Auxiliary clamp for machining machine tool body

Abstract

The utility model relates to an auxiliary clamp for machining a machine tool body, and belongs to the technical field of machine tool body production. Comprising a door-shaped frame installed on the upper surface of a workbench and a pressing mechanism used for pressing and fixing the side edge of a machine tool body, a lifting driving mechanism is installed on a cross beam of the door-shaped frame, a sliding frame for guiding sliding of the pressing mechanism is installed at the telescopic end of the lifting driving mechanism, and the sliding frame is horizontally arranged and driven by the lifting driving mechanism to ascend and descend. And a telescopic reciprocating driving mechanism for driving the pressing mechanism to slide relative to the sliding frame is mounted on the sliding frame. The machine tool has the advantages that the telescopic reciprocating driving mechanism is used for controlling one end of the sliding frame to be close to the machine tool body, then the lifting driving mechanism is used for controlling the pressing mechanism to drive the sliding frame to descend, the end of the sliding frame is connected to the base of the machine tool body in a pressing mode, and then the machine tool body can be effectively fixed to the upper surface of the workbench. A grinding machine and a milling machine are matched for grinding the guide rail mounting surface, and the pressing efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model relates to an auxiliary clamp for machining a machine tool bed, belonging to the technical field of machine tool bed production. Background Art

[0002] At present, most of the machine tool beds on the market are made of one-piece castings. They are cast as a whole. During the production process, molten metal liquid is poured into a pre-made mold. The material is generally cast iron or cast aluminum alloy.

[0003] After searching, the patent number CN202010004918.9 discloses a CNC machine tool workbench base. It includes a support base, which is a hollow shell structure, and multiple anchor umbrella hooks are arranged on both sides of the bottom end of the support base, and the upper ends of the multiple anchor umbrella hooks are threadedly connected to the connection between the support base and the support base with anchor bolts, and the upper ends of the multiple anchor bolts are provided with second hexagonal nuts, and the second hexagonal nuts are threadedly connected to the anchor umbrella hooks, and the middle parts of the multiple anchor bolts are provided with anchor nuts at the connection with the support base, and the lower ends of the multiple anchor bolts are provided with anchor supports.

[0004] Although the production of the above-mentioned patented CNC machine tool worktable base can be realized at present, the existing technology is not comprehensive and has the following disadvantages: the clamping device for machine tool bed processing still uses the traditional long clamping plate to effectively fix the machine tool bed to the upper surface of the worktable, which requires manual operation, large assembly workload, insufficient clamping state and low work efficiency.

[0005] In order to solve one of the above problems, an auxiliary fixture for machine tool bed processing is urgently needed. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: how to first use the telescopic reciprocating drive mechanism to control one end of the slide to approach the machine tool bed, and when it reaches the specified position, use the lifting drive mechanism to control the clamping mechanism to drive the slide to descend, and the end of the slide is pressed onto the base of the machine tool bed, so that the machine tool bed can be effectively fixed on the upper surface of the workbench. For this purpose, an auxiliary clamp for machine tool bed processing is provided.

[0007] The auxiliary clamp for machine tool bed processing described in the utility model includes a portal frame installed on the upper surface of the workbench and a clamping mechanism for clamping and fixing the side of the machine tool bed, and is characterized in that a lifting drive mechanism is installed on the crossbeam of the portal frame, and a slide serving as a sliding guide for the clamping mechanism is installed at the telescopic end of the lifting drive mechanism, the slide is horizontally arranged and driven to rise and fall by the lifting drive mechanism, and a telescopic reciprocating drive mechanism is installed on the slide to drive the clamping mechanism to slide relative to the slide.

[0008] Preferably, the portal frame comprises a horizontally arranged crossbeam, the two ends of which are respectively vertically connected to a left column and a right column, the bottoms of the left column and the right column are respectively provided with a first connecting foot and a second connecting foot, and the first connecting foot and the second connecting foot are respectively detachably mounted with a first T-bolt and a second T-bolt connected to the T-slot of the workbench. It is easy to install and is suitable for a workbench with a T-slot.

[0009] Preferably, the slide frame includes a left sliding sleeve and a right sliding sleeve that are parallel and horizontally arranged, and an intermediate connecting pipe is vertically connected between the left sliding sleeve and the right sliding sleeve to form an H-shaped structure, and a penetrating middle connecting hole is arranged in the middle of the intermediate connecting pipe, and the middle connecting hole is matched and connected with the telescopic end of the lifting drive mechanism, so as to provide guidance for the clamping mechanism and ensure the strength of the structure.

[0010] Preferably, the clamping mechanism comprises a first pressure rod and a second pressure rod which are parallel to each other and arranged horizontally, the tail ends of the first pressure rod and the second pressure rod are connected by a tail end connecting tube, the left sliding sleeve is sleeved on the first pressure rod and cooperates with the first pressure rod to telescopically slide, and the right sliding sleeve is sleeved on the second pressure rod and cooperates with the second pressure rod to telescopically slide. A set of clamping mechanisms has two groups of pressure rods, and the two groups of pressure rods are simultaneously pressed on the base of the machine tool bed, effectively fixing the machine tool bed on the upper surface of the workbench. The lower surface of the tail end connecting tube is lower than the lower surfaces of the first pressure rod and the second pressure rod, and the height difference is equal to or slightly less than the thickness of the base of the machine tool bed, so that when the clamping mechanism is in the low position, the tail end connecting tube abuts against the upper surface of the workbench, and at the same time ensures that the two groups of pressure rods are simultaneously pressed on the base of the machine tool bed.

[0011] Preferably, the lifting drive mechanism is a vertically arranged hydraulic cylinder, the front cylinder cover of the lifting drive mechanism is fixed to the middle of the cross beam, and the piston rod of the portal frame passes through the cross beam and is connected to the middle connecting pipe.

[0012] Preferably, the end of the piston rod of the lifting drive mechanism is provided with an external thread and a first nut and a second nut matching the external thread. The end of the piston rod of the lifting drive mechanism passes through the middle connecting hole. The first nut and the second nut are respectively clamped on the upper and lower sides of the middle connecting tube to fix the piston rod of the lifting drive mechanism to the middle connecting tube.

[0013] Preferably, the telescopic reciprocating drive mechanism is a cylinder, the cylinder body of the telescopic reciprocating drive mechanism is fixed on the tail end connecting pipe, and the telescopic rod of the telescopic reciprocating drive mechanism is fixed on the middle connecting pipe.

[0014] Preferably, the left sliding sleeve, the right sliding sleeve, the middle connecting pipe, the first pressure rod, the second pressure rod and the tail end connecting pipe are all square tubes.

[0015] Preferably, the lifting drive mechanisms and telescopic reciprocating drive mechanisms of multiple sets of auxiliary fixtures for machine tool bed processing are respectively connected to the corresponding existing hydraulic control system and pneumatic control system to achieve synchronous telescopic extension and retraction of multiple sets of lifting drive mechanisms and multiple sets of telescopic reciprocating drive mechanisms.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The auxiliary clamp for machine tool bed processing described in the utility model first hoists and transfers the machine tool bed to be processed to the upper surface of the workbench, and respectively installs multiple sets of auxiliary clamps for machine tool bed processing on the upper surfaces of the workbenches on both sides of the machine tool bed. When the machine tool bed needs to be fixed, the telescopic reciprocating drive mechanism is first used to control one end of the slide to approach the machine tool bed. When it reaches the specified position, the lifting drive mechanism is finally used to control the clamping mechanism to drive the slide to descend. The end of the slide is pressed onto the base of the machine tool bed, so that the machine tool bed can be effectively fixed on the upper surface of the workbench. The guide rail mounting surface can be polished and holes can be drilled on the guide rail mounting surface in cooperation with a grinder or a milling machine, thereby improving the clamping efficiency of the equipment.

[0018] The auxiliary clamp for machine tool bed processing described in the utility model has an intermediate connecting pipe vertically connected between the left sliding sleeve and the right sliding sleeve to form an H-shaped structure. A penetrating middle connecting hole is provided in the middle of the intermediate connecting pipe. The middle connecting hole is cooperatively connected with the telescopic end of the lifting drive mechanism to provide guidance for the clamping mechanism while ensuring the strength of the structure.

[0019] The auxiliary fixture for machine tool bed processing described in the utility model can realize multiple groups of joint control. The lifting drive mechanisms and telescopic reciprocating drive mechanisms of multiple groups of auxiliary fixtures for machine tool bed processing are respectively connected to the corresponding existing hydraulic control system and air control system to realize the synchronous telescopic extension and retraction of multiple groups of lifting drive mechanisms and the synchronous telescopic reciprocating drive mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0021] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3The structure of the utility model is shown in FIG. Figure 3 ;

[0024] Figure 4 It is a schematic diagram of the external structure of the slide, the clamping mechanism and the telescopic reciprocating drive mechanism of the utility model;

[0025] Figure 5 Schematic diagram of the external structure of the portal frame.

[0026] In the figure: 1, portal frame 1.1, crossbeam 1.2, left column 1.3, right column 1.4, first connecting foot 1.5, second connecting foot 1.6, first T-bolt 1.7, second T-bolt 2, lifting drive mechanism 3, slide 3.1, left sliding sleeve 3.2, right sliding sleeve 3.3, middle connecting pipe 3.4, middle connecting hole 4, clamping mechanism 4.1, first pressure rod 4.2, second pressure rod 4.3, tail end connecting pipe 5, telescopic reciprocating drive mechanism 6, workbench 7, machine tool bed. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings: The utility model is further illustrated below through specific embodiments, but is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the utility model.

[0028] Embodiment 1, as Figure 1-2 As shown, the auxiliary fixture for machine tool bed processing includes a gantry 1 installed on the upper surface of a workbench 6 and a clamping mechanism 4 for clamping and fixing the side of the machine tool bed, a lifting drive mechanism 2 is installed on the crossbeam of the gantry 1, a slide 3 serving as a sliding guide for the clamping mechanism 4 is installed at the telescopic end of the lifting drive mechanism 2, the slide 3 is horizontally arranged and driven to rise and fall by the lifting drive mechanism 2, and a telescopic reciprocating drive mechanism 5 is installed on the slide 3 for driving the clamping mechanism 4 to slide relative to the slide 3.

[0029] First, the machine tool bed 7 to be processed is hoisted and transferred to the upper surface of the workbench 6, and multiple sets of auxiliary fixtures for machine tool bed processing are respectively installed on the upper surfaces of the workbench 6 on both sides of the machine tool bed 7. The initial state of each set of auxiliary fixtures (such as Figure 1 As shown in FIG. 1 ), when the machine tool bed 7 needs to be fixed, the telescopic reciprocating drive mechanism 5 is first used to control one end of the slide 3 to approach the machine tool bed 7, and when it reaches the specified position (such as Figure 2 As shown), finally, the lifting drive mechanism 2 is used to control the clamping mechanism 4 to drive the slide 3 to descend, and the end of the slide 3 is pressed on the base of the machine tool bed 7 (as shown in FIG. Figure 3As shown), the machine tool bed 7 can be effectively fixed on the upper surface of the workbench 6, and the guide rail mounting surface can be polished or drilled in conjunction with a grinder or a milling machine.

[0030] Embodiment 2, as Figure 1-2 As shown, the auxiliary fixture for machine tool bed processing includes a gantry 1 installed on the upper surface of a workbench 6 and a clamping mechanism 4 for clamping and fixing the side of the machine tool bed, a lifting drive mechanism 2 is installed on the crossbeam of the gantry 1, a slide 3 serving as a sliding guide for the clamping mechanism 4 is installed at the telescopic end of the lifting drive mechanism 2, the slide 3 is horizontally arranged and driven to rise and fall by the lifting drive mechanism 2, and a telescopic reciprocating drive mechanism 5 is installed on the slide 3 for driving the clamping mechanism 4 to slide relative to the slide 3.

[0031] Further, refer to Figure 5 The portal frame 1 comprises a horizontally arranged crossbeam 1.1, the two ends of which are respectively vertically connected with a left column 1.2 and a right column 1.3, the bottoms of which are respectively provided with a first connecting foot 1.4 and a second connecting foot 1.5, the first connecting foot 1.4 and the second connecting foot 1.5 are respectively detachably provided with a first T-bolt 1.6 and a second T-bolt 1.7 connected with the T-slot of the workbench. The installation is convenient and suitable for a workbench 6 with a T-slot.

[0032] Further, refer to Figure 4 The slide 3 includes a left sliding sleeve 3.1 and a right sliding sleeve 3.2 which are parallel and horizontally arranged. An intermediate connecting pipe 3.3 is vertically connected between the left sliding sleeve 3.1 and the right sliding sleeve 3.2 to form an H-shaped structure. A middle connecting hole 3.4 is provided in the middle of the intermediate connecting pipe 3.3. The middle connecting hole 3.4 is matched and connected with the telescopic end of the lifting drive mechanism 2. While providing guidance for the pressing mechanism 4, the strength of the structure is ensured.

[0033] Furthermore, the clamping mechanism 4 includes a first pressure rod 4.1 and a second pressure rod 4.2 which are parallel and horizontally arranged, the tail ends of the first pressure rod 4.1 and the second pressure rod 4.2 are connected by a tail end connecting tube 4.3, the left sliding sleeve 3.1 is sleeved on the first pressure rod 4.1 and cooperates with the first pressure rod 4.1 to telescopically slide, and the right sliding sleeve 3.2 is sleeved on the second pressure rod 4.2 and cooperates with the second pressure rod 4.2 to telescopically slide. A set of clamping mechanisms 4 has two groups of pressure rods, and the two groups of pressure rods are simultaneously pressed on the base of the machine tool bed 7 to effectively fix the machine tool bed 7 on the upper surface of the workbench 6. The lower surface of the tail end connecting tube 4.3 is lower than the lower surfaces of the first pressure rod 4.1 and the second pressure rod 4.2, and the height difference is equal to or slightly less than the thickness of the base of the machine tool bed 7, so that when the clamping mechanism 4 is in the low position, the tail end connecting tube 4.3 abuts against the upper surface of the workbench 6, and at the same time ensures that the two groups of pressure rods are pressed onto the base of the machine tool bed 7 at the same time.

[0034] Furthermore, the lifting drive mechanism 2 is a vertically arranged hydraulic cylinder, the front cylinder head of the lifting drive mechanism 2 is fixed to the middle of the cross beam 1.1, and the piston rod of the portal frame 1 passes through the cross beam 1.1 and is connected to the middle connecting pipe 3.3.

[0035] Furthermore, the end of the piston rod of the lifting drive mechanism 2 is provided with an external thread and a first nut and a second nut matching the external thread. The end of the piston rod of the lifting drive mechanism 2 passes through the middle connecting hole 3.4. The first nut and the second nut are respectively clamped on the upper and lower sides of the intermediate connecting tube 3.3 to fix the piston rod of the lifting drive mechanism 2 to the intermediate connecting tube 3.3.

[0036] Furthermore, the telescopic reciprocating drive mechanism 5 is a cylinder, the cylinder body of the telescopic reciprocating drive mechanism 5 is fixed on the tail end connecting pipe 4.3, and the telescopic rod of the telescopic reciprocating drive mechanism 5 is fixed on the middle connecting pipe 3.3.

[0037] Furthermore, the left sliding sleeve 3.1, the right sliding sleeve 3.2, the middle connecting pipe 3.3, the first pressure rod 4.1, the second pressure rod 4.2 and the tail connecting pipe 4.3 are all square tubes.

[0038] Furthermore, the lifting drive mechanisms 2 and telescopic reciprocating drive mechanisms 5 of multiple sets of auxiliary fixtures for machine tool bed processing are respectively connected to the corresponding existing hydraulic control systems and pneumatic control systems to achieve synchronous telescopic extension and retraction of multiple sets of lifting drive mechanisms 2 and synchronous telescopic reciprocating drive mechanisms 5.

[0039] The auxiliary clamp for machine tool bed processing described in the utility model first hoists and transfers the machine tool bed to be processed to the upper surface of the workbench, and respectively installs multiple sets of auxiliary clamps for machine tool bed processing on the upper surfaces of the workbenches on both sides of the machine tool bed. When the machine tool bed needs to be fixed, the telescopic reciprocating drive mechanism is first used to control one end of the slide to approach the machine tool bed. When it reaches the specified position, the lifting drive mechanism is finally used to control the clamping mechanism to drive the slide to descend. The end of the slide is pressed onto the base of the machine tool bed, so that the machine tool bed can be effectively fixed on the upper surface of the workbench. The guide rail mounting surface can be polished and holes can be drilled on the guide rail mounting surface in cooperation with a grinder or a milling machine, thereby improving the clamping efficiency of the equipment.

[0040] The auxiliary clamp for machine tool bed processing described in the utility model has an intermediate connecting pipe vertically connected between the left sliding sleeve and the right sliding sleeve to form an H-shaped structure. A penetrating middle connecting hole is provided in the middle of the intermediate connecting pipe. The middle connecting hole is cooperatively connected with the telescopic end of the lifting drive mechanism to provide guidance for the clamping mechanism while ensuring the strength of the structure.

[0041] The auxiliary fixture for machine tool bed processing described in the utility model can realize multiple groups of joint control. The lifting drive mechanisms and telescopic reciprocating drive mechanisms of multiple groups of auxiliary fixtures for machine tool bed processing are respectively connected to the corresponding existing hydraulic control system and air control system to realize the synchronous telescopic extension and retraction of multiple groups of lifting drive mechanisms and the synchronous telescopic reciprocating drive mechanisms.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the present utility model is defined by the attached claims and their equivalents.

[0043] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. An auxiliary fixture for machining a machine tool bed, comprising a gantry mounted on the upper surface of a workbench and a clamping mechanism for clamping and fixing the side of the machine tool bed, characterized in that: A lifting drive mechanism is installed on the crossbeam of the portal frame, and a slide that serves as a sliding guide for a clamping mechanism is installed at the telescopic end of the lifting drive mechanism. The slide is horizontally arranged and driven to rise and fall by the lifting drive mechanism. A telescopic reciprocating drive mechanism that drives the clamping mechanism to slide relative to the slide is installed on the slide.

2. The auxiliary fixture for machine tool bed processing according to claim 1, characterized in that: The portal frame includes a horizontally arranged crossbeam, and the two ends of the crossbeam are respectively vertically connected to a left column and a right column, and the bottoms of the left column and the right column are respectively provided with a first connecting foot and a second connecting foot, and the first connecting foot and the second connecting foot are respectively detachably installed with a first T-bolt and a second T-bolt connected to the T-slot of the workbench.

3. The auxiliary fixture for machine tool bed processing according to claim 2, characterized in that: The slide frame includes a left sliding sleeve and a right sliding sleeve which are parallel to each other and horizontally arranged. An intermediate connecting pipe is vertically connected between the left sliding sleeve and the right sliding sleeve to form an H-shaped structure. A penetrating middle connecting hole is arranged in the middle of the middle connecting pipe, and the middle connecting hole is cooperated and connected with the telescopic end of the lifting drive mechanism.

4. The auxiliary fixture for machine tool bed processing according to claim 3, characterized in that: The clamping mechanism includes a first pressure rod and a second pressure rod parallel to each other and horizontally arranged, the tail ends of the first pressure rod and the second pressure rod are connected by a tail end connecting tube, the left sliding sleeve is sleeved on the first pressure rod and cooperates with the first pressure rod to telescopically slide, and the right sliding sleeve is sleeved on the second pressure rod and cooperates with the second pressure rod to telescopically slide.

5. The auxiliary fixture for machine tool bed processing according to claim 4, characterized in that: The lifting drive mechanism is a vertically arranged hydraulic cylinder, the front cylinder cover of the lifting drive mechanism is fixed to the middle of the cross beam, and the piston rod of the portal frame passes through the cross beam and is connected to the middle connecting pipe.

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