A clamping mechanism of a tapping machine for bolt processing

Abstract

The utility model relates to a kind of clamping mechanisms of tapping machine for bolt processing, to solve the technical problem that current bolt rod is prone to vibration displacement, leading to poor tapping accuracy, including vertical plate, the lower side of the front side wall of vertical plate is fixedly connected with first support plate, the lower side of the back side wall of vertical plate is fixedly connected with second support plate, the top of first support plate and second support plate is all opened with mounting hole, the front side wall of vertical plate is equipped with clamping mechanism, the top of second support plate is provided with limit mechanism, the upper side of the front side wall of vertical plate is equipped with replacement mechanism, the clamping mechanism includes cross bar, fixed slot, connecting shaft, electric push rod, locking screw, clamping plate, connecting seat, crank rod and fixed shaft, the cross bar is located in the front side wall middle of vertical plate, the utility model can be stably clamped to the head and stem of bolt, effectively avoid bolt displacement in tapping process, ensure tapping accuracy, modular design, high processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tapping machine accessories, specifically a clamping mechanism for a tapping machine used for bolt processing. Background Technology

[0002] A tapping machine is an automated or semi-automated mechanical device specifically designed for machining internal threads (i.e., "tapping") on workpieces made of materials such as metal and plastic. It is widely used in the automotive, hardware, electronics, and machinery manufacturing industries, and is especially suitable for the mass production of threaded workpieces such as bolts, nuts, and flanges. Its core function is to cut or extrude internal threads that meet specifications in the pre-drilled hole of the workpiece through the relative rotation and feed motion of the "taper" (thread machining tool) and the workpiece, ensuring thread accuracy, perpendicularity, and surface quality.

[0003] Patent document CN221389812U discloses a clamping mechanism for a tapping machine used for bolt processing, specifically relating to the field of bolt processing technology. The mechanism includes a bolt rod, one end of which is fixedly connected to a bolt head. A bolt processing clamping block is clamped and fixed to the outer wall of the bolt head. A tapping machine clamping telescopic rod is fixedly connected to the outer end of the bolt processing clamping block, and a tapping machine connecting plate is fixedly connected to the outer wall of the bolt processing clamping block. A bolt processing clamping pad is adhered to the inner wall of the bolt processing clamping block, and a drive rod is fixedly connected to one end of the bolt processing clamping block. Through the mutual cooperation of the bolt processing clamping block, the tapping machine clamping telescopic rod, the second limiting groove, and the limiting block, the bolt processing clamping pad can be quickly disassembled after prolonged use, thereby reducing wear and ensuring the effectiveness of clamping the bolt processing clamping block, thus improving the efficiency of the clamping mechanism.

[0004] However, in practical applications, the aforementioned patent only clamps the bolt head with a clamping block, while the bolt shank lacks effective clamping. When tapping the bolt shank, the bolt shank is prone to vibration and displacement, resulting in poor tapping accuracy. For example, after the bolt head is clamped and fixed, if the bolt shank is long, when the tapping machine taps the end of the bolt shank, the tap will generate axial cutting force and radial torque on the bolt, causing the bolt to shift and resulting in tapping accuracy deviation. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a clamping mechanism for a tapping machine for bolt processing, so as to solve the technical problem that the bolt rod is prone to vibration and displacement, resulting in poor tapping accuracy.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a clamping mechanism for a tapping machine for bolt processing is designed, including a vertical plate, a first support plate is fixedly connected to the lower side of the front side wall of the vertical plate, a second support plate is fixedly connected to the lower side of the rear side wall of the vertical plate, mounting holes are opened on the top of the first support plate and the second support plate, a clamping mechanism is provided on the front side wall of the vertical plate, and a limit mechanism is provided on the top of the second support plate; A replacement mechanism is provided on the upper side of the front wall of the upright plate.

[0007] In this solution, the bolt head and bolt shank are clamped by a clamping mechanism and a limiting mechanism respectively, making the clamping more stable.

[0008] Preferably, the clamping mechanism includes a crossbar, a fixing groove, a connecting shaft, an electric push rod, a locking screw, a clamping plate, a connecting seat, a crank rod, and a fixing shaft. The crossbar is located in the middle of the front side wall of the upright plate. The fixing groove is opened at both ends of the crossbar. The connecting shaft is fixedly connected between the front and rear sides of the inner side wall of the fixing groove. The electric push rod is fixedly connected to the middle of the top rear side of the first support plate, and the output end of the electric push rod is fixedly connected to the middle of the bottom of the crossbar. The locking screw is screwed onto the left and right sides of the front side wall of the crossbar.

[0009] In practical applications, the crossbar is driven to move upward by an electric push rod, causing the curved rod to rotate inward, which in turn drives the clamping plate to clamp the bolt head inward, and the position of the crossbar is locked by a locking screw.

[0010] Preferably, the bottom end of the crank is rotatably connected to the outer wall of the connecting shaft, the fixed shaft is fixedly connected to the upper left and right sides of the front side wall of the upright plate, the middle part of the crank is movably sleeved on the outer wall of the fixed shaft, the connecting seat is fixedly connected to the middle of the outer wall of the clamping plate, and the top end of the crank is fixedly connected to the connecting end of the connecting seat.

[0011] In practical applications, when the crossbar moves upward, the crank rotates on the connecting shaft and rotates inward under the limitation of the fixed groove. The crank is rotated and connected to the connecting seat, so that the entire crank rotates inward synchronously.

[0012] Preferably, the crossbar has grooves on both sides of its rear sidewall, and the front sidewall of the upright plate is fixedly connected to slide rails on both sides, with the end of the locking screw extending into the inner cavity of the groove.

[0013] In practical applications, by setting up slides and rails, the crossbar becomes more stable during movement.

[0014] Preferably, the limiting mechanism includes a support base, a pressure cap, a threaded groove, and a second fixing screw. The support base is fixedly connected to the top middle of the second support plate, the pressure cap is hinged to the top of the support base, the threaded groove is opened at the top of the support base and the bottom of the pressure cap, and the second fixing screw is screwed to the top right side of the pressure cap.

[0015] In practical applications, the pressure cap presses the bolt rod into the support base, and the threaded groove inside the pressure cap engages with the thread on the bolt rod to increase friction. The pressure cap and the support base are then fixed together by a second fixing screw.

[0016] Preferably, the replacement mechanism includes a screw hole, a clamping washer, a connecting block, a connecting ring, and a first fixing screw. The screw hole is opened on the front side wall of the clamping plate, the clamping washer is located on the inner side wall of the clamping plate, and the connecting block is fixedly connected to the front side wall of the clamping washer.

[0017] In practical applications, different shaped clamps are used to align the connecting blocks and connecting rings with the screw holes.

[0018] Preferably, the connecting ring is fixedly connected to the end of the connecting block, and the connecting ring is located outside the screw hole. The first fixing screw movably passes through the inner cavity of the connecting ring and is screwed into the inner cavity of the screw hole.

[0019] In practical applications, the clamping pad is connected and fixed to the clamping plate by the first fixing screw, which allows for quick replacement of the clamping pad.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model combines a clamping mechanism and a limiting mechanism. A support base with a flip-over pressure cap is provided on the support base. The pressure cap and support base have semi-circular threaded grooves inside. The pressure cap is fixed to the support base with a second fixing screw, effectively limiting and fixing the bearing column. The threaded head is placed between the clamping plates. An electric push rod drives the crossbar to move upwards, and the bottom end of the crank rod rotates inwards synchronously. The top end of the crank rod clamps the threaded head inwards and is fixed with a locking screw. In summary, this design can stably clamp the head and shank of the bolt, effectively preventing bolt displacement during tapping and ensuring tapping accuracy.

[0021] 2. This utility model features a replacement mechanism structure. By setting screw holes in the clamping plate, and connecting blocks and connecting rings on the clamping pads to connect with the screw holes and fix them with the first fixing screw, different clamping pads can be quickly replaced according to different bolt head shapes, such as cylindrical head, hexagonal head, or countersunk head. The modular design results in high processing efficiency. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the clamping plate structure of this utility model; Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the support structure of this utility model.

[0023] In the diagram: 100, upright plate; 101, first support plate; 102, mounting hole; 103, crossbar; 104, fixing groove; 105, connecting shaft; 106, slide groove; 107, slide rail; 108, electric push rod; 109, locking screw; Clamping plate; 201, screw hole; 202, connecting seat; 203, crank; 204, fixed shaft; 301. Clamping pad; 302. Connecting block; 303. Connecting ring; 304. First fixing screw; 400. Second support plate; 401. Support base; 402. Pressure cap; 403. Threaded groove; 404. Second fixing screw. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: A clamping mechanism for a tapping machine used for bolt processing, see [link to example]. Figures 1 to 4The system includes a vertical plate 100, a first support plate 101 fixedly connected to the lower side of the front wall of the vertical plate 100, and a second support plate 400 fixedly connected to the lower side of the rear wall of the vertical plate 100. Mounting holes 102 are provided on the top of both the first support plate 101 and the second support plate 400. A clamping mechanism is provided on the front wall of the vertical plate 100, and a limit mechanism is provided on the top of the second support plate 400. The clamping mechanism includes a crossbar 103, a fixing groove 104, a connecting shaft 105, an electric push rod 108, a locking screw 109, a clamping plate 200, a connecting seat 202, a crank rod 203, and a fixing shaft 204. The crossbar 103 is located on the vertical plate 100. In the middle of the front side wall of the vertical plate 100, a fixing groove 104 is opened at both ends of the crossbar 103. A connecting shaft 105 is fixedly connected between the front and rear sides of the inner side wall of the fixing groove 104. An electric push rod 108 is fixedly connected to the middle of the top rear side of the first support plate 101, and the output end of the electric push rod 108 is fixedly connected to the middle of the bottom of the crossbar 103. A locking screw 109 is screwed to the left and right sides of the front side wall of the crossbar 103. The bottom end of the crank rod 203 is rotatably connected to the outer side wall of the connecting shaft 105. A fixing shaft 204 is fixedly connected to the upper sides of the left and right sides of the front side wall of the vertical plate 100. The middle part of the crank rod 203 is movably sleeved on the fixing shaft 204. The outer side wall of the clamping plate 200 is fixedly connected to the middle of the outer side wall of the clamping plate 200. The top end of the crank 203 is fixedly connected to the connecting end of the connecting seat 202. The limiting mechanism includes a support seat 401, a pressure cover 402, a threaded groove 403, and a second fixing screw 404. The support seat 401 is fixedly connected to the middle of the top of the second support plate 400. The pressure cover 402 is hinged to the top of the support seat 401. The threaded groove 403 is opened at the top of the support seat 401 and the bottom of the pressure cover 402. The second fixing screw 404 is screwed to the right side of the top of the pressure cover 402. By setting the support seat 401, a flip-type mechanism is set on the support seat 401. The pressure cap 402 and the support base 401 are provided with semi-circular threaded grooves 403. The pressure cap 402 is fixed to the support base 401 by the second fixing screw 404, which effectively limits and fixes the bearing column. The threaded head is placed between the clamping plates 200. The crossbar 103 is driven to move upward by the electric push rod 108. The bottom end of the crank 203 rotates inward synchronously. The top end of the crank 203 clamps the threaded head inward and fixes it by the locking screw 109. In summary, the head and shank of the bolt can be stably clamped, which effectively avoids the bolt displacement during the tapping process and ensures the tapping accuracy.

[0025] For details, see Figure 1 The horizontal bar 103 has sliding grooves 106 on both sides of its rear sidewall, and slide rails 107 are fixedly connected to both sides of the front sidewall of the vertical plate 100. The end of the locking screw 109 extends into the inner cavity of the sliding groove 106. By setting the sliding groove 106 and the slide rail 107, the horizontal bar 103 becomes more stable during movement.

[0026] It is worth mentioning that the replacement mechanism includes a screw hole 201, a clamping washer 300, a connecting block 301, a connecting ring 302, and a first fixing screw 303. The screw hole 201 is located on the front side wall of the clamping plate 200, the clamping washer 300 is located on the inner side wall of the clamping plate 200, the connecting block 301 is fixedly connected to the front side wall of the clamping washer 300, the connecting ring 302 is fixedly connected to the end of the connecting block 301, and the connecting ring 302 is located on the outer side of the screw hole 201. The first fixing screw 303 moves through the inner cavity of the connecting ring 302 and is screwed into the inner cavity of the screw hole 201. By setting the screw hole 201 on the clamping plate 200, and setting the connecting block 301 and the connecting ring 302 on the clamping washer 300 to connect with the screw hole 201 and fix them with the first fixing screw 303, different clamping washers 300 can be quickly replaced according to different bolt head shapes, such as cylindrical head, hexagonal head, or countersunk head. The modular design results in high processing efficiency.

[0027] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A clamping mechanism for a tapping machine for bolt processing, comprising a vertical plate (100), wherein a first support plate (101) is fixedly connected to the lower side of the front side wall of the vertical plate (100), and a second support plate (400) is fixedly connected to the lower side of the rear side wall of the vertical plate (100), wherein mounting holes (102) are provided on the top of both the first support plate (101) and the second support plate (400), characterized in that, The front side wall of the upright plate (100) is provided with a clamping mechanism, and the top of the second support plate (400) is provided with a limiting mechanism; A replacement mechanism is provided on the upper side of the front wall of the upright plate (100).

2. The clamping mechanism of a tapping machine for bolt processing as described in claim 1, characterized in that, The clamping mechanism includes a crossbar (103), a fixing groove (104), a connecting shaft (105), an electric push rod (108), a locking screw (109), a clamping plate (200), a connecting seat (202), a crank (203), and a fixing shaft (204). The crossbar (103) is located in the middle of the front side wall of the upright plate (100). The fixing groove (104) is opened at both ends of the crossbar (103). The connecting shaft (105) is fixedly connected between the front and rear sides of the inner side wall of the fixing groove (104). The electric push rod (108) is fixedly connected in the middle of the top rear side of the first support plate (101), and the output end of the electric push rod (108) is fixedly connected in the middle of the bottom of the crossbar (103). The locking screw (109) is screwed on the left and right sides of the front side wall of the crossbar (103).

3. The clamping mechanism of a tapping machine for bolt processing as described in claim 2, characterized in that, The bottom end of the crank (203) is rotatably connected to the outer wall of the connecting shaft (105). The fixed shaft (204) is fixedly connected to the upper left and right sides of the front side wall of the upright plate (100). The middle part of the crank (203) is movably sleeved on the outer wall of the fixed shaft (204). The connecting seat (202) is fixedly connected to the middle of the outer wall of the clamp plate (200). The top end of the crank (203) is fixedly connected to the connecting end of the connecting seat (202).

4. The clamping mechanism of a tapping machine for bolt processing as described in claim 3, characterized in that, The crossbar (103) has grooves (106) on both sides of its rear sidewall, and slide rails (107) are fixedly connected to both sides of the front sidewall of the upright plate (100). The end of the locking screw (109) extends into the inner cavity of the groove (106).

5. The clamping mechanism of a tapping machine for bolt processing as described in claim 1, characterized in that, The limiting mechanism includes a support base (401), a pressure cap (402), a threaded groove (403), and a second fixing screw (404). The support base (401) is fixedly connected to the top middle of the second support plate (400). The pressure cap (402) is hinged to the top of the support base (401). The threaded groove (403) is opened at the top of the support base (401) and the bottom of the pressure cap (402). The second fixing screw (404) is screwed to the top right side of the pressure cap (402).

6. The clamping mechanism of a tapping machine for bolt processing as described in claim 4, characterized in that, The replacement mechanism includes a screw hole (201), a clamping pad (300), a connecting block (301), a connecting ring (302), and a first fixing screw (303). The screw hole (201) is opened on the front side wall of the clamping plate (200), the clamping pad (300) is located on the inner side wall of the clamping plate (200), and the connecting block (301) is fixedly connected to the front side wall of the clamping pad (300).

7. The clamping mechanism of a tapping machine for bolt processing as described in claim 6, characterized in that, The connecting ring (302) is fixedly connected to the end of the connecting block (301), and the connecting ring (302) is located outside the screw hole (201). The first fixing screw (303) is movably inserted through the inner cavity of the connecting ring (302) and screwed into the inner cavity of the screw hole (201).

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