A drilling and tapping device

Abstract

This utility model discloses a drilling and tapping device, including: a base plate, a support frame, a clamping assembly, and a fixing mechanism. The fixing mechanism is mounted on a fixed frame and includes: a pair of first slide rails, a pair of second slide rails, a pair of vertical rods, and a pair of horizontal rods. The pair of first slide rails and the pair of second slide rails are respectively fixed within the four side walls of the fixed frame, and a pair of first sliders are slidably mounted on each of the pair of first slide rails and the pair of second slide rails. Both ends of the pair of vertical rods slide within the first sliders on the pair of first slide rails, and both ends of the pair of horizontal rods slide within the first sliders on the pair of second slide rails. Cross connectors are installed at the intersections of the pair of vertical rods and the pair of horizontal rods, and both the vertical rods and horizontal rods slide within the cross connectors. Multiple first sliders are provided between the first sliders and the first and second slide rails. This utility model, through its structural design, reduces the steps of repeatedly clamping and fixing the product, thereby effectively improving drilling and tapping efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of drilling and tapping technology, and specifically relates to a drilling and tapping device. Background Technology

[0002] A drilling and tapping machine is a high-precision CNC device used for drilling and tapping metal materials. It combines the functions of a drilling machine and a tapping machine, allowing drilling and tapping operations to be completed on the same machine, improving production efficiency and reducing equipment investment.

[0003] When drilling holes in a product, drilling and tapping equipment typically uses clamping devices to hold the product in place and prevent it from shifting during drilling. However, when drilling multiple points on a single product is required, the clamping devices need to be repeatedly used to clamp and release the product to adjust the appropriate drilling position. This significantly reduces the processing efficiency when drilling multiple points on a single product.

[0004] Therefore, it is necessary to provide a drilling and tapping device to address the aforementioned technical problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a drilling and tapping device that can solve the problem of low processing efficiency caused by the need to repeatedly clamp and loosen the product when drilling and tapping multiple points on a product.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows: A drilling and tapping device includes: a base plate, a support frame, a clamping assembly, and a fixing mechanism.

[0008] A fixed frame is fixed to the base plate. The support frame is fixed to the fixed frame, and a telescopic rod is installed on the support frame. A drilling machine is installed at one end of the telescopic rod inside the support frame. The clamping assembly is installed at the end of the telescopic rod near the fixed frame and is used to clamp the workpiece during drilling.

[0009] The fixing mechanism is mounted on a fixed frame and includes: a pair of first slide rails, a pair of second slide rails, a pair of vertical rods, and a pair of horizontal rods. The pair of first slide rails and the pair of second slide rails are respectively fixed within the four side walls of the fixed frame, and a pair of first sliders are slidably mounted on each of the pair of first slide rails and the pair of second slide rails. Both ends of the pair of vertical rods slide within the first sliders on the pair of first slide rails, and both ends of the pair of horizontal rods slide within the first sliders on the pair of second slide rails. Cross connectors are installed at the intersections of the pair of vertical rods and the pair of horizontal rods, and both vertical rods and horizontal rods slide within the cross connectors. Locking assemblies are provided between each of the multiple first sliders and the first and second slide rails. Locking components are provided on both pairs of cross connectors.

[0010] In one embodiment of this utility model, the clamping assembly includes: a fixed plate, a pair of first sliding rods, and a pair of first compression springs. The fixed plate is fixed to one end of the telescopic rod near the fixed frame. The pair of first sliding rods slide on both ends of the fixed plate and are located on both sides of the drilling machine. A pressure head is fixed to the bottom end of each pair of first sliding rods. The pair of first compression springs are respectively installed between the pair of pressure heads and the fixed plate, and are respectively sleeved on the pair of first sliding rods. The bottom end of the pressure head is lower than the lowest end of the drill bit of the drilling machine.

[0011] When the telescopic rod moves the drilling machine downwards to drill the workpiece, the bottom of the pressure head will first contact the workpiece being drilled. At this time, the telescopic rod continues to move the drilling machine and the fixed plate downwards. The downward movement of the fixed plate will compress a pair of first compression springs. The reverse elastic force of the first compression springs after being compressed will push the pressure head towards the workpiece being drilled, thereby pressing the workpiece tightly with the pressure head.

[0012] In one embodiment of this utility model, a drilling groove is provided on the base plate directly below the drilling machine. The drilling groove is used to prevent the drilling machine from continuing to move downward after drilling the workpiece and causing damage to the base plate.

[0013] In one embodiment of this utility model, clamping angles are provided at the corners of the two pairs of cross connectors that are close to each other. When a pair of vertical bars and a pair of horizontal bars clamp the workpiece, the clamping angles on the two pairs of cross connectors clamp the four corners of the workpiece respectively.

[0014] In one embodiment of this utility model, each of the first sliders is provided with a first sliding groove, and both ends of the vertical rod and the horizontal rod slide within the first sliding groove. The ends of the vertical rod and the horizontal rod slide within the first sliding groove, thereby achieving a sliding connection with the first slider.

[0015] In one embodiment of this utility model, the locking assembly includes: a lock body, a locking ball, and multiple locking slots. The lock body is fixed to the side wall of a first slider. The locking ball is installed inside the lock body, with one end extending outside the lock body, and a second compression spring is installed between the locking ball and the inner wall of the lock body. The multiple locking slots are evenly excavated on a first slide rail or a second slide rail, and the end of the locking ball extending outside the lock body is engaged in one of the locking slots.

[0016] When the first slider slides on the first or second slide rail, it pushes the locking ball into the lock body. When the first slider stops sliding and is not subjected to external force, the elastic force of the second compression spring moves the locking ball towards the slot, so that the end of the locking ball located outside the lock body is locked in the slot, thereby stabilizing the first slider.

[0017] In one embodiment of this utility model, the cross connector is cross-shaped and has a pair of second sliding grooves cut out alternately in the upper and lower parts. The vertical rod and the horizontal rod slide in the pair of second sliding grooves respectively. The vertical rod and the horizontal rod slide in the pair of second sliding grooves to achieve a sliding connection with the cross connector.

[0018] In one embodiment of this utility model, the locking assembly includes: an outer frame, a lock head, a clamping block, and a pushing block. The outer frame is fixed to the side wall of the cross connector, and a control rod is threadedly connected to the top wall of the outer frame. A knob is fixed to one end of the control rod outside the outer frame. The lock head is fixed to one end of the control rod inside the outer frame, and the bottom end of the lock head is located in one of the second sliding grooves. The clamping block slides horizontally within the outer frame, and one end of the clamping block is located in the other second sliding groove. The pushing block slides up and down within the outer frame, and inclined pushing walls are provided between the pushing block and the clamping block to engage with each other. The pushing block is rotatably configured with respect to the control rod.

[0019] When it is necessary to secure the vertical and horizontal bars using the locking assembly, the control lever is rotated via a knob. Because the control lever is threaded to the top wall of the outer frame, it also moves up and down during rotation. First, rotating the control lever moves the lock head downwards, clamping its bottom wall onto the horizontal bar, thus securing the horizontal bar and the cross connector. Simultaneously, the rotation and downward movement of the control lever also moves the push block downwards. The push block, through its inclined push wall between itself and the clamping block, pushes the clamping block towards the vertical bar, clamping it and thus securing the vertical bar and the cross connector. This secures the cross connector to both the vertical and horizontal bars.

[0020] In one embodiment of this utility model, a pair of second sliders are fixed on the side walls of the clamping block. Both second sliders slide on the inner wall of the outer frame, and tension springs are installed between each pair of second sliders and the side walls of the outer frame. The clamping block slides horizontally within the outer frame by sliding on the two inner walls of the outer frame via the pair of second sliders on its side walls. Furthermore, the tension springs pull the clamping block towards the pushing block. When it is necessary to unlock the longitudinal rod and the cross connector, the pushing block moves upward, and the tension springs pull the clamping block towards the pushing block.

[0021] Compared with the prior art, the drilling and tapping equipment of this utility model, through related structural design, reduces the steps of repeatedly clamping and fixing the product when drilling and tapping multiple points on a product is required, thereby effectively improving drilling and tapping efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of a drilling and tapping device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the support frame in one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing frame and fixing mechanism in one embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first slider and the locking assembly in one embodiment of the present invention; Figure 5 This is a schematic diagram of the cross connector in one embodiment of the present invention.

[0024] Explanation of key figure labels: 1-Base plate, 101-Fixed frame, 102-Support frame, 103-Telescopic rod, 104-Drilling machine, 105-Fixed plate, 106-First slide rod, 107-Pressure head, 108-First compression spring, 109-Drill groove, 2-Fixed mechanism, 201-First slide rail, 202-Second slide rail, 203-Vertical rod, 204-Horizontal rod, 205-First slider, 206-Lock assembly, 207-Lock body, 208-Clamping ball, 209-Second compression spring, 210-Clamping groove, 211-Cross connector, 212-First slide groove, 213-Second slide groove, 214-Outer frame, 215-Control rod, 216-Lock head, 217-Push block, 218-Clamping block, 219-Knob, 220-Second slider, 221-Tension spring, 222-Clamping angle. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0026] like Figure 1-5 As shown, a drilling and tapping device according to one embodiment of the present invention includes: a base plate 1, a support frame 102, a clamping component and a fixing mechanism 2.

[0027] like Figure 1-5 As shown, a fixed frame 101 is fixed on the base plate 1. A support frame 102 is fixed to the fixed frame 101, and a telescopic rod 103 is installed on the support frame 102. A drilling machine 104 is installed at one end of the telescopic rod 103 inside the support frame 102. A clamping assembly is installed at the end of the telescopic rod 103 near the fixed frame 101 and is used to clamp the workpiece during drilling.

[0028] like Figure 1-5As shown, the fixing mechanism 2 is installed on the fixing frame 101. The fixing mechanism 2 includes: a pair of first slide rails 201, a pair of second slide rails 202, a pair of vertical rods 203, and a pair of horizontal rods 204. The pair of first slide rails 201 and the pair of second slide rails 202 are respectively fixed inside the four sides of the fixing frame 101. A pair of first sliders 205 are slidably arranged on each pair of first slide rails 201 and the pair of second slide rails 202. Both ends of the pair of vertical rods 203 slide within the first sliders 205 on the pair of first slide rails 201, and both ends of the pair of horizontal rods 204 slide within the first sliders 205 on the pair of second slide rails 202. A cross connector 211 is installed at the intersection of the pair of vertical rods 203 and the pair of horizontal rods 204, and both the vertical rods 203 and the horizontal rods 204 slide within the cross connector 211. Locking components 206 are provided between the multiple first sliders 205 and the first slide rails 201 and the second slide rails 202. Both pairs of cross connectors 211 are equipped with locking components.

[0029] This device is suitable for multi-point drilling operations on regular quadrilateral workpieces. A telescopic cylinder is connected to the top of the telescopic rod 103 to move the rod up and down. In use, the workpiece to be drilled is placed between a pair of vertical rods 203 and a pair of horizontal rods 204. Then, the vertical rods 203 and horizontal rods 204 are pushed closer to the workpiece, clamping it between them. Subsequently, two pairs of locking components fix two pairs of cross connectors 211 to the vertical rods 203 and horizontal rods 204, thus securing the vertical rods 203 and horizontal rods 204 and fixing the clamping of the workpiece. Finally, the entire assembly of the vertical rods 203, horizontal rods 204, and workpiece is slid to move the workpiece to the bottom of the drilling machine 104. After the position is moved, the locking assembly 206 on each first slider 205 will automatically lock the first slider 205 to prevent the workpiece from moving.

[0030] During drilling, the telescopic rod 103 drives the drilling machine 104 and the clamping assembly downwards. The bottom end of the clamping assembly first contacts the upper surface of the workpiece. As the telescopic rod 103 continues to drive the drilling machine 104 downwards, the clamping assembly clamps the workpiece to prevent it from shifting during drilling. After drilling a point, the drilling machine 104 and the clamping assembly are lifted upwards. Then, the pair of vertical rods 203, the pair of horizontal rods 204, and the workpiece are slid back and forth or left and right to move the next drilling point to the bottom of the drilling machine 104 before drilling can begin.

[0031] like Figure 1-5As shown, the clamping assembly includes: a fixed plate 105, a pair of first slide rods 106, and a pair of first compression springs 108. The fixed plate 105 is fixed to one end of the telescopic rod 103 near the fixed frame 101. The pair of first slide rods 106 slide on both ends of the fixed plate 105 and are located on both sides of the drilling machine 104. A pressure head 107 is fixed to the bottom end of each pair of first slide rods 106. The pair of first compression springs 108 are respectively installed between the pair of pressure heads 107 and the fixed plate 105, and are respectively sleeved on the pair of first slide rods 106. The bottom end of the pressure head 107 is lower than the lowest end of the drill bit of the drilling machine 104.

[0032] When the telescopic rod 103 drives the drilling machine 104 to move downward and drill the workpiece, the bottom end of the pressure head 107 will first contact the workpiece being drilled. At this time, the telescopic rod 103 continues to drive the drilling machine 104 and the fixing plate 105 to move downward. The downward movement of the fixing plate 105 will compress a pair of first compression springs 108. The reverse elastic force of the pair of first compression springs 108 after being compressed will push the pressure head 107 towards the workpiece being drilled, thereby pressing the workpiece tightly with the pressure head 107.

[0033] like Figure 1-5 As shown, a drill groove 109 is drilled on the base plate 1 directly below the drilling machine 104. The drill groove 109 is used to prevent the drilling machine 104 from continuing to move downwards after drilling the workpiece and causing damage to the base plate 1. Clamping angles 222 are provided at the corners of the two pairs of cross connectors 211 that are close to each other. When a pair of vertical rods 203 and a pair of horizontal rods 204 clamp the workpiece, the clamping angles 222 on the two pairs of cross connectors 211 clamp the four corners of the workpiece respectively. A first sliding groove 212 is provided on each of the first sliders 205, and both ends of the vertical rods 203 and horizontal rods 204 slide in the first sliding groove 212. The ends of the vertical rods 203 and horizontal rods 204 slide in the first sliding groove 212, thereby achieving a sliding connection with the first slider 205.

[0034] like Figure 1-5 As shown, the locking assembly 206 includes a lock body 207, a locking ball 208, and multiple locking slots 210. The lock body 207 is fixed to the side wall of the first slider 205. The locking ball 208 is installed inside the lock body 207, with one end of it located outside the lock body 207. A second compression spring 209 is installed between the locking ball 208 and the inner wall of the lock body 207. The multiple locking slots 210 are evenly carved into the first slide rail 201 or the second slide rail 202, and the end of the locking ball 208 located outside the lock body 207 is engaged in one of the locking slots 210.

[0035] When the first slider 205 slides on the first slide rail 201 or the second slide rail 202, it pushes the locking ball 208 to move into the lock body 207. When the first slider 205 stops sliding and is not subjected to external force, the elastic force of the second compression spring 209 moves the locking ball 208 towards the slot 210, so that the end of the locking ball 208 located outside the lock body 207 is locked in the slot 210, thereby stabilizing the first slider 205.

[0036] like Figure 1-5 As shown, the cross connector 211 is cross-shaped and has a pair of second sliding grooves 213 cut out vertically and vertically. The vertical rod 203 and the horizontal rod 204 slide in the pair of second sliding grooves 213 respectively. The vertical rod 203 and the horizontal rod 204 slide in the pair of second sliding grooves 213 to achieve a sliding connection with the cross connector 211.

[0037] like Figure 1-5 As shown, the locking assembly includes: an outer frame 214, a lock head 216, a clamping block 218, and a pushing block 217. The outer frame 214 is fixed to the side wall of the cross connector 211. A control rod 215 is threadedly connected to the top wall of the outer frame 214. A knob 219 is fixed to one end of the control rod 215 outside the outer frame 214. The lock head 216 is fixed to one end of the control rod 215 inside the outer frame 214, and the bottom end of the lock head 216 is located in one of the second sliding grooves 213. The clamping block 218 slides horizontally in the outer frame 214, and one end of the clamping block 218 is located in the other second sliding groove 213. The pushing block 217 slides up and down in the outer frame 214, and there are inclined pushing walls that fit together between the pushing block 217 and the clamping block 218. The pushing block 217 is rotatably configured with respect to the control rod 215.

[0038] When it is necessary to fix the vertical bar 203 and the horizontal bar 204 through the locking assembly, the control lever 215 is rotated by the knob 219. Since the control lever 215 is threadedly connected to the top wall of the outer frame 214, the control lever 215 also moves up and down when it rotates. First, when the control lever 215 rotates, it causes the locking head 216 to move downward, so that the bottom wall of the locking head 216 clamps onto the horizontal bar 204, fixing the horizontal bar 204 and the cross connector 211. At the same time as the control lever 215 rotates and moves downward, it also causes the push block 217 to move downward. The push block 217, through its inclined push wall between itself and the clamping block 218, pushes the clamping block 218 to move towards the vertical bar 203, so that the clamping block 218 clamps the vertical bar 203, thereby fixing the vertical bar 203 and the cross connector 211. In this way, the cross connector 211 is fixed to the vertical bar 203 and the horizontal bar 204.

[0039] like Figure 1-5As shown, a pair of second sliders 220 are fixed on both sides of the clamping block 218. Both second sliders 220 slide on the inner wall of the outer frame 214, and tension springs 221 are installed between the pair of second sliders 220 and the side walls of the outer frame 214. The clamping block 218 slides horizontally within the outer frame 214 by sliding on the two inner walls of the outer frame 214 via the pair of second sliders 220 on its two sides. The tension springs 221 also exert their tension force to pull the clamping block 218 towards the pushing block 217. When it is necessary to unlock the vertical rod 203 and the cross connector 211, the pushing block 217 moves upward, and the tension springs 221 pull the clamping block 218 towards the pushing block 217.

[0040] Working principle: This device is suitable for multi-point drilling operations on regular quadrilateral workpieces. A telescopic cylinder is connected to the top of the telescopic rod 103 to move the rod up and down. In use, the workpiece to be drilled is placed between a pair of vertical rods 203 and a pair of horizontal rods 204. Then, the vertical rods 203 and horizontal rods 204 are pushed closer to the workpiece, and the clamping angles 222 on the two pairs of cross connectors 211 are clamped at the four corners of the workpiece, thereby clamping the workpiece between the vertical rods 203 and the horizontal rods 204.

[0041] Subsequently, knob 219 drives control lever 215 to rotate. Since control lever 215 is threadedly connected to the top wall of outer frame 214, it also moves up and down as it rotates. First, as control lever 215 rotates, it moves locking head 216 downwards, clamping its bottom wall onto crossbar 204, thus fixing crossbar 204 and cross connector 211. Simultaneously, as control lever 215 rotates and moves downwards, it also moves pushing block 217 downwards. Pushing block 217, through its inclined pushing wall between itself and clamping block 218, pushes clamping block 218 towards vertical rod 203, clamping vertical rod 203 and thus fixing vertical rod 203 and cross connector 211. This fixes cross connector 211 to vertical rod 203 and crossbar 204, thereby securing the workpiece between a pair of vertical rods 203 and a pair of crossbars 204.

[0042] Then, the pair of vertical rods 203, the pair of horizontal rods 204, and the workpiece are slid together to move the position of the workpiece to be drilled to the bottom of the drilling machine 104. After the position is moved, the elastic force of the second compression spring 209 moves the locking ball 208 towards the locking groove 210, so that the end of the locking ball 208 located outside the locking body 207 is locked in the locking groove 210, thereby stabilizing the first slider 205 and preventing the workpiece from running away.

[0043] During drilling, the telescopic rod 103 drives the drilling machine 104 downward, and the bottom end of the pressure head 107 will first contact the workpiece being drilled. At this time, the telescopic rod 103 continues to drive the drilling machine 104 and the fixing plate 105 downward. The downward movement of the fixing plate 105 will compress a pair of first compression springs 108. The reverse elastic force of the first compression springs 108 after compression will push the pressure head 107 towards the workpiece being drilled, thereby pressing the pressure head 107 firmly against the workpiece to prevent the workpiece from shifting position during drilling. After drilling a point is completed, the drilling machine 104 and the clamping assembly are lifted upward. Then, the pair of vertical rods 203, the pair of horizontal rods 204, and the workpiece are slid back and forth or left and right to move the next drilling point to the bottom end of the drilling machine 104 before drilling can be performed.

[0044] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drilling apparatus characterized by, include: A base plate, on which a fixing frame is fixed; A support frame is fixed to a fixed frame, and a telescopic rod is installed on the support frame. A drilling machine is installed at one end of the telescopic rod inside the support frame. The clamping assembly is installed at one end of the telescopic rod near the fixed frame and is used to clamp the workpiece during drilling. and A fixing mechanism, installed on a fixed frame, includes: a pair of first slide rails, a pair of second slide rails, a pair of vertical rods, and a pair of horizontal rods. The pair of first slide rails and the pair of second slide rails are respectively fixed inside the four side walls of the fixed frame. A pair of first sliders are slidably arranged on each pair of first slide rails and the pair of second slide rails. Both ends of the pair of vertical rods slide within the first sliders on the pair of first slide rails. Both ends of the pair of horizontal rods slide within the first sliders on the pair of second slide rails. Cross connectors are installed at the intersections of the pair of vertical rods and the pair of horizontal rods, and the vertical rods and horizontal rods slide within the cross connectors. Locking assemblies are provided between the multiple first sliders and the first and second slide rails. Locking assemblies are provided on both pairs of cross connectors.

2. A drilling apparatus according to claim 1, wherein The clamping assembly includes: A fixing plate is fixed to one end of the telescopic rod near the fixing frame; A pair of first sliding rods slide at both ends of a fixed plate and are located on both sides of the drilling machine; each pair of first sliding rods has a pressure head fixed to its bottom end; and A pair of first compression springs are respectively installed between a pair of pressure heads and a fixed plate, and are respectively sleeved on a pair of first slide rods.

3. A drilling apparatus according to claim 2, wherein The bottom of the pressure head is lower than the lowest point of the drill bit of the drilling machine.

4. The drilling apparatus of claim 1, wherein The base plate has a drill groove cut directly below the drilling machine.

5. The drilling apparatus of claim 1, wherein Clamping angles are provided at the corners of the two pairs of cross connectors that are close to each other.

6. The drilling apparatus of claim 1, wherein Each of the first sliders is provided with a first groove, and both ends of the vertical rod and the horizontal rod slide in the first groove.

7. A drilling apparatus according to claim 6, wherein The locking assembly includes: The lock body is fixed to the side wall of the first slider; A ball bearing is installed inside the lock body, with one end extending outside the lock body. A second compression spring is installed between the ball bearing and the inner wall of the lock body. Multiple slots are evenly cut into the first or second slide rail, and the locking ball is located at one end of the lock body and is locked in one of the slots.

8. The drilling apparatus of claim 1, wherein, The cross connector is cross-shaped and has a pair of second sliding grooves cut in an alternating manner. The longitudinal bar and the transverse bar slide in the pair of second sliding grooves respectively.

9. A drilling apparatus according to claim 8, wherein, The locking component includes: The outer frame is fixed to the side wall of the cross connector. A control rod is threadedly connected to the top wall of the outer frame. A knob is fixed to one end of the control rod outside the outer frame. The lock head is fixed to one end of the control lever located within the outer frame, and the bottom end of the lock head is located within one of the second sliding grooves; The clamping block slides horizontally within the outer frame, with one end of the clamping block positioned within another second sliding groove; The push block slides up and down in the outer frame, and there are inclined push walls that fit together between it and the clamping block. The push block and the control rod are rotatably connected.

10. A drilling apparatus according to claim 9, wherein A pair of second sliders are fixed on both sides of the clamping block. Both second sliders slide on the inner wall of the outer frame, and tension springs are installed between the pair of second sliders and the side wall of the outer frame.

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