with the two drill bits respectively, the driving device is used for driving the drill bit to move relative to the workbench to drill the end face of the pipe; The positioning fixture includes: A fixed seat arranged on the top surface of the workbench and provided with a first limiting groove; A lifting seat vertically slidingly arranged on the fixed seat and provided with a second limiting groove, the slot opening of the second limiting groove and the slot opening of the first limiting groove are oppositely arranged and combined to form a limiting channel, and the second limiting groove and / or the first limiting groove are V-shaped; A driving rod screwed on the fixed seat and fixedly connected with the lifting seat, the driving rod is used to drive the lifting seat to move up and down to adjust the size of the limiting channel.

2. Double-end numerical control side hole machine according to claim 1, characterized in that, The workbench includes two sub-workbenches distributed at intervals, two positioning fixtures in the same group are arranged on the two sub-workbenches respectively, and the two drill bits are located on the opposite sides of the two sub-workbenches respectively; The rack further includes at least one support table arranged between the two sub-workbenches for supporting the pipe.

3. Double-end numerical control side hole machine according to claim 2, characterized in that, The number of support tables is at least two, and the support tables are slidingly arranged on the rack, the top surface of the support table is rotatably provided with at least one roller for supporting the pipe, and the axis of the roller is perpendicular to the axis of the pipe clamped on the workbench.

4. Double-end numerical control side hole machine according to claim 2 or 3, characterized in that, The support table includes a base, a support frame and a lifting mechanism, the support frame is vertically slidingly arranged above the base and is used for supporting the pipe, the lifting mechanism is arranged on the base, the output end of the lifting mechanism is connected with the support frame, and the lifting mechanism is used to drive the support frame to move up and down to adjust the position of the support frame in the vertical direction.

5. Double-end numerical control side hole machine according to any one of claims 1-3, characterized in that, The positioning fixture is provided with at least two groups, and each group of positioning fixtures is arranged at equal intervals along the width direction of the workbench.

6. Double-end numerical control side hole machine according to any one of claims 1-3, characterized in that, The driving device includes an X-axis driving mechanism, a Y-axis driving mechanism and a Z-axis driving mechanism, the X-axis driving mechanism is arranged on the rack, the output end of the X-axis driving mechanism is connected with the Y-axis driving mechanism, the output end of the Y-axis driving mechanism is connected with the Z-axis driving mechanism, and the output end of the Z-axis driving mechanism is connected with the drill bit; Among them, the X-axis driving mechanism is used for driving the drill bit to move along the width direction of the workbench, the Y-axis driving mechanism is used for driving the drill bit to move along the length direction of the workbench, and the Z-axis driving mechanism is used for driving the drill bit to move along the height direction of the workbench.

Images