A punching device for office table production
By adopting an internal drilling and detachable drill bit design in the production of office desks, the problems of damage to the decorative surface and coaxiality of the hole axis caused by traditional drilling methods have been solved, achieving efficient and precise drilling operations, reducing production costs and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN GAOLE SHENGAO FURNITURE CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-06-23
AI Technical Summary
In current office desk production, the traditional method of drilling holes from the outside can easily damage the decorative surface of the table legs, and it is difficult to ensure the coaxiality of the hole axis and the table leg axis, affecting product quality and aesthetics.
The method of drilling holes from the inner wall of the desk leg is adopted. Multiple drill bits are distributed in a circular array along the rotation center of the adjustment part. The internal adjustment shell center is used as a reference for synchronous feeding. Combined with the detachable drill bit design, drilling accuracy and convenient replacement are ensured.
It avoids damage to the decorative surface, reduces rework costs, improves drilling accuracy and product quality, simplifies the operation process, and enhances production efficiency and product aesthetics.
Smart Images
Figure CN224391386U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of office desk manufacturing technology, specifically a punching device for office desk manufacturing. Background Technology
[0002] In office desk manufacturing, drilling is a crucial process. It typically involves creating necessary holes in various components such as the desktop and legs for connecting, securing, and installing accessories. This process not only ensures the stability of the office desk structure but also improves production efficiency and convenience.
[0003] Utility model patent CN222309131U discloses a drilling device for office desk and chair production, including a hydraulic rod mounted on a workbench and a drill bit located below the hydraulic rod. The upper end of the drill bit is connected to the lower end of the hydraulic rod via a mounting structure. A mounting plate is fixed to one side of the mounting structure, and a rotatable connecting rod is mounted on the mounting plate. A laser light is fixed to the other end of the connecting rod. The device is characterized by a laser light positioned on one side of the drill bit, with the laser beam aligned vertically with the drill bit's axis. Before drilling, the worker places the workpiece on the workbench, which already has drilling marks. After turning on the laser light, the worker adjusts the position of the workpiece to align the drilling marks with the laser beam. Subsequently, a fixing mechanism is activated to secure the workpiece, ensuring accurate alignment of the drill bit and the marks, preventing hole position deviations during drilling. This facilitates precise control of the markings and drill bit positions, reducing the problem of inaccurate hole placement.
[0004] However, this existing technology, when drilling holes in office desk legs, uses the conventional method of drilling from the outside. This is highly susceptible to damage to the carefully designed decorative surface on the outside of the desk legs due to operational errors, drill bit slippage, or other issues. Once the decorative surface is damaged, rework is required, which undoubtedly increases production costs significantly and extends the production cycle. Moreover, this traditional drilling method relies heavily on the outer wall reference for positioning. When the outer wall surface of the desk leg is uneven or there are installation errors, it is difficult to ensure the coaxiality of the hole axis with the desk leg axis, resulting in drill deviation and affecting the overall quality and aesthetics of the product. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model provides the following technical solution: A drilling device for office desk production, comprising a drilling section for drilling, the drilling section being rotatably mounted on an adjusting section, the adjusting section being used to adjust the position of the drilling section; the drilling section includes a drill bit, the drill bit being detachably mounted inside a drilling mounting shaft via a drilling mounting ring, the drilling mounting ring being rotatably mounted on the drilling mounting shaft; the drill bit is slidably engaged with a drilling limiting ring slidably mounted inside the drilling mounting shaft, a drilling mounting spring being provided between the drilling limiting ring and the drilling mounting shaft, the drilling mounting shaft being mounted on a drilling bevel gear via a spline, a drilling return spring being provided between the drilling bevel gear and the drilling mounting shaft; the drilling bevel gear is rotatably mounted on the adjusting section, the adjusting section including an adjusting housing that rotatably engages with the drilling bevel gear, an adjusting motor two being fixedly mounted on the adjusting housing, an adjusting gear disk being fixedly mounted on the output shaft of the adjusting motor two, the adjusting gear disk meshing with the drilling bevel gear, and the drilling mounting shaft being slidably engaged with an adjusting cone fixedly mounted on the output shaft of an adjusting electric cylinder to adjust its radial position.
[0006] Furthermore, an adjustment guide post and an adjustment screw are fixedly provided on the top of the adjustment housing. The adjustment screw is threadedly engaged with an adjustment shaft that is rotatably mounted on the clamping part. The adjustment shaft is mounted on the output shaft of the adjustment motor one via an adjustment belt.
[0007] Furthermore, the clamping part includes a clamping bracket that rotates with the adjusting shaft. Clamping screws are threaded onto the side walls on both sides of the clamping bracket. A clamping head is rotatably provided at one end of the clamping screw, and the clamping head is slidably mounted on the clamping bracket via a guide post.
[0008] Furthermore, the clamping head is provided with a protrusion for increasing friction, the protrusion being made of rubber material.
[0009] Furthermore, a handle is fixedly provided at the other end of the clamping screw, and the handle is provided with rubber protrusions for increasing friction.
[0010] Furthermore, the drilling mounting groove extends axially along the drilling mounting ring and penetrates both ends of the drilling mounting ring body, forming a through structure.
[0011] Furthermore, the drilling mounting groove extends axially along the drilling mounting ring and forms an opening only on one side surface of the drilling mounting ring body, without penetrating the opposite ends of the drilling mounting ring body, thus forming a non-through structure.
[0012] The advantages of this utility model compared with the prior art are:
[0013] 1. Avoid damage to decorative surfaces and reduce rework costs: Unlike traditional methods of drilling from the outside, this device uses an inner drilling method from the wall of the desk leg, effectively avoiding damage to the carefully designed decorative surface on the outside of the desk leg due to operational errors or drill bit slippage. This greatly reduces rework caused by damage to the decorative surface, lowers production costs, and shortens the production cycle.
[0014] 2. Improved Drilling Accuracy and Product Quality: Multiple drill bits are arranged in a circular array around the rotation center of the adjustment unit, and feed synchronously with the center of the internal adjustment housing as a reference. This allows for direct positioning using the geometric center of the desk leg cavity. This positioning method reduces reliance on the external wall reference, avoiding drilling deviation caused by unevenness of the external wall surface or installation errors. It ensures the coaxiality of the hole axis and the desk leg axis, thereby improving the overall quality and aesthetics of the product.
[0015] 3. Convenient Drill Bit Replacement Design: Operators can manually push the drill bit to disengage the stop plate from the drilling limit groove, and then rotate the drilling mounting ring to align the drilling mounting groove with the stop plate for quick drill bit removal. For installation, align the stop plate with the drilling mounting groove, then rotate the drilling mounting ring to the initial position; the drilling mounting spring will then facilitate quick installation. This design allows operators to quickly change drill bits according to different drilling needs, improving the equipment's flexibility and ease of operation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a frontal view of the overall structure of this utility model.
[0018] Figure 3 This is a side view of the overall structure of this utility model.
[0019] Figure 4 This is a schematic diagram of a partial structure of the drilling part of this utility model. Figure 1 .
[0020] Figure 5 This is a partial structural cross-sectional view of the drilling section of this utility model.
[0021] Figure 6 This is a schematic diagram of a partial structure of the drilling part of this utility model. Figure 2 .
[0022] Figure 7 This is a schematic diagram of a partial structure of the drilling part of this utility model. Figure 3 .
[0023] Figure 8 This is a partial structural diagram of the drilling and mounting ring of this utility model.
[0024] Figure 9 A partial cross-sectional view of the drilling mounting ring of this utility model. Figure 1 .
[0025] Figure 10 A partial cross-sectional view of the drilling mounting ring of this utility model. Figure 2 .
[0026] Figure 11 This is a partial structural diagram of the adjustment part of this utility model.
[0027] Figure 12 This is a partial structural cross-sectional view of the adjustment part of this utility model.
[0028] Reference numerals: 1-Drilling section; 2-Adjusting section; 3-Clamping section; 101-Drill bit; 102-Drilling limit ring; 103-Drilling mounting spring; 104-Drilling mounting shaft; 105-Drilling return spring; 106-Drilling bevel gear; 107-Drilling mounting ring; 108-Drilling mounting groove; 109-Drilling limit groove; 201-Adjusting housing; 202-Adjusting guide post; 203-Adjusting motor one; 204-Adjusting belt; 205-Adjusting shaft; 206-Adjusting screw; 207-Adjusting motor two; 208-Adjusting gear disc; 209-Adjusting cone; 210-Adjusting electric cylinder; 301-Clamping head; 302-Clamping screw; 303-Clamping bracket. Detailed Implementation
[0029] 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.
[0030] like Figures 1 to 12 As shown, a drilling device for office desk production includes a drilling part 1, an adjusting part 2, and a clamping part 3. The drilling part 1 is used for drilling holes, and the drilling part 1 is rotatably mounted on the adjusting part 2, which is used to adjust the position of the drilling part 1. The adjusting part 2 is adjustablely mounted on the clamping part 3, which is used to clamp the table legs. The drilling parts 1 are arranged in a circular array along the rotation center of the adjusting part 2.
[0031] like Figures 1 to 12As shown, the drilling section 1 includes a drill bit 101, a drilling limiting ring 102, a drilling mounting spring 103, a drilling mounting shaft 104, a drilling return spring 105, a drilling bevel gear 106, a drilling mounting ring 107, a drilling mounting groove 108, and a drilling limiting groove 109. The drill bit 101 is detachably mounted inside the drilling mounting shaft 104 via the drilling mounting ring 107. The drilling mounting ring 107 is rotatably mounted on the drilling mounting shaft 104, and is provided with... The device includes a drilling mounting groove 108 and a drilling limiting groove 109. The drilling mounting groove 108 extends axially along the body of the drilling mounting ring 107, with one end opening at the first axial end face of the body and the other end opening at the second axial end face. The internal space of the drilling mounting groove 108 completely penetrates the body of the drilling mounting ring 107 axially, forming a through-hole structure that passes through both ends of the body of the drilling mounting groove 108. The drilling limiting groove 109 also extends axially along the body of the drilling mounting ring 107, with its opening only located at the first axial end face of the body. The drilling limiting groove 109 extends axially into the body of the drilling mounting ring 107 and terminates before reaching the second axial end face, forming a blind groove structure with a bottom, meaning that the drilling limiting groove 109 does not penetrate the opposite ends of the body of the drilling mounting ring 107. Two stop plates are provided on the drill bit 101. The stop plates cooperate with the insertion groove on the drilling mounting shaft 104 to limit the position of the drill bit 101. The drill bit 101 is slidably engaged with the drilling limiting ring 102 which is slidably disposed in the drilling mounting shaft 104. A drilling mounting spring 103 is provided between the drilling limiting ring 102 and the drilling mounting shaft 104. The drilling mounting shaft 104 is mounted on the drilling bevel gear 106 via a spline. A drilling return spring 105 is provided between the drilling bevel gear 106 and the drilling mounting shaft 104.
[0032] like Figures 1 to 12 As shown, the drilling bevel gear 106 is rotatably mounted on the adjustment unit 2. The adjustment unit 2 includes an adjustment housing 201, an adjustment guide post 202, an adjustment motor 1 203, an adjustment belt 204, an adjustment shaft 205, an adjustment screw 206, an adjustment motor 207, an adjustment gear disk 208, an adjustment cone 209, and an adjustment electric cylinder 210. The adjustment housing 201 is rotatably engaged with the drilling bevel gear 106. The adjustment motor 207 is fixedly mounted on the adjustment housing 201. The adjustment gear disk 208 is fixedly mounted on the output shaft of the adjustment motor 207. The adjustment gear disk 208 meshes with the drilling bevel gear 106. The drilling mounting shaft 104 is slidably engaged with the adjustment cone 209 fixedly mounted on the output shaft of the adjustment electric cylinder 210 to adjust its radial position. The top of the adjusting housing 201 is fixedly provided with an adjusting guide post 202 and an adjusting screw 206. The adjusting screw 206 is threadedly engaged with the adjusting shaft 205 rotatably mounted on the clamping part 3. The adjusting shaft 205 is mounted on the output shaft of the adjusting motor 203 via an adjusting belt 204.
[0033] like Figures 1 to 12 As shown, the clamping part 3 includes a clamping head 301, a clamping screw 302, and a clamping bracket 303. The clamping bracket 303 is rotatably engaged with the adjusting shaft 205. Clamping screws 302 are threaded onto both sides of the sidewalls of the clamping bracket 303. A clamping head 301 is rotatably mounted on one end of each clamping screw 302. The clamping head 301 is slidably mounted on the clamping bracket 303 via guide posts. The clamping head 301 has protrusions made of rubber to increase friction. A handle is fixedly mounted on the other end of the clamping screw 302, and the handle has rubber protrusions to increase friction.
[0034] like Figures 1 to 12 As shown, this utility model discloses a drilling device for office desk production. Its working principle is as follows: The office desk leg or other cylindrical component requiring drilling is inserted through the circular hollow structure at the bottom of the clamping bracket 303. The operator manually turns the handle on the clamping screw 302. The rotation of the handle causes the clamping screw 302 to rotate, which in turn causes the clamping head 301 to slide on the clamping bracket 303, clamping the office desk leg requiring drilling. The adjusting motor 203 is then turned on. The adjusting motor 203 rotates, causing the adjusting belt 204 to rotate, which in turn rotates the adjusting shaft 205. The rotation of the adjusting shaft 205 causes the adjusting screw 206 and the adjusting housing 201 to move vertically, allowing the adjusting housing 201 to extend into the office desk leg. The adjusting housing is controlled by controlling the adjusting motor 203. The distance 201 extends into the interior of the office desk leg is used for positioning. When the position of the adjusting housing 201 is moved to the appropriate position, the second adjusting motor 207 is turned on. The rotation of the second adjusting motor 207 drives the adjusting gear disk 208 to rotate, which in turn drives the drilling bevel gear 106 to rotate. The rotation of the drilling bevel gear 106 drives the drilling mounting shaft 104 and the drill bit 101 mounted on the drilling mounting shaft 104 to rotate. At the same time, the adjusting electric cylinder 210 is turned on, which drives the adjusting cone head 209 to slide along the guide rail, pushing the drilling mounting shaft 104 to move in the radial direction of the adjusting housing 201. When the drilling mounting shaft 104 moves, it drives the drill bit 101 to move, drilling a hole in the inner wall of the office desk leg. This avoids damage to the decorative surface on the outside of the desk leg due to operational errors or drill bit slippage during the drilling process, thus reducing rework costs.
[0035] Multiple drill bits 101 arranged in a circular array simultaneously drill holes in the inner wall of the office desk leg. The drill bits 101 feed synchronously with the center of the internal adjusting housing 201 as the reference, which can directly utilize the geometric center of the office desk leg cavity for positioning, reducing dependence on the external wall reference and avoiding drilling deviation caused by unevenness of the external wall surface or installation errors, ensuring the coaxiality of the hole axis and the table leg axis. At the same time, multi-hole synchronous processing greatly improves efficiency, simplifies the clamping and positioning process and subsequent processing steps, and is suitable for processing hollow tubular components such as office desk legs.
[0036] Depending on the drilling requirements, the operator manually pushes the drill bit 101, causing it to slide towards the drilling mounting spring 103. The stop plate on the drill bit 101 exits the drilling limiting groove 109. Then, the operator rotates the drilling mounting ring 107 so that the drilling mounting groove 108 aligns with the stop plate. Since the drilling mounting groove 108 is a through-hole design, the stop plate slides out, allowing for quick disassembly of the drill bit 101. During installation, the stop plate on the drill bit 101 is aligned with the drilling mounting groove 108 and installed into the drilling mounting shaft 104. Then, the drilling mounting ring 107 is rotated to the initial position. At this point, under the action of the drilling mounting spring 103, the drilling limiting ring 102 pushes the stop plate on the drill bit 101 into the drilling limiting groove 109, achieving quick installation and facilitating rapid replacement of the drill bit 101 by the operator.
Claims
1. A punching device for manufacturing office desks, characterized in that: It includes a drilling section (1) for drilling holes, the drilling section (1) being rotatably mounted on an adjustment section (2), the adjustment section (2) being used to adjust the position of the drilling section (1); The drilling section (1) includes a drill bit (101), which is detachably mounted inside a drilling mounting shaft (104) via a drilling mounting ring (107). The drilling mounting ring (107) is rotatably mounted on the drilling mounting shaft (104). The drill bit (101) is slidably engaged with a drilling limiting ring (102) that is slidably mounted inside the drilling mounting shaft (104). A drilling mounting spring (103) is provided between the drilling limiting ring (102) and the drilling mounting shaft (104). The drilling mounting shaft (104) is mounted on a drilling bevel gear (106) via a spline. A drilling return spring (105) is provided between the drilling bevel gear (106) and the drilling mounting shaft (104). The drilling bevel gear (106) is rotatably mounted on the adjustment unit (2). The adjustment unit (2) includes an adjustment housing (201) that rotatably engages with the drilling bevel gear (106). An adjustment motor (207) is fixedly mounted on the adjustment housing (201). An adjustment gear disk (208) is fixedly mounted on the output shaft of the adjustment motor (207). The adjustment gear disk (208) meshes with the drilling bevel gear (106). The drilling mounting shaft (104) slides with the adjustment cone (209) fixedly mounted on the output shaft of the adjustment electric cylinder (210) to adjust its radial position.
2. The punching device for office desk production according to claim 1, characterized in that: The top of the regulating housing (201) is fixedly provided with an regulating guide post (202) and an regulating screw (206). The regulating screw (206) is threadedly engaged with the regulating shaft (205) rotatably mounted on the clamping part (3). The regulating shaft (205) is mounted on the output shaft of the regulating motor (203) via an regulating belt (204).
3. The punching device for office desk production according to claim 2, characterized in that: The clamping part (3) includes a clamping bracket (303) that rotates with the adjusting shaft (205). Clamping screws (302) are threaded on both sides of the clamping bracket (303). A clamping head (301) is rotatably provided at one end of the clamping screw (302). The clamping head (301) is slidably disposed on the clamping bracket (303) through a guide post.
4. The punching device for office desk production according to claim 3, characterized in that: The clamping head (301) is provided with a protrusion for increasing friction, the protrusion being made of rubber material.
5. A punching device for office desk production according to claim 4, characterized in that: A handle is fixedly provided at the other end of the clamping screw (302), and the handle is provided with rubber protrusions for increasing friction.
6. The punching device for office desk production according to claim 1, characterized in that: The drilling mounting ring (107) is provided with a drilling mounting groove (108), which extends axially along the drilling mounting ring (107) and penetrates the opposite ends of the drilling mounting ring (107) body to form a through structure.
7. A punching device for office desk production according to claim 1, characterized in that: The drilling mounting ring (107) is provided with a drilling limiting groove (109). The drilling limiting groove (109) extends axially along the drilling mounting ring (107) and forms an opening only on one side surface of the drilling mounting ring (107) body. It does not penetrate through the opposite ends of the drilling mounting ring (107) body, forming a non-through structure.